[INFO] cloning repository davidpeklak/cargo-stdx-check
[INFO] running `"git" "clone" "--bare" "git://github.com/davidpeklak/cargo-stdx-check.git" "work/cache/sources/gh/davidpeklak/cargo-stdx-check"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/davidpeklak/cargo-stdx-check'...
[INFO] running `"git" "clone" "work/cache/sources/gh/davidpeklak/cargo-stdx-check" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/davidpeklak/cargo-stdx-check"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/davidpeklak/cargo-stdx-check'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/davidpeklak/cargo-stdx-check" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/davidpeklak/cargo-stdx-check"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/davidpeklak/cargo-stdx-check'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6b0beb957152519476a52be3bba72611dc4064fa
[INFO] sha for GitHub repo davidpeklak/cargo-stdx-check: 6b0beb957152519476a52be3bba72611dc4064fa
[INFO] validating manifest of davidpeklak/cargo-stdx-check 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 davidpeklak/cargo-stdx-check 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 davidpeklak/cargo-stdx-check
[INFO] finished frobbing davidpeklak/cargo-stdx-check
[INFO] frobbed toml for davidpeklak/cargo-stdx-check written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/davidpeklak/cargo-stdx-check/Cargo.toml
[INFO] started frobbing davidpeklak/cargo-stdx-check
[INFO] finished frobbing davidpeklak/cargo-stdx-check
[INFO] frobbed toml for davidpeklak/cargo-stdx-check written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/davidpeklak/cargo-stdx-check/Cargo.toml
[INFO] crate davidpeklak/cargo-stdx-check already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking davidpeklak/cargo-stdx-check against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-1/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/davidpeklak/cargo-stdx-check:/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" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b9ea2a28efc886993e972eb9195fa4c30fd3da22691edef3806fb16d0f018a3d
[INFO] running `"docker" "start" "-a" "b9ea2a28efc886993e972eb9195fa4c30fd3da22691edef3806fb16d0f018a3d"`
[INFO] [stderr]     Checking toml v0.4.2
[INFO] [stderr]     Checking regex v0.2.2
[INFO] [stderr]     Checking docopt v0.8.1
[INFO] [stderr]     Checking cargo-stdx-check v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:186:13
[INFO] [stderr]     |
[INFO] [stderr] 186 |         let mut set = grouped.entry(name).or_insert(BTreeSet::new());
[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/main.rs:186:13
[INFO] [stderr]     |
[INFO] [stderr] 186 |         let mut set = grouped.entry(name).or_insert(BTreeSet::new());
[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 8.04s
[INFO] running `"docker" "inspect" "b9ea2a28efc886993e972eb9195fa4c30fd3da22691edef3806fb16d0f018a3d"`
[INFO] running `"docker" "rm" "-f" "b9ea2a28efc886993e972eb9195fa4c30fd3da22691edef3806fb16d0f018a3d"`
[INFO] [stdout] b9ea2a28efc886993e972eb9195fa4c30fd3da22691edef3806fb16d0f018a3d