[INFO] updating cached repository tlafebre/christmas_carol
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tlafebre/christmas_carol
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tlafebre/christmas_carol" "work/ex/beta-1.38-1/sources/1.37.0/gh/tlafebre/christmas_carol"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/tlafebre/christmas_carol'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tlafebre/christmas_carol" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tlafebre/christmas_carol"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tlafebre/christmas_carol'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] be320688a767095838e9c15f751dcb803c4e639d
[INFO] sha for GitHub repo tlafebre/christmas_carol: be320688a767095838e9c15f751dcb803c4e639d
[INFO] validating manifest of tlafebre/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 tlafebre/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 tlafebre/christmas_carol
[INFO] finished frobbing tlafebre/christmas_carol
[INFO] frobbed toml for tlafebre/christmas_carol written to work/ex/beta-1.38-1/sources/1.37.0/gh/tlafebre/christmas_carol/Cargo.toml
[INFO] started frobbing tlafebre/christmas_carol
[INFO] finished frobbing tlafebre/christmas_carol
[INFO] frobbed toml for tlafebre/christmas_carol written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tlafebre/christmas_carol/Cargo.toml
[INFO] crate tlafebre/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 tlafebre/christmas_carol 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-0/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/tlafebre/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 4b466cd72466d0c67b54fca9c1a43b28849031283dfa525e7623ee961e1f849b
[INFO] running `"docker" "start" "-a" "4b466cd72466d0c67b54fca9c1a43b28849031283dfa525e7623ee961e1f849b"`
[INFO] [stderr]    Compiling christmas_carol v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `"docker" "inspect" "4b466cd72466d0c67b54fca9c1a43b28849031283dfa525e7623ee961e1f849b"`
[INFO] running `"docker" "rm" "-f" "4b466cd72466d0c67b54fca9c1a43b28849031283dfa525e7623ee961e1f849b"`
[INFO] [stdout] 4b466cd72466d0c67b54fca9c1a43b28849031283dfa525e7623ee961e1f849b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/tlafebre/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 390d213e171d4a8193aad1b0c703e1159d70f5b06f20564fb01ed55a9cd40bc5
[INFO] running `"docker" "start" "-a" "390d213e171d4a8193aad1b0c703e1159d70f5b06f20564fb01ed55a9cd40bc5"`
[INFO] [stderr]    Compiling christmas_carol v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `"docker" "inspect" "390d213e171d4a8193aad1b0c703e1159d70f5b06f20564fb01ed55a9cd40bc5"`
[INFO] running `"docker" "rm" "-f" "390d213e171d4a8193aad1b0c703e1159d70f5b06f20564fb01ed55a9cd40bc5"`
[INFO] [stdout] 390d213e171d4a8193aad1b0c703e1159d70f5b06f20564fb01ed55a9cd40bc5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/tlafebre/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] c3603c3a7e420c36736f65514ff758c1f81425d3a03f89da60d2bc358ccbf52a
[INFO] running `"docker" "start" "-a" "c3603c3a7e420c36736f65514ff758c1f81425d3a03f89da60d2bc358ccbf52a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/christmas_carol-1f5111d4dc4ec61e
[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" "c3603c3a7e420c36736f65514ff758c1f81425d3a03f89da60d2bc358ccbf52a"`
[INFO] running `"docker" "rm" "-f" "c3603c3a7e420c36736f65514ff758c1f81425d3a03f89da60d2bc358ccbf52a"`
[INFO] [stdout] c3603c3a7e420c36736f65514ff758c1f81425d3a03f89da60d2bc358ccbf52a