[INFO] cloning repository phase/ler
[INFO] running `"git" "clone" "--bare" "git://github.com/phase/ler.git" "work/cache/sources/gh/phase/ler"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/phase/ler'...
[INFO] running `"git" "clone" "work/cache/sources/gh/phase/ler" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/phase/ler"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/phase/ler'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/phase/ler" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/phase/ler"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/phase/ler'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] acab76cd4973021373b2d73d33904dbe0eda3b28
[INFO] sha for GitHub repo phase/ler: acab76cd4973021373b2d73d33904dbe0eda3b28
[INFO] validating manifest of phase/ler 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 phase/ler 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 phase/ler
[INFO] finished frobbing phase/ler
[INFO] frobbed toml for phase/ler written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/phase/ler/Cargo.toml
[INFO] started frobbing phase/ler
[INFO] finished frobbing phase/ler
[INFO] frobbed toml for phase/ler written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/phase/ler/Cargo.toml
[INFO] crate phase/ler 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 phase/ler against master#c8865d8e195813ade6b84434ac9f8850e7112d1a for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-6/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/phase/ler:/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] 7a3ebb328cf08ca37ce8d2779c5bcccb9f0b0166d976aa34333448859373f6cf
[INFO] running `"docker" "start" "-a" "7a3ebb328cf08ca37ce8d2779c5bcccb9f0b0166d976aa34333448859373f6cf"`
[INFO] [stderr]    Compiling clap v2.13.0
[INFO] [stderr]    Compiling ler v0.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `matches`
[INFO] [stderr]  --> src/main.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let matches = App::new("ler")
[INFO] [stderr]   |         ^^^^^^^ help: consider prefixing with an underscore: `_matches`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.67s
[INFO] running `"docker" "inspect" "7a3ebb328cf08ca37ce8d2779c5bcccb9f0b0166d976aa34333448859373f6cf"`
[INFO] running `"docker" "rm" "-f" "7a3ebb328cf08ca37ce8d2779c5bcccb9f0b0166d976aa34333448859373f6cf"`
[INFO] [stdout] 7a3ebb328cf08ca37ce8d2779c5bcccb9f0b0166d976aa34333448859373f6cf
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-6/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/phase/ler:/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] 0cc51fbb5eb73eb52f078a900bb16b39de178548a922c6dea936875820f737c6
[INFO] running `"docker" "start" "-a" "0cc51fbb5eb73eb52f078a900bb16b39de178548a922c6dea936875820f737c6"`
[INFO] [stderr]    Compiling ler v0.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `matches`
[INFO] [stderr]  --> src/main.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let matches = App::new("ler")
[INFO] [stderr]   |         ^^^^^^^ help: consider prefixing with an underscore: `_matches`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `"docker" "inspect" "0cc51fbb5eb73eb52f078a900bb16b39de178548a922c6dea936875820f737c6"`
[INFO] running `"docker" "rm" "-f" "0cc51fbb5eb73eb52f078a900bb16b39de178548a922c6dea936875820f737c6"`
[INFO] [stdout] 0cc51fbb5eb73eb52f078a900bb16b39de178548a922c6dea936875820f737c6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-6/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/phase/ler:/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] 423e15a9a5432238671ac54f32742f8ac8213cd28f97c6b20a3923f720cbb9e6
[INFO] running `"docker" "start" "-a" "423e15a9a5432238671ac54f32742f8ac8213cd28f97c6b20a3923f720cbb9e6"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[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] [stderr]      Running /opt/crater/target/debug/deps/ler-389dbdd29f8ebe5a
[INFO] running `"docker" "inspect" "423e15a9a5432238671ac54f32742f8ac8213cd28f97c6b20a3923f720cbb9e6"`
[INFO] running `"docker" "rm" "-f" "423e15a9a5432238671ac54f32742f8ac8213cd28f97c6b20a3923f720cbb9e6"`
[INFO] [stdout] 423e15a9a5432238671ac54f32742f8ac8213cd28f97c6b20a3923f720cbb9e6