[INFO] cloning repository https://github.com/denzyldick/mgrep
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/denzyldick/mgrep" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdenzyldick%2Fmgrep", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdenzyldick%2Fmgrep'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 66128224c3bccfbba4d74272621b7dced8ca55c4
[INFO] testing denzyldick/mgrep against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdenzyldick%2Fmgrep" "/workspace/builds/worker-59/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-59/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/denzyldick/mgrep on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/denzyldick/mgrep
[INFO] finished tweaking git repo https://github.com/denzyldick/mgrep
[INFO] tweaked toml for git repo https://github.com/denzyldick/mgrep written to /workspace/builds/worker-59/source/Cargo.toml
[INFO] crate git repo https://github.com/denzyldick/mgrep already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5236bf68b9d926dcda45503ea6321022cf04e638f4a1da91f0cd87bc1f3bfab4
[INFO] running `Command { std: "docker" "start" "-a" "5236bf68b9d926dcda45503ea6321022cf04e638f4a1da91f0cd87bc1f3bfab4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5236bf68b9d926dcda45503ea6321022cf04e638f4a1da91f0cd87bc1f3bfab4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5236bf68b9d926dcda45503ea6321022cf04e638f4a1da91f0cd87bc1f3bfab4", kill_on_drop: false }`
[INFO] [stdout] 5236bf68b9d926dcda45503ea6321022cf04e638f4a1da91f0cd87bc1f3bfab4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b808e61b1b0b2c565556efc6a1f2b227b0d621af18f150ff9dffc9ef72c765da
[INFO] running `Command { std: "docker" "start" "-a" "b808e61b1b0b2c565556efc6a1f2b227b0d621af18f150ff9dffc9ef72c765da", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling mgrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: expected a `FnMut<(char,)>` closure, found `String`
[INFO] [stdout]     --> src/lib.rs:78:53
[INFO] [stdout]      |
[INFO] [stdout] 78   |         .filter(|line| line.to_lowercase().contains(query.to_lowercase()))
[INFO] [stdout]      |                                            -------- ^^^^^^^^^^^^^^^^^^^^ expected an implementor of trait `Pattern<'_>`
[INFO] [stdout]      |                                            |
[INFO] [stdout]      |                                            required by a bound introduced by this call
[INFO] [stdout]      |
[INFO] [stdout]      = note: the trait bound `String: Pattern<'_>` is not satisfied
[INFO] [stdout]      = note: required because of the requirements on the impl of `Pattern<'_>` for `String`
[INFO] [stdout] note: required by a bound in `core::str::<impl str>::contains`
[INFO] [stdout] help: consider borrowing here
[INFO] [stdout]      |
[INFO] [stdout] 78   |         .filter(|line| line.to_lowercase().contains(&query.to_lowercase()))
[INFO] [stdout]      |                                                     +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mgrep` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "b808e61b1b0b2c565556efc6a1f2b227b0d621af18f150ff9dffc9ef72c765da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b808e61b1b0b2c565556efc6a1f2b227b0d621af18f150ff9dffc9ef72c765da", kill_on_drop: false }`
[INFO] [stdout] b808e61b1b0b2c565556efc6a1f2b227b0d621af18f150ff9dffc9ef72c765da