[INFO] cloning repository https://github.com/fteychene/rust-error-playground [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fteychene/rust-error-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffteychene%2Frust-error-playground", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffteychene%2Frust-error-playground'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] fa8ce5306515ca1d2c77d022d760ab7c00360f86 [INFO] testing fteychene/rust-error-playground against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffteychene%2Frust-error-playground" "/workspace/builds/worker-10/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/fteychene/rust-error-playground on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/fteychene/rust-error-playground [INFO] finished tweaking git repo https://github.com/fteychene/rust-error-playground [INFO] tweaked toml for git repo https://github.com/fteychene/rust-error-playground written to /workspace/builds/worker-10/source/Cargo.toml [INFO] crate git repo https://github.com/fteychene/rust-error-playground already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3ac64439f46623a8efa12651591789770d6b5503f8c4e1083c259db8e2f76f34 [INFO] running `Command { std: "docker" "start" "-a" "3ac64439f46623a8efa12651591789770d6b5503f8c4e1083c259db8e2f76f34", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3ac64439f46623a8efa12651591789770d6b5503f8c4e1083c259db8e2f76f34", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3ac64439f46623a8efa12651591789770d6b5503f8c4e1083c259db8e2f76f34", kill_on_drop: false }` [INFO] [stdout] 3ac64439f46623a8efa12651591789770d6b5503f8c4e1083c259db8e2f76f34 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 770971fee727e79acbdf4e24a0b1f613913eb5cec0f5b3edc6a7e4e6c6fb0244 [INFO] running `Command { std: "docker" "start" "-a" "770971fee727e79acbdf4e24a0b1f613913eb5cec0f5b3edc6a7e4e6c6fb0244", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling regex-syntax v0.6.12 [INFO] [stderr] Compiling thread_local v0.3.6 [INFO] [stderr] Compiling aho-corasick v0.7.6 [INFO] [stderr] Compiling regex v1.3.1 [INFO] [stderr] Compiling vanilla v0.1.0 (/opt/rustwide/workdir/vanilla) [INFO] [stderr] Compiling vanillacustom v0.1.0 (/opt/rustwide/workdir/vanillacustom) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> vanilla/src/main.rs:34:18 [INFO] [stdout] | [INFO] [stdout] 34 | fn remove_header(mut chapters: Vec) -> Result, Box> { [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 8.88s [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "770971fee727e79acbdf4e24a0b1f613913eb5cec0f5b3edc6a7e4e6c6fb0244", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "770971fee727e79acbdf4e24a0b1f613913eb5cec0f5b3edc6a7e4e6c6fb0244", kill_on_drop: false }` [INFO] [stdout] 770971fee727e79acbdf4e24a0b1f613913eb5cec0f5b3edc6a7e4e6c6fb0244 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] fb89be10bd344571ced654a29f0c4c722544d07670869c656702ab6611bb7588 [INFO] running `Command { std: "docker" "start" "-a" "fb89be10bd344571ced654a29f0c4c722544d07670869c656702ab6611bb7588", kill_on_drop: false }` [INFO] [stderr] Compiling vanilla v0.1.0 (/opt/rustwide/workdir/vanilla) [INFO] [stderr] Compiling vanillacustom v0.1.0 (/opt/rustwide/workdir/vanillacustom) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> vanilla/src/main.rs:34:18 [INFO] [stdout] | [INFO] [stdout] 34 | fn remove_header(mut chapters: Vec) -> Result, Box> { [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.76s [INFO] running `Command { std: "docker" "inspect" "fb89be10bd344571ced654a29f0c4c722544d07670869c656702ab6611bb7588", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fb89be10bd344571ced654a29f0c4c722544d07670869c656702ab6611bb7588", kill_on_drop: false }` [INFO] [stdout] fb89be10bd344571ced654a29f0c4c722544d07670869c656702ab6611bb7588 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] f405f578e89acbb3e01555d5efc3d3a16a4bf714cc79e392d13be9b6b9093d42 [INFO] running `Command { std: "docker" "start" "-a" "f405f578e89acbb3e01555d5efc3d3a16a4bf714cc79e392d13be9b6b9093d42", kill_on_drop: false }` [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> vanilla/src/main.rs:34:18 [INFO] [stderr] | [INFO] [stderr] 34 | fn remove_header(mut chapters: Vec) -> Result, Box> { [INFO] [stderr] | ----^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.09s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/vanilla-355d5cb90c28f489) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/vanillacustom-da2f9d8d18fc62e4) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "f405f578e89acbb3e01555d5efc3d3a16a4bf714cc79e392d13be9b6b9093d42", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f405f578e89acbb3e01555d5efc3d3a16a4bf714cc79e392d13be9b6b9093d42", kill_on_drop: false }` [INFO] [stdout] f405f578e89acbb3e01555d5efc3d3a16a4bf714cc79e392d13be9b6b9093d42