[INFO] fetching crate four-char-code 0.0.4...
[INFO] extracting crate four-char-code 0.0.4 into work/ex/beta-1.37-6/sources/1.36.0/reg/four-char-code/0.0.4
[INFO] extracting crate four-char-code 0.0.4 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/four-char-code/0.0.4
[INFO] validating manifest of four-char-code-0.0.4 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of four-char-code-0.0.4 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing four-char-code-0.0.4
[INFO] finished frobbing four-char-code-0.0.4
[INFO] frobbed toml for four-char-code-0.0.4 written to work/ex/beta-1.37-6/sources/1.36.0/reg/four-char-code/0.0.4/Cargo.toml
[INFO] started frobbing four-char-code-0.0.4
[INFO] finished frobbing four-char-code-0.0.4
[INFO] frobbed toml for four-char-code-0.0.4 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/four-char-code/0.0.4/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing four-char-code-0.0.4 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/four-char-code/0.0.4:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] c61bbc4630272d858c6c6a264f881e1ed2e0010036dbad0e4443cea286d40dea
[INFO] running `"docker" "start" "-a" "c61bbc4630272d858c6c6a264f881e1ed2e0010036dbad0e4443cea286d40dea"`
[INFO] [stderr]    Compiling four-char-code-macros-impl v0.0.2
[INFO] [stderr]    Compiling four-char-code v0.0.4 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.57s
[INFO] running `"docker" "inspect" "c61bbc4630272d858c6c6a264f881e1ed2e0010036dbad0e4443cea286d40dea"`
[INFO] running `"docker" "rm" "-f" "c61bbc4630272d858c6c6a264f881e1ed2e0010036dbad0e4443cea286d40dea"`
[INFO] [stdout] c61bbc4630272d858c6c6a264f881e1ed2e0010036dbad0e4443cea286d40dea
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/four-char-code/0.0.4:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] c83ee90236e21994949c89c9c682ec8b575a7e297ac8ffd97d215efc25f10ce2
[INFO] running `"docker" "start" "-a" "c83ee90236e21994949c89c9c682ec8b575a7e297ac8ffd97d215efc25f10ce2"`
[INFO] [stderr]    Compiling four-char-code v0.0.4 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `"docker" "inspect" "c83ee90236e21994949c89c9c682ec8b575a7e297ac8ffd97d215efc25f10ce2"`
[INFO] running `"docker" "rm" "-f" "c83ee90236e21994949c89c9c682ec8b575a7e297ac8ffd97d215efc25f10ce2"`
[INFO] [stdout] c83ee90236e21994949c89c9c682ec8b575a7e297ac8ffd97d215efc25f10ce2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/four-char-code/0.0.4:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 62a2c2712bfe4599c85ab6b58b61385dde3f1bf597c6e46e1c23a52c8b138e1c
[INFO] running `"docker" "start" "-a" "62a2c2712bfe4599c85ab6b58b61385dde3f1bf597c6e46e1c23a52c8b138e1c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/four_char_code-0206870bc659910f
[INFO] [stderr]    Doc-tests four-char-code
[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] [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" "62a2c2712bfe4599c85ab6b58b61385dde3f1bf597c6e46e1c23a52c8b138e1c"`
[INFO] running `"docker" "rm" "-f" "62a2c2712bfe4599c85ab6b58b61385dde3f1bf597c6e46e1c23a52c8b138e1c"`
[INFO] [stdout] 62a2c2712bfe4599c85ab6b58b61385dde3f1bf597c6e46e1c23a52c8b138e1c