[INFO] updating cached repository amgoodfellow/minigrep
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/amgoodfellow/minigrep
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/amgoodfellow/minigrep" "work/ex/beta-1.37-6/sources/1.36.0/gh/amgoodfellow/minigrep"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/amgoodfellow/minigrep'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/amgoodfellow/minigrep" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/amgoodfellow/minigrep"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/amgoodfellow/minigrep'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8bcedf247f1e8cdc6dd13c9ea6a68909b1e04d96
[INFO] sha for GitHub repo amgoodfellow/minigrep: 8bcedf247f1e8cdc6dd13c9ea6a68909b1e04d96
[INFO] validating manifest of amgoodfellow/minigrep 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 amgoodfellow/minigrep 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 amgoodfellow/minigrep
[INFO] finished frobbing amgoodfellow/minigrep
[INFO] frobbed toml for amgoodfellow/minigrep written to work/ex/beta-1.37-6/sources/1.36.0/gh/amgoodfellow/minigrep/Cargo.toml
[INFO] started frobbing amgoodfellow/minigrep
[INFO] finished frobbing amgoodfellow/minigrep
[INFO] frobbed toml for amgoodfellow/minigrep written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/amgoodfellow/minigrep/Cargo.toml
[INFO] crate amgoodfellow/minigrep already has a lockfile, it will not be regenerated
[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 amgoodfellow/minigrep against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/amgoodfellow/minigrep:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 06dd59fdf3b107ec6aaf989bfe1686fb08dbdcd3d52a21e44fed556ee7e5a71f
[INFO] running `"docker" "start" "-a" "06dd59fdf3b107ec6aaf989bfe1686fb08dbdcd3d52a21e44fed556ee7e5a71f"`
[INFO] [stderr]    Compiling colored v1.6.0
[INFO] [stderr]    Compiling minigrep v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.55s
[INFO] running `"docker" "inspect" "06dd59fdf3b107ec6aaf989bfe1686fb08dbdcd3d52a21e44fed556ee7e5a71f"`
[INFO] running `"docker" "rm" "-f" "06dd59fdf3b107ec6aaf989bfe1686fb08dbdcd3d52a21e44fed556ee7e5a71f"`
[INFO] [stdout] 06dd59fdf3b107ec6aaf989bfe1686fb08dbdcd3d52a21e44fed556ee7e5a71f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/amgoodfellow/minigrep:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] eb986bb5de8b75289427043c751f80c54180029ed26eef48efb5d9f7526d1d1d
[INFO] running `"docker" "start" "-a" "eb986bb5de8b75289427043c751f80c54180029ed26eef48efb5d9f7526d1d1d"`
[INFO] [stderr]    Compiling minigrep v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0277]: can't compare `&str` with `(usize, &str)`
[INFO] [stderr]   --> src/lib.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |         assert_eq!(vec!["safe, fast, productive."], search(query, contents));
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no implementation for `&str == (usize, &str)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::cmp::PartialEq<(usize, &str)>` is not implemented for `&str`
[INFO] [stderr]    = note: required because of the requirements on the impl of `std::cmp::PartialEq<std::vec::Vec<(usize, &str)>>` for `std::vec::Vec<&str>`
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: Could not compile `minigrep`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "eb986bb5de8b75289427043c751f80c54180029ed26eef48efb5d9f7526d1d1d"`
[INFO] running `"docker" "rm" "-f" "eb986bb5de8b75289427043c751f80c54180029ed26eef48efb5d9f7526d1d1d"`
[INFO] [stdout] eb986bb5de8b75289427043c751f80c54180029ed26eef48efb5d9f7526d1d1d