[INFO] cloning repository https://github.com/n-krueger/rpi-ledmatrix-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/n-krueger/rpi-ledmatrix-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fn-krueger%2Frpi-ledmatrix-rs"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fn-krueger%2Frpi-ledmatrix-rs'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 54454842c50ba35afee77cf85b9760b8d468124a
[INFO] testing n-krueger/rpi-ledmatrix-rs against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fn-krueger%2Frpi-ledmatrix-rs" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/n-krueger/rpi-ledmatrix-rs on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/n-krueger/rpi-ledmatrix-rs
[INFO] finished tweaking git repo https://github.com/n-krueger/rpi-ledmatrix-rs
[INFO] tweaked toml for git repo https://github.com/n-krueger/rpi-ledmatrix-rs written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/n-krueger/rpi-ledmatrix-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"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=warn" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e20bd12f1bc98b263380b55132c1066173e2254c176987c89a581c87d1974df4
[INFO] running `"docker" "start" "-a" "e20bd12f1bc98b263380b55132c1066173e2254c176987c89a581c87d1974df4"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]    Compiling nix v0.11.1
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling backtrace v0.3.37
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]    Compiling gpio-cdev v0.2.0
[INFO] [stderr]    Compiling rpi-ledmatrix-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::process`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::process;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.12s
[INFO] running `"docker" "inspect" "e20bd12f1bc98b263380b55132c1066173e2254c176987c89a581c87d1974df4"`
[INFO] running `"docker" "rm" "-f" "e20bd12f1bc98b263380b55132c1066173e2254c176987c89a581c87d1974df4"`
[INFO] [stdout] e20bd12f1bc98b263380b55132c1066173e2254c176987c89a581c87d1974df4
[INFO] running `"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=warn" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6953ba467e7be0d7129c6b892472221e7ea0179b2c1bc665a5a02bfc6c2f0c67
[INFO] running `"docker" "start" "-a" "6953ba467e7be0d7129c6b892472221e7ea0179b2c1bc665a5a02bfc6c2f0c67"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling rpi-ledmatrix-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::process`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::process;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `"docker" "inspect" "6953ba467e7be0d7129c6b892472221e7ea0179b2c1bc665a5a02bfc6c2f0c67"`
[INFO] running `"docker" "rm" "-f" "6953ba467e7be0d7129c6b892472221e7ea0179b2c1bc665a5a02bfc6c2f0c67"`
[INFO] [stdout] 6953ba467e7be0d7129c6b892472221e7ea0179b2c1bc665a5a02bfc6c2f0c67
[INFO] running `"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=warn" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a03d4707d20e76a763f9896aa55dc1c9738140cdb4c1a7dce4e3cf4fe74996c8
[INFO] running `"docker" "start" "-a" "a03d4707d20e76a763f9896aa55dc1c9738140cdb4c1a7dce4e3cf4fe74996c8"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused import: `std::process`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::process;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rpi_ledmatrix_rs-450467c4758ab2f4
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "a03d4707d20e76a763f9896aa55dc1c9738140cdb4c1a7dce4e3cf4fe74996c8"`
[INFO] running `"docker" "rm" "-f" "a03d4707d20e76a763f9896aa55dc1c9738140cdb4c1a7dce4e3cf4fe74996c8"`
[INFO] [stdout] a03d4707d20e76a763f9896aa55dc1c9738140cdb4c1a7dce4e3cf4fe74996c8