[INFO] crate nine-spec 0.0.0 is already in cache
[INFO] extracting crate nine-spec 0.0.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/nine-spec/0.0.0
[INFO] extracting crate nine-spec 0.0.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/nine-spec/0.0.0
[INFO] validating manifest of nine-spec-0.0.0 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 nine-spec-0.0.0 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 nine-spec-0.0.0
[INFO] finished frobbing nine-spec-0.0.0
[INFO] frobbed toml for nine-spec-0.0.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/nine-spec/0.0.0/Cargo.toml
[INFO] started frobbing nine-spec-0.0.0
[INFO] finished frobbing nine-spec-0.0.0
[INFO] frobbed toml for nine-spec-0.0.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/nine-spec/0.0.0/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing nine-spec-0.0.0 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/nine-spec/0.0.0:/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] 1676705ca3396a0e5b33a2b3b20c8a697892b0c69f8f7323d30c4a61e8dbfc0a
[INFO] running `"docker" "start" "-a" "1676705ca3396a0e5b33a2b3b20c8a697892b0c69f8f7323d30c4a61e8dbfc0a"`
[INFO] [stderr]    Compiling brev v0.1.14
[INFO] [stderr]    Compiling nine-spec v0.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.53s
[INFO] running `"docker" "inspect" "1676705ca3396a0e5b33a2b3b20c8a697892b0c69f8f7323d30c4a61e8dbfc0a"`
[INFO] running `"docker" "rm" "-f" "1676705ca3396a0e5b33a2b3b20c8a697892b0c69f8f7323d30c4a61e8dbfc0a"`
[INFO] [stdout] 1676705ca3396a0e5b33a2b3b20c8a697892b0c69f8f7323d30c4a61e8dbfc0a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/nine-spec/0.0.0:/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] 04b5761ce566d22ed3a698097ab81833c44275fed47194c227df9030cbb98ffc
[INFO] running `"docker" "start" "-a" "04b5761ce566d22ed3a698097ab81833c44275fed47194c227df9030cbb98ffc"`
[INFO] [stderr]    Compiling nine-spec v0.0.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/tests.rs:12:29
[INFO] [stderr]    |
[INFO] [stderr] 12 |     Err(error) => brev::die(error),
[INFO] [stderr]    |                             ^^^^^
[INFO] [stderr]    |                             |
[INFO] [stderr]    |                             expected reference, found struct `std::string::String`
[INFO] [stderr]    |                             help: consider borrowing here: `&error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected type `&dyn std::fmt::Display`
[INFO] [stderr]               found type `std::string::String`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: Could not compile `nine-spec`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "04b5761ce566d22ed3a698097ab81833c44275fed47194c227df9030cbb98ffc"`
[INFO] running `"docker" "rm" "-f" "04b5761ce566d22ed3a698097ab81833c44275fed47194c227df9030cbb98ffc"`
[INFO] [stdout] 04b5761ce566d22ed3a698097ab81833c44275fed47194c227df9030cbb98ffc