[INFO] updating cached repository DdZ-Fred/rust_christmas_carol
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/DdZ-Fred/rust_christmas_carol
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/DdZ-Fred/rust_christmas_carol" "work/ex/beta-1.38-1/sources/1.37.0/gh/DdZ-Fred/rust_christmas_carol"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/DdZ-Fred/rust_christmas_carol'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/DdZ-Fred/rust_christmas_carol" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DdZ-Fred/rust_christmas_carol"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DdZ-Fred/rust_christmas_carol'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e53d34b0b3ee615a5e0f991375a4e830d5c6f0a7
[INFO] sha for GitHub repo DdZ-Fred/rust_christmas_carol: e53d34b0b3ee615a5e0f991375a4e830d5c6f0a7
[INFO] validating manifest of DdZ-Fred/rust_christmas_carol 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 DdZ-Fred/rust_christmas_carol 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 DdZ-Fred/rust_christmas_carol
[INFO] finished frobbing DdZ-Fred/rust_christmas_carol
[INFO] frobbed toml for DdZ-Fred/rust_christmas_carol written to work/ex/beta-1.38-1/sources/1.37.0/gh/DdZ-Fred/rust_christmas_carol/Cargo.toml
[INFO] started frobbing DdZ-Fred/rust_christmas_carol
[INFO] finished frobbing DdZ-Fred/rust_christmas_carol
[INFO] frobbed toml for DdZ-Fred/rust_christmas_carol written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DdZ-Fred/rust_christmas_carol/Cargo.toml
[INFO] crate DdZ-Fred/rust_christmas_carol 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 DdZ-Fred/rust_christmas_carol 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/DdZ-Fred/rust_christmas_carol:/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] 25c29d6d83d2b42bec02dc3a688dde27f6524750576b6ba98fcd357e42f1983d
[INFO] running `"docker" "start" "-a" "25c29d6d83d2b42bec02dc3a688dde27f6524750576b6ba98fcd357e42f1983d"`
[INFO] [stderr]    Compiling rust_christmas_carol v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `"docker" "inspect" "25c29d6d83d2b42bec02dc3a688dde27f6524750576b6ba98fcd357e42f1983d"`
[INFO] running `"docker" "rm" "-f" "25c29d6d83d2b42bec02dc3a688dde27f6524750576b6ba98fcd357e42f1983d"`
[INFO] [stdout] 25c29d6d83d2b42bec02dc3a688dde27f6524750576b6ba98fcd357e42f1983d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/DdZ-Fred/rust_christmas_carol:/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] 4ab7c8dfd2a4a2ff5aa47ff4d3e231bb85b33d64f1cbdc0c915ebe02a1a93293
[INFO] running `"docker" "start" "-a" "4ab7c8dfd2a4a2ff5aa47ff4d3e231bb85b33d64f1cbdc0c915ebe02a1a93293"`
[INFO] [stderr]    Compiling rust_christmas_carol v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `"docker" "inspect" "4ab7c8dfd2a4a2ff5aa47ff4d3e231bb85b33d64f1cbdc0c915ebe02a1a93293"`
[INFO] running `"docker" "rm" "-f" "4ab7c8dfd2a4a2ff5aa47ff4d3e231bb85b33d64f1cbdc0c915ebe02a1a93293"`
[INFO] [stdout] 4ab7c8dfd2a4a2ff5aa47ff4d3e231bb85b33d64f1cbdc0c915ebe02a1a93293
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/DdZ-Fred/rust_christmas_carol:/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] 8f28e51bc01a26f2eee214b64416d7ea58a8dc0ca8c61eec0e9cf87a4d986074
[INFO] running `"docker" "start" "-a" "8f28e51bc01a26f2eee214b64416d7ea58a8dc0ca8c61eec0e9cf87a4d986074"`
[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]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_christmas_carol-ec3075f111a6af7e
[INFO] running `"docker" "inspect" "8f28e51bc01a26f2eee214b64416d7ea58a8dc0ca8c61eec0e9cf87a4d986074"`
[INFO] running `"docker" "rm" "-f" "8f28e51bc01a26f2eee214b64416d7ea58a8dc0ca8c61eec0e9cf87a4d986074"`
[INFO] [stdout] 8f28e51bc01a26f2eee214b64416d7ea58a8dc0ca8c61eec0e9cf87a4d986074