[INFO] cloning repository https://github.com/lshlyapnikov/grokking-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lshlyapnikov/grokking-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flshlyapnikov%2Fgrokking-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flshlyapnikov%2Fgrokking-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5cce67cceb595b89af1df13426ddd9d453c86a06 [INFO] testing lshlyapnikov/grokking-rust against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flshlyapnikov%2Fgrokking-rust" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/lshlyapnikov/grokking-rust on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/lshlyapnikov/grokking-rust [INFO] finished tweaking git repo https://github.com/lshlyapnikov/grokking-rust [INFO] tweaked toml for git repo https://github.com/lshlyapnikov/grokking-rust written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/lshlyapnikov/grokking-rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded bigint-base10 v0.1.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ce277f749fa78362e6ae9780c81fd4c4b7a2820bce631fdf2d9b1cfa704212b4 [INFO] running `Command { std: "docker" "start" "-a" "ce277f749fa78362e6ae9780c81fd4c4b7a2820bce631fdf2d9b1cfa704212b4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ce277f749fa78362e6ae9780c81fd4c4b7a2820bce631fdf2d9b1cfa704212b4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ce277f749fa78362e6ae9780c81fd4c4b7a2820bce631fdf2d9b1cfa704212b4", kill_on_drop: false }` [INFO] [stdout] ce277f749fa78362e6ae9780c81fd4c4b7a2820bce631fdf2d9b1cfa704212b4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 463cc90092ea105e3fa4fd546917dd2fcc07a7e59395a4c2887834831bf53ad7 [INFO] running `Command { std: "docker" "start" "-a" "463cc90092ea105e3fa4fd546917dd2fcc07a7e59395a4c2887834831bf53ad7", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.65 [INFO] [stderr] Compiling regex-syntax v0.3.9 [INFO] [stderr] Compiling log v0.3.9 [INFO] [stderr] Compiling memchr v0.1.11 [INFO] [stderr] Compiling thread-id v2.0.0 [INFO] [stderr] Compiling rand v0.4.6 [INFO] [stderr] Compiling thread_local v0.2.7 [INFO] [stderr] Compiling aho-corasick v0.5.3 [INFO] [stderr] Compiling regex v0.1.80 [INFO] [stderr] Compiling rand v0.3.23 [INFO] [stderr] Compiling env_logger v0.3.5 [INFO] [stderr] Compiling quickcheck v0.2.27 [INFO] [stderr] Compiling grokking-rust v0.0.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `volumes` [INFO] [stdout] --> src/grok/waterpouring.rs:40:7 [INFO] [stdout] | [INFO] [stdout] 40 | let volumes: Vec = vec![0, max_volumes.len()]; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_volumes` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `required_volume` [INFO] [stdout] --> src/grok/waterpouring.rs:39:40 [INFO] [stdout] | [INFO] [stdout] 39 | pub fn solve(max_volumes: &Vec, required_volume: usize) -> State { [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_required_volume` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Fill` [INFO] [stdout] --> src/grok/waterpouring.rs:5:3 [INFO] [stdout] | [INFO] [stdout] 5 | Fill { glass: usize }, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Empty` [INFO] [stdout] --> src/grok/waterpouring.rs:6:3 [INFO] [stdout] | [INFO] [stdout] 6 | Empty { glass: usize }, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Transfer` [INFO] [stdout] --> src/grok/waterpouring.rs:7:3 [INFO] [stdout] | [INFO] [stdout] 7 | Transfer { from: usize, to: usize }, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `solve` [INFO] [stdout] --> src/grok/waterpouring.rs:39:8 [INFO] [stdout] | [INFO] [stdout] 39 | pub fn solve(max_volumes: &Vec, required_volume: usize) -> State { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 12.48s [INFO] running `Command { std: "docker" "inspect" "463cc90092ea105e3fa4fd546917dd2fcc07a7e59395a4c2887834831bf53ad7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "463cc90092ea105e3fa4fd546917dd2fcc07a7e59395a4c2887834831bf53ad7", kill_on_drop: false }` [INFO] [stdout] 463cc90092ea105e3fa4fd546917dd2fcc07a7e59395a4c2887834831bf53ad7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 846098bcb64718c8bec4befbb06e884bfc0004774906ad5cfd8e53e2813bab84 [INFO] running `Command { std: "docker" "start" "-a" "846098bcb64718c8bec4befbb06e884bfc0004774906ad5cfd8e53e2813bab84", kill_on_drop: false }` [INFO] [stderr] Compiling grokking-rust v0.0.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `volumes` [INFO] [stdout] --> src/grok/waterpouring.rs:40:7 [INFO] [stdout] | [INFO] [stdout] 40 | let volumes: Vec = vec![0, max_volumes.len()]; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_volumes` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `required_volume` [INFO] [stdout] --> src/grok/waterpouring.rs:39:40 [INFO] [stdout] | [INFO] [stdout] 39 | pub fn solve(max_volumes: &Vec, required_volume: usize) -> State { [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_required_volume` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Fill` [INFO] [stdout] --> src/grok/waterpouring.rs:5:3 [INFO] [stdout] | [INFO] [stdout] 5 | Fill { glass: usize }, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Empty` [INFO] [stdout] --> src/grok/waterpouring.rs:6:3 [INFO] [stdout] | [INFO] [stdout] 6 | Empty { glass: usize }, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Transfer` [INFO] [stdout] --> src/grok/waterpouring.rs:7:3 [INFO] [stdout] | [INFO] [stdout] 7 | Transfer { from: usize, to: usize }, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `solve` [INFO] [stdout] --> src/grok/waterpouring.rs:39:8 [INFO] [stdout] | [INFO] [stdout] 39 | pub fn solve(max_volumes: &Vec, required_volume: usize) -> State { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.33s [INFO] running `Command { std: "docker" "inspect" "846098bcb64718c8bec4befbb06e884bfc0004774906ad5cfd8e53e2813bab84", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "846098bcb64718c8bec4befbb06e884bfc0004774906ad5cfd8e53e2813bab84", kill_on_drop: false }` [INFO] [stdout] 846098bcb64718c8bec4befbb06e884bfc0004774906ad5cfd8e53e2813bab84 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] fa00c1263d13e4840dee4fe2080cf1b1e4b1272d461fae8de16409064efd89f2 [INFO] running `Command { std: "docker" "start" "-a" "fa00c1263d13e4840dee4fe2080cf1b1e4b1272d461fae8de16409064efd89f2", kill_on_drop: false }` [INFO] [stderr] warning: unused variable: `volumes` [INFO] [stderr] --> src/grok/waterpouring.rs:40:7 [INFO] [stderr] | [INFO] [stderr] 40 | let volumes: Vec = vec![0, max_volumes.len()]; [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_volumes` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `required_volume` [INFO] [stderr] --> src/grok/waterpouring.rs:39:40 [INFO] [stderr] | [INFO] [stderr] 39 | pub fn solve(max_volumes: &Vec, required_volume: usize) -> State { [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_required_volume` [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Fill` [INFO] [stderr] --> src/grok/waterpouring.rs:5:3 [INFO] [stderr] | [INFO] [stderr] 5 | Fill { glass: usize }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Empty` [INFO] [stderr] --> src/grok/waterpouring.rs:6:3 [INFO] [stderr] | [INFO] [stderr] 6 | Empty { glass: usize }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Transfer` [INFO] [stderr] --> src/grok/waterpouring.rs:7:3 [INFO] [stderr] | [INFO] [stderr] 7 | Transfer { from: usize, to: usize }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `solve` [INFO] [stderr] --> src/grok/waterpouring.rs:39:8 [INFO] [stderr] | [INFO] [stderr] 39 | pub fn solve(max_volumes: &Vec, required_volume: usize) -> State { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 6 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/grokking_rust-9a1bfd012b1e151a) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test tests::test_mergesort ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "fa00c1263d13e4840dee4fe2080cf1b1e4b1272d461fae8de16409064efd89f2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fa00c1263d13e4840dee4fe2080cf1b1e4b1272d461fae8de16409064efd89f2", kill_on_drop: false }` [INFO] [stdout] fa00c1263d13e4840dee4fe2080cf1b1e4b1272d461fae8de16409064efd89f2