[INFO] fetching crate swimmer 0.3.0... [INFO] testing swimmer-0.3.0 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate swimmer 0.3.0 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate swimmer 0.3.0 [INFO] finished tweaking crates.io crate swimmer 0.3.0 [INFO] tweaked toml for crates.io crate swimmer 0.3.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate swimmer 0.3.0 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] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 68 packages to latest compatible versions [INFO] [stderr] Adding criterion v0.2.11 (available: v0.7.0) [INFO] [stderr] Adding hashbrown v0.6.3 (available: v0.16.0) [INFO] [stderr] Adding smallvec v0.6.14 (available: v1.15.1) [INFO] [stderr] Adding static_assertions v0.3.4 (available: v1.1.0) [INFO] [stderr] Adding thread_local v0.3.6 (available: v1.1.9) [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-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9e2dd11f87b64069540aef319546a582fb00a89a0d547ec2fdf516f1cd0f9921 [INFO] running `Command { std: "docker" "start" "-a" "9e2dd11f87b64069540aef319546a582fb00a89a0d547ec2fdf516f1cd0f9921", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9e2dd11f87b64069540aef319546a582fb00a89a0d547ec2fdf516f1cd0f9921", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9e2dd11f87b64069540aef319546a582fb00a89a0d547ec2fdf516f1cd0f9921", kill_on_drop: false }` [INFO] [stdout] 9e2dd11f87b64069540aef319546a582fb00a89a0d547ec2fdf516f1cd0f9921 [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=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] 234e1668d7b89457fe172d89e1056e3ffcae40c83eafcd032274bcb7a65fbf62 [INFO] running `Command { std: "docker" "start" "-a" "234e1668d7b89457fe172d89e1056e3ffcae40c83eafcd032274bcb7a65fbf62", kill_on_drop: false }` [INFO] [stderr] Compiling thread_local v0.3.6 [INFO] [stderr] Compiling swimmer v0.3.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:258:16 [INFO] [stdout] | [INFO] [stdout] 258 | pub fn get(&self) -> Recycled { [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] 258 | pub fn get(&self) -> Recycled<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:310:19 [INFO] [stdout] | [INFO] [stdout] 310 | pub fn attach(&self, value: T) -> Recycled { [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] 310 | pub fn attach(&self, value: T) -> Recycled<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.56s [INFO] running `Command { std: "docker" "inspect" "234e1668d7b89457fe172d89e1056e3ffcae40c83eafcd032274bcb7a65fbf62", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "234e1668d7b89457fe172d89e1056e3ffcae40c83eafcd032274bcb7a65fbf62", kill_on_drop: false }` [INFO] [stdout] 234e1668d7b89457fe172d89e1056e3ffcae40c83eafcd032274bcb7a65fbf62 [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=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] 9a5e351144ac0919ddf1437fcdd1316345f384e7a333088569b71f8f2664e04e [INFO] running `Command { std: "docker" "start" "-a" "9a5e351144ac0919ddf1437fcdd1316345f384e7a333088569b71f8f2664e04e", kill_on_drop: false }` [INFO] [stderr] Compiling quote v1.0.41 [INFO] [stderr] Compiling itertools v0.8.2 [INFO] [stderr] Compiling csv-core v0.1.12 [INFO] [stderr] Compiling cast v0.2.7 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling serde_json v1.0.145 [INFO] [stderr] Compiling rand_xoshiro v0.1.0 [INFO] [stderr] Compiling lifeguard v0.6.1 [INFO] [stderr] Compiling static_assertions v0.3.4 [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:258:16 [INFO] [stdout] | [INFO] [stdout] 258 | pub fn get(&self) -> Recycled { [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] 258 | pub fn get(&self) -> Recycled<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:310:19 [INFO] [stdout] | [INFO] [stdout] 310 | pub fn attach(&self, value: T) -> Recycled { [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] 310 | pub fn attach(&self, value: T) -> Recycled<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling csv v1.3.1 [INFO] [stderr] Compiling clap v2.34.0 [INFO] [stderr] Compiling syn v2.0.106 [INFO] [stderr] Compiling criterion-plot v0.3.1 [INFO] [stderr] Compiling tinytemplate v1.2.1 [INFO] [stderr] Compiling serde_derive v1.0.228 [INFO] [stderr] Compiling criterion v0.2.11 [INFO] [stderr] Compiling swimmer v0.3.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:258:16 [INFO] [stdout] | [INFO] [stdout] 258 | pub fn get(&self) -> Recycled { [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] 258 | pub fn get(&self) -> Recycled<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:310:19 [INFO] [stdout] | [INFO] [stdout] 310 | pub fn attach(&self, value: T) -> Recycled { [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] 310 | pub fn attach(&self, value: T) -> Recycled<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 15.11s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.2.11 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2` [INFO] running `Command { std: "docker" "inspect" "9a5e351144ac0919ddf1437fcdd1316345f384e7a333088569b71f8f2664e04e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9a5e351144ac0919ddf1437fcdd1316345f384e7a333088569b71f8f2664e04e", kill_on_drop: false }` [INFO] [stdout] 9a5e351144ac0919ddf1437fcdd1316345f384e7a333088569b71f8f2664e04e [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=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] cadba7fefb48c3e99545eebbe3cc6216d9cbc56f4261b50560610d4489d3ee84 [INFO] running `Command { std: "docker" "start" "-a" "cadba7fefb48c3e99545eebbe3cc6216d9cbc56f4261b50560610d4489d3ee84", kill_on_drop: false }` [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/lib.rs:258:16 [INFO] [stderr] | [INFO] [stderr] 258 | pub fn get(&self) -> Recycled { [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] 258 | pub fn get(&self) -> Recycled<'_, T> { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/lib.rs:310:19 [INFO] [stderr] | [INFO] [stderr] 310 | pub fn attach(&self, value: T) -> Recycled { [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] 310 | pub fn attach(&self, value: T) -> Recycled<'_, T> { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: `swimmer` (lib) generated 2 warnings (run `cargo fix --lib -p swimmer` to apply 2 suggestions) [INFO] [stderr] warning: `swimmer` (lib test) generated 2 warnings (2 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.2.11 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2` [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/swimmer-2c0442d7d92b1b04) [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test tests::test_builder ... ok [INFO] [stdout] test tests::test_supplier ... ok [INFO] [stdout] test tests::test_pool_send_and_sync ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stderr] Running tests/existing_pool.rs (/opt/rustwide/target/debug/deps/existing_pool-c3fd506d2e99a74d) [INFO] [stdout] test existing_pool_full ... ok [INFO] [stderr] Running tests/static_pool.rs (/opt/rustwide/target/debug/deps/static_pool-85594de2c60339bf) [INFO] [stdout] test existing_pool_partial ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test lazy_static_pool ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests swimmer [INFO] [stdout] [INFO] [stdout] running 10 tests [INFO] [stdout] test src/lib.rs - Pool::attach (line 295) ... ok [INFO] [stdout] test src/lib.rs - Pool::size (line 274) ... ok [INFO] [stdout] test src/lib.rs - Pool::new (line 218) ... ok [INFO] [stdout] test src/lib.rs - Pool::detached (line 324) ... ok [INFO] [stdout] test src/lib.rs - (line 69) ... ok [INFO] [stdout] test src/lib.rs - Pool::get (line 251) ... ok [INFO] [stdout] test src/lib.rs - Pool::with_size (line 235) ... ok [INFO] [stdout] test src/lib.rs - (line 128) ... ok [INFO] [stdout] test src/lib.rs - (line 92) ... ok [INFO] [stdout] test src/lib.rs - (line 168) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.94s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "cadba7fefb48c3e99545eebbe3cc6216d9cbc56f4261b50560610d4489d3ee84", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cadba7fefb48c3e99545eebbe3cc6216d9cbc56f4261b50560610d4489d3ee84", kill_on_drop: false }` [INFO] [stdout] cadba7fefb48c3e99545eebbe3cc6216d9cbc56f4261b50560610d4489d3ee84