[INFO] fetching crate modern-multiset 1.0.0...
[INFO] testing modern-multiset-1.0.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate modern-multiset 1.0.0 into /workspace/builds/worker-6-tc2/source
[INFO] removed /workspace/builds/worker-6-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate modern-multiset 1.0.0
[INFO] finished tweaking crates.io crate modern-multiset 1.0.0
[INFO] tweaked toml for crates.io crate modern-multiset 1.0.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate modern-multiset 1.0.0 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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" "+beta-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 7 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[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" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f8fbca330f3dcd46ef5df21226c7466f2ef0ad4073eb61e06787996d9e822031
[INFO] running `Command { std: "docker" "start" "-a" "f8fbca330f3dcd46ef5df21226c7466f2ef0ad4073eb61e06787996d9e822031", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8fbca330f3dcd46ef5df21226c7466f2ef0ad4073eb61e06787996d9e822031", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8fbca330f3dcd46ef5df21226c7466f2ef0ad4073eb61e06787996d9e822031", kill_on_drop: false }`
[INFO] [stdout] f8fbca330f3dcd46ef5df21226c7466f2ef0ad4073eb61e06787996d9e822031
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7fe3930fba1ed554d151c663f897fe3b27495f0a9454bd6b88320bab76818126
[INFO] running `Command { std: "docker" "start" "-a" "7fe3930fba1ed554d151c663f897fe3b27495f0a9454bd6b88320bab76818126", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling modern-multiset v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/multiset.rs:91:17
[INFO] [stdout]    |
[INFO] [stdout] 91 |     pub fn iter(&self) -> Iter<K> {
[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] 91 |     pub fn iter(&self) -> Iter<'_, K> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/multiset.rs:183:30
[INFO] [stdout]     |
[INFO] [stdout] 183 |     pub fn distinct_elements(&self) -> Keys<K, usize> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 183 |     pub fn distinct_elements(&self) -> Keys<'_, K, usize> {
[INFO] [stdout]     |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "7fe3930fba1ed554d151c663f897fe3b27495f0a9454bd6b88320bab76818126", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fe3930fba1ed554d151c663f897fe3b27495f0a9454bd6b88320bab76818126", kill_on_drop: false }`
[INFO] [stdout] 7fe3930fba1ed554d151c663f897fe3b27495f0a9454bd6b88320bab76818126
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4ab732c58efef3fe685c0021a8a70d772ef6ea7664054ca95409dba2b576c0b
[INFO] running `Command { std: "docker" "start" "-a" "f4ab732c58efef3fe685c0021a8a70d772ef6ea7664054ca95409dba2b576c0b", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/multiset.rs:91:17
[INFO] [stdout]    |
[INFO] [stdout] 91 |     pub fn iter(&self) -> Iter<K> {
[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] 91 |     pub fn iter(&self) -> Iter<'_, K> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling modern-multiset v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/multiset.rs:183:30
[INFO] [stdout]     |
[INFO] [stdout] 183 |     pub fn distinct_elements(&self) -> Keys<K, usize> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 183 |     pub fn distinct_elements(&self) -> Keys<'_, K, usize> {
[INFO] [stdout]     |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/multiset.rs:91:17
[INFO] [stdout]    |
[INFO] [stdout] 91 |     pub fn iter(&self) -> Iter<K> {
[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] 91 |     pub fn iter(&self) -> Iter<'_, K> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/multiset.rs:183:30
[INFO] [stdout]     |
[INFO] [stdout] 183 |     pub fn distinct_elements(&self) -> Keys<K, usize> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 183 |     pub fn distinct_elements(&self) -> Keys<'_, K, usize> {
[INFO] [stdout]     |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "f4ab732c58efef3fe685c0021a8a70d772ef6ea7664054ca95409dba2b576c0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4ab732c58efef3fe685c0021a8a70d772ef6ea7664054ca95409dba2b576c0b", kill_on_drop: false }`
[INFO] [stdout] f4ab732c58efef3fe685c0021a8a70d772ef6ea7664054ca95409dba2b576c0b
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 04ac02d02b1377c0634bde697303e188e3fa2c1e801c0047a261760007513609
[INFO] running `Command { std: "docker" "start" "-a" "04ac02d02b1377c0634bde697303e188e3fa2c1e801c0047a261760007513609", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stdout] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout] running 3 tests
[INFO] [stderr]   --> src/multiset.rs:91:17
[INFO] [stdout] test multiset::test_multiset::test_eq ... ok
[INFO] [stderr]    |
[INFO] [stdout] test multiset::test_multiset::test_iterate ... ok
[INFO] [stderr] 91 |     pub fn iter(&self) -> Iter<K> {
[INFO] [stdout] test multiset::test_multiset::test_size ... ok
[INFO] [stderr]    |                 ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 
[INFO] [stderr]    |                 |
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |                 the lifetime is elided here
[INFO] [stdout] 
[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] 91 |     pub fn iter(&self) -> Iter<'_, K> {
[INFO] [stderr]    |                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/multiset.rs:183:30
[INFO] [stderr]     |
[INFO] [stderr] 183 |     pub fn distinct_elements(&self) -> Keys<K, usize> {
[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] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 183 |     pub fn distinct_elements(&self) -> Keys<'_, K, usize> {
[INFO] [stderr]     |                                             +++
[INFO] [stderr] 
[INFO] [stderr] warning: `modern-multiset` (lib) generated 2 warnings (run `cargo fix --lib -p modern-multiset` to apply 2 suggestions)
[INFO] [stderr] warning: `modern-multiset` (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/debug/deps/modern_multiset-2936a306bb7eeadc)
[INFO] [stderr]    Doc-tests modern_multiset
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test src/multiset.rs - multiset::HashMultiSet<K>::new (line 61) ... ok
[INFO] [stdout] test src/multiset.rs - multiset::HashMultiSet<K>::remove_all (line 294) ... ok
[INFO] [stdout] test src/multiset.rs - multiset::HashMultiSet<K>::remove (line 239) ... ok
[INFO] [stdout] test src/multiset.rs - multiset::HashMultiSet<A>::from_iter (line 404) ... ok
[INFO] [stdout] test src/multiset.rs - multiset::HashMultiSet<K>::count_of (line 313) ... ok
[INFO] [stdout] test src/multiset.rs - multiset::HashMultiSet<K>::len (line 153) ... ok
[INFO] [stdout] test src/multiset.rs - multiset::HashMultiSet<K>::contains (line 123) ... ok
[INFO] [stdout] test src/multiset.rs - multiset::HashMultiSet<K>::insert (line 193) ... ok
[INFO] [stdout] test src/multiset.rs - multiset::HashMultiSet<K>::is_empty (line 103) ... ok
[INFO] [stdout] test src/multiset.rs - multiset::HashMultiSet<K>::remove_times (line 261) ... ok
[INFO] [stdout] test src/multiset.rs - multiset::HashMultiSet<K>::insert_times (line 211) ... ok
[INFO] [stdout] test src/multiset.rs - multiset::HashMultiSet<K>::distinct_elements (line 171) ... ok
[INFO] [stdout] test src/multiset.rs - multiset::HashMultiSet<K>::iter (line 78) ... ok
[INFO] [stdout] test src/multiset.rs - multiset::HashMultiSet<T>::add (line 340) ... ok
[INFO] [stdout] test src/multiset.rs - multiset::HashMultiSet<T>::sub (line 374) ... ok
[INFO] [stdout] test src/multiset.rs - multiset::HashMultiSet<K>::len (line 144) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.64s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "04ac02d02b1377c0634bde697303e188e3fa2c1e801c0047a261760007513609", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04ac02d02b1377c0634bde697303e188e3fa2c1e801c0047a261760007513609", kill_on_drop: false }`
[INFO] [stdout] 04ac02d02b1377c0634bde697303e188e3fa2c1e801c0047a261760007513609
