[INFO] updating cached repository Vagelis-Prokopiou/rs_christmas-carol
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Vagelis-Prokopiou/rs_christmas-carol
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Vagelis-Prokopiou/rs_christmas-carol" "work/ex/beta-1.38-1/sources/1.37.0/gh/Vagelis-Prokopiou/rs_christmas-carol"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Vagelis-Prokopiou/rs_christmas-carol'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Vagelis-Prokopiou/rs_christmas-carol" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Vagelis-Prokopiou/rs_christmas-carol"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Vagelis-Prokopiou/rs_christmas-carol'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e2acaeb651935482b96cc20a6707d221d30b5885
[INFO] sha for GitHub repo Vagelis-Prokopiou/rs_christmas-carol: e2acaeb651935482b96cc20a6707d221d30b5885
[INFO] validating manifest of Vagelis-Prokopiou/rs_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 Vagelis-Prokopiou/rs_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 Vagelis-Prokopiou/rs_christmas-carol
[INFO] finished frobbing Vagelis-Prokopiou/rs_christmas-carol
[INFO] frobbed toml for Vagelis-Prokopiou/rs_christmas-carol written to work/ex/beta-1.38-1/sources/1.37.0/gh/Vagelis-Prokopiou/rs_christmas-carol/Cargo.toml
[INFO] started frobbing Vagelis-Prokopiou/rs_christmas-carol
[INFO] finished frobbing Vagelis-Prokopiou/rs_christmas-carol
[INFO] frobbed toml for Vagelis-Prokopiou/rs_christmas-carol written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Vagelis-Prokopiou/rs_christmas-carol/Cargo.toml
[INFO] crate Vagelis-Prokopiou/rs_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 Vagelis-Prokopiou/rs_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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Vagelis-Prokopiou/rs_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] e13b24ba088218a0daf67a8353056ca924d742dafb184930714474d32e249bdc
[INFO] running `"docker" "start" "-a" "e13b24ba088218a0daf67a8353056ca924d742dafb184930714474d32e249bdc"`
[INFO] [stderr]    Compiling rust_christmas_carol v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `"docker" "inspect" "e13b24ba088218a0daf67a8353056ca924d742dafb184930714474d32e249bdc"`
[INFO] running `"docker" "rm" "-f" "e13b24ba088218a0daf67a8353056ca924d742dafb184930714474d32e249bdc"`
[INFO] [stdout] e13b24ba088218a0daf67a8353056ca924d742dafb184930714474d32e249bdc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Vagelis-Prokopiou/rs_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] 101518d661c153ab02839abf5bb5d40a282e5a3f5c55b2e35ea24172defc07ed
[INFO] running `"docker" "start" "-a" "101518d661c153ab02839abf5bb5d40a282e5a3f5c55b2e35ea24172defc07ed"`
[INFO] [stderr]    Compiling rust_christmas_carol v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `"docker" "inspect" "101518d661c153ab02839abf5bb5d40a282e5a3f5c55b2e35ea24172defc07ed"`
[INFO] running `"docker" "rm" "-f" "101518d661c153ab02839abf5bb5d40a282e5a3f5c55b2e35ea24172defc07ed"`
[INFO] [stdout] 101518d661c153ab02839abf5bb5d40a282e5a3f5c55b2e35ea24172defc07ed
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Vagelis-Prokopiou/rs_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] b6efa252065330e611d25feefdf33aa9cb71009ca486493d6b13b12b2e48bb5f
[INFO] running `"docker" "start" "-a" "b6efa252065330e611d25feefdf33aa9cb71009ca486493d6b13b12b2e48bb5f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_christmas_carol-ec3075f111a6af7e
[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" "b6efa252065330e611d25feefdf33aa9cb71009ca486493d6b13b12b2e48bb5f"`
[INFO] running `"docker" "rm" "-f" "b6efa252065330e611d25feefdf33aa9cb71009ca486493d6b13b12b2e48bb5f"`
[INFO] [stdout] b6efa252065330e611d25feefdf33aa9cb71009ca486493d6b13b12b2e48bb5f