[INFO] fetching crate warp-prometheus 0.4.0...
[INFO] checking warp-prometheus-0.4.0 against try#3bb2879ea9e58d65b875f9a98df44f4a43ce2597 for pr-85387
[INFO] extracting crate warp-prometheus 0.4.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate warp-prometheus 0.4.0 on toolchain 3bb2879ea9e58d65b875f9a98df44f4a43ce2597
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate warp-prometheus 0.4.0
[INFO] finished tweaking crates.io crate warp-prometheus 0.4.0
[INFO] tweaked toml for crates.io crate warp-prometheus 0.4.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ea4b161a8604fbe907cbf99f7b99cf56024999d5773ab85442c8014e83a45aae
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ea4b161a8604fbe907cbf99f7b99cf56024999d5773ab85442c8014e83a45aae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea4b161a8604fbe907cbf99f7b99cf56024999d5773ab85442c8014e83a45aae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea4b161a8604fbe907cbf99f7b99cf56024999d5773ab85442c8014e83a45aae", kill_on_drop: false }`
[INFO] [stdout] ea4b161a8604fbe907cbf99f7b99cf56024999d5773ab85442c8014e83a45aae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b4d2cc7be51ab6f48ffc1238f40b0a07e1908dc35cc62d0a1ef2f9ca8b8ddda
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2b4d2cc7be51ab6f48ffc1238f40b0a07e1908dc35cc62d0a1ef2f9ca8b8ddda", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling protobuf v2.23.0
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling prometheus v0.12.0
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]    Compiling tokio v1.6.1
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking headers v0.3.4
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]     Checking buf_redux v0.8.4
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking multipart v0.17.1
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking thiserror v1.0.25
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking futures v0.3.15
[INFO] [stderr]     Checking tungstenite v0.12.0
[INFO] [stderr]     Checking tokio-util v0.6.7
[INFO] [stderr]     Checking tokio-tungstenite v0.13.0
[INFO] [stderr]     Checking tokio-stream v0.1.6
[INFO] [stderr]     Checking h2 v0.3.3
[INFO] [stderr]     Checking hyper v0.14.8
[INFO] [stderr]     Checking warp v0.3.1
[INFO] [stderr]     Checking warp-prometheus v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.52s
[INFO] running `Command { std: "docker" "inspect" "2b4d2cc7be51ab6f48ffc1238f40b0a07e1908dc35cc62d0a1ef2f9ca8b8ddda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b4d2cc7be51ab6f48ffc1238f40b0a07e1908dc35cc62d0a1ef2f9ca8b8ddda", kill_on_drop: false }`
[INFO] [stdout] 2b4d2cc7be51ab6f48ffc1238f40b0a07e1908dc35cc62d0a1ef2f9ca8b8ddda