[INFO] updating cached repository https://github.com/changlinli/rust-blackjack
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8ad085298b5c843c5bf47bcacd2edd8ecc2dc816
[INFO] testing changlinli/rust-blackjack against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchanglinli%2Frust-blackjack" "work/builds/worker-6/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/changlinli/rust-blackjack on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/changlinli/rust-blackjack
[INFO] finished tweaking git repo https://github.com/changlinli/rust-blackjack
[INFO] tweaked toml for git repo https://github.com/changlinli/rust-blackjack written to work/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/changlinli/rust-blackjack already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] e85c5fa20bf67a96443338c53553e1f601407426a4f7f1b272130be9a962432d
[INFO] running `"docker" "start" "-a" "e85c5fa20bf67a96443338c53553e1f601407426a4f7f1b272130be9a962432d"`
[INFO] [stderr]    Compiling rust-blackjack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `action`
[INFO] [stderr]   --> src/main.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |     let action = parse_action(&raw_action);
[INFO] [stderr]    |         ^^^^^^ help: consider prefixing with an underscore: `_action`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `card`
[INFO] [stderr]   --> src/main.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let card = rand::thread_rng().gen_range(1, 101);
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_card`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `"docker" "inspect" "e85c5fa20bf67a96443338c53553e1f601407426a4f7f1b272130be9a962432d"`
[INFO] running `"docker" "rm" "-f" "e85c5fa20bf67a96443338c53553e1f601407426a4f7f1b272130be9a962432d"`
[INFO] [stdout] e85c5fa20bf67a96443338c53553e1f601407426a4f7f1b272130be9a962432d
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 6ca88f408db2a837e6056346ae642f3d04d9c36895a24b9528b98fe8e57ebe6e
[INFO] running `"docker" "start" "-a" "6ca88f408db2a837e6056346ae642f3d04d9c36895a24b9528b98fe8e57ebe6e"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-blackjack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `action`
[INFO] [stderr]   --> src/main.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |     let action = parse_action(&raw_action);
[INFO] [stderr]    |         ^^^^^^ help: consider prefixing with an underscore: `_action`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `card`
[INFO] [stderr]   --> src/main.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let card = rand::thread_rng().gen_range(1, 101);
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_card`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.53s
[INFO] running `"docker" "inspect" "6ca88f408db2a837e6056346ae642f3d04d9c36895a24b9528b98fe8e57ebe6e"`
[INFO] running `"docker" "rm" "-f" "6ca88f408db2a837e6056346ae642f3d04d9c36895a24b9528b98fe8e57ebe6e"`
[INFO] [stdout] 6ca88f408db2a837e6056346ae642f3d04d9c36895a24b9528b98fe8e57ebe6e
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 6f0ae9d46673499fa3baf3a7caf5c1c8f1a38890b73803f7df7c5b94720f0e7f
[INFO] running `"docker" "start" "-a" "6f0ae9d46673499fa3baf3a7caf5c1c8f1a38890b73803f7df7c5b94720f0e7f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_blackjack-b10eb18165bb2a06
[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" "6f0ae9d46673499fa3baf3a7caf5c1c8f1a38890b73803f7df7c5b94720f0e7f"`
[INFO] running `"docker" "rm" "-f" "6f0ae9d46673499fa3baf3a7caf5c1c8f1a38890b73803f7df7c5b94720f0e7f"`
[INFO] [stdout] 6f0ae9d46673499fa3baf3a7caf5c1c8f1a38890b73803f7df7c5b94720f0e7f