[INFO] cloning repository https://github.com/tehroot/gpiorust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tehroot/gpiorust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftehroot%2Fgpiorust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftehroot%2Fgpiorust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] af12bc5352f80a7432aa0561f3da21f33f8fee12
[INFO] checking tehroot/gpiorust against master#50e1dc1536264ab71c0850f346b12309477f29f7 for pr-85073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftehroot%2Fgpiorust" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tehroot/gpiorust on toolchain 50e1dc1536264ab71c0850f346b12309477f29f7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tehroot/gpiorust
[INFO] finished tweaking git repo https://github.com/tehroot/gpiorust
[INFO] tweaked toml for git repo https://github.com/tehroot/gpiorust written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/tehroot/gpiorust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 69a07534c7dad15aa76922a68f5d91efb7ad9184e10a6861977cba6c31405994
[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" "69a07534c7dad15aa76922a68f5d91efb7ad9184e10a6861977cba6c31405994", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "69a07534c7dad15aa76922a68f5d91efb7ad9184e10a6861977cba6c31405994", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69a07534c7dad15aa76922a68f5d91efb7ad9184e10a6861977cba6c31405994", kill_on_drop: false }`
[INFO] [stdout] 69a07534c7dad15aa76922a68f5d91efb7ad9184e10a6861977cba6c31405994
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+50e1dc1536264ab71c0850f346b12309477f29f7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd6f1ac8f8c1d32d5f69d5dfbdbcff231446eb36cad308998d47b77fb561efeb
[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" "bd6f1ac8f8c1d32d5f69d5dfbdbcff231446eb36cad308998d47b77fb561efeb", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.36
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking num-traits v0.2.0
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]    Compiling nix v0.6.0
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking num-integer v0.1.36
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking num-iter v0.1.35
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking chrono v0.4.0
[INFO] [stderr]     Checking sysfs_gpio v0.5.1
[INFO] [stderr]     Checking test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/main.rs:61:26
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let mut flipper = false;;
[INFO] [stdout]    |                             ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/main.rs:26:19
[INFO] [stdout]    |
[INFO] [stdout] 26 |             if let Some(value) = poller.poll(1000)? {
[INFO] [stdout]    |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[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: unnecessary trailing semicolon
[INFO] [stdout]   --> src/main.rs:61:26
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let mut flipper = false;;
[INFO] [stdout]    |                             ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/main.rs:26:19
[INFO] [stdout]    |
[INFO] [stdout] 26 |             if let Some(value) = poller.poll(1000)? {
[INFO] [stdout]    |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[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 13.26s
[INFO] running `Command { std: "docker" "inspect" "bd6f1ac8f8c1d32d5f69d5dfbdbcff231446eb36cad308998d47b77fb561efeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd6f1ac8f8c1d32d5f69d5dfbdbcff231446eb36cad308998d47b77fb561efeb", kill_on_drop: false }`
[INFO] [stdout] bd6f1ac8f8c1d32d5f69d5dfbdbcff231446eb36cad308998d47b77fb561efeb