[INFO] fetching crate prometheus-reqwest-remote-write 0.4.0...
[INFO] testing prometheus-reqwest-remote-write-0.4.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate prometheus-reqwest-remote-write 0.4.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate prometheus-reqwest-remote-write 0.4.0
[INFO] finished tweaking crates.io crate prometheus-reqwest-remote-write 0.4.0
[INFO] tweaked toml for crates.io crate prometheus-reqwest-remote-write 0.4.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate prometheus-reqwest-remote-write 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] crate crates.io crate prometheus-reqwest-remote-write 0.4.0 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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] c4bff149344f2d36db64e9df92a437e797d5909c0e26ffc29fdf7adcf8ca9378
[INFO] running `Command { std: "docker" "start" "-a" "c4bff149344f2d36db64e9df92a437e797d5909c0e26ffc29fdf7adcf8ca9378", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c4bff149344f2d36db64e9df92a437e797d5909c0e26ffc29fdf7adcf8ca9378", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4bff149344f2d36db64e9df92a437e797d5909c0e26ffc29fdf7adcf8ca9378", kill_on_drop: false }`
[INFO] [stdout] c4bff149344f2d36db64e9df92a437e797d5909c0e26ffc29fdf7adcf8ca9378
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] b4d98e9255baac7ec01cdb7160ae08240e442c2e91b02e70149b19f82fbb21b3
[INFO] running `Command { std: "docker" "start" "-a" "b4d98e9255baac7ec01cdb7160ae08240e442c2e91b02e70149b19f82fbb21b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling bytes v1.7.2
[INFO] [stderr]    Compiling once_cell v1.20.2
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling rustls-pki-types v1.10.0
[INFO] [stderr]    Compiling cc v1.1.30
[INFO] [stderr]    Compiling httparse v1.9.5
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]    Compiling rustls v0.23.14
[INFO] [stderr]    Compiling socket2 v0.5.10
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling thiserror v1.0.64
[INFO] [stderr]    Compiling anyhow v1.0.89
[INFO] [stderr]    Compiling unicode-normalization v0.1.24
[INFO] [stderr]    Compiling sync_wrapper v1.0.1
[INFO] [stderr]    Compiling unicode-bidi v0.3.17
[INFO] [stderr]    Compiling serde_json v1.0.128
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling tracing-core v0.1.33
[INFO] [stderr]    Compiling ipnet v2.10.1
[INFO] [stderr]    Compiling protobuf v3.7.2
[INFO] [stderr]    Compiling either v1.13.0
[INFO] [stderr]    Compiling webpki-roots v0.26.8
[INFO] [stderr]    Compiling http v1.1.0
[INFO] [stderr]    Compiling tokio v1.40.0
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling snap v1.1.1
[INFO] [stderr]    Compiling bitflags v2.6.0
[INFO] [stderr]    Compiling prometheus v0.14.0
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling idna v0.5.0
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling webpki-roots v1.0.0
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling ring v0.17.8
[INFO] [stderr]    Compiling http-body v1.0.1
[INFO] [stderr]    Compiling url v2.5.2
[INFO] [stderr]    Compiling http-body-util v0.1.2
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling hyper v1.6.0
[INFO] [stderr]    Compiling tower v0.5.2
[INFO] [stderr]    Compiling tower-http v0.6.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.64
[INFO] [stderr]    Compiling tracing-attributes v0.1.28
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling prost-derive v0.13.5
[INFO] [stderr]    Compiling rustls-webpki v0.102.8
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling protobuf-support v3.7.2
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling hyper-util v0.1.13
[INFO] [stderr]    Compiling prost v0.13.5
[INFO] [stderr]    Compiling tokio-rustls v0.26.0
[INFO] [stderr]    Compiling hyper-rustls v0.27.3
[INFO] [stderr]    Compiling reqwest v0.12.19
[INFO] [stderr]    Compiling prometheus-reqwest-remote-write v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 29.30s
[INFO] running `Command { std: "docker" "inspect" "b4d98e9255baac7ec01cdb7160ae08240e442c2e91b02e70149b19f82fbb21b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4d98e9255baac7ec01cdb7160ae08240e442c2e91b02e70149b19f82fbb21b3", kill_on_drop: false }`
[INFO] [stdout] b4d98e9255baac7ec01cdb7160ae08240e442c2e91b02e70149b19f82fbb21b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 2fa6ec41186be7b7081e18f034d9d76b8cbe5e09c6e2f39005d3935b3a529778
[INFO] running `Command { std: "docker" "start" "-a" "2fa6ec41186be7b7081e18f034d9d76b8cbe5e09c6e2f39005d3935b3a529778", kill_on_drop: false }`
[INFO] [stderr]    Compiling yansi v1.0.1
[INFO] [stderr]    Compiling diff v0.1.13
[INFO] [stderr]    Compiling pretty_assertions v1.4.1
[INFO] [stderr]    Compiling prometheus-reqwest-remote-write v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.28s
[INFO] running `Command { std: "docker" "inspect" "2fa6ec41186be7b7081e18f034d9d76b8cbe5e09c6e2f39005d3935b3a529778", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fa6ec41186be7b7081e18f034d9d76b8cbe5e09c6e2f39005d3935b3a529778", kill_on_drop: false }`
[INFO] [stdout] 2fa6ec41186be7b7081e18f034d9d76b8cbe5e09c6e2f39005d3935b3a529778
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] ac97bf7c28e9b77446aa799d3ff99a1173eb6895efdf03ae38b349068f445bc9
[INFO] running `Command { std: "docker" "start" "-a" "ac97bf7c28e9b77446aa799d3ff99a1173eb6895efdf03ae38b349068f445bc9", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/prometheus_reqwest_remote_write-16fc70b2478e165c)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::can_encode_histogram ... ok
[INFO] [stdout] test tests::can_encode_gauge ... ok
[INFO] [stdout] test tests::can_add_custom_labels ... ok
[INFO] [stdout] test tests::can_encode_counter ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests prometheus_reqwest_remote_write
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[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] running `Command { std: "docker" "inspect" "ac97bf7c28e9b77446aa799d3ff99a1173eb6895efdf03ae38b349068f445bc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac97bf7c28e9b77446aa799d3ff99a1173eb6895efdf03ae38b349068f445bc9", kill_on_drop: false }`
[INFO] [stdout] ac97bf7c28e9b77446aa799d3ff99a1173eb6895efdf03ae38b349068f445bc9