[INFO] fetching crate metrics-macros 0.7.0...
[INFO] checking metrics-macros-0.7.0 against master#1280928a99ad3ef2c5735b42dc8852456ae3b974 for pr-120798
[INFO] extracting crate metrics-macros 0.7.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate metrics-macros 0.7.0 on toolchain 1280928a99ad3ef2c5735b42dc8852456ae3b974
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1280928a99ad3ef2c5735b42dc8852456ae3b974" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate metrics-macros 0.7.0
[INFO] finished tweaking crates.io crate metrics-macros 0.7.0
[INFO] tweaked toml for crates.io crate metrics-macros 0.7.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1280928a99ad3ef2c5735b42dc8852456ae3b974" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1280928a99ad3ef2c5735b42dc8852456ae3b974" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking metrics-macros-0.7.0 against try#9b9e20bc79549d80ab413f49d990713851172cc1 for pr-120798
[INFO] extracting crate metrics-macros 0.7.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate metrics-macros 0.7.0 on toolchain 9b9e20bc79549d80ab413f49d990713851172cc1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9b9e20bc79549d80ab413f49d990713851172cc1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate metrics-macros 0.7.0
[INFO] finished tweaking crates.io crate metrics-macros 0.7.0
[INFO] tweaked toml for crates.io crate metrics-macros 0.7.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9b9e20bc79549d80ab413f49d990713851172cc1" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9b9e20bc79549d80ab413f49d990713851172cc1" "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-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+9b9e20bc79549d80ab413f49d990713851172cc1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b1e5a472baa4c198eeb56a1cd266f0f152e7ccdfda6351d831c2ebff05359c4
[INFO] running `Command { std: "docker" "start" "-a" "0b1e5a472baa4c198eeb56a1cd266f0f152e7ccdfda6351d831c2ebff05359c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b1e5a472baa4c198eeb56a1cd266f0f152e7ccdfda6351d831c2ebff05359c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b1e5a472baa4c198eeb56a1cd266f0f152e7ccdfda6351d831c2ebff05359c4", kill_on_drop: false }`
[INFO] [stdout] 0b1e5a472baa4c198eeb56a1cd266f0f152e7ccdfda6351d831c2ebff05359c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+9b9e20bc79549d80ab413f49d990713851172cc1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca8dcf0bc320e7b4d5b7417de132f58dc5a931347a618532ba06ee2f29ac2b97
[INFO] running `Command { std: "docker" "start" "-a" "ca8dcf0bc320e7b4d5b7417de132f58dc5a931347a618532ba06ee2f29ac2b97", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]     Checking proc-macro2 v1.0.78
[INFO] [stderr]     Checking quote v1.0.35
[INFO] [stderr]     Checking syn v2.0.48
[INFO] [stderr]     Checking metrics-macros v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.55s
[INFO] running `Command { std: "docker" "inspect" "ca8dcf0bc320e7b4d5b7417de132f58dc5a931347a618532ba06ee2f29ac2b97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca8dcf0bc320e7b4d5b7417de132f58dc5a931347a618532ba06ee2f29ac2b97", kill_on_drop: false }`
[INFO] [stdout] ca8dcf0bc320e7b4d5b7417de132f58dc5a931347a618532ba06ee2f29ac2b97