[INFO] updating cached repository utam0k/r8cc
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/utam0k/r8cc
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/utam0k/r8cc" "work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/utam0k/r8cc"`
[INFO] [stderr] Cloning into 'work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/utam0k/r8cc'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/utam0k/r8cc" "work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/utam0k/r8cc"`
[INFO] [stderr] Cloning into 'work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/utam0k/r8cc'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 60d03075da9d0a8f73d50f99b70cd2de706f7ca6
[INFO] sha for GitHub repo utam0k/r8cc: 60d03075da9d0a8f73d50f99b70cd2de706f7ca6
[INFO] validating manifest of utam0k/r8cc on toolchain master#1891bfa80364eead426517c68de6947b7692e2de
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of utam0k/r8cc on toolchain try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing utam0k/r8cc
[INFO] finished frobbing utam0k/r8cc
[INFO] frobbed toml for utam0k/r8cc written to work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/utam0k/r8cc/Cargo.toml
[INFO] started frobbing utam0k/r8cc
[INFO] finished frobbing utam0k/r8cc
[INFO] frobbed toml for utam0k/r8cc written to work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/utam0k/r8cc/Cargo.toml
[INFO] crate utam0k/r8cc already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking utam0k/r8cc against try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a for pr-60261
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60261/worker-0/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/utam0k/r8cc:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 881dd04167c28e39898ba0d77ed93d4d7c5dc7737efe9ef16610478f9f2c2bf5
[INFO] running `"docker" "start" "-a" "881dd04167c28e39898ba0d77ed93d4d7c5dc7737efe9ef16610478f9f2c2bf5"`
[INFO] [stderr]     Checking r8cc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:260:21
[INFO] [stderr]     |
[INFO] [stderr] 260 |                 let mut reg;
[INFO] [stderr]     |                     ----^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:260:21
[INFO] [stderr]     |
[INFO] [stderr] 260 |                 let mut reg;
[INFO] [stderr]     |                     ----^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.40s
[INFO] running `"docker" "inspect" "881dd04167c28e39898ba0d77ed93d4d7c5dc7737efe9ef16610478f9f2c2bf5"`
[INFO] running `"docker" "rm" "-f" "881dd04167c28e39898ba0d77ed93d4d7c5dc7737efe9ef16610478f9f2c2bf5"`
[INFO] [stdout] 881dd04167c28e39898ba0d77ed93d4d7c5dc7737efe9ef16610478f9f2c2bf5