[INFO] cloning repository https://github.com/kaaboaye/sudoku_solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kaaboaye/sudoku_solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkaaboaye%2Fsudoku_solver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkaaboaye%2Fsudoku_solver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9b11c64bbd5d068e7972a23a13c2c5756a95a657
[INFO] checking kaaboaye/sudoku_solver against master#c9228570668803e3e6402770d55f23a12c9ae686 for pr-79472
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkaaboaye%2Fsudoku_solver" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kaaboaye/sudoku_solver on toolchain c9228570668803e3e6402770d55f23a12c9ae686
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kaaboaye/sudoku_solver
[INFO] finished tweaking git repo https://github.com/kaaboaye/sudoku_solver
[INFO] tweaked toml for git repo https://github.com/kaaboaye/sudoku_solver written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/kaaboaye/sudoku_solver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+c9228570668803e3e6402770d55f23a12c9ae686" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a8773b71f76a49e82a7f5e825a493f3af54eb80f7bc96eadb8ab444fc2651650
[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" "a8773b71f76a49e82a7f5e825a493f3af54eb80f7bc96eadb8ab444fc2651650", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8773b71f76a49e82a7f5e825a493f3af54eb80f7bc96eadb8ab444fc2651650", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8773b71f76a49e82a7f5e825a493f3af54eb80f7bc96eadb8ab444fc2651650", kill_on_drop: false }`
[INFO] [stdout] a8773b71f76a49e82a7f5e825a493f3af54eb80f7bc96eadb8ab444fc2651650
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+c9228570668803e3e6402770d55f23a12c9ae686" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b6422bc658d2916ffcdc2b57b7a3caa789051d3cc293119daa9ffbfea884873
[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" "5b6422bc658d2916ffcdc2b57b7a3caa789051d3cc293119daa9ffbfea884873", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking num-integer v0.1.42
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking alga v0.9.3
[INFO] [stderr]     Checking nalgebra v0.20.0
[INFO] [stderr]     Checking sudoku_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.48s
[INFO] running `Command { std: "docker" "inspect" "5b6422bc658d2916ffcdc2b57b7a3caa789051d3cc293119daa9ffbfea884873", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b6422bc658d2916ffcdc2b57b7a3caa789051d3cc293119daa9ffbfea884873", kill_on_drop: false }`
[INFO] [stdout] 5b6422bc658d2916ffcdc2b57b7a3caa789051d3cc293119daa9ffbfea884873