[INFO] fetching crate ff-find 0.24.7... [INFO] extracting crate ff-find 0.24.7 into work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/ff-find/0.24.7 [INFO] extracting crate ff-find 0.24.7 into work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/ff-find/0.24.7 [INFO] validating manifest of ff-find-0.24.7 on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of ff-find-0.24.7 on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing ff-find-0.24.7 [INFO] finished frobbing ff-find-0.24.7 [INFO] frobbed toml for ff-find-0.24.7 written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/ff-find/0.24.7/Cargo.toml [INFO] started frobbing ff-find-0.24.7 [INFO] finished frobbing ff-find-0.24.7 [INFO] frobbed toml for ff-find-0.24.7 written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/ff-find/0.24.7/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache lock [INFO] checking ff-find-0.24.7 against master#9f06855064ed06a50c496577b21ca50f92a2e67d for pr-61874 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-2/master#9f06855064ed06a50c496577b21ca50f92a2e67d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/ff-find/0.24.7:/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" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] a7d9a6d97e595ddb13bdafd14e34879a0e4232ba45d35bc0927e72b5e98ac731 [INFO] running `"docker" "start" "-a" "a7d9a6d97e595ddb13bdafd14e34879a0e4232ba45d35bc0927e72b5e98ac731"` [INFO] [stderr] Checking bstr v0.1.4 [INFO] [stderr] Compiling ff-find v0.24.7 (/opt/crater/workdir) [INFO] [stderr] Checking globset v0.4.3 [INFO] [stderr] Checking ignore v0.4.7 [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/walk.rs:121:17 [INFO] [stderr] | [INFO] [stderr] 121 | let mut counter = Counter::new(MAX_CNT / threads, Some(quitting)); [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] error: Could not compile `ff-find`. [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc --crate-name ff src/main.rs --color never --emit=dep-info,metadata -C debuginfo=2 --test -C metadata=6133045bf3e44a8e -C extra-filename=-6133045bf3e44a8e --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --extern aho_corasick=/opt/crater/target/debug/deps/libaho_corasick-7ac776711cb4d9ec.rmeta --extern ansi_term=/opt/crater/target/debug/deps/libansi_term-c7844e2966d4e84d.rmeta --extern atty=/opt/crater/target/debug/deps/libatty-4b7c11c5dd8b4bf4.rmeta --extern clap=/opt/crater/target/debug/deps/libclap-abbfa7d39ace8702.rmeta --extern diff=/opt/crater/target/debug/deps/libdiff-a75d72d0cbcce46d.rmeta --extern globset=/opt/crater/target/debug/deps/libglobset-c126dbac9707a4ee.rmeta --extern fnv=/opt/crater/target/debug/deps/libfnv-a7d5a31f99643f9e.rmeta --extern glob=/opt/crater/target/debug/deps/libglob-e555775cd600deb6.rmeta --extern ignore=/opt/crater/target/debug/deps/libignore-68a803916e596cb3.rmeta --extern lazy_static=/opt/crater/target/debug/deps/liblazy_static-f6661ce05b1a192e.rmeta --extern log=/opt/crater/target/debug/deps/liblog-38cbd9643fe9d76a.rmeta --extern memchr=/opt/crater/target/debug/deps/libmemchr-5ed780e43d828691.rmeta --extern nix=/opt/crater/target/debug/deps/libnix-402076595dc24836.rmeta --extern num_cpus=/opt/crater/target/debug/deps/libnum_cpus-8df8225a6e95effa.rmeta --extern regex=/opt/crater/target/debug/deps/libregex-d60291e122c0c5f8.rmeta --extern same_file=/opt/crater/target/debug/deps/libsame_file-81d3b0bfb9f6f902.rmeta --extern signal_hook=/opt/crater/target/debug/deps/libsignal_hook-ac99347e38098594.rmeta --extern tempdir=/opt/crater/target/debug/deps/libtempdir-b7c422eca6136c8f.rmeta --extern tempfile=/opt/crater/target/debug/deps/libtempfile-f705f2a537f36ec3.rmeta --cap-lints=forbid` (signal: 9, SIGKILL: kill) [INFO] running `"docker" "inspect" "a7d9a6d97e595ddb13bdafd14e34879a0e4232ba45d35bc0927e72b5e98ac731"` [INFO] running `"docker" "rm" "-f" "a7d9a6d97e595ddb13bdafd14e34879a0e4232ba45d35bc0927e72b5e98ac731"` [INFO] [stdout] a7d9a6d97e595ddb13bdafd14e34879a0e4232ba45d35bc0927e72b5e98ac731