[INFO] cloning repository https://github.com/dais39/minigrep
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dais39/minigrep" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdais39%2Fminigrep"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdais39%2Fminigrep'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 75d9f83e10834bb78573927e54a9d4336e94ae46
[INFO] testing dais39/minigrep against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdais39%2Fminigrep" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dais39/minigrep on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/dais39/minigrep
[INFO] finished tweaking git repo https://github.com/dais39/minigrep
[INFO] tweaked toml for git repo https://github.com/dais39/minigrep written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/dais39/minigrep already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stdout] 270a3e1895b79e593aec36875a390d68804ee47e0a5977e7b518c2592293d6b6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "270a3e1895b79e593aec36875a390d68804ee47e0a5977e7b518c2592293d6b6"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling minigrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0277]: expected a `std::ops::FnMut<(char,)>` closure, found `std::string::String`
[INFO] [stderr]   --> src/lib.rs:36:53
[INFO] [stderr]    |
[INFO] [stderr] 36 |         .filter(|line| line.to_lowercase().contains(query))
[INFO] [stderr]    |                                                     ^^^^^
[INFO] [stderr]    |                                                     |
[INFO] [stderr]    |                                                     expected an implementor of trait `std::str::pattern::Pattern<'_>`
[INFO] [stderr]    |                                                     help: consider borrowing here: `&query`
[INFO] [stderr]    |
[INFO] [stderr]    = note: the trait bound `std::string::String: std::str::pattern::Pattern<'_>` is not satisfied
[INFO] [stderr]    = note: required because of the requirements on the impl of `std::str::pattern::Pattern<'_>` for `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 E0277`.
[INFO] [stderr] error: could not compile `minigrep`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "270a3e1895b79e593aec36875a390d68804ee47e0a5977e7b518c2592293d6b6"`
[INFO] running `"docker" "rm" "-f" "270a3e1895b79e593aec36875a390d68804ee47e0a5977e7b518c2592293d6b6"`
[INFO] [stdout] 270a3e1895b79e593aec36875a390d68804ee47e0a5977e7b518c2592293d6b6