[INFO] updating cached repository matharp/learn-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/matharp/learn-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/matharp/learn-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/matharp/learn-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/matharp/learn-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/matharp/learn-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/matharp/learn-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/matharp/learn-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 449c766ac52ed2be6f1a2cff004237a95ebbc440
[INFO] sha for GitHub repo matharp/learn-rust: 449c766ac52ed2be6f1a2cff004237a95ebbc440
[INFO] validating manifest of matharp/learn-rust on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of matharp/learn-rust on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing matharp/learn-rust
[INFO] finished frobbing matharp/learn-rust
[INFO] frobbed toml for matharp/learn-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/matharp/learn-rust/Cargo.toml
[INFO] started frobbing matharp/learn-rust
[INFO] finished frobbing matharp/learn-rust
[INFO] frobbed toml for matharp/learn-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/matharp/learn-rust/Cargo.toml
[INFO] crate matharp/learn-rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing matharp/learn-rust against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/matharp/learn-rust:/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 835cba33e4b3602046f8338ff891c230b13fb986663d8ba7e4ba4cf2a348c07a
[INFO] running `"docker" "start" "-a" "835cba33e4b3602046f8338ff891c230b13fb986663d8ba7e4ba4cf2a348c07a"`
[INFO] [stderr]    Compiling hello-world v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `"docker" "inspect" "835cba33e4b3602046f8338ff891c230b13fb986663d8ba7e4ba4cf2a348c07a"`
[INFO] running `"docker" "rm" "-f" "835cba33e4b3602046f8338ff891c230b13fb986663d8ba7e4ba4cf2a348c07a"`
[INFO] [stdout] 835cba33e4b3602046f8338ff891c230b13fb986663d8ba7e4ba4cf2a348c07a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/matharp/learn-rust:/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=warn" "-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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 60be2784d09bcdf284b24b811537923b82d326099b23d3d05e41fb8a4db96949
[INFO] running `"docker" "start" "-a" "60be2784d09bcdf284b24b811537923b82d326099b23d3d05e41fb8a4db96949"`
[INFO] [stderr]    Compiling hello-world v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `"docker" "inspect" "60be2784d09bcdf284b24b811537923b82d326099b23d3d05e41fb8a4db96949"`
[INFO] running `"docker" "rm" "-f" "60be2784d09bcdf284b24b811537923b82d326099b23d3d05e41fb8a4db96949"`
[INFO] [stdout] 60be2784d09bcdf284b24b811537923b82d326099b23d3d05e41fb8a4db96949
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/matharp/learn-rust:/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=warn" "-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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 21a96e05d11bf55a1b250690451488e58eb125eaca6e981054d562f1c36c2c91
[INFO] running `"docker" "start" "-a" "21a96e05d11bf55a1b250690451488e58eb125eaca6e981054d562f1c36c2c91"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hello_world-232baf9273a9a82d
[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" "21a96e05d11bf55a1b250690451488e58eb125eaca6e981054d562f1c36c2c91"`
[INFO] running `"docker" "rm" "-f" "21a96e05d11bf55a1b250690451488e58eb125eaca6e981054d562f1c36c2c91"`
[INFO] [stdout] 21a96e05d11bf55a1b250690451488e58eb125eaca6e981054d562f1c36c2c91