[INFO] fetching crate metricus 0.0.14...
[INFO] testing metricus-0.0.14 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate metricus 0.0.14 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate metricus 0.0.14
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate metricus 0.0.14
[INFO] tweaked toml for crates.io crate metricus 0.0.14 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate metricus 0.0.14 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] crate crates.io crate metricus 0.0.14 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" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] b576776ff91e9e89ea300535b0f4d197f42f0fdeb47170f53c82a1367b441fef
[INFO] running `Command { std: "docker" "start" "-a" "b576776ff91e9e89ea300535b0f4d197f42f0fdeb47170f53c82a1367b441fef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b576776ff91e9e89ea300535b0f4d197f42f0fdeb47170f53c82a1367b441fef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b576776ff91e9e89ea300535b0f4d197f42f0fdeb47170f53c82a1367b441fef", kill_on_drop: false }`
[INFO] [stdout] b576776ff91e9e89ea300535b0f4d197f42f0fdeb47170f53c82a1367b441fef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] d8a2045020e54593edeaf5d5f2dc8effc9ba759b52ac856cc8c982d897249976
[INFO] running `Command { std: "docker" "start" "-a" "d8a2045020e54593edeaf5d5f2dc8effc9ba759b52ac856cc8c982d897249976", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]    Compiling darling_core v0.20.10
[INFO] [stderr]    Compiling serde_derive v1.0.217
[INFO] [stderr]    Compiling darling_macro v0.20.10
[INFO] [stderr]    Compiling darling v0.20.10
[INFO] [stderr]    Compiling serde_with_macros v3.12.0
[INFO] [stderr]    Compiling serde_with v3.12.0
[INFO] [stderr]    Compiling metricus v0.0.14 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.73s
[INFO] running `Command { std: "docker" "inspect" "d8a2045020e54593edeaf5d5f2dc8effc9ba759b52ac856cc8c982d897249976", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8a2045020e54593edeaf5d5f2dc8effc9ba759b52ac856cc8c982d897249976", kill_on_drop: false }`
[INFO] [stdout] d8a2045020e54593edeaf5d5f2dc8effc9ba759b52ac856cc8c982d897249976
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 2520310900c6e98c702b93d9cfb39e37b85c73b5ebab2fd128d73bb16532ea44
[INFO] running `Command { std: "docker" "start" "-a" "2520310900c6e98c702b93d9cfb39e37b85c73b5ebab2fd128d73bb16532ea44", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.137
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling clap_lex v0.7.4
[INFO] [stderr]    Compiling anstyle v1.0.10
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling half v2.4.1
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling oorandom v11.1.4
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling anes v0.1.6
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling clap_builder v4.5.26
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling is-terminal v0.4.13
[INFO] [stderr]    Compiling criterion-plot v0.5.0
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling clap v4.5.26
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling criterion v0.5.1
[INFO] [stderr]    Compiling metricus_macros v0.0.14
[INFO] [stderr]    Compiling metricus v0.0.14 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 17.31s
[INFO] running `Command { std: "docker" "inspect" "2520310900c6e98c702b93d9cfb39e37b85c73b5ebab2fd128d73bb16532ea44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2520310900c6e98c702b93d9cfb39e37b85c73b5ebab2fd128d73bb16532ea44", kill_on_drop: false }`
[INFO] [stdout] 2520310900c6e98c702b93d9cfb39e37b85c73b5ebab2fd128d73bb16532ea44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 4c80ddee11dfd4a8f6e7ce566c4a95fdc3c58060d60d5ad4f2eec06d86e52c38
[INFO] running `Command { std: "docker" "start" "-a" "4c80ddee11dfd4a8f6e7ce566c4a95fdc3c58060d60d5ad4f2eec06d86e52c38", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/metricus-4bf15b484111263f)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests metricus
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test src/counter.rs - counter::Counter (line 29) - compile ... ok
[INFO] [stdout] test src/counter.rs - counter::Counter (line 16) - compile ... ok
[INFO] [stdout] test src/counter.rs - counter::Counter::new_with_id (line 75) - compile ... ok
[INFO] [stdout] test src/counter.rs - counter::Counter::new (line 50) - compile ... ok
[INFO] [stdout] test src/counter.rs - counter::Counter::new (line 58) - compile ... ok
[INFO] [stdout] test src/counter.rs - counter::CounterOps::increment (line 97) - compile ... ok
[INFO] [stdout] test src/histogram.rs - histogram::Histogram (line 20) - compile ... ok
[INFO] [stdout] test src/histogram.rs - histogram::Histogram::new (line 67) - compile ... ok
[INFO] [stdout] test src/histogram.rs - histogram::Histogram (line 33) - compile ... ok
[INFO] [stdout] test src/histogram.rs - histogram::HistogramOps::record (line 87) - compile ... ok
[INFO] [stdout] test src/histogram.rs - histogram::HistogramOps::with_span (line 115) - compile ... ok
[INFO] [stdout] test src/histogram.rs - histogram::HistogramOps::span (line 99) - compile ... ok
[INFO] [stdout] test src/counter.rs - counter::CounterOps::increment_by (line 109) ... ok
[INFO] [stdout] test src/histogram.rs - histogram::Histogram::new (line 59) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.56s; merged doctests compilation took 0.55s
[INFO] running `Command { std: "docker" "inspect" "4c80ddee11dfd4a8f6e7ce566c4a95fdc3c58060d60d5ad4f2eec06d86e52c38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c80ddee11dfd4a8f6e7ce566c4a95fdc3c58060d60d5ad4f2eec06d86e52c38", kill_on_drop: false }`
[INFO] [stdout] 4c80ddee11dfd4a8f6e7ce566c4a95fdc3c58060d60d5ad4f2eec06d86e52c38