[INFO] fetching crate topset 0.4.0...
[INFO] testing topset-0.4.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2
[INFO] extracting crate topset 0.4.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate topset 0.4.0
[INFO] finished tweaking crates.io crate topset 0.4.0
[INFO] tweaked toml for crates.io crate topset 0.4.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate topset 0.4.0 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate topset 0.4.0 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fdd47b8f1550cea2846304e2e536e831f9093e9c192473adc7a718f4215d4c55
[INFO] running `Command { std: "docker" "start" "-a" "fdd47b8f1550cea2846304e2e536e831f9093e9c192473adc7a718f4215d4c55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fdd47b8f1550cea2846304e2e536e831f9093e9c192473adc7a718f4215d4c55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdd47b8f1550cea2846304e2e536e831f9093e9c192473adc7a718f4215d4c55", kill_on_drop: false }`
[INFO] [stdout] fdd47b8f1550cea2846304e2e536e831f9093e9c192473adc7a718f4215d4c55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 087d24a8965365660fbdd05b8da513e135fe821456a047b09d3ccfcefc6930fe
[INFO] running `Command { std: "docker" "start" "-a" "087d24a8965365660fbdd05b8da513e135fe821456a047b09d3ccfcefc6930fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling topset v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/heap.rs:284:18
[INFO] [stdout]     |
[INFO] [stdout] 284 |     pub fn drain(&mut self) -> std::vec::Drain<X> {
[INFO] [stdout]     |                  ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided 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: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 284 |     pub fn drain(&mut self) -> std::vec::Drain<'_, X> {
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "087d24a8965365660fbdd05b8da513e135fe821456a047b09d3ccfcefc6930fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "087d24a8965365660fbdd05b8da513e135fe821456a047b09d3ccfcefc6930fe", kill_on_drop: false }`
[INFO] [stdout] 087d24a8965365660fbdd05b8da513e135fe821456a047b09d3ccfcefc6930fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36a10f0eedacab6d8e72d6c27a47c976404209f55f88befdbc86e53514164fe4
[INFO] running `Command { std: "docker" "start" "-a" "36a10f0eedacab6d8e72d6c27a47c976404209f55f88befdbc86e53514164fe4", kill_on_drop: false }`
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/heap.rs:284:18
[INFO] [stdout]     |
[INFO] [stdout] 284 |     pub fn drain(&mut self) -> std::vec::Drain<X> {
[INFO] [stdout]     |                  ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided 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: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 284 |     pub fn drain(&mut self) -> std::vec::Drain<'_, X> {
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling topset v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/heap.rs:284:18
[INFO] [stdout]     |
[INFO] [stdout] 284 |     pub fn drain(&mut self) -> std::vec::Drain<X> {
[INFO] [stdout]     |                  ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided 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: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 284 |     pub fn drain(&mut self) -> std::vec::Drain<'_, X> {
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `Command { std: "docker" "inspect" "36a10f0eedacab6d8e72d6c27a47c976404209f55f88befdbc86e53514164fe4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36a10f0eedacab6d8e72d6c27a47c976404209f55f88befdbc86e53514164fe4", kill_on_drop: false }`
[INFO] [stdout] 36a10f0eedacab6d8e72d6c27a47c976404209f55f88befdbc86e53514164fe4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 76d8957cf301c5e477f04cacb1ef5123980628cdde0aaa97f55344bae665d3bd
[INFO] running `Command { std: "docker" "start" "-a" "76d8957cf301c5e477f04cacb1ef5123980628cdde0aaa97f55344bae665d3bd", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/heap.rs:284:18
[INFO] [stderr]     |
[INFO] [stderr] 284 |     pub fn drain(&mut self) -> std::vec::Drain<X> {
[INFO] [stderr]     |                  ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                  |
[INFO] [stderr]     |                  the lifetime is elided 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: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 284 |     pub fn drain(&mut self) -> std::vec::Drain<'_, X> {
[INFO] [stderr]     |                                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: `topset` (lib) generated 1 warning (run `cargo fix --lib -p topset` to apply 1 suggestion)
[INFO] [stderr] warning: `topset` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/topset-fc736ba5998e1230)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test heap::tests::greatest_score ... ok
[INFO] [stdout] test heap::tests::lowest_cost ... ok
[INFO] [stdout] test dummy_tests_just_for_coverage ... ok
[INFO] [stdout] test iter::tests::greatest_score ... ok
[INFO] [stdout] test iter::tests::iterator ... ok
[INFO] [stdout] test iter::tests::lowest_cost ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests topset
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test src/heap.rs - heap::TopSet<X,C>::iter (line 159) ... ok
[INFO] [stdout] test src/heap.rs - heap::TopSet<X,C>::new (line 27) ... ok
[INFO] [stdout] test src/heap.rs - heap::TopSet<X,C>::capacity (line 94) ... ok
[INFO] [stdout] test src/heap.rs - heap::TopSet<X,C>::is_empty (line 62) ... ok
[INFO] [stdout] test src/heap.rs - heap::TopSet<X,C>::beat (line 379) ... ok
[INFO] [stdout] test src/heap.rs - heap::TopSet<X,C>::drain (line 277) ... ok
[INFO] [stdout] test src/heap.rs - heap::TopSet<X,C>::is_candidate (line 135) ... ok
[INFO] [stdout] test src/heap.rs - heap::TopSet<X,C>::len (line 78) ... ok
[INFO] [stdout] test src/heap.rs - heap::TopSet<X,C>::clear (line 363) ... ok
[INFO] [stdout] test src/heap.rs - heap::TopSet<X,C>::resize (line 295) ... ok
[INFO] [stdout] test src/heap.rs - heap::TopSet<X,C>::insert (line 197) ... ok
[INFO] [stdout] test src/heap.rs - heap::TopSet<X,C>::into_iter_sorted (line 230) ... ok
[INFO] [stdout] test src/heap.rs - heap::TopSet<X,C>::peek (line 112) ... ok
[INFO] [stdout] test src/heap.rs - heap::TopSet<X,C>::pop (line 340) ... ok
[INFO] [stdout] test src/lib.rs - (line 10) ... ok
[INFO] [stdout] test src/heap.rs - heap::TopSet<X,C>::into_sorted_vec (line 250) ... ok
[INFO] [stdout] test src/heap.rs - heap::TopSet<X,C>::with_init (line 46) ... ok
[INFO] [stdout] test src/heap.rs - heap::TopSet<X,C>::into_vec (line 177) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.19s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "76d8957cf301c5e477f04cacb1ef5123980628cdde0aaa97f55344bae665d3bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76d8957cf301c5e477f04cacb1ef5123980628cdde0aaa97f55344bae665d3bd", kill_on_drop: false }`
[INFO] [stdout] 76d8957cf301c5e477f04cacb1ef5123980628cdde0aaa97f55344bae665d3bd