[INFO] cloning repository https://github.com/brettman/blockchain-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/brettman/blockchain-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrettman%2Fblockchain-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrettman%2Fblockchain-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b80b8f44f02fe08ae6fc1f30f176235346131d6b
[INFO] checking brettman/blockchain-rust against master#73252d51d13c0e4f872c3c51defcf48174860ef6 for pr-119989
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrettman%2Fblockchain-rust" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/brettman/blockchain-rust on toolchain 73252d51d13c0e4f872c3c51defcf48174860ef6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+73252d51d13c0e4f872c3c51defcf48174860ef6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/brettman/blockchain-rust
[INFO] finished tweaking git repo https://github.com/brettman/blockchain-rust
[INFO] tweaked toml for git repo https://github.com/brettman/blockchain-rust written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/brettman/blockchain-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+73252d51d13c0e4f872c3c51defcf48174860ef6" "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 brettman/blockchain-rust against try#5d004039df46bb665b8ed6385386e3b1b007a6a8 for pr-119989
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrettman%2Fblockchain-rust" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/brettman/blockchain-rust on toolchain 5d004039df46bb665b8ed6385386e3b1b007a6a8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5d004039df46bb665b8ed6385386e3b1b007a6a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/brettman/blockchain-rust
[INFO] finished tweaking git repo https://github.com/brettman/blockchain-rust
[INFO] tweaked toml for git repo https://github.com/brettman/blockchain-rust written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/brettman/blockchain-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5d004039df46bb665b8ed6385386e3b1b007a6a8" "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" "+5d004039df46bb665b8ed6385386e3b1b007a6a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3fe65916b0ab8c0498060fd815060c7feabea0ce9839514d0c3c8e47a984d58d
[INFO] running `Command { std: "docker" "start" "-a" "3fe65916b0ab8c0498060fd815060c7feabea0ce9839514d0c3c8e47a984d58d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3fe65916b0ab8c0498060fd815060c7feabea0ce9839514d0c3c8e47a984d58d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fe65916b0ab8c0498060fd815060c7feabea0ce9839514d0c3c8e47a984d58d", kill_on_drop: false }`
[INFO] [stdout] 3fe65916b0ab8c0498060fd815060c7feabea0ce9839514d0c3c8e47a984d58d
[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" "+5d004039df46bb665b8ed6385386e3b1b007a6a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93f00af5b347d0e31d643bf24ab64a0e3d3f727579526a964a2283f0e269305e
[INFO] running `Command { std: "docker" "start" "-a" "93f00af5b347d0e31d643bf24ab64a0e3d3f727579526a964a2283f0e269305e", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]     Checking crypto-hash v0.3.4
[INFO] [stderr]     Checking blockchain-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.26s
[INFO] running `Command { std: "docker" "inspect" "93f00af5b347d0e31d643bf24ab64a0e3d3f727579526a964a2283f0e269305e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93f00af5b347d0e31d643bf24ab64a0e3d3f727579526a964a2283f0e269305e", kill_on_drop: false }`
[INFO] [stdout] 93f00af5b347d0e31d643bf24ab64a0e3d3f727579526a964a2283f0e269305e