[INFO] fetching crate metrics-prometheus-client 0.0.1...
[INFO] checking metrics-prometheus-client-0.0.1 against try#b047d5f4496a7526d91d0dddea494c05853f2a7b for pr-122661-1
[INFO] extracting crate metrics-prometheus-client 0.0.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate metrics-prometheus-client 0.0.1
[INFO] finished tweaking crates.io crate metrics-prometheus-client 0.0.1
[INFO] tweaked toml for crates.io crate metrics-prometheus-client 0.0.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate metrics-prometheus-client 0.0.1 on toolchain b047d5f4496a7526d91d0dddea494c05853f2a7b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 34 packages to latest compatible versions
[INFO] [stderr]       Adding metrics v0.23.1 (available: v0.24.2)
[INFO] [stderr]       Adding prometheus-client v0.22.3 (available: v0.23.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5a750edef250e484ff415020cce6f49f701a7d0b9af4f64214f6df7cd9e0625d
[INFO] running `Command { std: "docker" "start" "-a" "5a750edef250e484ff415020cce6f49f701a7d0b9af4f64214f6df7cd9e0625d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a750edef250e484ff415020cce6f49f701a7d0b9af4f64214f6df7cd9e0625d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a750edef250e484ff415020cce6f49f701a7d0b9af4f64214f6df7cd9e0625d", kill_on_drop: false }`
[INFO] [stdout] 5a750edef250e484ff415020cce6f49f701a7d0b9af4f64214f6df7cd9e0625d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3675dba246eb398ef09bc8f86ff262755714fe6103ce1bc793b3389af688a1d
[INFO] running `Command { std: "docker" "start" "-a" "d3675dba246eb398ef09bc8f86ff262755714fe6103ce1bc793b3389af688a1d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]     Checking cfg-if v1.0.1
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling zerocopy v0.8.26
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling prometheus-client v0.22.3
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]     Checking dtoa v1.0.10
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]     Checking metrics v0.23.1
[INFO] [stderr]    Compiling prometheus-client-derive-encode v0.4.2
[INFO] [stderr]     Checking metrics-prometheus-client v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.06s
[INFO] running `Command { std: "docker" "inspect" "d3675dba246eb398ef09bc8f86ff262755714fe6103ce1bc793b3389af688a1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3675dba246eb398ef09bc8f86ff262755714fe6103ce1bc793b3389af688a1d", kill_on_drop: false }`
[INFO] [stdout] d3675dba246eb398ef09bc8f86ff262755714fe6103ce1bc793b3389af688a1d