[INFO] fetching crate hopcroft-karp 0.2.1...
[INFO] testing hopcroft-karp-0.2.1 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate hopcroft-karp 0.2.1 into /workspace/builds/worker-6-tc2/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-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate hopcroft-karp 0.2.1 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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: v0.9.2)
[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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 73661f8b9064e49bef92e386aa1a63cab3e3d7cfa460427302733c98b857ff52
[INFO] running `Command { std: "docker" "start" "-a" "73661f8b9064e49bef92e386aa1a63cab3e3d7cfa460427302733c98b857ff52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73661f8b9064e49bef92e386aa1a63cab3e3d7cfa460427302733c98b857ff52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73661f8b9064e49bef92e386aa1a63cab3e3d7cfa460427302733c98b857ff52", kill_on_drop: false }`
[INFO] [stdout] 73661f8b9064e49bef92e386aa1a63cab3e3d7cfa460427302733c98b857ff52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ec135325a8c1b24fad6fb0be52f7d3b5ed8603d25cd39581b7f6d395d8d2b44
[INFO] running `Command { std: "docker" "start" "-a" "4ec135325a8c1b24fad6fb0be52f7d3b5ed8603d25cd39581b7f6d395d8d2b44", kill_on_drop: false }`
[INFO] [stderr]    Compiling hopcroft-karp v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:250:42
[INFO] [stdout]     |
[INFO] [stdout] 250 |     fn neighbours<'a>(&'a self, u:&V) -> std::collections::hash_set::Iter<V>  {
[INFO] [stdout]     |                        --                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: 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: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:254:65
[INFO] [stdout]     |
[INFO] [stdout] 254 |     fn neighbours_guarded<'a>(&'a self, guarded:&Guarded<V>) -> std::collections::hash_set::Iter<V>  {
[INFO] [stdout]     |                                -- the lifetime is named here    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 254 |     fn neighbours_guarded<'a>(&'a self, guarded:&Guarded<V>) -> std::collections::hash_set::Iter<'a, V>  {
[INFO] [stdout]     |                                                                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "4ec135325a8c1b24fad6fb0be52f7d3b5ed8603d25cd39581b7f6d395d8d2b44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ec135325a8c1b24fad6fb0be52f7d3b5ed8603d25cd39581b7f6d395d8d2b44", kill_on_drop: false }`
[INFO] [stdout] 4ec135325a8c1b24fad6fb0be52f7d3b5ed8603d25cd39581b7f6d395d8d2b44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4436c161619a5134382f06c770ec19d59664fecabf08d28d0c44e7b648a1bf2d
[INFO] running `Command { std: "docker" "start" "-a" "4436c161619a5134382f06c770ec19d59664fecabf08d28d0c44e7b648a1bf2d", kill_on_drop: false }`
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:250:42
[INFO] [stdout]     |
[INFO] [stdout] 250 |     fn neighbours<'a>(&'a self, u:&V) -> std::collections::hash_set::Iter<V>  {
[INFO] [stdout]     |                        --                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: 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: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:254:65
[INFO] [stdout]     |
[INFO] [stdout] 254 |     fn neighbours_guarded<'a>(&'a self, guarded:&Guarded<V>) -> std::collections::hash_set::Iter<V>  {
[INFO] [stdout]     |                                -- the lifetime is named here    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 254 |     fn neighbours_guarded<'a>(&'a self, guarded:&Guarded<V>) -> std::collections::hash_set::Iter<'a, V>  {
[INFO] [stdout]     |                                                                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling hopcroft-karp v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:250:42
[INFO] [stdout]     |
[INFO] [stdout] 250 |     fn neighbours<'a>(&'a self, u:&V) -> std::collections::hash_set::Iter<V>  {
[INFO] [stdout]     |                        --                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: 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: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:254:65
[INFO] [stdout]     |
[INFO] [stdout] 254 |     fn neighbours_guarded<'a>(&'a self, guarded:&Guarded<V>) -> std::collections::hash_set::Iter<V>  {
[INFO] [stdout]     |                                -- the lifetime is named here    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 254 |     fn neighbours_guarded<'a>(&'a self, guarded:&Guarded<V>) -> std::collections::hash_set::Iter<'a, V>  {
[INFO] [stdout]     |                                                                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.61s
[INFO] running `Command { std: "docker" "inspect" "4436c161619a5134382f06c770ec19d59664fecabf08d28d0c44e7b648a1bf2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4436c161619a5134382f06c770ec19d59664fecabf08d28d0c44e7b648a1bf2d", kill_on_drop: false }`
[INFO] [stdout] 4436c161619a5134382f06c770ec19d59664fecabf08d28d0c44e7b648a1bf2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 284b8d0939eaf27545aa70cd9e09870b06983f37e975ce713d6020fd815f10d4
[INFO] running `Command { std: "docker" "start" "-a" "284b8d0939eaf27545aa70cd9e09870b06983f37e975ce713d6020fd815f10d4", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:250:42
[INFO] [stderr]     |
[INFO] [stderr] 250 |     fn neighbours<'a>(&'a self, u:&V) -> std::collections::hash_set::Iter<V>  {
[INFO] [stderr]     |                        --                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                        |
[INFO] [stderr]     |                        the lifetime is named here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: 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: hiding a lifetime that's named elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:254:65
[INFO] [stderr]     |
[INFO] [stderr] 254 |     fn neighbours_guarded<'a>(&'a self, guarded:&Guarded<V>) -> std::collections::hash_set::Iter<V>  {
[INFO] [stderr]     |                                -- the lifetime is named here    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: consistently use `'a`
[INFO] [stderr]     |
[INFO] [stderr] 254 |     fn neighbours_guarded<'a>(&'a self, guarded:&Guarded<V>) -> 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 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/hopcroft_karp-1ff472c532eca5ef)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::test_edge_cases ... ok
[INFO] [stdout] test tests::test_basic ... ok
[INFO] [stdout] test tests::test_spiderman ... 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 0.04s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests hopcroft_karp
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 13) ... ok
[INFO] [stdout] test src/lib.rs - (line 3) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.68s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "284b8d0939eaf27545aa70cd9e09870b06983f37e975ce713d6020fd815f10d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "284b8d0939eaf27545aa70cd9e09870b06983f37e975ce713d6020fd815f10d4", kill_on_drop: false }`
[INFO] [stdout] 284b8d0939eaf27545aa70cd9e09870b06983f37e975ce713d6020fd815f10d4
