[INFO] cloning repository https://github.com/boris-ns/brainfuck-interpreter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/boris-ns/brainfuck-interpreter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fboris-ns%2Fbrainfuck-interpreter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fboris-ns%2Fbrainfuck-interpreter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ab8eda54434cd0f4a6e18db1f505bc3e44ef6e6e
[INFO] testing boris-ns/brainfuck-interpreter against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fboris-ns%2Fbrainfuck-interpreter" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/boris-ns/brainfuck-interpreter on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/boris-ns/brainfuck-interpreter
[INFO] finished tweaking git repo https://github.com/boris-ns/brainfuck-interpreter
[INFO] tweaked toml for git repo https://github.com/boris-ns/brainfuck-interpreter written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/boris-ns/brainfuck-interpreter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0131d5abbb930d0c96b8c0fc82a0ea5602bc9a1c09b0088e5c9bc879ab9aa508
[INFO] running `Command { std: "docker" "start" "-a" "0131d5abbb930d0c96b8c0fc82a0ea5602bc9a1c09b0088e5c9bc879ab9aa508", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0131d5abbb930d0c96b8c0fc82a0ea5602bc9a1c09b0088e5c9bc879ab9aa508", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0131d5abbb930d0c96b8c0fc82a0ea5602bc9a1c09b0088e5c9bc879ab9aa508", kill_on_drop: false }`
[INFO] [stdout] 0131d5abbb930d0c96b8c0fc82a0ea5602bc9a1c09b0088e5c9bc879ab9aa508
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63a6c927c9e75e170dd8103a38caceb7638773111659ed61d9ea402ec558d760
[INFO] running `Command { std: "docker" "start" "-a" "63a6c927c9e75e170dd8103a38caceb7638773111659ed61d9ea402ec558d760", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling brainfuck-interpreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> src/interpreter.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     io::stdout().flush();
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/interpreter.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     io::stdout().flush();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.85s
[INFO] running `Command { std: "docker" "inspect" "63a6c927c9e75e170dd8103a38caceb7638773111659ed61d9ea402ec558d760", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63a6c927c9e75e170dd8103a38caceb7638773111659ed61d9ea402ec558d760", kill_on_drop: false }`
[INFO] [stdout] 63a6c927c9e75e170dd8103a38caceb7638773111659ed61d9ea402ec558d760
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60fd9fc8c3fb3e5564512065d7ac4eb1271f029a91e8c78ba3399c34a55a9ecd
[INFO] running `Command { std: "docker" "start" "-a" "60fd9fc8c3fb3e5564512065d7ac4eb1271f029a91e8c78ba3399c34a55a9ecd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling brainfuck-interpreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> src/interpreter.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     io::stdout().flush();
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/interpreter.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     io::stdout().flush();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.05s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/brainfuck_interpreter-40c49efdfec44d39)
[INFO] running `Command { std: "docker" "inspect" "60fd9fc8c3fb3e5564512065d7ac4eb1271f029a91e8c78ba3399c34a55a9ecd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60fd9fc8c3fb3e5564512065d7ac4eb1271f029a91e8c78ba3399c34a55a9ecd", kill_on_drop: false }`
[INFO] [stdout] 60fd9fc8c3fb3e5564512065d7ac4eb1271f029a91e8c78ba3399c34a55a9ecd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 055a6e055a0404a14aec45c7feadfb958ddd1f904f39096ee3e70f7cfb03f04e
[INFO] running `Command { std: "docker" "start" "-a" "055a6e055a0404a14aec45c7feadfb958ddd1f904f39096ee3e70f7cfb03f04e", kill_on_drop: false }`
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]  --> src/interpreter.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     io::stdout().flush();
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/interpreter.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     io::stdout().flush();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `brainfuck-interpreter` (bin "brainfuck-interpreter" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/brainfuck_interpreter-40c49efdfec44d39)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "055a6e055a0404a14aec45c7feadfb958ddd1f904f39096ee3e70f7cfb03f04e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "055a6e055a0404a14aec45c7feadfb958ddd1f904f39096ee3e70f7cfb03f04e", kill_on_drop: false }`
[INFO] [stdout] 055a6e055a0404a14aec45c7feadfb958ddd1f904f39096ee3e70f7cfb03f04e