[INFO] cloning repository https://github.com/celsod/minigrep
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/celsod/minigrep" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcelsod%2Fminigrep", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcelsod%2Fminigrep'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7decfd63318ddccbc31fae463007f883491b4588
[INFO] checking celsod/minigrep against try#66388cc165a6c4ac98c074dc9f0281ff23528c55 for pr-150727
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcelsod%2Fminigrep" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/celsod/minigrep
[INFO] finished tweaking git repo https://github.com/celsod/minigrep
[INFO] tweaked toml for git repo https://github.com/celsod/minigrep written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/celsod/minigrep on toolchain 66388cc165a6c4ac98c074dc9f0281ff23528c55
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/celsod/minigrep already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 51432d3bb2104c110cfe4970bad065c2947bdd481cb46a27b6fd7fe98ce8ed15
[INFO] running `Command { std: "docker" "start" "-a" "51432d3bb2104c110cfe4970bad065c2947bdd481cb46a27b6fd7fe98ce8ed15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51432d3bb2104c110cfe4970bad065c2947bdd481cb46a27b6fd7fe98ce8ed15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51432d3bb2104c110cfe4970bad065c2947bdd481cb46a27b6fd7fe98ce8ed15", kill_on_drop: false }`
[INFO] [stdout] 51432d3bb2104c110cfe4970bad065c2947bdd481cb46a27b6fd7fe98ce8ed15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d0e00d6386e915003e14eb599f80c21beb36d1543d70499165a521309de7afc
[INFO] running `Command { std: "docker" "start" "-a" "7d0e00d6386e915003e14eb599f80c21beb36d1543d70499165a521309de7afc", kill_on_drop: false }`
[INFO] [stderr]     Checking minigrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: the trait bound `String: Pattern` is not satisfied
[INFO] [stdout]    --> src/lib.rs:132:65
[INFO] [stdout]     |
[INFO] [stdout] 132 |     contents.lines().filter(|line| line.to_lowercase().contains(query.to_lowercase())).collect()
[INFO] [stdout]     |                                                        -------- ^^^^^^^^^^^^^^^^^^^^ the trait `Pattern` is not implemented for `String`
[INFO] [stdout]     |                                                        |
[INFO] [stdout]     |                                                        required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = note: required for `String` to implement `Pattern`
[INFO] [stdout] note: required by a bound in `core::str::<impl str>::contains`
[INFO] [stdout]    --> /rustc/66388cc165a6c4ac98c074dc9f0281ff23528c55/library/core/src/str/mod.rs:1351:4
[INFO] [stdout] help: consider borrowing here
[INFO] [stdout]     |
[INFO] [stdout] 132 |     contents.lines().filter(|line| line.to_lowercase().contains(&query.to_lowercase())).collect()
[INFO] [stdout]     |                                                                 +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `String: Pattern` is not satisfied
[INFO] [stdout]    --> src/lib.rs:132:65
[INFO] [stdout]     |
[INFO] [stdout] 132 |     contents.lines().filter(|line| line.to_lowercase().contains(query.to_lowercase())).collect()
[INFO] [stdout]     |                                                        -------- ^^^^^^^^^^^^^^^^^^^^ the trait `Pattern` is not implemented for `String`
[INFO] [stdout]     |                                                        |
[INFO] [stdout]     |                                                        required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = note: required for `String` to implement `Pattern`
[INFO] [stdout] note: required by a bound in `core::str::<impl str>::contains`
[INFO] [stdout]    --> /rustc/66388cc165a6c4ac98c074dc9f0281ff23528c55/library/core/src/str/mod.rs:1351:4
[INFO] [stdout] help: consider borrowing here
[INFO] [stdout]     |
[INFO] [stdout] 132 |     contents.lines().filter(|line| line.to_lowercase().contains(&query.to_lowercase())).collect()
[INFO] [stdout]     |                                                                 +
[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` (lib test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `minigrep` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "7d0e00d6386e915003e14eb599f80c21beb36d1543d70499165a521309de7afc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d0e00d6386e915003e14eb599f80c21beb36d1543d70499165a521309de7afc", kill_on_drop: false }`
[INFO] [stdout] 7d0e00d6386e915003e14eb599f80c21beb36d1543d70499165a521309de7afc
