[INFO] cloning repository https://github.com/drojokef/alaybey
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/drojokef/alaybey" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdrojokef%2Falaybey", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdrojokef%2Falaybey'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 288536e1dd6a65390713b8c006da227b3c9c5a1b
[INFO] checking drojokef/alaybey against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdrojokef%2Falaybey" "/workspace/builds/worker-51/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-51/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/drojokef/alaybey on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/drojokef/alaybey
[INFO] finished tweaking git repo https://github.com/drojokef/alaybey
[INFO] tweaked toml for git repo https://github.com/drojokef/alaybey written to /workspace/builds/worker-51/source/Cargo.toml
[INFO] crate git repo https://github.com/drojokef/alaybey already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f5bcbeb065d7d069fa2c2e5543c83502e9df029c745b073365030d1f1e47f86
[INFO] running `Command { std: "docker" "start" "-a" "4f5bcbeb065d7d069fa2c2e5543c83502e9df029c745b073365030d1f1e47f86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f5bcbeb065d7d069fa2c2e5543c83502e9df029c745b073365030d1f1e47f86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f5bcbeb065d7d069fa2c2e5543c83502e9df029c745b073365030d1f1e47f86", kill_on_drop: false }`
[INFO] [stdout] 4f5bcbeb065d7d069fa2c2e5543c83502e9df029c745b073365030d1f1e47f86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dac3aed3c00d96792c132ac44bbec59791a4b77199fc4eb66deefafeee33f3b5
[INFO] running `Command { std: "docker" "start" "-a" "dac3aed3c00d96792c132ac44bbec59791a4b77199fc4eb66deefafeee33f3b5", kill_on_drop: false }`
[INFO] [stderr]     Checking 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]     | |________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 18  |             let _ = &lexers[1..lexers.len() - 1]
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "dac3aed3c00d96792c132ac44bbec59791a4b77199fc4eb66deefafeee33f3b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dac3aed3c00d96792c132ac44bbec59791a4b77199fc4eb66deefafeee33f3b5", kill_on_drop: false }`
[INFO] [stdout] dac3aed3c00d96792c132ac44bbec59791a4b77199fc4eb66deefafeee33f3b5