[INFO] cloning repository https://github.com/DrEverr/Closure_and_HashMap
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DrEverr/Closure_and_HashMap" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDrEverr%2FClosure_and_HashMap", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDrEverr%2FClosure_and_HashMap'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 821d66ab61b81286affbd4161a17a03cfc41ca6f
[INFO] checking DrEverr/Closure_and_HashMap against try#7b3565da729099dbe807466fcd118fb2815986e0 for pr-81789
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDrEverr%2FClosure_and_HashMap" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DrEverr/Closure_and_HashMap on toolchain 7b3565da729099dbe807466fcd118fb2815986e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DrEverr/Closure_and_HashMap
[INFO] finished tweaking git repo https://github.com/DrEverr/Closure_and_HashMap
[INFO] tweaked toml for git repo https://github.com/DrEverr/Closure_and_HashMap written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/DrEverr/Closure_and_HashMap already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 466eb6ba7a5edcc3ef7a88016ed311117104f5e91295133671aaf1bf0cb4a1c5
[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" "466eb6ba7a5edcc3ef7a88016ed311117104f5e91295133671aaf1bf0cb4a1c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "466eb6ba7a5edcc3ef7a88016ed311117104f5e91295133671aaf1bf0cb4a1c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "466eb6ba7a5edcc3ef7a88016ed311117104f5e91295133671aaf1bf0cb4a1c5", kill_on_drop: false }`
[INFO] [stdout] 466eb6ba7a5edcc3ef7a88016ed311117104f5e91295133671aaf1bf0cb4a1c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+7b3565da729099dbe807466fcd118fb2815986e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9bd2c6eb2a17f04412924dbb8dc69d97e99eaca285d7c8bab2b1a517c398346
[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" "f9bd2c6eb2a17f04412924dbb8dc69d97e99eaca285d7c8bab2b1a517c398346", kill_on_drop: false }`
[INFO] [stderr]     Checking closure v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout]   --> src/main.rs:11:3
[INFO] [stdout]    |
[INFO] [stdout] 11 |   value: Option<u32>,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout]   --> src/main.rs:11:3
[INFO] [stdout]    |
[INFO] [stdout] 11 |   value: Option<u32>,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` 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 0.84s
[INFO] running `Command { std: "docker" "inspect" "f9bd2c6eb2a17f04412924dbb8dc69d97e99eaca285d7c8bab2b1a517c398346", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9bd2c6eb2a17f04412924dbb8dc69d97e99eaca285d7c8bab2b1a517c398346", kill_on_drop: false }`
[INFO] [stdout] f9bd2c6eb2a17f04412924dbb8dc69d97e99eaca285d7c8bab2b1a517c398346