[INFO] cloning repository https://github.com/aeolus3000/hello_world_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aeolus3000/hello_world_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faeolus3000%2Fhello_world_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faeolus3000%2Fhello_world_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a67d550a87f08bc6b18337420c79384cc915ab08
[INFO] testing aeolus3000/hello_world_rust against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faeolus3000%2Fhello_world_rust" "/workspace/builds/worker-96/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-96/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aeolus3000/hello_world_rust on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aeolus3000/hello_world_rust
[INFO] finished tweaking git repo https://github.com/aeolus3000/hello_world_rust
[INFO] tweaked toml for git repo https://github.com/aeolus3000/hello_world_rust written to /workspace/builds/worker-96/source/Cargo.toml
[INFO] crate git repo https://github.com/aeolus3000/hello_world_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac93d94d90fbe935081fc2d669ce22cc21cccc30b1a5a0aaa679ef28dc5f340e
[INFO] running `Command { std: "docker" "start" "-a" "ac93d94d90fbe935081fc2d669ce22cc21cccc30b1a5a0aaa679ef28dc5f340e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac93d94d90fbe935081fc2d669ce22cc21cccc30b1a5a0aaa679ef28dc5f340e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac93d94d90fbe935081fc2d669ce22cc21cccc30b1a5a0aaa679ef28dc5f340e", kill_on_drop: false }`
[INFO] [stdout] ac93d94d90fbe935081fc2d669ce22cc21cccc30b1a5a0aaa679ef28dc5f340e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 485f4acd59882c2d05b3d50aeee66596339a6de83fdf9c43659ea2e20a17270e
[INFO] running `Command { std: "docker" "start" "-a" "485f4acd59882c2d05b3d50aeee66596339a6de83fdf9c43659ea2e20a17270e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust_stack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]  --> src/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let f = File::open("hello.txt")?;
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` 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 5.82s
[INFO] running `Command { std: "docker" "inspect" "485f4acd59882c2d05b3d50aeee66596339a6de83fdf9c43659ea2e20a17270e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "485f4acd59882c2d05b3d50aeee66596339a6de83fdf9c43659ea2e20a17270e", kill_on_drop: false }`
[INFO] [stdout] 485f4acd59882c2d05b3d50aeee66596339a6de83fdf9c43659ea2e20a17270e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 122370d36fcf75715db5ef8066ffa9d0f1c485743919900a87a5c84b207a9903
[INFO] running `Command { std: "docker" "start" "-a" "122370d36fcf75715db5ef8066ffa9d0f1c485743919900a87a5c84b207a9903", 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] [stderr]    Compiling rust_stack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]  --> src/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let f = File::open("hello.txt")?;
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` 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 0.66s
[INFO] running `Command { std: "docker" "inspect" "122370d36fcf75715db5ef8066ffa9d0f1c485743919900a87a5c84b207a9903", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "122370d36fcf75715db5ef8066ffa9d0f1c485743919900a87a5c84b207a9903", kill_on_drop: false }`
[INFO] [stdout] 122370d36fcf75715db5ef8066ffa9d0f1c485743919900a87a5c84b207a9903
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6455e889cc48c232cc96b4793bc89f542b2707cc043934a867015286fe4705aa
[INFO] running `Command { std: "docker" "start" "-a" "6455e889cc48c232cc96b4793bc89f542b2707cc043934a867015286fe4705aa", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]  --> src/main.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let f = File::open("hello.txt")?;
[INFO] [stderr]   |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_stack` (bin "rust_stack" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_stack-365fe2f749fc1914)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test utils::piglatin::piglatin_test::vocal_starting_string_should_be_converted_to_pig_latin ... ok
[INFO] [stdout] test utils::piglatin::piglatin_test::non_letter_starting_string_should_not_be_converted_to_pig_latin ... ok
[INFO] [stdout] test utils::piglatin::piglatin_test::consonant_string_should_be_converted_to_pig_latin ... ok
[INFO] [stdout] test utils::stack::stack_test::popping_from_stack_should_decrement_pointer ... ok
[INFO] [stdout] test utils::stack::stack_test::pushing_on_stack_should_be_visible_in_buffer ... ok
[INFO] [stdout] test utils::stack::stack_test::a_new_stack_should_be_empty ... ok
[INFO] [stdout] test utils::stack::stack_test::popping_from_stack_should_return_correct_value ... ok
[INFO] [stdout] test utils::piglatin::piglatin_test::an_empty_string_should_not_be_a_problem ... ok
[INFO] [stdout] test utils::stack::stack_test::pushing_on_stack_should_increment_pointer ... ok
[INFO] [stdout] test utils::stack::stack_test::stack_is_full_should_return_full_state ... ok
[INFO] [stdout] test utils::stack::stack_test::stack_is_empty_should_return_empty_state ... ok
[INFO] [stdout] test utils::stack::stack_test::stack_pop_should_return_error_when_empty ... ok
[INFO] [stdout] test utils::stack::stack_test::stack_push_should_return_error_when_full ... ok
[INFO] [stdout] test utils::stack::stack_test::pushing_once_in_the_stack_results_in_expected_size ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_stack-990e89330b89d1a6)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rust_stack
[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] [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" "6455e889cc48c232cc96b4793bc89f542b2707cc043934a867015286fe4705aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6455e889cc48c232cc96b4793bc89f542b2707cc043934a867015286fe4705aa", kill_on_drop: false }`
[INFO] [stdout] 6455e889cc48c232cc96b4793bc89f542b2707cc043934a867015286fe4705aa