[INFO] updating cached repository https://github.com/ccutch/hairball
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0c807a0a2b5ec67d022822557e54ca33ef5a873c
[INFO] checking ccutch/hairball against master#1557fb031b272b4c5bfcc7de5df7eddc7b36a584 for pr-73166
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fccutch%2Fhairball" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ccutch/hairball on toolchain 1557fb031b272b4c5bfcc7de5df7eddc7b36a584
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ccutch/hairball
[INFO] finished tweaking git repo https://github.com/ccutch/hairball
[INFO] tweaked toml for git repo https://github.com/ccutch/hairball written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/ccutch/hairball already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "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] e770f38bfe16d63ce6474fda93d82839cc7e16d3cbc6146bf013212a2e433658
[INFO] running `Command { std: "docker" "start" "-a" "e770f38bfe16d63ce6474fda93d82839cc7e16d3cbc6146bf013212a2e433658", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e770f38bfe16d63ce6474fda93d82839cc7e16d3cbc6146bf013212a2e433658", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e770f38bfe16d63ce6474fda93d82839cc7e16d3cbc6146bf013212a2e433658", kill_on_drop: false }`
[INFO] [stdout] e770f38bfe16d63ce6474fda93d82839cc7e16d3cbc6146bf013212a2e433658
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "check" "--frozen" "--all" "--all-targets" "--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] 97940794a27cc3d5f5457b9936f4ca35dd2c5b6190badc935884f9e25cf309dc
[INFO] running `Command { std: "docker" "start" "-a" "97940794a27cc3d5f5457b9936f4ca35dd2c5b6190badc935884f9e25cf309dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v0.1.3
[INFO] [stderr]    Compiling nodrop v0.1.12
[INFO] [stderr]    Compiling lazy_static v1.0.1
[INFO] [stderr]    Compiling libc v0.2.42
[INFO] [stderr]    Compiling memoffset v0.2.1
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking untrusted v0.5.1
[INFO] [stderr]     Checking argparse v0.2.1
[INFO] [stderr]     Checking rpassword v2.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling arrayvec v0.4.7
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]    Compiling rayon v0.8.2
[INFO] [stderr]    Compiling ring v0.12.1
[INFO] [stderr]     Checking hairball v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `user`
[INFO] [stdout]   --> src/main.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 |     user: User,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `config`
[INFO] [stdout]   --> src/main.rs:93:5
[INFO] [stdout]    |
[INFO] [stdout] 93 |     config: Config,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `messages`
[INFO] [stdout]   --> src/main.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 94 |     messages: Vec<Message>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `user`
[INFO] [stdout]   --> src/main.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 |     user: User,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `config`
[INFO] [stdout]   --> src/main.rs:93:5
[INFO] [stdout]    |
[INFO] [stdout] 93 |     config: Config,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `messages`
[INFO] [stdout]   --> src/main.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 94 |     messages: Vec<Message>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.11s
[INFO] running `Command { std: "docker" "inspect" "97940794a27cc3d5f5457b9936f4ca35dd2c5b6190badc935884f9e25cf309dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97940794a27cc3d5f5457b9936f4ca35dd2c5b6190badc935884f9e25cf309dc", kill_on_drop: false }`
[INFO] [stdout] 97940794a27cc3d5f5457b9936f4ca35dd2c5b6190badc935884f9e25cf309dc