[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#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffteychene%2Frust-error-playground" "/workspace/builds/worker-0/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/fteychene/rust-error-playground on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "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-0/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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 5199adda79120bf166707f02ebced0fff4ae6a76fd3a579f564a58a8755f39a6 [INFO] running `Command { std: "docker" "start" "-a" "5199adda79120bf166707f02ebced0fff4ae6a76fd3a579f564a58a8755f39a6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5199adda79120bf166707f02ebced0fff4ae6a76fd3a579f564a58a8755f39a6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5199adda79120bf166707f02ebced0fff4ae6a76fd3a579f564a58a8755f39a6", kill_on_drop: false }` [INFO] [stdout] 5199adda79120bf166707f02ebced0fff4ae6a76fd3a579f564a58a8755f39a6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1cb9561adef178b0fc8bb3bfc69ba3c4878133b30e6446e8a4e4ea111150e0aa [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" "1cb9561adef178b0fc8bb3bfc69ba3c4878133b30e6446e8a4e4ea111150e0aa", kill_on_drop: false }` [INFO] [stderr] Compiling regex-syntax v0.6.12 [INFO] [stderr] Compiling aho-corasick v0.7.6 [INFO] [stderr] Compiling regex v1.3.1 [INFO] [stderr] Compiling vanillacustom v0.1.0 (/opt/rustwide/workdir/vanillacustom) [INFO] [stderr] Compiling vanilla v0.1.0 (/opt/rustwide/workdir/vanilla) [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 dev [unoptimized + debuginfo] target(s) in 8.17s [INFO] running `Command { std: "docker" "inspect" "1cb9561adef178b0fc8bb3bfc69ba3c4878133b30e6446e8a4e4ea111150e0aa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1cb9561adef178b0fc8bb3bfc69ba3c4878133b30e6446e8a4e4ea111150e0aa", kill_on_drop: false }` [INFO] [stdout] 1cb9561adef178b0fc8bb3bfc69ba3c4878133b30e6446e8a4e4ea111150e0aa [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d7870da8f3598b225246dd65136440749c0ce82f068493350ea8e86bc99ed6a6 [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" "d7870da8f3598b225246dd65136440749c0ce82f068493350ea8e86bc99ed6a6", kill_on_drop: false }` [INFO] [stderr] Compiling vanillacustom v0.1.0 (/opt/rustwide/workdir/vanillacustom) [INFO] [stderr] Compiling vanilla v0.1.0 (/opt/rustwide/workdir/vanilla) [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 0.51s [INFO] running `Command { std: "docker" "inspect" "d7870da8f3598b225246dd65136440749c0ce82f068493350ea8e86bc99ed6a6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d7870da8f3598b225246dd65136440749c0ce82f068493350ea8e86bc99ed6a6", kill_on_drop: false }` [INFO] [stdout] d7870da8f3598b225246dd65136440749c0ce82f068493350ea8e86bc99ed6a6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 9c7f50f8f8c0e05f3cd6006a92b522c1451a5dd103513fab2da8c02153628473 [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" "9c7f50f8f8c0e05f3cd6006a92b522c1451a5dd103513fab2da8c02153628473", kill_on_drop: false }` [INFO] [stdout] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stdout] running 0 tests [INFO] [stderr] --> vanilla/src/main.rs:34:18 [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] 34 | fn remove_header(mut chapters: Vec) -> Result, Box> { [INFO] [stdout] [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 0.04s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/vanilla-9cdf892ff2d72d11) [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/vanillacustom-210c6b24a325bed4) [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" "9c7f50f8f8c0e05f3cd6006a92b522c1451a5dd103513fab2da8c02153628473", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9c7f50f8f8c0e05f3cd6006a92b522c1451a5dd103513fab2da8c02153628473", kill_on_drop: false }` [INFO] [stdout] 9c7f50f8f8c0e05f3cd6006a92b522c1451a5dd103513fab2da8c02153628473