[INFO] cloning repository https://github.com/fhennig/pi_ir_remote
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fhennig/pi_ir_remote" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffhennig%2Fpi_ir_remote", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffhennig%2Fpi_ir_remote'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8c233931bfbcde29534419488db4767fd4e2306a
[INFO] checking fhennig/pi_ir_remote against master#2ad5292aea6328113b55968b4322528d48261316 for pr-80243
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffhennig%2Fpi_ir_remote" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fhennig/pi_ir_remote on toolchain 2ad5292aea6328113b55968b4322528d48261316
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fhennig/pi_ir_remote
[INFO] finished tweaking git repo https://github.com/fhennig/pi_ir_remote
[INFO] tweaked toml for git repo https://github.com/fhennig/pi_ir_remote written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/fhennig/pi_ir_remote already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a964da8ec42c901d85a9e29dd5d7b5f8b3ce72512e291d7d7bc5f3d3ab38d5b1
[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" "a964da8ec42c901d85a9e29dd5d7b5f8b3ce72512e291d7d7bc5f3d3ab38d5b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a964da8ec42c901d85a9e29dd5d7b5f8b3ce72512e291d7d7bc5f3d3ab38d5b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a964da8ec42c901d85a9e29dd5d7b5f8b3ce72512e291d7d7bc5f3d3ab38d5b1", kill_on_drop: false }`
[INFO] [stdout] a964da8ec42c901d85a9e29dd5d7b5f8b3ce72512e291d7d7bc5f3d3ab38d5b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1b6dcae71647a224e7855a6eead7ca952de094f7549df7a30cec50d24084cb00
[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" "1b6dcae71647a224e7855a6eead7ca952de094f7549df7a30cec50d24084cb00", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking stoppable_thread v0.2.1
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking gpio-cdev v0.4.0
[INFO] [stderr]     Checking pi_ir_remote v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `seq_to_string`
[INFO] [stdout]   --> src/pulse.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn seq_to_string(seq: &Vec<Pulse>) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `seq_to_string`
[INFO] [stdout]   --> src/pulse.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn seq_to_string(seq: &Vec<Pulse>) -> String {
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.58s
[INFO] running `Command { std: "docker" "inspect" "1b6dcae71647a224e7855a6eead7ca952de094f7549df7a30cec50d24084cb00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b6dcae71647a224e7855a6eead7ca952de094f7549df7a30cec50d24084cb00", kill_on_drop: false }`
[INFO] [stdout] 1b6dcae71647a224e7855a6eead7ca952de094f7549df7a30cec50d24084cb00