[INFO] fetching crate hopcroft-karp 0.2.1... [INFO] testing hopcroft-karp-0.2.1 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0 [INFO] extracting crate hopcroft-karp 0.2.1 into /workspace/builds/worker-3-tc1/source [INFO] started tweaking crates.io crate hopcroft-karp 0.2.1 [INFO] finished tweaking crates.io crate hopcroft-karp 0.2.1 [INFO] tweaked toml for crates.io crate hopcroft-karp 0.2.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate hopcroft-karp 0.2.1 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 16 packages to latest compatible versions [INFO] [stderr] Adding rand v0.8.5 (available: v0.9.1) [INFO] [stderr] Adding rand_chacha v0.3.1 (available: v0.9.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 10df81f4eb7301636223fc8e6bf6db7b7ebddfc8ab7f113e6bce02d70f77c31a [INFO] running `Command { std: "docker" "start" "-a" "10df81f4eb7301636223fc8e6bf6db7b7ebddfc8ab7f113e6bce02d70f77c31a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "10df81f4eb7301636223fc8e6bf6db7b7ebddfc8ab7f113e6bce02d70f77c31a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "10df81f4eb7301636223fc8e6bf6db7b7ebddfc8ab7f113e6bce02d70f77c31a", kill_on_drop: false }` [INFO] [stdout] 10df81f4eb7301636223fc8e6bf6db7b7ebddfc8ab7f113e6bce02d70f77c31a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 749ec3ef579a3c7bf2f8f31352d72e2b095ab54fd2709ecdb87faff4f56ca289 [INFO] running `Command { std: "docker" "start" "-a" "749ec3ef579a3c7bf2f8f31352d72e2b095ab54fd2709ecdb87faff4f56ca289", kill_on_drop: false }` [INFO] [stderr] Compiling hopcroft-karp v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:250:24 [INFO] [stdout] | [INFO] [stdout] 250 | fn neighbours<'a>(&'a self, u:&V) -> std::collections::hash_set::Iter { [INFO] [stdout] | ^^ ----------------------------------- the lifetime gets resolved as `'a` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 250 | fn neighbours<'a>(&'a self, u:&V) -> std::collections::hash_set::Iter<'a, V> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:254:32 [INFO] [stdout] | [INFO] [stdout] 254 | fn neighbours_guarded<'a>(&'a self, guarded:&Guarded) -> std::collections::hash_set::Iter { [INFO] [stdout] | ^^ ----------------------------------- the lifetime gets resolved as `'a` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 254 | fn neighbours_guarded<'a>(&'a self, guarded:&Guarded) -> std::collections::hash_set::Iter<'a, V> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s [INFO] running `Command { std: "docker" "inspect" "749ec3ef579a3c7bf2f8f31352d72e2b095ab54fd2709ecdb87faff4f56ca289", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "749ec3ef579a3c7bf2f8f31352d72e2b095ab54fd2709ecdb87faff4f56ca289", kill_on_drop: false }` [INFO] [stdout] 749ec3ef579a3c7bf2f8f31352d72e2b095ab54fd2709ecdb87faff4f56ca289 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 297fd79292ca26aece1f5c1cf207faf1b8f63138ca3e4f9315bee4eba287b33a [INFO] running `Command { std: "docker" "start" "-a" "297fd79292ca26aece1f5c1cf207faf1b8f63138ca3e4f9315bee4eba287b33a", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.174 [INFO] [stderr] Compiling zerocopy v0.8.26 [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:250:24 [INFO] [stdout] | [INFO] [stdout] 250 | fn neighbours<'a>(&'a self, u:&V) -> std::collections::hash_set::Iter { [INFO] [stdout] | ^^ ----------------------------------- the lifetime gets resolved as `'a` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 250 | fn neighbours<'a>(&'a self, u:&V) -> std::collections::hash_set::Iter<'a, V> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:254:32 [INFO] [stdout] | [INFO] [stdout] 254 | fn neighbours_guarded<'a>(&'a self, guarded:&Guarded) -> std::collections::hash_set::Iter { [INFO] [stdout] | ^^ ----------------------------------- the lifetime gets resolved as `'a` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 254 | fn neighbours_guarded<'a>(&'a self, guarded:&Guarded) -> std::collections::hash_set::Iter<'a, V> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling getrandom v0.2.16 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling ppv-lite86 v0.2.21 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling hopcroft-karp v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:250:24 [INFO] [stdout] | [INFO] [stdout] 250 | fn neighbours<'a>(&'a self, u:&V) -> std::collections::hash_set::Iter { [INFO] [stdout] | ^^ ----------------------------------- the lifetime gets resolved as `'a` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 250 | fn neighbours<'a>(&'a self, u:&V) -> std::collections::hash_set::Iter<'a, V> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:254:32 [INFO] [stdout] | [INFO] [stdout] 254 | fn neighbours_guarded<'a>(&'a self, guarded:&Guarded) -> std::collections::hash_set::Iter { [INFO] [stdout] | ^^ ----------------------------------- the lifetime gets resolved as `'a` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 254 | fn neighbours_guarded<'a>(&'a self, guarded:&Guarded) -> std::collections::hash_set::Iter<'a, V> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 5.10s [INFO] running `Command { std: "docker" "inspect" "297fd79292ca26aece1f5c1cf207faf1b8f63138ca3e4f9315bee4eba287b33a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "297fd79292ca26aece1f5c1cf207faf1b8f63138ca3e4f9315bee4eba287b33a", kill_on_drop: false }` [INFO] [stdout] 297fd79292ca26aece1f5c1cf207faf1b8f63138ca3e4f9315bee4eba287b33a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 3f23d47bfdb7f4c510fba4a21021ffd0a05ba72ebb77b0f40edaac847c4ead08 [INFO] running `Command { std: "docker" "start" "-a" "3f23d47bfdb7f4c510fba4a21021ffd0a05ba72ebb77b0f40edaac847c4ead08", kill_on_drop: false }` [INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stderr] --> src/lib.rs:250:24 [INFO] [stderr] | [INFO] [stderr] 250 | fn neighbours<'a>(&'a self, u:&V) -> std::collections::hash_set::Iter { [INFO] [stderr] | ^^ ----------------------------------- the lifetime gets resolved as `'a` [INFO] [stderr] | | [INFO] [stderr] | this lifetime flows to the output [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stderr] help: one option is to consistently use `'a` [INFO] [stderr] | [INFO] [stderr] 250 | fn neighbours<'a>(&'a self, u:&V) -> std::collections::hash_set::Iter<'a, V> { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stderr] --> src/lib.rs:254:32 [INFO] [stderr] | [INFO] [stderr] 254 | fn neighbours_guarded<'a>(&'a self, guarded:&Guarded) -> std::collections::hash_set::Iter { [INFO] [stderr] | ^^ ----------------------------------- the lifetime gets resolved as `'a` [INFO] [stderr] | | [INFO] [stderr] | this lifetime flows to the output [INFO] [stderr] | [INFO] [stderr] help: one option is to consistently use `'a` [INFO] [stderr] | [INFO] [stderr] 254 | fn neighbours_guarded<'a>(&'a self, guarded:&Guarded) -> std::collections::hash_set::Iter<'a, V> { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: `hopcroft-karp` (lib) generated 2 warnings (run `cargo fix --lib -p hopcroft-karp` to apply 2 suggestions) [INFO] [stderr] warning: `hopcroft-karp` (lib test) generated 2 warnings (2 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/hopcroft_karp-e5ccb6beb95d28b5) [INFO] [stdout] [INFO] [stdout] running 6 tests [INFO] [stdout] test tests::test_basic ... ok [INFO] [stdout] test tests::test_spiderman ... ok [INFO] [stdout] test tests::test_edge_cases ... ok [INFO] [stdout] test tests::test_random_lopsided ... ok [INFO] [stdout] test tests::test_random_perfect ... ok [INFO] [stdout] test tests::test_non_bipartite - should panic ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "3f23d47bfdb7f4c510fba4a21021ffd0a05ba72ebb77b0f40edaac847c4ead08", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3f23d47bfdb7f4c510fba4a21021ffd0a05ba72ebb77b0f40edaac847c4ead08", kill_on_drop: false }` [INFO] [stdout] 3f23d47bfdb7f4c510fba4a21021ffd0a05ba72ebb77b0f40edaac847c4ead08