[INFO] cloning repository https://github.com/xabiercasado/rust_training
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xabiercasado/rust_training" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxabiercasado%2Frust_training", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxabiercasado%2Frust_training'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 81c785c090f01e131a0b8dc936dda267af05ab69
[INFO] testing xabiercasado/rust_training against 1.75.0 for beta-1.76-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxabiercasado%2Frust_training" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xabiercasado/rust_training on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/xabiercasado/rust_training
[INFO] finished tweaking git repo https://github.com/xabiercasado/rust_training
[INFO] tweaked toml for git repo https://github.com/xabiercasado/rust_training written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/xabiercasado/rust_training already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded leetcode_prelude v0.2.3
[INFO] [stderr]   Downloaded leetcode_test v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2fc0726e27043fa5f057fbee055c86b3ff9b9a4c0160a147e74ddbaa9db3dd0f
[INFO] running `Command { std: "docker" "start" "-a" "2fc0726e27043fa5f057fbee055c86b3ff9b9a4c0160a147e74ddbaa9db3dd0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2fc0726e27043fa5f057fbee055c86b3ff9b9a4c0160a147e74ddbaa9db3dd0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fc0726e27043fa5f057fbee055c86b3ff9b9a4c0160a147e74ddbaa9db3dd0f", kill_on_drop: false }`
[INFO] [stdout] 2fc0726e27043fa5f057fbee055c86b3ff9b9a4c0160a147e74ddbaa9db3dd0f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1620ea7d02070be1ea3ae96bb24bbec588ca7b034b0bb5ea161080fdadf86a8c
[INFO] running `Command { std: "docker" "start" "-a" "1620ea7d02070be1ea3ae96bb24bbec588ca7b034b0bb5ea161080fdadf86a8c", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.140
[INFO] [stderr]    Compiling serde_json v1.0.82
[INFO] [stderr]    Compiling itoa v1.0.2
[INFO] [stderr]    Compiling ryu v1.0.10
[INFO] [stderr]    Compiling leetcode_test v0.1.2
[INFO] [stderr]    Compiling leetcode_prelude v0.2.3
[INFO] [stderr]    Compiling rust_training v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `leetcode_prelude::vec_string`
[INFO] [stdout]  --> src/sprint1/exercise2_1.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use leetcode_prelude::vec_string;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `leetcode_prelude::vec_string`
[INFO] [stdout]  --> src/sprint1/exercise2_2.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use leetcode_prelude::vec_string;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.99s
[INFO] running `Command { std: "docker" "inspect" "1620ea7d02070be1ea3ae96bb24bbec588ca7b034b0bb5ea161080fdadf86a8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1620ea7d02070be1ea3ae96bb24bbec588ca7b034b0bb5ea161080fdadf86a8c", kill_on_drop: false }`
[INFO] [stdout] 1620ea7d02070be1ea3ae96bb24bbec588ca7b034b0bb5ea161080fdadf86a8c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 232658facbd3b8956215a509b8841f648a9d40a994eb9da875544a9f6d5a618a
[INFO] running `Command { std: "docker" "start" "-a" "232658facbd3b8956215a509b8841f648a9d40a994eb9da875544a9f6d5a618a", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_training v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "232658facbd3b8956215a509b8841f648a9d40a994eb9da875544a9f6d5a618a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "232658facbd3b8956215a509b8841f648a9d40a994eb9da875544a9f6d5a618a", kill_on_drop: false }`
[INFO] [stdout] 232658facbd3b8956215a509b8841f648a9d40a994eb9da875544a9f6d5a618a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0b00493b7294cae6312880bd9fc81f01fd0706052a856d65c1b08c2f604e8364
[INFO] running `Command { std: "docker" "start" "-a" "0b00493b7294cae6312880bd9fc81f01fd0706052a856d65c1b08c2f604e8364", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_training-bc69b43213606f86)
[INFO] [stdout] 
[INFO] [stdout] running 64 tests
[INFO] [stdout] test easy::exercise1_1::tests::example_one ... ok
[INFO] [stdout] test easy::exercise1_1::tests::example_three ... ok
[INFO] [stdout] test easy::exercise1_2::tests::example_one ... ok
[INFO] [stdout] test easy::exercise1_1::tests::example_two ... ok
[INFO] [stdout] test easy::exercise1_2::tests::example_three ... ok
[INFO] [stdout] test easy::exercise1_2::tests::example_two ... ok
[INFO] [stdout] test easy::exercise2_1::tests::example_four ... ok
[INFO] [stdout] test easy::exercise2_1::tests::example_one ... ok
[INFO] [stdout] test easy::exercise2_1::tests::example_three ... ok
[INFO] [stdout] test easy::exercise2_1::tests::example_two ... ok
[INFO] [stdout] test sprint1::exercise1_1::tests::example_five ... ok
[INFO] [stdout] test sprint1::exercise1_1::tests::example_four ... ok
[INFO] [stdout] test sprint1::exercise1_1::tests::example_one ... ok
[INFO] [stdout] test sprint1::exercise1_1::tests::example_three ... ok
[INFO] [stdout] test sprint1::exercise1_1::tests::example_two ... ok
[INFO] [stdout] test sprint1::exercise2_1::tests::example_one ... ok
[INFO] [stdout] test sprint1::exercise1_2::test ... ok
[INFO] [stdout] test sprint1::exercise2_1::tests::example_two ... ok
[INFO] [stdout] test sprint1::exercise2_2::tests::example_one ... ok
[INFO] [stdout] test sprint1::exercise2_2::tests::example_two ... ok
[INFO] [stdout] test sprint1::exercise3_1::tests::example_five ... ok
[INFO] [stdout] test sprint1::exercise3_1::tests::example_four ... ok
[INFO] [stdout] test sprint1::exercise3_1::tests::example_one ... ok
[INFO] [stdout] test sprint1::exercise3_1::tests::example_three ... ok
[INFO] [stdout] test sprint1::exercise3_1::tests::example_two ... ok
[INFO] [stdout] test sprint1::exercise3_2::tests::example_five ... ok
[INFO] [stdout] test sprint1::exercise3_2::tests::example_four ... ok
[INFO] [stdout] test sprint1::exercise3_2::tests::example_one ... ok
[INFO] [stdout] test sprint1::exercise3_2::tests::example_three ... ok
[INFO] [stdout] test sprint1::exercise3_2::tests::example_two ... ok
[INFO] [stdout] test sprint1::exercise4_1::tests::example_one ... ok
[INFO] [stdout] test sprint1::exercise4_1::tests::example_two ... ok
[INFO] [stdout] test sprint1::exercise5_1::tests::example_one ... ok
[INFO] [stdout] test sprint2::exercise1_1::tests::example_one ... ok
[INFO] [stdout] test sprint2::exercise1_1::tests::example_three ... ok
[INFO] [stdout] test sprint1::exercise5_1::tests::example_two ... ok
[INFO] [stdout] test sprint2::exercise1_2::tests::example_three ... ok
[INFO] [stdout] test sprint2::exercise1_2::tests::example_one ... ok
[INFO] [stdout] test sprint2::exercise2_1::tests::example_five ... ok
[INFO] [stdout] test sprint2::exercise2_1::tests::example_one ... ok
[INFO] [stdout] test sprint2::exercise2_1::tests::example_four ... ok
[INFO] [stdout] test sprint2::exercise1_1::tests::example_two ... ok
[INFO] [stdout] test sprint2::exercise1_2::tests::example_two ... ok
[INFO] [stdout] test sprint2::exercise2_1::tests::example_three ... ok
[INFO] [stdout] test sprint2::exercise2_1::tests::example_two ... ok
[INFO] [stdout] test sprint2::exercise2_2::tests::example_five ... ok
[INFO] [stdout] test sprint2::exercise2_2::tests::example_one ... ok
[INFO] [stdout] test sprint2::exercise2_2::tests::example_three ... ok
[INFO] [stdout] test sprint2::exercise2_2::tests::example_four ... ok
[INFO] [stdout] test sprint2::exercise3_1::tests::example_five ... ok
[INFO] [stdout] test sprint2::exercise3_1::tests::example_four ... ok
[INFO] [stdout] test sprint2::exercise2_2::tests::example_two ... ok
[INFO] [stdout] test sprint2::exercise3_1::tests::example_one ... ok
[INFO] [stdout] test sprint2::exercise3_2::tests::example_four ... ok
[INFO] [stdout] test sprint2::exercise3_2::tests::example_one ... ok
[INFO] [stdout] test sprint2::exercise3_2::tests::example_two ... ok
[INFO] [stdout] test sprint2::exercise4_1::tests::example_one ... ok
[INFO] [stdout] test sprint2::exercise3_1::tests::example_two ... ok
[INFO] [stdout] test sprint2::exercise4_1::tests::example_two ... ok
[INFO] [stdout] test sprint2::exercise3_2::tests::example_five ... ok
[INFO] [stdout] test sprint2::exercise4_2::tests::example_one ... ok
[INFO] [stdout] test sprint2::exercise3_1::tests::example_three ... ok
[INFO] [stdout] test sprint2::exercise3_2::tests::example_three ... ok
[INFO] [stdout] test sprint2::exercise4_2::tests::example_two ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 64 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0b00493b7294cae6312880bd9fc81f01fd0706052a856d65c1b08c2f604e8364", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b00493b7294cae6312880bd9fc81f01fd0706052a856d65c1b08c2f604e8364", kill_on_drop: false }`
[INFO] [stdout] 0b00493b7294cae6312880bd9fc81f01fd0706052a856d65c1b08c2f604e8364
