[INFO] cloning repository https://github.com/marchellodev/kse_comms_n_networking_t2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/marchellodev/kse_comms_n_networking_t2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarchellodev%2Fkse_comms_n_networking_t2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarchellodev%2Fkse_comms_n_networking_t2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9888fd13b8a8588e4cf8a12a408276d73aeb08f6
[INFO] checking marchellodev/kse_comms_n_networking_t2 against try#7dabc88a3b6768751847baeb49983f31ac5f20e2 for pr-155945
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarchellodev%2Fkse_comms_n_networking_t2" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/marchellodev/kse_comms_n_networking_t2
[INFO] finished tweaking git repo https://github.com/marchellodev/kse_comms_n_networking_t2
[INFO] tweaked toml for git repo https://github.com/marchellodev/kse_comms_n_networking_t2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/marchellodev/kse_comms_n_networking_t2 on toolchain 7dabc88a3b6768751847baeb49983f31ac5f20e2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7dabc88a3b6768751847baeb49983f31ac5f20e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/marchellodev/kse_comms_n_networking_t2 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" "+7dabc88a3b6768751847baeb49983f31ac5f20e2" "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
[INFO] checking marchellodev/kse_comms_n_networking_t2 against try#7dabc88a3b6768751847baeb49983f31ac5f20e2 for pr-155945
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarchellodev%2Fkse_comms_n_networking_t2" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/marchellodev/kse_comms_n_networking_t2
[INFO] finished tweaking git repo https://github.com/marchellodev/kse_comms_n_networking_t2
[INFO] tweaked toml for git repo https://github.com/marchellodev/kse_comms_n_networking_t2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/marchellodev/kse_comms_n_networking_t2 on toolchain 7dabc88a3b6768751847baeb49983f31ac5f20e2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7dabc88a3b6768751847baeb49983f31ac5f20e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/marchellodev/kse_comms_n_networking_t2 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" "+7dabc88a3b6768751847baeb49983f31ac5f20e2" "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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+7dabc88a3b6768751847baeb49983f31ac5f20e2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 91a11cecbe8ec6df3075192cef65abb9f86d2ed351978d9749d7b53c3e135755
[INFO] running `Command { std: "docker" "start" "-a" "91a11cecbe8ec6df3075192cef65abb9f86d2ed351978d9749d7b53c3e135755", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91a11cecbe8ec6df3075192cef65abb9f86d2ed351978d9749d7b53c3e135755", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91a11cecbe8ec6df3075192cef65abb9f86d2ed351978d9749d7b53c3e135755", kill_on_drop: false }`
[INFO] [stdout] 91a11cecbe8ec6df3075192cef65abb9f86d2ed351978d9749d7b53c3e135755
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+7dabc88a3b6768751847baeb49983f31ac5f20e2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d7d43a52a6548f69784edcf8e91b451014ddf5ab2ea077647a3051d888a215f
[INFO] running `Command { std: "docker" "start" "-a" "2d7d43a52a6548f69784edcf8e91b451014ddf5ab2ea077647a3051d888a215f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]     Checking getrandom v0.2.9
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking t2_threadpools v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `cvar`
[INFO] [stdout]   --> src/main.rs:89:29
[INFO] [stdout]    |
[INFO] [stdout] 89 |             let (ref mutex, ref cvar) = *queue;
[INFO] [stdout]    |                             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cvar`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cvar`
[INFO] [stdout]   --> src/main.rs:89:29
[INFO] [stdout]    |
[INFO] [stdout] 89 |             let (ref mutex, ref cvar) = *queue;
[INFO] [stdout]    |                             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cvar`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.57s
[INFO] running `Command { std: "docker" "inspect" "2d7d43a52a6548f69784edcf8e91b451014ddf5ab2ea077647a3051d888a215f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d7d43a52a6548f69784edcf8e91b451014ddf5ab2ea077647a3051d888a215f", kill_on_drop: false }`
[INFO] [stdout] 2d7d43a52a6548f69784edcf8e91b451014ddf5ab2ea077647a3051d888a215f
