[INFO] cloning repository https://github.com/mazurwiktor/rustgrepper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mazurwiktor/rustgrepper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmazurwiktor%2Frustgrepper", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmazurwiktor%2Frustgrepper'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 820b4335ee20c57726e7d46c9890a19cd4da6ce7
[INFO] checking mazurwiktor/rustgrepper against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmazurwiktor%2Frustgrepper" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mazurwiktor/rustgrepper on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mazurwiktor/rustgrepper
[INFO] finished tweaking git repo https://github.com/mazurwiktor/rustgrepper
[INFO] tweaked toml for git repo https://github.com/mazurwiktor/rustgrepper written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/mazurwiktor/rustgrepper already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 50d35f97ad9a03782c206dec7002cbeb5cfd0d91b3fcafecf1b4de880cb08a5b
[INFO] running `Command { std: "docker" "start" "-a" "50d35f97ad9a03782c206dec7002cbeb5cfd0d91b3fcafecf1b4de880cb08a5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50d35f97ad9a03782c206dec7002cbeb5cfd0d91b3fcafecf1b4de880cb08a5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50d35f97ad9a03782c206dec7002cbeb5cfd0d91b3fcafecf1b4de880cb08a5b", kill_on_drop: false }`
[INFO] [stdout] 50d35f97ad9a03782c206dec7002cbeb5cfd0d91b3fcafecf1b4de880cb08a5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 12657fb9f1afcc29181baba262ff903c36c099849915aa515d4500704e15cf24
[INFO] running `Command { std: "docker" "start" "-a" "12657fb9f1afcc29181baba262ff903c36c099849915aa515d4500704e15cf24", kill_on_drop: false }`
[INFO] [stderr]    Compiling gcc v0.3.46
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]     Checking thread_local v0.3.3
[INFO] [stderr]     Checking regex v0.2.1
[INFO] [stderr]    Compiling ncurses v5.85.0
[INFO] [stderr]     Checking rustgrepper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/pager.rs:27:25
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn print(&mut self, &str);
[INFO] [stdout]    |                         ^^^^ help: try naming the parameter or explicitly ignoring it: `_: &str`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/pager.rs:29:29
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn mv_cursor(&mut self, (usize, usize));
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: (usize, usize)`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/pager.rs:32:35
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn clear_line_from(&mut self, (usize, usize));
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: (usize, usize)`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/pager.rs:27:25
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn print(&mut self, &str);
[INFO] [stdout]    |                         ^^^^ help: try naming the parameter or explicitly ignoring it: `_: &str`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/pager.rs:29:29
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn mv_cursor(&mut self, (usize, usize));
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: (usize, usize)`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/pager.rs:32:35
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn clear_line_from(&mut self, (usize, usize));
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: (usize, usize)`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.54s
[INFO] running `Command { std: "docker" "inspect" "12657fb9f1afcc29181baba262ff903c36c099849915aa515d4500704e15cf24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12657fb9f1afcc29181baba262ff903c36c099849915aa515d4500704e15cf24", kill_on_drop: false }`
[INFO] [stdout] 12657fb9f1afcc29181baba262ff903c36c099849915aa515d4500704e15cf24