[INFO] cloning repository yshuman1/rust-book-exercises
[INFO] running `"git" "clone" "--bare" "git://github.com/yshuman1/rust-book-exercises.git" "work/cache/sources/gh/yshuman1/rust-book-exercises"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/yshuman1/rust-book-exercises'...
[INFO] running `"git" "clone" "work/cache/sources/gh/yshuman1/rust-book-exercises" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/yshuman1/rust-book-exercises"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/yshuman1/rust-book-exercises'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/yshuman1/rust-book-exercises" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/yshuman1/rust-book-exercises"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/yshuman1/rust-book-exercises'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c6fbd66c89e51e1d87137833070bb8c0181c917c
[INFO] sha for GitHub repo yshuman1/rust-book-exercises: c6fbd66c89e51e1d87137833070bb8c0181c917c
[INFO] validating manifest of yshuman1/rust-book-exercises 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 yshuman1/rust-book-exercises 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 yshuman1/rust-book-exercises
[INFO] finished frobbing yshuman1/rust-book-exercises
[INFO] frobbed toml for yshuman1/rust-book-exercises written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/yshuman1/rust-book-exercises/Cargo.toml
[INFO] started frobbing yshuman1/rust-book-exercises
[INFO] finished frobbing yshuman1/rust-book-exercises
[INFO] frobbed toml for yshuman1/rust-book-exercises written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/yshuman1/rust-book-exercises/Cargo.toml
[INFO] crate yshuman1/rust-book-exercises 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing yshuman1/rust-book-exercises against master#c8865d8e195813ade6b84434ac9f8850e7112d1a for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-3/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/yshuman1/rust-book-exercises:/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] daa0fc03f002c6dea52da56629c2c998973bf06393816ed2050aacd0c78d7b02
[INFO] running `"docker" "start" "-a" "daa0fc03f002c6dea52da56629c2c998973bf06393816ed2050aacd0c78d7b02"`
[INFO] [stderr]    Compiling hello_cargo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `"docker" "inspect" "daa0fc03f002c6dea52da56629c2c998973bf06393816ed2050aacd0c78d7b02"`
[INFO] running `"docker" "rm" "-f" "daa0fc03f002c6dea52da56629c2c998973bf06393816ed2050aacd0c78d7b02"`
[INFO] [stdout] daa0fc03f002c6dea52da56629c2c998973bf06393816ed2050aacd0c78d7b02
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-3/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/yshuman1/rust-book-exercises:/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] b2f6606bf24097c952b115834c2761339900d72a12439ae700e9a18b5cbdc509
[INFO] running `"docker" "start" "-a" "b2f6606bf24097c952b115834c2761339900d72a12439ae700e9a18b5cbdc509"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]    Compiling hello_cargo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `"docker" "inspect" "b2f6606bf24097c952b115834c2761339900d72a12439ae700e9a18b5cbdc509"`
[INFO] running `"docker" "rm" "-f" "b2f6606bf24097c952b115834c2761339900d72a12439ae700e9a18b5cbdc509"`
[INFO] [stdout] b2f6606bf24097c952b115834c2761339900d72a12439ae700e9a18b5cbdc509
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-3/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/yshuman1/rust-book-exercises:/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] 2f0168bb651069e0fbba61ed2a873376a1792c89d0deffc3bc1eb9fa17a267a3
[INFO] running `"docker" "start" "-a" "2f0168bb651069e0fbba61ed2a873376a1792c89d0deffc3bc1eb9fa17a267a3"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hello_cargo-11f09dc93b6082e5
[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" "2f0168bb651069e0fbba61ed2a873376a1792c89d0deffc3bc1eb9fa17a267a3"`
[INFO] running `"docker" "rm" "-f" "2f0168bb651069e0fbba61ed2a873376a1792c89d0deffc3bc1eb9fa17a267a3"`
[INFO] [stdout] 2f0168bb651069e0fbba61ed2a873376a1792c89d0deffc3bc1eb9fa17a267a3