[INFO] fetching crate lark-error 0.1.0...
[INFO] extracting crate lark-error 0.1.0 into work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/lark-error/0.1.0
[INFO] extracting crate lark-error 0.1.0 into work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/lark-error/0.1.0
[INFO] validating manifest of lark-error-0.1.0 on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of lark-error-0.1.0 on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing lark-error-0.1.0
[INFO] finished frobbing lark-error-0.1.0
[INFO] frobbed toml for lark-error-0.1.0 written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/lark-error/0.1.0/Cargo.toml
[INFO] started frobbing lark-error-0.1.0
[INFO] finished frobbing lark-error-0.1.0
[INFO] frobbed toml for lark-error-0.1.0 written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/lark-error/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking lark-error-0.1.0 against try#8f81d0bf6baf07b92f1246696722485c4ca0b049 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-1/try#8f81d0bf6baf07b92f1246696722485c4ca0b049:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/lark-error/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] af639ba03914e60f59b880e9b074fec06d9dbd50de2c299eb28c225abf3a26ee
[INFO] running `"docker" "start" "-a" "af639ba03914e60f59b880e9b074fec06d9dbd50de2c299eb28c225abf3a26ee"`
[INFO] [stderr]     Checking lark-error v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: suffixes on a tuple index are invalid
[INFO] [stderr]   --> src/lib.rs:39:30
[INFO] [stderr]    |
[INFO] [stderr] 39 | #[derive(Copy, Clone, Debug, DebugWith, PartialEq, Eq, Hash, PartialOrd, Ord)]
[INFO] [stderr]    |                              ^^^^^^^^^ invalid suffix `usize`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `usize` is *temporarily* accepted on tuple index fields as it was incorrectly accepted on stable for a few releases
[INFO] [stderr]    = help: on proc macros, you'll want to use `syn::Index::from` or `proc_macro::Literal::*_unsuffixed` for code that will desugar to tuple field access
[INFO] [stderr]    = note: for more context, see https://github.com/rust-lang/rust/issues/60210
[INFO] [stderr] 
[INFO] [stderr] warning: suffixes on a tuple index are invalid
[INFO] [stderr]   --> src/lib.rs:39:30
[INFO] [stderr]    |
[INFO] [stderr] 39 | #[derive(Copy, Clone, Debug, DebugWith, PartialEq, Eq, Hash, PartialOrd, Ord)]
[INFO] [stderr]    |                              ^^^^^^^^^ invalid suffix `usize`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `usize` is *temporarily* accepted on tuple index fields as it was incorrectly accepted on stable for a few releases
[INFO] [stderr]    = help: on proc macros, you'll want to use `syn::Index::from` or `proc_macro::Literal::*_unsuffixed` for code that will desugar to tuple field access
[INFO] [stderr]    = note: for more context, see https://github.com/rust-lang/rust/issues/60210
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `"docker" "inspect" "af639ba03914e60f59b880e9b074fec06d9dbd50de2c299eb28c225abf3a26ee"`
[INFO] running `"docker" "rm" "-f" "af639ba03914e60f59b880e9b074fec06d9dbd50de2c299eb28c225abf3a26ee"`
[INFO] [stdout] af639ba03914e60f59b880e9b074fec06d9dbd50de2c299eb28c225abf3a26ee