[INFO] crate concur 0.1.4 is already in cache
[INFO] extracting crate concur 0.1.4 into work/ex/beta-1.38-1/sources/1.37.0/reg/concur/0.1.4
[INFO] extracting crate concur 0.1.4 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/concur/0.1.4
[INFO] validating manifest of concur-0.1.4 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 concur-0.1.4 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 concur-0.1.4
[INFO] finished frobbing concur-0.1.4
[INFO] frobbed toml for concur-0.1.4 written to work/ex/beta-1.38-1/sources/1.37.0/reg/concur/0.1.4/Cargo.toml
[INFO] started frobbing concur-0.1.4
[INFO] finished frobbing concur-0.1.4
[INFO] frobbed toml for concur-0.1.4 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/concur/0.1.4/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 concur-0.1.4 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/concur/0.1.4:/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] 23afb684168c103d7f8473559b24c79543464a136790daa51b44a23a02239ed5
[INFO] running `"docker" "start" "-a" "23afb684168c103d7f8473559b24c79543464a136790daa51b44a23a02239ed5"`
[INFO] [stderr]    Compiling docopt v0.7.0
[INFO] [stderr]    Compiling concur v0.1.4 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.55s
[INFO] running `"docker" "inspect" "23afb684168c103d7f8473559b24c79543464a136790daa51b44a23a02239ed5"`
[INFO] running `"docker" "rm" "-f" "23afb684168c103d7f8473559b24c79543464a136790daa51b44a23a02239ed5"`
[INFO] [stdout] 23afb684168c103d7f8473559b24c79543464a136790daa51b44a23a02239ed5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/concur/0.1.4:/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] 4c1ef25b2b43f376fd979be6197f2a3ff670c351783222f788df09b0e694aeba
[INFO] running `"docker" "start" "-a" "4c1ef25b2b43f376fd979be6197f2a3ff670c351783222f788df09b0e694aeba"`
[INFO] [stderr]    Compiling concur v0.1.4 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `"docker" "inspect" "4c1ef25b2b43f376fd979be6197f2a3ff670c351783222f788df09b0e694aeba"`
[INFO] running `"docker" "rm" "-f" "4c1ef25b2b43f376fd979be6197f2a3ff670c351783222f788df09b0e694aeba"`
[INFO] [stdout] 4c1ef25b2b43f376fd979be6197f2a3ff670c351783222f788df09b0e694aeba
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/concur/0.1.4:/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] 358296de8bb4b6a9e66cdef2e4d17df7c65f1fa775ac81ba96745d0f8425b8ae
[INFO] running `"docker" "start" "-a" "358296de8bb4b6a9e66cdef2e4d17df7c65f1fa775ac81ba96745d0f8425b8ae"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/concur-8f313e1d3c85b6c0
[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" "358296de8bb4b6a9e66cdef2e4d17df7c65f1fa775ac81ba96745d0f8425b8ae"`
[INFO] running `"docker" "rm" "-f" "358296de8bb4b6a9e66cdef2e4d17df7c65f1fa775ac81ba96745d0f8425b8ae"`
[INFO] [stdout] 358296de8bb4b6a9e66cdef2e4d17df7c65f1fa775ac81ba96745d0f8425b8ae