[INFO] cloning repository https://github.com/Luke-Draper/rust_coding_challenges
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Luke-Draper/rust_coding_challenges" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLuke-Draper%2Frust_coding_challenges", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLuke-Draper%2Frust_coding_challenges'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e9427f8f60aec586083bc8d7bdcc5808b19abdc5
[INFO] testing Luke-Draper/rust_coding_challenges against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLuke-Draper%2Frust_coding_challenges" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Luke-Draper/rust_coding_challenges on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Luke-Draper/rust_coding_challenges
[INFO] finished tweaking git repo https://github.com/Luke-Draper/rust_coding_challenges
[INFO] tweaked toml for git repo https://github.com/Luke-Draper/rust_coding_challenges written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/Luke-Draper/rust_coding_challenges already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 58e5c75970829c5919aca1e17b5dec94d15474429759b16ff844f622a55685ea
[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" "58e5c75970829c5919aca1e17b5dec94d15474429759b16ff844f622a55685ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "58e5c75970829c5919aca1e17b5dec94d15474429759b16ff844f622a55685ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58e5c75970829c5919aca1e17b5dec94d15474429759b16ff844f622a55685ea", kill_on_drop: false }`
[INFO] [stdout] 58e5c75970829c5919aca1e17b5dec94d15474429759b16ff844f622a55685ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 385f02337b99d05a350e61e2ee43db268af36480ab2210699b3603c6a6bc2124
[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" "385f02337b99d05a350e61e2ee43db268af36480ab2210699b3603c6a6bc2124", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_coding_challenges v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused label
[INFO] [stdout]   --> src/daily_challenge_1.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 |             'inner: for j in (i + 1)..l.len() {
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_labels)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "385f02337b99d05a350e61e2ee43db268af36480ab2210699b3603c6a6bc2124", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "385f02337b99d05a350e61e2ee43db268af36480ab2210699b3603c6a6bc2124", kill_on_drop: false }`
[INFO] [stdout] 385f02337b99d05a350e61e2ee43db268af36480ab2210699b3603c6a6bc2124
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e0c8c387a64ea1cd09963630ddb76cdf974a1447023dd08a1813c89fc84706b
[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" "7e0c8c387a64ea1cd09963630ddb76cdf974a1447023dd08a1813c89fc84706b", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_coding_challenges v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused label
[INFO] [stdout]   --> src/daily_challenge_1.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 |             'inner: for j in (i + 1)..l.len() {
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_labels)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `Command { std: "docker" "inspect" "7e0c8c387a64ea1cd09963630ddb76cdf974a1447023dd08a1813c89fc84706b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e0c8c387a64ea1cd09963630ddb76cdf974a1447023dd08a1813c89fc84706b", kill_on_drop: false }`
[INFO] [stdout] 7e0c8c387a64ea1cd09963630ddb76cdf974a1447023dd08a1813c89fc84706b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", 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] d5c20a22c1e8df6a3a6d942e655bae2d3d1999e634d86b51f9036896fa487b6d
[INFO] running `Command { std: "docker" "start" "-a" "d5c20a22c1e8df6a3a6d942e655bae2d3d1999e634d86b51f9036896fa487b6d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused label
[INFO] [stderr]   --> src/daily_challenge_1.rs:20:4
[INFO] [stderr]    |
[INFO] [stderr] 20 |             'inner: for j in (i + 1)..l.len() {
[INFO] [stderr]    |             ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_labels)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_coding_challenges-88462a0660d37364
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test daily_challenge_1::coding_challenge_hash_test_1 ... ok
[INFO] [stdout] test challenge_example::coding_challenge_test ... ok
[INFO] [stdout] test daily_challenge_1::coding_challenge_test_3 ... ok
[INFO] [stdout] test daily_challenge_1::coding_challenge_test_4 ... ok
[INFO] [stdout] test daily_challenge_1::coding_challenge_test_1 ... ok
[INFO] [stdout] test daily_challenge_1::coding_challenge_test_5 ... ok
[INFO] [stdout] test daily_challenge_1::coding_challenge_hash_test_2 ... ok
[INFO] [stdout] test daily_challenge_1::coding_challenge_test_2 ... ok
[INFO] [stdout] test daily_challenge_1::coding_challenge_hash_test_5 ... ok
[INFO] [stdout] test daily_challenge_1::coding_challenge_hash_test_3 ... ok
[INFO] [stdout] test daily_challenge_1::coding_challenge_hash_test_4 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d5c20a22c1e8df6a3a6d942e655bae2d3d1999e634d86b51f9036896fa487b6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5c20a22c1e8df6a3a6d942e655bae2d3d1999e634d86b51f9036896fa487b6d", kill_on_drop: false }`
[INFO] [stdout] d5c20a22c1e8df6a3a6d942e655bae2d3d1999e634d86b51f9036896fa487b6d