[INFO] cloning repository https://github.com/drogus/lunatic-spawning-test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/drogus/lunatic-spawning-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdrogus%2Flunatic-spawning-test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdrogus%2Flunatic-spawning-test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c57b5c2e71eb1eccfebedcdf92f642c6f909c0eb
[INFO] checking drogus/lunatic-spawning-test against try#d336647335db03a0fc5b24fc5325cd3905c5b8e8 for pr-151146
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdrogus%2Flunatic-spawning-test" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/drogus/lunatic-spawning-test
[INFO] finished tweaking git repo https://github.com/drogus/lunatic-spawning-test
[INFO] tweaked toml for git repo https://github.com/drogus/lunatic-spawning-test written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/drogus/lunatic-spawning-test on toolchain d336647335db03a0fc5b24fc5325cd3905c5b8e8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d336647335db03a0fc5b24fc5325cd3905c5b8e8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/drogus/lunatic-spawning-test 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" "+d336647335db03a0fc5b24fc5325cd3905c5b8e8" "fetch" "--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] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking drogus/lunatic-spawning-test against try#d336647335db03a0fc5b24fc5325cd3905c5b8e8 for pr-151146
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdrogus%2Flunatic-spawning-test" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/drogus/lunatic-spawning-test
[INFO] finished tweaking git repo https://github.com/drogus/lunatic-spawning-test
[INFO] tweaked toml for git repo https://github.com/drogus/lunatic-spawning-test written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/drogus/lunatic-spawning-test on toolchain d336647335db03a0fc5b24fc5325cd3905c5b8e8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d336647335db03a0fc5b24fc5325cd3905c5b8e8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/drogus/lunatic-spawning-test 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" "+d336647335db03a0fc5b24fc5325cd3905c5b8e8" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lunatic-macros v0.6.1
[INFO] [stderr]   Downloaded lunatic v0.7.1
[INFO] [stderr]   Downloaded rmp v0.8.10
[INFO] [stderr]   Downloaded rmp-serde v0.15.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+d336647335db03a0fc5b24fc5325cd3905c5b8e8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a742e44b1dbff46b8eaf3ef7bc383edf76826206ac1402d9e618a20b3c1b5f29
[INFO] running `Command { std: "docker" "start" "-a" "a742e44b1dbff46b8eaf3ef7bc383edf76826206ac1402d9e618a20b3c1b5f29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a742e44b1dbff46b8eaf3ef7bc383edf76826206ac1402d9e618a20b3c1b5f29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a742e44b1dbff46b8eaf3ef7bc383edf76826206ac1402d9e618a20b3c1b5f29", kill_on_drop: false }`
[INFO] [stdout] a742e44b1dbff46b8eaf3ef7bc383edf76826206ac1402d9e618a20b3c1b5f29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+d336647335db03a0fc5b24fc5325cd3905c5b8e8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a45b6a9c2b1291490ccb541baf70d2be5b789039fc63c313416001ba3bf52141
[INFO] running `Command { std: "docker" "start" "-a" "a45b6a9c2b1291490ccb541baf70d2be5b789039fc63c313416001ba3bf52141", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.84
[INFO] [stderr]    Compiling serde_derive v1.0.132
[INFO] [stderr]    Compiling serde v1.0.132
[INFO] [stderr]     Checking rmp v0.8.10
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling lunatic-macros v0.6.1
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking rmp-serde v0.15.5
[INFO] [stderr]     Checking lunatic v0.7.1
[INFO] [stderr]     Checking lunatic-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `parent`
[INFO] [stdout]   --> src/main.rs:22:25
[INFO] [stdout]    |
[INFO] [stdout] 22 |         .spawn_link(m, |parent: Mailbox<()>| {
[INFO] [stdout]    |                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent`
[INFO] [stdout]   --> src/main.rs:22:25
[INFO] [stdout]    |
[INFO] [stdout] 22 |         .spawn_link(m, |parent: Mailbox<()>| {
[INFO] [stdout]    |                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent`
[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 8.29s
[INFO] running `Command { std: "docker" "inspect" "a45b6a9c2b1291490ccb541baf70d2be5b789039fc63c313416001ba3bf52141", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a45b6a9c2b1291490ccb541baf70d2be5b789039fc63c313416001ba3bf52141", kill_on_drop: false }`
[INFO] [stdout] a45b6a9c2b1291490ccb541baf70d2be5b789039fc63c313416001ba3bf52141