[INFO] updating cached repository nick-hill/day2_rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nick-hill/day2_rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nick-hill/day2_rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/nick-hill/day2_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/nick-hill/day2_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nick-hill/day2_rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nick-hill/day2_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nick-hill/day2_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c6bd68900cedf363587eaefe4f611ae2b310ca3e
[INFO] sha for GitHub repo nick-hill/day2_rust: c6bd68900cedf363587eaefe4f611ae2b310ca3e
[INFO] validating manifest of nick-hill/day2_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 nick-hill/day2_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 nick-hill/day2_rust
[INFO] finished frobbing nick-hill/day2_rust
[INFO] frobbed toml for nick-hill/day2_rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/nick-hill/day2_rust/Cargo.toml
[INFO] started frobbing nick-hill/day2_rust
[INFO] finished frobbing nick-hill/day2_rust
[INFO] frobbed toml for nick-hill/day2_rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nick-hill/day2_rust/Cargo.toml
[INFO] crate nick-hill/day2_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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing nick-hill/day2_rust against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nick-hill/day2_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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] a6dc8c441920898446d4a8632ed053284f89895165fe7a14e70012f3f9cfac8f
[INFO] running `"docker" "start" "-a" "a6dc8c441920898446d4a8632ed053284f89895165fe7a14e70012f3f9cfac8f"`
[INFO] [stderr]    Compiling text_io v0.1.7
[INFO] [stderr]    Compiling day2_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `"docker" "inspect" "a6dc8c441920898446d4a8632ed053284f89895165fe7a14e70012f3f9cfac8f"`
[INFO] running `"docker" "rm" "-f" "a6dc8c441920898446d4a8632ed053284f89895165fe7a14e70012f3f9cfac8f"`
[INFO] [stdout] a6dc8c441920898446d4a8632ed053284f89895165fe7a14e70012f3f9cfac8f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nick-hill/day2_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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] d0d4d705c2eda35b4eee6f4ccb3cb001ea11ce64716697e3e93ba4eb4905a99f
[INFO] running `"docker" "start" "-a" "d0d4d705c2eda35b4eee6f4ccb3cb001ea11ce64716697e3e93ba4eb4905a99f"`
[INFO] [stderr]    Compiling day2_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `"docker" "inspect" "d0d4d705c2eda35b4eee6f4ccb3cb001ea11ce64716697e3e93ba4eb4905a99f"`
[INFO] running `"docker" "rm" "-f" "d0d4d705c2eda35b4eee6f4ccb3cb001ea11ce64716697e3e93ba4eb4905a99f"`
[INFO] [stdout] d0d4d705c2eda35b4eee6f4ccb3cb001ea11ce64716697e3e93ba4eb4905a99f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nick-hill/day2_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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] e0b1a418ce702158b54bda897856c4e5e70a78e965afc4a3ab4a35943ef7f49e
[INFO] running `"docker" "start" "-a" "e0b1a418ce702158b54bda897856c4e5e70a78e965afc4a3ab4a35943ef7f49e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/day2_rust-6e4e2ce21c8ac928
[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" "e0b1a418ce702158b54bda897856c4e5e70a78e965afc4a3ab4a35943ef7f49e"`
[INFO] running `"docker" "rm" "-f" "e0b1a418ce702158b54bda897856c4e5e70a78e965afc4a3ab4a35943ef7f49e"`
[INFO] [stdout] e0b1a418ce702158b54bda897856c4e5e70a78e965afc4a3ab4a35943ef7f49e