[INFO] crate four-char-code 0.0.4 is already in cache
[INFO] extracting crate four-char-code 0.0.4 into work/ex/beta-1.38-1/sources/1.37.0/reg/four-char-code/0.0.4
[INFO] extracting crate four-char-code 0.0.4 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/four-char-code/0.0.4
[INFO] validating manifest of four-char-code-0.0.4 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 four-char-code-0.0.4 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 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-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/reg/four-char-code/0.0.4/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 four-char-code-0.0.4 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] d896c429fb32391abc21fa8c7788731fbe5633a9b87ac438ecdab865ef560884
[INFO] running `"docker" "start" "-a" "d896c429fb32391abc21fa8c7788731fbe5633a9b87ac438ecdab865ef560884"`
[INFO] [stderr]    Compiling proc-macro2 v1.0.1
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v1.0.3
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling proc-macro-hack v0.5.9
[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 25.94s
[INFO] running `"docker" "inspect" "d896c429fb32391abc21fa8c7788731fbe5633a9b87ac438ecdab865ef560884"`
[INFO] running `"docker" "rm" "-f" "d896c429fb32391abc21fa8c7788731fbe5633a9b87ac438ecdab865ef560884"`
[INFO] [stdout] d896c429fb32391abc21fa8c7788731fbe5633a9b87ac438ecdab865ef560884
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 14629bbc6f3a5ae8cdbaf32cc914046f5c6c83954d4f6e9a2aa38c55c71b4a90
[INFO] running `"docker" "start" "-a" "14629bbc6f3a5ae8cdbaf32cc914046f5c6c83954d4f6e9a2aa38c55c71b4a90"`
[INFO] [stderr]    Compiling four-char-code v0.0.4 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `"docker" "inspect" "14629bbc6f3a5ae8cdbaf32cc914046f5c6c83954d4f6e9a2aa38c55c71b4a90"`
[INFO] running `"docker" "rm" "-f" "14629bbc6f3a5ae8cdbaf32cc914046f5c6c83954d4f6e9a2aa38c55c71b4a90"`
[INFO] [stdout] 14629bbc6f3a5ae8cdbaf32cc914046f5c6c83954d4f6e9a2aa38c55c71b4a90
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 536411b6ae13752ed57d9a82861de2d6194996e857f743bd8a758469ef5cd1dd
[INFO] running `"docker" "start" "-a" "536411b6ae13752ed57d9a82861de2d6194996e857f743bd8a758469ef5cd1dd"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/four_char_code-521e4031f575f4d3
[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] [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] running `"docker" "inspect" "536411b6ae13752ed57d9a82861de2d6194996e857f743bd8a758469ef5cd1dd"`
[INFO] running `"docker" "rm" "-f" "536411b6ae13752ed57d9a82861de2d6194996e857f743bd8a758469ef5cd1dd"`
[INFO] [stdout] 536411b6ae13752ed57d9a82861de2d6194996e857f743bd8a758469ef5cd1dd