[INFO] cloning repository makos/rust-ls
[INFO] running `"git" "clone" "--bare" "git://github.com/makos/rust-ls.git" "work/cache/sources/gh/makos/rust-ls"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/makos/rust-ls'...
[INFO] running `"git" "clone" "work/cache/sources/gh/makos/rust-ls" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/makos/rust-ls"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/makos/rust-ls'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/makos/rust-ls" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/makos/rust-ls"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/makos/rust-ls'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d208dbb34473661147939858a3a29a3f7195ad62
[INFO] sha for GitHub repo makos/rust-ls: d208dbb34473661147939858a3a29a3f7195ad62
[INFO] validating manifest of makos/rust-ls on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of makos/rust-ls on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing makos/rust-ls
[INFO] finished frobbing makos/rust-ls
[INFO] frobbed toml for makos/rust-ls written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/makos/rust-ls/Cargo.toml
[INFO] started frobbing makos/rust-ls
[INFO] finished frobbing makos/rust-ls
[INFO] frobbed toml for makos/rust-ls written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/makos/rust-ls/Cargo.toml
[INFO] crate makos/rust-ls already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] testing makos/rust-ls against master#c8865d8e195813ade6b84434ac9f8850e7112d1a for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-1/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/makos/rust-ls:/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "build" "--frozen"`
[INFO] [stdout] 5349a45279cea5c865971bb598fa31d981744c6c852e9731f817974cfbc7f622
[INFO] running `"docker" "start" "-a" "5349a45279cea5c865971bb598fa31d981744c6c852e9731f817974cfbc7f622"`
[INFO] [stderr]    Compiling rls v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 59 |         let mut dirs: Vec<Result<DirEntry, io::Error>> = dirs.collect();
[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 0.78s
[INFO] running `"docker" "inspect" "5349a45279cea5c865971bb598fa31d981744c6c852e9731f817974cfbc7f622"`
[INFO] running `"docker" "rm" "-f" "5349a45279cea5c865971bb598fa31d981744c6c852e9731f817974cfbc7f622"`
[INFO] [stdout] 5349a45279cea5c865971bb598fa31d981744c6c852e9731f817974cfbc7f622
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-1/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/makos/rust-ls:/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 87caf020f93739f867e4d1b0b84a15dfb6a24fa155f7a4274bf188cc5f57d098
[INFO] running `"docker" "start" "-a" "87caf020f93739f867e4d1b0b84a15dfb6a24fa155f7a4274bf188cc5f57d098"`
[INFO] [stderr]    Compiling rls v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 59 |         let mut dirs: Vec<Result<DirEntry, io::Error>> = dirs.collect();
[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 0.75s
[INFO] running `"docker" "inspect" "87caf020f93739f867e4d1b0b84a15dfb6a24fa155f7a4274bf188cc5f57d098"`
[INFO] running `"docker" "rm" "-f" "87caf020f93739f867e4d1b0b84a15dfb6a24fa155f7a4274bf188cc5f57d098"`
[INFO] [stdout] 87caf020f93739f867e4d1b0b84a15dfb6a24fa155f7a4274bf188cc5f57d098
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-1/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/makos/rust-ls:/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen"`
[INFO] [stdout] ddc1c47ab93947df7ff9eeaefe1609626ca92fbe57d4955ff4402382f118ea7b
[INFO] running `"docker" "start" "-a" "ddc1c47ab93947df7ff9eeaefe1609626ca92fbe57d4955ff4402382f118ea7b"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rls-ce62e6a54d49fdd5
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "ddc1c47ab93947df7ff9eeaefe1609626ca92fbe57d4955ff4402382f118ea7b"`
[INFO] running `"docker" "rm" "-f" "ddc1c47ab93947df7ff9eeaefe1609626ca92fbe57d4955ff4402382f118ea7b"`
[INFO] [stdout] ddc1c47ab93947df7ff9eeaefe1609626ca92fbe57d4955ff4402382f118ea7b