Bump rust-toolchain from 1.96.0 to 1.98.1 in the rust group

[dependabot]

Warning

Cooldown could not be applied because no publication date was available from the registry.

Bumps the rust group with 1 update: rust-toolchain.

Updates rust-toolchain from 1.96.0 to 1.98.1

Release notes

Sourced from rust-toolchain's releases.

Rust 1.98.1

• rustc: fix miscompilation in generating vtables

Rust 1.98.0

Language

• Allow shortening lifetime of &mut when unsize-coercing, even in an invariant position. For example, you can now coerce a Cell<&'long mut i32> to a Cell<&'short mut dyn Send>. Such shortenings were already previously allowed when coercing a &mut to a &, or coercing a & to a &.
• Add deny-by-default invalid_runtime_symbol_definitions lint and warn-by-default suspicious_runtime_symbol_definitions lint
  • The lints currently specifically targets core runtime symbols like memcmp, memset, strlen, ... and is planned to be expanded in the next few releases.
• Add warn-by-default c_void_returns lint to check core::ffi::c_void as a return type

Platform Support

• Add powerpc64-unknown-linux-gnuelfv2 as Tier 3
• Add aarch64-unknown-linux-pauthtest as Tier 3 target
• Promote thumbv7a-none-eabi to Tier 2
• Promote thumbv7a-none-eabihf to Tier 2
• Promote thumbv7r-none-eabi to Tier 2
• Promote thumbv7r-none-eabihf to Tier 2
• Promote thumbv8r-none-eabihf to Tier 2

Refer to Rust's platform support page for more information on Rust's tiered platform support.

Libraries

• Change Location<'_> lifetime to 'static in Panic[Hook]Info
• Document panic in RangeInclusive::from(legacy::RangeInclusive)
• Document that ManuallyDrop's Box interaction has been fixed
• Stabilize LoongArch CRC Intrinsics
• The derive macro is available at {core,std}::derive. This was previously unintentionally stabilized in 1.96, but is now explicitly accepted as a stabilized API.
  • Please note that the MSRV for {core,std}::derive will be 1.96, and not 1.98.

Stabilized APIs

• str::substr_range
• [T]::subslice_range
• core::fmt::NumBuffer
• <{integer}>::format_into
• Send/Sync for std::process::CommandArgs
• {fN}::algebraic_add

... (truncated)

Changelog

Sourced from rust-toolchain's changelog.

Version 1.98.1 (2026-09-03)

• rustc: fix miscompilation in generating vtables

Version 1.98.0 (2026-08-20)

Language

• Allow shortening lifetime of &mut when unsize-coercing, even in an invariant position. For example, you can now coerce a Cell<&'long mut i32> to a Cell<&'short mut dyn Send>. Such shortenings were already previously allowed when coercing a &mut to a &, or coercing a & to a &.
• Add deny-by-default invalid_runtime_symbol_definitions lint and warn-by-default suspicious_runtime_symbol_definitions lint
  • The lints currently specifically targets core runtime symbols like memcmp, memset, strlen, ... and is planned to be expanded in the next few releases.
• Add warn-by-default c_void_returns lint to check core::ffi::c_void as a return type

Platform Support

• Add powerpc64-unknown-linux-gnuelfv2 as Tier 3
• Add aarch64-unknown-linux-pauthtest as Tier 3 target
• Promote thumbv7a-none-eabi to Tier 2
• Promote thumbv7a-none-eabihf to Tier 2
• Promote thumbv7r-none-eabi to Tier 2
• Promote thumbv7r-none-eabihf to Tier 2
• Promote thumbv8r-none-eabihf to Tier 2

Refer to Rust's platform support page for more information on Rust's tiered platform support.

Libraries

• Change Location<'_> lifetime to 'static in Panic[Hook]Info
• Document panic in RangeInclusive::from(legacy::RangeInclusive)
• Document that ManuallyDrop's Box interaction has been fixed
• Stabilize LoongArch CRC Intrinsics
• The derive macro is available at {core,std}::derive. This was previously unintentionally stabilized in 1.96, but is now explicitly accepted as a stabilized API.
  • Please note that the MSRV for {core,std}::derive will be 1.96, and not 1.98.

... (truncated)

Commits

• 48a229c Auto merge of #161555 - lcnr:backport-erased-handling, r=Mark-Simulacrum
• 4014df6 Bust sccache's cache
• c1e5701 Add release notes
• c10713e update version to 1.98.1
• 41c7a25 add test
• 9c0aebd rerun if we meet any opaques in post analysis
• 88d9e12 Auto merge of #161313 - cuviper:stable-next, r=cuviper
• 8f6f43c update relnotes
• c6d0dd0 Bump stable channel
• 824ef7e Revert "riscv: promote d, e, and f target_features to CfgStableToggleUnstable"
• Additional commits viewable in compare view

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[codspeed]

Merging this PR will not alter performance

✅ 14 untouched benchmarks

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_{Comparing dependabot/rust_toolchain/rust-55f61a7d32 (6d86694) with main (f451204)}

[saulshanabrook]

@dependabot ignore rust-toolchain minor version

rtd has a maximum rust toolchain of this amount so keeping it there to match

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