[INFO] fetching crate slots 0.4.0...
[INFO] testing slots-0.4.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate slots 0.4.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate slots 0.4.0
[INFO] finished tweaking crates.io crate slots 0.4.0
[INFO] tweaked toml for crates.io crate slots 0.4.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate slots 0.4.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 59d3a2296eefc3ee27d7bb25ca1974a753f5bee08b16c0c12063df43d2816d7f
[INFO] running `Command { std: "docker" "start" "-a" "59d3a2296eefc3ee27d7bb25ca1974a753f5bee08b16c0c12063df43d2816d7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "59d3a2296eefc3ee27d7bb25ca1974a753f5bee08b16c0c12063df43d2816d7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59d3a2296eefc3ee27d7bb25ca1974a753f5bee08b16c0c12063df43d2816d7f", kill_on_drop: false }`
[INFO] [stdout] 59d3a2296eefc3ee27d7bb25ca1974a753f5bee08b16c0c12063df43d2816d7f
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e0efbe391fb1efe998f027d3e3b6afddcbc3f909217b429bc2db79e7e9aeb9d6
[INFO] running `Command { std: "docker" "start" "-a" "e0efbe391fb1efe998f027d3e3b6afddcbc3f909217b429bc2db79e7e9aeb9d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling array-init v2.1.0
[INFO] [stderr]    Compiling slots v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/slots.rs:196:17
[INFO] [stdout]     |
[INFO] [stdout] 196 |     pub fn iter(&self) -> Iter<IT> {
[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] 196 |     pub fn iter(&self) -> Iter<'_, IT> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/unrestricted.rs:95:17
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub fn iter(&self) -> Iter<IT> {
[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] 95 |     pub fn iter(&self) -> Iter<'_, IT> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/unrestricted.rs:117:21
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn iter_mut(&mut self) -> IterMut<IT> {
[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] 117 |     pub fn iter_mut(&mut self) -> IterMut<'_, IT> {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "e0efbe391fb1efe998f027d3e3b6afddcbc3f909217b429bc2db79e7e9aeb9d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0efbe391fb1efe998f027d3e3b6afddcbc3f909217b429bc2db79e7e9aeb9d6", kill_on_drop: false }`
[INFO] [stdout] e0efbe391fb1efe998f027d3e3b6afddcbc3f909217b429bc2db79e7e9aeb9d6
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 416de038f3c835f699503f181190c66e7f52f2cea07c31e1863500013d3a0b63
[INFO] running `Command { std: "docker" "start" "-a" "416de038f3c835f699503f181190c66e7f52f2cea07c31e1863500013d3a0b63", kill_on_drop: false }`
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/slots.rs:196:17
[INFO] [stdout]     |
[INFO] [stdout] 196 |     pub fn iter(&self) -> Iter<IT> {
[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] 196 |     pub fn iter(&self) -> Iter<'_, IT> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/unrestricted.rs:95:17
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub fn iter(&self) -> Iter<IT> {
[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] 95 |     pub fn iter(&self) -> Iter<'_, IT> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling slots v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/unrestricted.rs:117:21
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn iter_mut(&mut self) -> IterMut<IT> {
[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] 117 |     pub fn iter_mut(&mut self) -> IterMut<'_, IT> {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/slots.rs:196:17
[INFO] [stdout]     |
[INFO] [stdout] 196 |     pub fn iter(&self) -> Iter<IT> {
[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] 196 |     pub fn iter(&self) -> Iter<'_, IT> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/unrestricted.rs:95:17
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub fn iter(&self) -> Iter<IT> {
[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] 95 |     pub fn iter(&self) -> Iter<'_, IT> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/unrestricted.rs:117:21
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn iter_mut(&mut self) -> IterMut<IT> {
[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] 117 |     pub fn iter_mut(&mut self) -> IterMut<'_, IT> {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "416de038f3c835f699503f181190c66e7f52f2cea07c31e1863500013d3a0b63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "416de038f3c835f699503f181190c66e7f52f2cea07c31e1863500013d3a0b63", kill_on_drop: false }`
[INFO] [stdout] 416de038f3c835f699503f181190c66e7f52f2cea07c31e1863500013d3a0b63
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 50d0d3c05a20f97cb83367193850a132cfa72191d037717563614b8eeb3fc50c
[INFO] running `Command { std: "docker" "start" "-a" "50d0d3c05a20f97cb83367193850a132cfa72191d037717563614b8eeb3fc50c", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/slots.rs:196:17
[INFO] [stderr]     |
[INFO] [stderr] 196 |     pub fn iter(&self) -> Iter<IT> {
[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] 196 |     pub fn iter(&self) -> Iter<'_, IT> {
[INFO] [stderr]     |                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/unrestricted.rs:95:17
[INFO] [stderr]    |
[INFO] [stderr] 95 |     pub fn iter(&self) -> Iter<IT> {
[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] 95 |     pub fn iter(&self) -> Iter<'_, IT> {
[INFO] [stderr]    |                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/unrestricted.rs:117:21
[INFO] [stderr]     |
[INFO] [stderr] 117 |     pub fn iter_mut(&mut self) -> IterMut<IT> {
[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] 117 |     pub fn iter_mut(&mut self) -> IterMut<'_, IT> {
[INFO] [stderr]     |                                           +++
[INFO] [stderr] 
[INFO] [stderr] warning: `slots` (lib) generated 3 warnings (run `cargo fix --lib -p slots` to apply 3 suggestions)
[INFO] [stderr] warning: `slots` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/slots-3487feb2e89eadb6)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test iterator::iter_test::test_mut ... ok
[INFO] [stdout] test iterator::iter_test::sanity_check ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test.rs (/opt/rustwide/target/debug/deps/test-143d34d090d48632)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test cant_read_outside_bounds ... ok
[INFO] [stdout] test capacity_and_count ... ok
[INFO] [stdout] test key_can_be_used_to_read_value ... ok
[INFO] [stdout] test size_can_be_1 ... ok
[INFO] [stdout] test trying_to_read_deleted_element_returns_none ... ok
[INFO] [stdout] test trying_to_read_missing_element_returns_none ... ok
[INFO] [stdout] test store_returns_err_when_full ... ok
[INFO] [stdout] test zero_sized_collection ... ok
[INFO] [stdout] test index_can_be_used_to_read_value ... ok
[INFO] [stdout] test elements_can_be_modified_using_key ... ok
[INFO] [stdout] test is_compact - should panic ... FAILED
[INFO] [stdout] test use_across_slots_verify - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- is_compact stdout ----
[INFO] [stdout] note: test did not panic as expected at tests/test.rs:135:4
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     is_compact
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 11 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--test test`
[INFO] running `Command { std: "docker" "inspect" "50d0d3c05a20f97cb83367193850a132cfa72191d037717563614b8eeb3fc50c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50d0d3c05a20f97cb83367193850a132cfa72191d037717563614b8eeb3fc50c", kill_on_drop: false }`
[INFO] [stdout] 50d0d3c05a20f97cb83367193850a132cfa72191d037717563614b8eeb3fc50c
