[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 beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLuke-Draper%2Frust_coding_challenges" "/workspace/builds/worker-72/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-72/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Luke-Draper/rust_coding_challenges on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-72/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" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a78dbe087a0b0161c91525f96cbe384ccebf5fa06cee63d30411b6a3937f4c2
[INFO] running `Command { std: "docker" "start" "-a" "0a78dbe087a0b0161c91525f96cbe384ccebf5fa06cee63d30411b6a3937f4c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a78dbe087a0b0161c91525f96cbe384ccebf5fa06cee63d30411b6a3937f4c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a78dbe087a0b0161c91525f96cbe384ccebf5fa06cee63d30411b6a3937f4c2", kill_on_drop: false }`
[INFO] [stdout] 0a78dbe087a0b0161c91525f96cbe384ccebf5fa06cee63d30411b6a3937f4c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8620218d78fa3884d605127e17de1154b3424522724df2f2399ffc95dda2ed19
[INFO] running `Command { std: "docker" "start" "-a" "8620218d78fa3884d605127e17de1154b3424522724df2f2399ffc95dda2ed19", 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 1.42s
[INFO] running `Command { std: "docker" "inspect" "8620218d78fa3884d605127e17de1154b3424522724df2f2399ffc95dda2ed19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8620218d78fa3884d605127e17de1154b3424522724df2f2399ffc95dda2ed19", kill_on_drop: false }`
[INFO] [stdout] 8620218d78fa3884d605127e17de1154b3424522724df2f2399ffc95dda2ed19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a663386af0fac1c254a0fdae009d9426877fa90dec2a0b3af6851b946c432c44
[INFO] running `Command { std: "docker" "start" "-a" "a663386af0fac1c254a0fdae009d9426877fa90dec2a0b3af6851b946c432c44", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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 1.47s
[INFO] running `Command { std: "docker" "inspect" "a663386af0fac1c254a0fdae009d9426877fa90dec2a0b3af6851b946c432c44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a663386af0fac1c254a0fdae009d9426877fa90dec2a0b3af6851b946c432c44", kill_on_drop: false }`
[INFO] [stdout] a663386af0fac1c254a0fdae009d9426877fa90dec2a0b3af6851b946c432c44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3cd7ef8fdd6d31aae282a5e186567ae35a2583f56704dd9f4aa6ca149e28e971
[INFO] running `Command { std: "docker" "start" "-a" "3cd7ef8fdd6d31aae282a5e186567ae35a2583f56704dd9f4aa6ca149e28e971", 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: `rust_coding_challenges` (bin "rust_coding_challenges" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.36s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_coding_challenges-0fd16d30758a36c2)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test challenge_example::coding_challenge_test ... ok
[INFO] [stdout] test daily_challenge_1::coding_challenge_hash_test_1 ... ok
[INFO] [stdout] test daily_challenge_1::coding_challenge_hash_test_2 ... 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] test daily_challenge_1::coding_challenge_hash_test_5 ... ok
[INFO] [stdout] test daily_challenge_1::coding_challenge_test_1 ... ok
[INFO] [stdout] test daily_challenge_1::coding_challenge_test_2 ... 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_5 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3cd7ef8fdd6d31aae282a5e186567ae35a2583f56704dd9f4aa6ca149e28e971", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cd7ef8fdd6d31aae282a5e186567ae35a2583f56704dd9f4aa6ca149e28e971", kill_on_drop: false }`
[INFO] [stdout] 3cd7ef8fdd6d31aae282a5e186567ae35a2583f56704dd9f4aa6ca149e28e971