[INFO] cloning repository https://github.com/RohanGautam/prometheus-rust-latency-collection
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RohanGautam/prometheus-rust-latency-collection" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRohanGautam%2Fprometheus-rust-latency-collection", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRohanGautam%2Fprometheus-rust-latency-collection'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d52d9bf2f17234f2df5b6728cd65f1be3d36dcd7
[INFO] checking RohanGautam/prometheus-rust-latency-collection against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRohanGautam%2Fprometheus-rust-latency-collection" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RohanGautam/prometheus-rust-latency-collection on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/RohanGautam/prometheus-rust-latency-collection
[INFO] finished tweaking git repo https://github.com/RohanGautam/prometheus-rust-latency-collection
[INFO] tweaked toml for git repo https://github.com/RohanGautam/prometheus-rust-latency-collection written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/RohanGautam/prometheus-rust-latency-collection already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9ddc6882e92220f95057d2a0320f8c4541c87323a6bbc4bdc6cf2bb6ca96216d
[INFO] running `Command { std: "docker" "start" "-a" "9ddc6882e92220f95057d2a0320f8c4541c87323a6bbc4bdc6cf2bb6ca96216d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ddc6882e92220f95057d2a0320f8c4541c87323a6bbc4bdc6cf2bb6ca96216d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ddc6882e92220f95057d2a0320f8c4541c87323a6bbc4bdc6cf2bb6ca96216d", kill_on_drop: false }`
[INFO] [stdout] 9ddc6882e92220f95057d2a0320f8c4541c87323a6bbc4bdc6cf2bb6ca96216d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c56c2e6e370f0a798d184c3777b7af6cd974e198793a61ab068da2176951700
[INFO] running `Command { std: "docker" "start" "-a" "4c56c2e6e370f0a798d184c3777b7af6cd974e198793a61ab068da2176951700", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking libflate_lz77 v1.0.0
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[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]    Compiling protobuf v2.22.0
[INFO] [stderr]     Checking utf-8 v0.7.5
[INFO] [stderr]     Checking httpdate v0.3.2
[INFO] [stderr]    Compiling prometheus v0.9.0
[INFO] [stderr]     Checking dtoa v0.4.7
[INFO] [stderr]     Checking futures-io v0.3.12
[INFO] [stderr]     Checking hex v0.4.2
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[INFO] [stderr]     Checking urlencoding v1.1.1
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking input_buffer v0.3.1
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[INFO] [stderr]     Checking futures-task v0.3.12
[INFO] [stderr]     Checking libflate v1.0.3
[INFO] [stderr]     Checking rand_core v0.6.1
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking headers v0.3.3
[INFO] [stderr]     Checking futures-util v0.3.12
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking idna v0.2.1
[INFO] [stderr]     Checking procfs v0.7.9
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking url v2.2.0
[INFO] [stderr]     Checking multipart v0.17.1
[INFO] [stderr]     Checking tungstenite v0.11.1
[INFO] [stderr]     Checking futures v0.3.12
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking serde_json v1.0.62
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling pin-project-internal v1.0.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]     Checking thiserror v1.0.23
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]     Checking pin-project v1.0.5
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tungstenite v0.11.0
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking hyper v0.13.10
[INFO] [stderr]     Checking warp v0.2.5
[INFO] [stderr]     Checking prometheus-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.61s
[INFO] running `Command { std: "docker" "inspect" "4c56c2e6e370f0a798d184c3777b7af6cd974e198793a61ab068da2176951700", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c56c2e6e370f0a798d184c3777b7af6cd974e198793a61ab068da2176951700", kill_on_drop: false }`
[INFO] [stdout] 4c56c2e6e370f0a798d184c3777b7af6cd974e198793a61ab068da2176951700