[INFO] updating cached repository shiver/aoc
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/shiver/aoc
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/shiver/aoc" "work/ex/beta-1.38-1/sources/1.37.0/gh/shiver/aoc"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/shiver/aoc'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/shiver/aoc" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/shiver/aoc"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/shiver/aoc'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3bc6408e4fb72831c380c822321cb39b5487452b
[INFO] sha for GitHub repo shiver/aoc: 3bc6408e4fb72831c380c822321cb39b5487452b
[INFO] validating manifest of shiver/aoc 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 shiver/aoc 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 shiver/aoc
[INFO] finished frobbing shiver/aoc
[INFO] frobbed toml for shiver/aoc written to work/ex/beta-1.38-1/sources/1.37.0/gh/shiver/aoc/Cargo.toml
[INFO] started frobbing shiver/aoc
[INFO] finished frobbing shiver/aoc
[INFO] frobbed toml for shiver/aoc written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/shiver/aoc/Cargo.toml
[INFO] crate shiver/aoc 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 shiver/aoc 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/shiver/aoc:/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] 73c6e9279c4b8d928c87fcca6e143516da5dd4aceb731e83072bb195c9f2586c
[INFO] running `"docker" "start" "-a" "73c6e9279c4b8d928c87fcca6e143516da5dd4aceb731e83072bb195c9f2586c"`
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling aoc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/main.rs:9:47
[INFO] [stderr]   |
[INFO] [stderr] 9 | type Result<T> = ::std::result::Result<T, Box<Error>>;
[INFO] [stderr]   |                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.47s
[INFO] running `"docker" "inspect" "73c6e9279c4b8d928c87fcca6e143516da5dd4aceb731e83072bb195c9f2586c"`
[INFO] running `"docker" "rm" "-f" "73c6e9279c4b8d928c87fcca6e143516da5dd4aceb731e83072bb195c9f2586c"`
[INFO] [stdout] 73c6e9279c4b8d928c87fcca6e143516da5dd4aceb731e83072bb195c9f2586c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/shiver/aoc:/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] 56291e79f28fb1ffdd43daac5f6894a8b16f112b4c2f639c17926ca676ae8ffc
[INFO] running `"docker" "start" "-a" "56291e79f28fb1ffdd43daac5f6894a8b16f112b4c2f639c17926ca676ae8ffc"`
[INFO] [stderr]    Compiling aoc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/main.rs:9:47
[INFO] [stderr]   |
[INFO] [stderr] 9 | type Result<T> = ::std::result::Result<T, Box<Error>>;
[INFO] [stderr]   |                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.40s
[INFO] running `"docker" "inspect" "56291e79f28fb1ffdd43daac5f6894a8b16f112b4c2f639c17926ca676ae8ffc"`
[INFO] running `"docker" "rm" "-f" "56291e79f28fb1ffdd43daac5f6894a8b16f112b4c2f639c17926ca676ae8ffc"`
[INFO] [stdout] 56291e79f28fb1ffdd43daac5f6894a8b16f112b4c2f639c17926ca676ae8ffc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/shiver/aoc:/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] 385517c75e9a8a97ccd4d0b674453cbcaef3cb3582ffd15f2a2d9f306c6ffb6e
[INFO] running `"docker" "start" "-a" "385517c75e9a8a97ccd4d0b674453cbcaef3cb3582ffd15f2a2d9f306c6ffb6e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/aoc-2aea4fc2b7f7161a
[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" "385517c75e9a8a97ccd4d0b674453cbcaef3cb3582ffd15f2a2d9f306c6ffb6e"`
[INFO] running `"docker" "rm" "-f" "385517c75e9a8a97ccd4d0b674453cbcaef3cb3582ffd15f2a2d9f306c6ffb6e"`
[INFO] [stdout] 385517c75e9a8a97ccd4d0b674453cbcaef3cb3582ffd15f2a2d9f306c6ffb6e