[INFO] updating cached repository travisboss/christmas_carol
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/travisboss/christmas_carol
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/travisboss/christmas_carol" "work/ex/beta-1.38-1/sources/1.37.0/gh/travisboss/christmas_carol"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/travisboss/christmas_carol'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/travisboss/christmas_carol" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/travisboss/christmas_carol"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/travisboss/christmas_carol'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 365ff1bce6d6d5e3fbf443ec6b6c4ae1e6d379bf
[INFO] sha for GitHub repo travisboss/christmas_carol: 365ff1bce6d6d5e3fbf443ec6b6c4ae1e6d379bf
[INFO] validating manifest of travisboss/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 travisboss/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 travisboss/christmas_carol
[INFO] finished frobbing travisboss/christmas_carol
[INFO] frobbed toml for travisboss/christmas_carol written to work/ex/beta-1.38-1/sources/1.37.0/gh/travisboss/christmas_carol/Cargo.toml
[INFO] started frobbing travisboss/christmas_carol
[INFO] finished frobbing travisboss/christmas_carol
[INFO] frobbed toml for travisboss/christmas_carol written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/travisboss/christmas_carol/Cargo.toml
[INFO] crate travisboss/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 travisboss/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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/travisboss/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] 24d9836c474c6baf6b08ddcf6da1b95589207ba827b84ce08c1527caadbe4876
[INFO] running `"docker" "start" "-a" "24d9836c474c6baf6b08ddcf6da1b95589207ba827b84ce08c1527caadbe4876"`
[INFO] [stderr]    Compiling christmas_carol v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `"docker" "inspect" "24d9836c474c6baf6b08ddcf6da1b95589207ba827b84ce08c1527caadbe4876"`
[INFO] running `"docker" "rm" "-f" "24d9836c474c6baf6b08ddcf6da1b95589207ba827b84ce08c1527caadbe4876"`
[INFO] [stdout] 24d9836c474c6baf6b08ddcf6da1b95589207ba827b84ce08c1527caadbe4876
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/travisboss/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] 8acb854dc4df2366b186728a0743b198d6e6ac8cd65e2143b642eddadd8127e7
[INFO] running `"docker" "start" "-a" "8acb854dc4df2366b186728a0743b198d6e6ac8cd65e2143b642eddadd8127e7"`
[INFO] [stderr]    Compiling christmas_carol v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `"docker" "inspect" "8acb854dc4df2366b186728a0743b198d6e6ac8cd65e2143b642eddadd8127e7"`
[INFO] running `"docker" "rm" "-f" "8acb854dc4df2366b186728a0743b198d6e6ac8cd65e2143b642eddadd8127e7"`
[INFO] [stdout] 8acb854dc4df2366b186728a0743b198d6e6ac8cd65e2143b642eddadd8127e7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/travisboss/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] d9dcd3f5bda53d5b2b5a0ccfa3d4ca6891df593e9f004a967760aeb280d9354d
[INFO] running `"docker" "start" "-a" "d9dcd3f5bda53d5b2b5a0ccfa3d4ca6891df593e9f004a967760aeb280d9354d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/christmas_carol-d3d5c574690381d4
[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" "d9dcd3f5bda53d5b2b5a0ccfa3d4ca6891df593e9f004a967760aeb280d9354d"`
[INFO] running `"docker" "rm" "-f" "d9dcd3f5bda53d5b2b5a0ccfa3d4ca6891df593e9f004a967760aeb280d9354d"`
[INFO] [stdout] d9dcd3f5bda53d5b2b5a0ccfa3d4ca6891df593e9f004a967760aeb280d9354d