[INFO] cloning repository https://github.com/stevenleadbeater/union-find-exercises [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stevenleadbeater/union-find-exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstevenleadbeater%2Funion-find-exercises", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstevenleadbeater%2Funion-find-exercises'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6e4d9721b4c8f9d4cb24113a8affd9ed3976decd [INFO] testing stevenleadbeater/union-find-exercises against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstevenleadbeater%2Funion-find-exercises" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/stevenleadbeater/union-find-exercises [INFO] finished tweaking git repo https://github.com/stevenleadbeater/union-find-exercises [INFO] tweaked toml for git repo https://github.com/stevenleadbeater/union-find-exercises written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/stevenleadbeater/union-find-exercises on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/stevenleadbeater/union-find-exercises 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e8591eb9eba4a628a58acbe4ffd55a8f7c414455248a44146e6e18dd65c7ee05 [INFO] running `Command { std: "docker" "start" "-a" "e8591eb9eba4a628a58acbe4ffd55a8f7c414455248a44146e6e18dd65c7ee05", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e8591eb9eba4a628a58acbe4ffd55a8f7c414455248a44146e6e18dd65c7ee05", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e8591eb9eba4a628a58acbe4ffd55a8f7c414455248a44146e6e18dd65c7ee05", kill_on_drop: false }` [INFO] [stdout] e8591eb9eba4a628a58acbe4ffd55a8f7c414455248a44146e6e18dd65c7ee05 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5b0ff236c2249a5c96a448cf4bd1659591ede3f25a86c7e9886f2a57bab46ef2 [INFO] running `Command { std: "docker" "start" "-a" "5b0ff236c2249a5c96a448cf4bd1659591ede3f25a86c7e9886f2a57bab46ef2", kill_on_drop: false }` [INFO] [stderr] Compiling Data_Structures_and_Algorithms v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct `QuickFind` is never constructed [INFO] [stdout] --> src/quick_find.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | struct QuickFind { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `union`, and `connected` are never used [INFO] [stdout] --> src/quick_find.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 5 | impl QuickFind { [INFO] [stdout] | -------------- associated items in this implementation [INFO] [stdout] 6 | fn new(size: i64) -> QuickFind { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 10 | fn union(&mut self, start: i64, end: i64) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 20 | fn connected(&self, start: i64, end: i64) -> bool { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `QuickUnion` is never constructed [INFO] [stdout] --> src/quick_union.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | struct QuickUnion { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `union`, `connected`, and `get_root` are never used [INFO] [stdout] --> src/quick_union.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 5 | impl QuickUnion { [INFO] [stdout] | --------------- associated items in this implementation [INFO] [stdout] 6 | fn new(size: i64) -> QuickUnion { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 12 | fn union(&mut self, start: i64, end: i64) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 17 | fn connected(&self, start: i64, end: i64) -> bool { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 23 | fn get_root(&self, item: i64) -> i64 { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `WeightedQuickUnion` is never constructed [INFO] [stdout] --> src/weighted_quick_union.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | struct WeightedQuickUnion { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `union`, `connected`, and `get_root` are never used [INFO] [stdout] --> src/weighted_quick_union.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 6 | impl WeightedQuickUnion { [INFO] [stdout] | ----------------------- associated items in this implementation [INFO] [stdout] 7 | fn new(size: i64) -> WeightedQuickUnion { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 14 | fn union(&mut self, start: i64, end: i64) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 27 | fn connected(&self, start: i64, end: i64) -> bool { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 33 | fn get_root(&self, item: i64) -> i64 { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `WeightedQuickUnionPathCompression` is never constructed [INFO] [stdout] --> src/weighted_quick_union_path_compression.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | struct WeightedQuickUnionPathCompression { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `union`, `connected`, and `get_root` are never used [INFO] [stdout] --> src/weighted_quick_union_path_compression.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 6 | impl WeightedQuickUnionPathCompression { [INFO] [stdout] | -------------------------------------- associated items in this implementation [INFO] [stdout] 7 | fn new(size: i64) -> WeightedQuickUnionPathCompression { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 14 | fn union(&mut self, start: i64, end: i64) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 27 | fn connected(&mut self, start: i64, end: i64) -> bool { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 33 | fn get_root(&mut self, item: i64) -> i64 { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Percolation` is never constructed [INFO] [stdout] --> src/percolation.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | struct Percolation { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `union`, `connected`, `get_root`, and `percolates` are never used [INFO] [stdout] --> src/percolation.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 7 | impl Percolation { [INFO] [stdout] | ---------------- associated items in this implementation [INFO] [stdout] 8 | fn new(size: i64) -> Percolation { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 37 | fn union(&mut self, start: (i64, i64), end: (i64, i64)) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 50 | fn connected(&mut self, start: (i64, i64), end: (i64, i64)) -> bool { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 56 | fn get_root(&mut self, item: (i64, i64)) -> (i64, i64) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 69 | fn percolates(&mut self) -> bool { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.32s [INFO] running `Command { std: "docker" "inspect" "5b0ff236c2249a5c96a448cf4bd1659591ede3f25a86c7e9886f2a57bab46ef2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5b0ff236c2249a5c96a448cf4bd1659591ede3f25a86c7e9886f2a57bab46ef2", kill_on_drop: false }` [INFO] [stdout] 5b0ff236c2249a5c96a448cf4bd1659591ede3f25a86c7e9886f2a57bab46ef2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] fbd5fdc4f215a649da6a9fce7b700c8c1e323405efab04326bd15f8a396a2edc [INFO] running `Command { std: "docker" "start" "-a" "fbd5fdc4f215a649da6a9fce7b700c8c1e323405efab04326bd15f8a396a2edc", kill_on_drop: false }` [INFO] [stderr] Compiling Data_Structures_and_Algorithms v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.63s [INFO] running `Command { std: "docker" "inspect" "fbd5fdc4f215a649da6a9fce7b700c8c1e323405efab04326bd15f8a396a2edc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fbd5fdc4f215a649da6a9fce7b700c8c1e323405efab04326bd15f8a396a2edc", kill_on_drop: false }` [INFO] [stdout] fbd5fdc4f215a649da6a9fce7b700c8c1e323405efab04326bd15f8a396a2edc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] b3b5c030bc9285cf017125010734ee32a18ed2e3de0d4da65781dc6192e523a7 [INFO] running `Command { std: "docker" "start" "-a" "b3b5c030bc9285cf017125010734ee32a18ed2e3de0d4da65781dc6192e523a7", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/Data_Structures_and_Algorithms-a3dc02251813fac9) [INFO] [stdout] [INFO] [stdout] running 48 tests [INFO] [stdout] test percolation::test::does_not_percolate ... ok [INFO] [stdout] test percolation::test::percolates_2 ... ok [INFO] [stdout] test percolation::test::percolates_5 ... ok [INFO] [stdout] test percolation::test::percolates_column_4 ... ok [INFO] [stdout] test quick_find::tests::connected_8_9 ... ok [INFO] [stdout] test percolation::test::percolates_column_5 ... ok [INFO] [stdout] test quick_find::tests::new ... ok [INFO] [stdout] test quick_find::tests::union_1_2 ... ok [INFO] [stdout] test quick_find::tests::new_contents ... ok [INFO] [stdout] test percolation::test::percolates_column_3 ... ok [INFO] [stdout] test quick_find::tests::union_1_2_3_4_8_3_4_9_5_6 ... ok [INFO] [stdout] test percolation::test::percolates_column_1 ... ok [INFO] [stdout] test percolation::test::percolates_3 ... ok [INFO] [stdout] test quick_find::tests::connected_5_0 ... ok [INFO] [stdout] test quick_union::tests::union_1_2_3_4 ... ok [INFO] [stdout] test percolation::test::percolates_column_2 ... ok [INFO] [stdout] test quick_union::tests::union_1_2_3_4_8_3 ... ok [INFO] [stdout] test quick_union::tests::connected_8_9 ... ok [INFO] [stdout] test quick_union::tests::new ... ok [INFO] [stdout] test quick_union::tests::union_1_2 ... ok [INFO] [stdout] test quick_union::tests::union_1_2_3_4_8_3_4_9 ... ok [INFO] [stdout] test quick_union::tests::union_1_2_3_4_8_3_4_9_5_6 ... ok [INFO] [stdout] test quick_union::tests::new_contents ... ok [INFO] [stdout] test weighted_quick_union::tests::connected_5_0 ... ok [INFO] [stdout] test quick_find::tests::union_1_2_3_4_8_3_4_9 ... ok [INFO] [stdout] test weighted_quick_union::tests::connected_8_9 ... ok [INFO] [stdout] test weighted_quick_union::tests::new ... ok [INFO] [stdout] test weighted_quick_union::tests::new_contents ... ok [INFO] [stdout] test weighted_quick_union::tests::union_1_2 ... ok [INFO] [stdout] test weighted_quick_union::tests::union_1_2_3_4 ... ok [INFO] [stdout] test weighted_quick_union::tests::union_1_2_3_4_8_3 ... ok [INFO] [stdout] test weighted_quick_union::tests::union_1_2_3_4_8_3_4_9 ... ok [INFO] [stdout] test weighted_quick_union::tests::union_1_2_3_4_8_3_4_9_5_6 ... ok [INFO] [stdout] test percolation::test::percolates_4 ... ok [INFO] [stdout] test weighted_quick_union_path_compression::tests::connected_5_0 ... ok [INFO] [stdout] test weighted_quick_union_path_compression::tests::new_contents ... ok [INFO] [stdout] test weighted_quick_union_path_compression::tests::union_1_2_3_4_8_3 ... ok [INFO] [stdout] test weighted_quick_union_path_compression::tests::union_1_2_3_4_8_3_4_9 ... ok [INFO] [stdout] test weighted_quick_union_path_compression::tests::union_1_2_3_4_8_3_4_9_5_6 ... ok [INFO] [stdout] test weighted_quick_union_path_compression::tests::connected_8_9 ... ok [INFO] [stdout] test weighted_quick_union_path_compression::tests::new ... ok [INFO] [stdout] test weighted_quick_union_path_compression::tests::union_1_2 ... ok [INFO] [stdout] test weighted_quick_union_path_compression::tests::union_1_2_2_3_3_4_5_6_6_7_7_8_5_1 ... ok [INFO] [stdout] test weighted_quick_union_path_compression::tests::union_1_2_3_4 ... ok [INFO] [stdout] test percolation::test::new ... ok [INFO] [stdout] test quick_find::tests::union_1_2_3_4 ... ok [INFO] [stdout] test quick_find::tests::union_1_2_3_4_8_3 ... ok [INFO] [stdout] test quick_union::tests::connected_5_0 ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 48 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "b3b5c030bc9285cf017125010734ee32a18ed2e3de0d4da65781dc6192e523a7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b3b5c030bc9285cf017125010734ee32a18ed2e3de0d4da65781dc6192e523a7", kill_on_drop: false }` [INFO] [stdout] b3b5c030bc9285cf017125010734ee32a18ed2e3de0d4da65781dc6192e523a7