[INFO] fetching crate metrics-observer 0.5.0...
[INFO] building metrics-observer-0.5.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate metrics-observer 0.5.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate metrics-observer 0.5.0
[INFO] finished tweaking crates.io crate metrics-observer 0.5.0
[INFO] tweaked toml for crates.io crate metrics-observer 0.5.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate metrics-observer 0.5.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate metrics-observer 0.5.0 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 79ac24eb0cdf9e0ce6dd3627e790a2a5901ddcd30abaa715d9f5ebc1fc83750e
[INFO] running `Command { std: "docker" "start" "-a" "79ac24eb0cdf9e0ce6dd3627e790a2a5901ddcd30abaa715d9f5ebc1fc83750e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79ac24eb0cdf9e0ce6dd3627e790a2a5901ddcd30abaa715d9f5ebc1fc83750e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79ac24eb0cdf9e0ce6dd3627e790a2a5901ddcd30abaa715d9f5ebc1fc83750e", kill_on_drop: false }`
[INFO] [stdout] 79ac24eb0cdf9e0ce6dd3627e790a2a5901ddcd30abaa715d9f5ebc1fc83750e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd8ab1b14ab0bef27a50739cfce93a6db6e40d740a5e52e2f853335bfc5eca6e
[INFO] running `Command { std: "docker" "start" "-a" "bd8ab1b14ab0bef27a50739cfce93a6db6e40d740a5e52e2f853335bfc5eca6e", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling equivalent v1.0.2
[INFO] [stderr]    Compiling anyhow v1.0.97
[INFO] [stderr]    Compiling bitflags v2.9.0
[INFO] [stderr]    Compiling getrandom v0.3.1
[INFO] [stderr]    Compiling log v0.4.26
[INFO] [stderr]    Compiling rustversion v1.0.20
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]    Compiling zerocopy v0.8.23
[INFO] [stderr]    Compiling rustix v1.0.2
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling linux-raw-sys v0.9.3
[INFO] [stderr]    Compiling hashbrown v0.15.2
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling bytes v1.10.1
[INFO] [stderr]    Compiling indexmap v2.8.0
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]    Compiling smallvec v1.14.0
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling fixedbitset v0.5.7
[INFO] [stderr]    Compiling once_cell v1.21.1
[INFO] [stderr]    Compiling petgraph v0.7.1
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling mio v1.0.3
[INFO] [stderr]    Compiling tempfile v3.19.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling allocator-api2 v0.2.21
[INFO] [stderr]    Compiling linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling foldhash v0.1.5
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling multimap v0.10.0
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling signal-hook-mio v0.2.4
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling castaway v0.2.3
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling unicode-width v0.1.14
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling itoa v1.0.15
[INFO] [stderr]    Compiling ryu v1.0.20
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]    Compiling indoc v2.0.6
[INFO] [stderr]    Compiling compact_str v0.8.1
[INFO] [stderr]    Compiling crossterm v0.28.1
[INFO] [stderr]    Compiling darling_core v0.20.10
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling lru v0.12.5
[INFO] [stderr]    Compiling rand v0.9.0
[INFO] [stderr]    Compiling metrics v0.24.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling unicode-truncate v1.1.0
[INFO] [stderr]    Compiling rand_xoshiro v0.7.0
[INFO] [stderr]    Compiling cassowary v0.3.0
[INFO] [stderr]    Compiling iana-time-zone v0.1.61
[INFO] [stderr]    Compiling sketches-ddsketch v0.3.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.14
[INFO] [stderr]    Compiling prost-derive v0.13.5
[INFO] [stderr]    Compiling strum_macros v0.26.4
[INFO] [stderr]    Compiling metrics-util v0.19.1
[INFO] [stderr]    Compiling chrono v0.4.40
[INFO] [stderr]    Compiling darling_macro v0.20.10
[INFO] [stderr]    Compiling darling v0.20.10
[INFO] [stderr]    Compiling instability v0.3.7
[INFO] [stderr]    Compiling prost v0.13.5
[INFO] [stderr]    Compiling strum v0.26.3
[INFO] [stderr]    Compiling prost-types v0.13.5
[INFO] [stderr]    Compiling ratatui v0.28.1
[INFO] [stderr]    Compiling prost-build v0.13.5
[INFO] [stderr]    Compiling metrics-observer v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 14s
[INFO] running `Command { std: "docker" "inspect" "bd8ab1b14ab0bef27a50739cfce93a6db6e40d740a5e52e2f853335bfc5eca6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd8ab1b14ab0bef27a50739cfce93a6db6e40d740a5e52e2f853335bfc5eca6e", kill_on_drop: false }`
[INFO] [stdout] bd8ab1b14ab0bef27a50739cfce93a6db6e40d740a5e52e2f853335bfc5eca6e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 95d5ddeb0791c11db724d333596c73bac881ea26116c81ff71542eebe89131f5
[INFO] running `Command { std: "docker" "start" "-a" "95d5ddeb0791c11db724d333596c73bac881ea26116c81ff71542eebe89131f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling metrics-observer v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "95d5ddeb0791c11db724d333596c73bac881ea26116c81ff71542eebe89131f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95d5ddeb0791c11db724d333596c73bac881ea26116c81ff71542eebe89131f5", kill_on_drop: false }`
[INFO] [stdout] 95d5ddeb0791c11db724d333596c73bac881ea26116c81ff71542eebe89131f5