[INFO] fetching crate alaybey 0.0.1...
[INFO] testing alaybey-0.0.1 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate alaybey 0.0.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate alaybey 0.0.1 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 crates.io crate alaybey 0.0.1
[INFO] finished tweaking crates.io crate alaybey 0.0.1
[INFO] tweaked toml for crates.io crate alaybey 0.0.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate alaybey 0.0.1 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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "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] a47063fafa08130a25f84e3b967448f4385fc2a318526fb487a9a15f54cc9982
[INFO] running `Command { std: "docker" "start" "-a" "a47063fafa08130a25f84e3b967448f4385fc2a318526fb487a9a15f54cc9982", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a47063fafa08130a25f84e3b967448f4385fc2a318526fb487a9a15f54cc9982", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a47063fafa08130a25f84e3b967448f4385fc2a318526fb487a9a15f54cc9982", kill_on_drop: false }`
[INFO] [stdout] a47063fafa08130a25f84e3b967448f4385fc2a318526fb487a9a15f54cc9982
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", 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] 00438c8992dc0de5bca73824e58c07e3e2735826fd0cf0b6f1abb8c16486813d
[INFO] running `Command { std: "docker" "start" "-a" "00438c8992dc0de5bca73824e58c07e3e2735826fd0cf0b6f1abb8c16486813d", kill_on_drop: false }`
[INFO] [stderr]    Compiling alaybey v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib/compiler/mod.rs:18:13
[INFO] [stdout]     |
[INFO] [stdout] 18  | /             &lexers[1..lexers.len() - 1]
[INFO] [stdout] 19  | |                 .iter()
[INFO] [stdout] 20  | |                 .filter(|val| {
[INFO] [stdout] 21  | |                     let semi_colon = &val
[INFO] [stdout] ...   |
[INFO] [stdout] 135 | |                 })
[INFO] [stdout] 136 | |                 .count();
[INFO] [stdout]     | |________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` 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 2.26s
[INFO] running `Command { std: "docker" "inspect" "00438c8992dc0de5bca73824e58c07e3e2735826fd0cf0b6f1abb8c16486813d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00438c8992dc0de5bca73824e58c07e3e2735826fd0cf0b6f1abb8c16486813d", kill_on_drop: false }`
[INFO] [stdout] 00438c8992dc0de5bca73824e58c07e3e2735826fd0cf0b6f1abb8c16486813d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", 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] 2410fc6b53e9fc3ec17a045d52baa375cb695f55ed91996cd046e18e3a94276c
[INFO] running `Command { std: "docker" "start" "-a" "2410fc6b53e9fc3ec17a045d52baa375cb695f55ed91996cd046e18e3a94276c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] running `Command { std: "docker" "inspect" "2410fc6b53e9fc3ec17a045d52baa375cb695f55ed91996cd046e18e3a94276c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2410fc6b53e9fc3ec17a045d52baa375cb695f55ed91996cd046e18e3a94276c", kill_on_drop: false }`
[INFO] [stdout] 2410fc6b53e9fc3ec17a045d52baa375cb695f55ed91996cd046e18e3a94276c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", 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] 4df1d41dd51a7bf6c7a85e97f5819d2a15a2cb03c29c7e3cc936c7c9a2c549f5
[INFO] running `Command { std: "docker" "start" "-a" "4df1d41dd51a7bf6c7a85e97f5819d2a15a2cb03c29c7e3cc936c7c9a2c549f5", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] running `Command { std: "docker" "inspect" "4df1d41dd51a7bf6c7a85e97f5819d2a15a2cb03c29c7e3cc936c7c9a2c549f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4df1d41dd51a7bf6c7a85e97f5819d2a15a2cb03c29c7e3cc936c7c9a2c549f5", kill_on_drop: false }`
[INFO] [stdout] 4df1d41dd51a7bf6c7a85e97f5819d2a15a2cb03c29c7e3cc936c7c9a2c549f5