[INFO] fetching crate metrics_printer 0.2.0...
[INFO] testing metrics_printer-0.2.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate metrics_printer 0.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate metrics_printer 0.2.0
[INFO] finished tweaking crates.io crate metrics_printer 0.2.0
[INFO] tweaked toml for crates.io crate metrics_printer 0.2.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate metrics_printer 0.2.0 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] crate crates.io crate metrics_printer 0.2.0 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" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd0f7f73ce06797a9a05c74208ac7e73683c3cb44e59d45303fe251a51086957
[INFO] running `Command { std: "docker" "start" "-a" "cd0f7f73ce06797a9a05c74208ac7e73683c3cb44e59d45303fe251a51086957", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd0f7f73ce06797a9a05c74208ac7e73683c3cb44e59d45303fe251a51086957", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd0f7f73ce06797a9a05c74208ac7e73683c3cb44e59d45303fe251a51086957", kill_on_drop: false }`
[INFO] [stdout] cd0f7f73ce06797a9a05c74208ac7e73683c3cb44e59d45303fe251a51086957
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5855884a9180b50f7f253cbc43d940bcb4213a6410c16a7f8f73389e54ad645
[INFO] running `Command { std: "docker" "start" "-a" "a5855884a9180b50f7f253cbc43d940bcb4213a6410c16a7f8f73389e54ad645", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.16
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling once_cell v1.20.2
[INFO] [stderr]    Compiling foldhash v0.1.4
[INFO] [stderr]    Compiling bitflags v2.8.0
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling endian-type v0.1.2
[INFO] [stderr]    Compiling sketches-ddsketch v0.3.0
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling hashbrown v0.15.2
[INFO] [stderr]    Compiling raw-cpuid v11.3.0
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling nibble_vec v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling radix_trie v0.2.1
[INFO] [stderr]    Compiling indexmap v2.7.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling ordered-float v4.6.0
[INFO] [stderr]    Compiling rand_xoshiro v0.6.0
[INFO] [stderr]    Compiling quanta v0.12.5
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling ppv-lite86 v0.2.20
[INFO] [stderr]    Compiling metrics v0.24.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling metrics-util v0.19.0
[INFO] [stderr]    Compiling metrics_printer v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.04s
[INFO] running `Command { std: "docker" "inspect" "a5855884a9180b50f7f253cbc43d940bcb4213a6410c16a7f8f73389e54ad645", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5855884a9180b50f7f253cbc43d940bcb4213a6410c16a7f8f73389e54ad645", kill_on_drop: false }`
[INFO] [stdout] a5855884a9180b50f7f253cbc43d940bcb4213a6410c16a7f8f73389e54ad645
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f0267925255e09f9560185588fe152876598cbec9ad35fcb9465ff74bfdd2c3
[INFO] running `Command { std: "docker" "start" "-a" "8f0267925255e09f9560185588fe152876598cbec9ad35fcb9465ff74bfdd2c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling metrics_printer v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.18s
[INFO] running `Command { std: "docker" "inspect" "8f0267925255e09f9560185588fe152876598cbec9ad35fcb9465ff74bfdd2c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f0267925255e09f9560185588fe152876598cbec9ad35fcb9465ff74bfdd2c3", kill_on_drop: false }`
[INFO] [stdout] 8f0267925255e09f9560185588fe152876598cbec9ad35fcb9465ff74bfdd2c3
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b95153cd177c43ce2ad9aacac10428117252526131997dde63d475cacb3a129e
[INFO] running `Command { std: "docker" "start" "-a" "b95153cd177c43ce2ad9aacac10428117252526131997dde63d475cacb3a129e", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/metrics_printer-839143cfba51a180)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::not_a_real_test ... ok
[INFO] [stderr]    Doc-tests metrics_printer
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 5.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 11) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.88s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b95153cd177c43ce2ad9aacac10428117252526131997dde63d475cacb3a129e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b95153cd177c43ce2ad9aacac10428117252526131997dde63d475cacb3a129e", kill_on_drop: false }`
[INFO] [stdout] b95153cd177c43ce2ad9aacac10428117252526131997dde63d475cacb3a129e