[INFO] cloning repository https://github.com/leonardkulms/minigrep
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/leonardkulms/minigrep" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleonardkulms%2Fminigrep", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleonardkulms%2Fminigrep'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] babf52ce66b61212a4412a83b840653862f899c7
[INFO] testing leonardkulms/minigrep against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleonardkulms%2Fminigrep" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/leonardkulms/minigrep on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/leonardkulms/minigrep
[INFO] finished tweaking git repo https://github.com/leonardkulms/minigrep
[INFO] tweaked toml for git repo https://github.com/leonardkulms/minigrep written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/leonardkulms/minigrep already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 398337ba75753ff670ff902b22ba4d607cb27ea73de0ae91a3daebeaa4789b5c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "398337ba75753ff670ff902b22ba4d607cb27ea73de0ae91a3daebeaa4789b5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "398337ba75753ff670ff902b22ba4d607cb27ea73de0ae91a3daebeaa4789b5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "398337ba75753ff670ff902b22ba4d607cb27ea73de0ae91a3daebeaa4789b5c", kill_on_drop: false }`
[INFO] [stdout] 398337ba75753ff670ff902b22ba4d607cb27ea73de0ae91a3daebeaa4789b5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f14d5509e5c444fa34fb22efa48e08cab292b6781340d910fc68d506bdda8126
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f14d5509e5c444fa34fb22efa48e08cab292b6781340d910fc68d506bdda8126", kill_on_drop: false }`
[INFO] [stderr]    Compiling minigrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: expected a `FnMut<(char,)>` closure, found `String`
[INFO] [stdout]   --> src/lib.rs:16:53
[INFO] [stdout]    |
[INFO] [stdout] 16 |         .filter(|line| line.to_lowercase().contains(query))
[INFO] [stdout]    |                                                     ^^^^^
[INFO] [stdout]    |                                                     |
[INFO] [stdout]    |                                                     expected an implementor of trait `Pattern<'_>`
[INFO] [stdout]    |                                                     help: consider borrowing here: `&query`
[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] 
[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 `minigrep`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "f14d5509e5c444fa34fb22efa48e08cab292b6781340d910fc68d506bdda8126", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f14d5509e5c444fa34fb22efa48e08cab292b6781340d910fc68d506bdda8126", kill_on_drop: false }`
[INFO] [stdout] f14d5509e5c444fa34fb22efa48e08cab292b6781340d910fc68d506bdda8126