[INFO] cloning repository https://github.com/steveklabnik/geekout2016
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/steveklabnik/geekout2016" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsteveklabnik%2Fgeekout2016", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsteveklabnik%2Fgeekout2016'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f68ed9e6e5e7c6accac9a7d606788f834f346d6f
[INFO] checking steveklabnik/geekout2016 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsteveklabnik%2Fgeekout2016" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/steveklabnik/geekout2016 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/steveklabnik/geekout2016
[INFO] finished tweaking git repo https://github.com/steveklabnik/geekout2016
[INFO] tweaked toml for git repo https://github.com/steveklabnik/geekout2016 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/steveklabnik/geekout2016 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 540db390f982f2b70f287a0fe1c7e2998f8650a9d14b95c5b45bb5f66be1b4c9
[INFO] running `Command { std: "docker" "start" "-a" "540db390f982f2b70f287a0fe1c7e2998f8650a9d14b95c5b45bb5f66be1b4c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "540db390f982f2b70f287a0fe1c7e2998f8650a9d14b95c5b45bb5f66be1b4c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "540db390f982f2b70f287a0fe1c7e2998f8650a9d14b95c5b45bb5f66be1b4c9", kill_on_drop: false }`
[INFO] [stdout] 540db390f982f2b70f287a0fe1c7e2998f8650a9d14b95c5b45bb5f66be1b4c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3f89a34b996513737477d8b64dcd012206f70d59297be3e594f10cc2a3162dc
[INFO] running `Command { std: "docker" "start" "-a" "f3f89a34b996513737477d8b64dcd012206f70d59297be3e594f10cc2a3162dc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.11
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.7
[INFO] [stderr]     Checking crossbeam v0.2.9
[INFO] [stderr]     Checking itertools v0.4.15
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking rand v0.3.14
[INFO] [stderr]     Checking num_cpus v0.2.12
[INFO] [stderr]     Checking time v0.1.35
[INFO] [stderr]     Checking deque v0.3.1
[INFO] [stderr]     Checking rayon v0.4.0
[INFO] [stderr]     Checking geekout v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> src/bin/01.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `xs`
[INFO] [stdout]  --> src/bin/01.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let xs = vec![1, 2, 3, 4, 5];
[INFO] [stdout]   |         ^^ help: if this is intentional, prefix it with an underscore: `_xs`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> src/bin/01.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `xs`
[INFO] [stdout]  --> src/bin/01.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let xs = vec![1, 2, 3, 4, 5];
[INFO] [stdout]   |         ^^ help: if this is intentional, prefix it with an underscore: `_xs`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.31s
[INFO] running `Command { std: "docker" "inspect" "f3f89a34b996513737477d8b64dcd012206f70d59297be3e594f10cc2a3162dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3f89a34b996513737477d8b64dcd012206f70d59297be3e594f10cc2a3162dc", kill_on_drop: false }`
[INFO] [stdout] f3f89a34b996513737477d8b64dcd012206f70d59297be3e594f10cc2a3162dc