[INFO] crate command-macros 0.2.6 is already in cache
[INFO] checking command-macros-0.2.6 against try#00e4530a79c42b21a6ca2ac1edb597c90d21f89f for pr-64672
[INFO] extracting crate command-macros 0.2.6 into work/builds/worker-2/source
[INFO] validating manifest of crates.io crate command-macros 0.2.6 on toolchain 00e4530a79c42b21a6ca2ac1edb597c90d21f89f
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+00e4530a79c42b21a6ca2ac1edb597c90d21f89f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate command-macros 0.2.6
[INFO] finished tweaking crates.io crate command-macros 0.2.6
[INFO] tweaked toml for crates.io crate command-macros 0.2.6 written to work/builds/worker-2/source/Cargo.toml
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+00e4530a79c42b21a6ca2ac1edb597c90d21f89f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+00e4530a79c42b21a6ca2ac1edb597c90d21f89f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+00e4530a79c42b21a6ca2ac1edb597c90d21f89f" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] fd875bc7abe1aaf6d21a364d62c59e85c97297faea5e8d83ac41d4930a85bb3e
[INFO] running `"docker" "start" "-a" "fd875bc7abe1aaf6d21a364d62c59e85c97297faea5e8d83ac41d4930a85bb3e"`
[INFO] [stderr]     Checking command-macros v0.2.6 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:300:17
[INFO] [stderr]     |
[INFO] [stderr] 300 |             let mut cmd = $e;
[INFO] [stderr]     |                 ----^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 492 |     let cmd: &mut Command = cmd!({cmd} foo);
[INFO] [stderr]     |                             --------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `"docker" "inspect" "fd875bc7abe1aaf6d21a364d62c59e85c97297faea5e8d83ac41d4930a85bb3e"`
[INFO] running `"docker" "rm" "-f" "fd875bc7abe1aaf6d21a364d62c59e85c97297faea5e8d83ac41d4930a85bb3e"`
[INFO] [stdout] fd875bc7abe1aaf6d21a364d62c59e85c97297faea5e8d83ac41d4930a85bb3e