[INFO] updating cached repository shockham/contours
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/shockham/contours
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/shockham/contours" "work/ex/beta-1.38-1/sources/1.37.0/gh/shockham/contours"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/shockham/contours'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/shockham/contours" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/shockham/contours"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/shockham/contours'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5f018fab2d40557f855d57fc07d7e71e1fa8c3c9
[INFO] sha for GitHub repo shockham/contours: 5f018fab2d40557f855d57fc07d7e71e1fa8c3c9
[INFO] validating manifest of shockham/contours 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 shockham/contours 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 shockham/contours
[INFO] finished frobbing shockham/contours
[INFO] frobbed toml for shockham/contours written to work/ex/beta-1.38-1/sources/1.37.0/gh/shockham/contours/Cargo.toml
[INFO] started frobbing shockham/contours
[INFO] finished frobbing shockham/contours
[INFO] frobbed toml for shockham/contours written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/shockham/contours/Cargo.toml
[INFO] crate shockham/contours 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 shockham/contours 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/shockham/contours:/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] ab27a95a3a3c6445391ec8377f59c12ad9d0665c1508b0c3e0c67f8d6bea7e0e
[INFO] running `"docker" "start" "-a" "ab27a95a3a3c6445391ec8377f59c12ad9d0665c1508b0c3e0c67f8d6bea7e0e"`
[INFO] [stderr]    Compiling contours v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.99s
[INFO] running `"docker" "inspect" "ab27a95a3a3c6445391ec8377f59c12ad9d0665c1508b0c3e0c67f8d6bea7e0e"`
[INFO] running `"docker" "rm" "-f" "ab27a95a3a3c6445391ec8377f59c12ad9d0665c1508b0c3e0c67f8d6bea7e0e"`
[INFO] [stdout] ab27a95a3a3c6445391ec8377f59c12ad9d0665c1508b0c3e0c67f8d6bea7e0e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/shockham/contours:/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] 8555febb3e9bbaa39daf9d53b77682c46c2dc18f6b2e357364a54793b3660871
[INFO] running `"docker" "start" "-a" "8555febb3e9bbaa39daf9d53b77682c46c2dc18f6b2e357364a54793b3660871"`
[INFO] [stderr]    Compiling contours v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.02s
[INFO] running `"docker" "inspect" "8555febb3e9bbaa39daf9d53b77682c46c2dc18f6b2e357364a54793b3660871"`
[INFO] running `"docker" "rm" "-f" "8555febb3e9bbaa39daf9d53b77682c46c2dc18f6b2e357364a54793b3660871"`
[INFO] [stdout] 8555febb3e9bbaa39daf9d53b77682c46c2dc18f6b2e357364a54793b3660871
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/shockham/contours:/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] 4f92a119fc90c83ba340888f3bc43ce31dc985c78e5bd81500f71f64bdfc9a6e
[INFO] running `"docker" "start" "-a" "4f92a119fc90c83ba340888f3bc43ce31dc985c78e5bd81500f71f64bdfc9a6e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.22s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/contours-630c836b674a2fa1
[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" "4f92a119fc90c83ba340888f3bc43ce31dc985c78e5bd81500f71f64bdfc9a6e"`
[INFO] running `"docker" "rm" "-f" "4f92a119fc90c83ba340888f3bc43ce31dc985c78e5bd81500f71f64bdfc9a6e"`
[INFO] [stdout] 4f92a119fc90c83ba340888f3bc43ce31dc985c78e5bd81500f71f64bdfc9a6e