[INFO] fetching crate metrics-recorder-prometheus 0.2.3...
[INFO] checking metrics-recorder-prometheus-0.2.3 against try#b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8 for pr-78363
[INFO] extracting crate metrics-recorder-prometheus 0.2.3 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate metrics-recorder-prometheus 0.2.3 on toolchain b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate metrics-recorder-prometheus 0.2.3
[INFO] finished tweaking crates.io crate metrics-recorder-prometheus 0.2.3
[INFO] tweaked toml for crates.io crate metrics-recorder-prometheus 0.2.3 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 22e4e573f41b33c3ac98b67bbfaa9866d814d891be01639a269803395730b59d
[INFO] running `Command { std: "docker" "start" "-a" "22e4e573f41b33c3ac98b67bbfaa9866d814d891be01639a269803395730b59d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "22e4e573f41b33c3ac98b67bbfaa9866d814d891be01639a269803395730b59d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22e4e573f41b33c3ac98b67bbfaa9866d814d891be01639a269803395730b59d", kill_on_drop: false }`
[INFO] [stdout] 22e4e573f41b33c3ac98b67bbfaa9866d814d891be01639a269803395730b59d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8962ae320e7a35e73ce3166c05890e642b01426562191a67d5289a46562f74c6
[INFO] running `Command { std: "docker" "start" "-a" "8962ae320e7a35e73ce3166c05890e642b01426562191a67d5289a46562f74c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]     Checking metrics-core v0.4.0
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking flate2 v1.0.18
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking metrics-util v0.2.1
[INFO] [stderr]     Checking hdrhistogram v6.3.4
[INFO] [stderr]     Checking metrics-recorder-prometheus v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.21s
[INFO] running `Command { std: "docker" "inspect" "8962ae320e7a35e73ce3166c05890e642b01426562191a67d5289a46562f74c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8962ae320e7a35e73ce3166c05890e642b01426562191a67d5289a46562f74c6", kill_on_drop: false }`
[INFO] [stdout] 8962ae320e7a35e73ce3166c05890e642b01426562191a67d5289a46562f74c6