[INFO] cloning repository https://github.com/tyehle/led-matrix-driver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tyehle/led-matrix-driver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftyehle%2Fled-matrix-driver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftyehle%2Fled-matrix-driver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ba8fef7ed9842884f740b95cc34310f9ecf73e61
[INFO] checking tyehle/led-matrix-driver against master#6526e5c772f2da07db745c94ca6bb0a591a39ba4 for pr-80920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftyehle%2Fled-matrix-driver" "/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/tyehle/led-matrix-driver on toolchain 6526e5c772f2da07db745c94ca6bb0a591a39ba4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tyehle/led-matrix-driver
[INFO] finished tweaking git repo https://github.com/tyehle/led-matrix-driver
[INFO] tweaked toml for git repo https://github.com/tyehle/led-matrix-driver written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/tyehle/led-matrix-driver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "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] 7baf40bc0bfed1cdd9a5a7374c73611946ae94732c9db55d3e9a0ce60d6453f6
[INFO] running `Command { std: "docker" "start" "-a" "7baf40bc0bfed1cdd9a5a7374c73611946ae94732c9db55d3e9a0ce60d6453f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7baf40bc0bfed1cdd9a5a7374c73611946ae94732c9db55d3e9a0ce60d6453f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7baf40bc0bfed1cdd9a5a7374c73611946ae94732c9db55d3e9a0ce60d6453f6", kill_on_drop: false }`
[INFO] [stdout] 7baf40bc0bfed1cdd9a5a7374c73611946ae94732c9db55d3e9a0ce60d6453f6
[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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f8ceea918ba7f7aaeb52fc7fd73a05e06eb2ac7b65d87c1cc8df0ca6c8903fd0
[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" "f8ceea918ba7f7aaeb52fc7fd73a05e06eb2ac7b65d87c1cc8df0ca6c8903fd0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking nb v0.1.2
[INFO] [stderr]    Compiling heapless v0.5.4
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking embedded-hal v0.2.3
[INFO] [stderr]     Checking matrix-display v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking hash32 v0.1.1
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking as-slice v0.1.3
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.30s
[INFO] running `Command { std: "docker" "inspect" "f8ceea918ba7f7aaeb52fc7fd73a05e06eb2ac7b65d87c1cc8df0ca6c8903fd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8ceea918ba7f7aaeb52fc7fd73a05e06eb2ac7b65d87c1cc8df0ca6c8903fd0", kill_on_drop: false }`
[INFO] [stdout] f8ceea918ba7f7aaeb52fc7fd73a05e06eb2ac7b65d87c1cc8df0ca6c8903fd0