[INFO] cloning repository https://github.com/tiagonevestia/rust-unit-tests
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tiagonevestia/rust-unit-tests" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftiagonevestia%2Frust-unit-tests", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftiagonevestia%2Frust-unit-tests'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a3d4ff746239c97fb4c0df295c42adc44b9330a5
[INFO] checking tiagonevestia/rust-unit-tests against try#54bb9bb1bbe87f59b5a2e9afea4c8cedcf5e0b47 for pr-153041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftiagonevestia%2Frust-unit-tests" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tiagonevestia/rust-unit-tests
[INFO] finished tweaking git repo https://github.com/tiagonevestia/rust-unit-tests
[INFO] tweaked toml for git repo https://github.com/tiagonevestia/rust-unit-tests written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tiagonevestia/rust-unit-tests on toolchain 54bb9bb1bbe87f59b5a2e9afea4c8cedcf5e0b47
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+54bb9bb1bbe87f59b5a2e9afea4c8cedcf5e0b47" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tiagonevestia/rust-unit-tests 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" "+54bb9bb1bbe87f59b5a2e9afea4c8cedcf5e0b47" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking tiagonevestia/rust-unit-tests against try#54bb9bb1bbe87f59b5a2e9afea4c8cedcf5e0b47 for pr-153041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftiagonevestia%2Frust-unit-tests" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tiagonevestia/rust-unit-tests
[INFO] finished tweaking git repo https://github.com/tiagonevestia/rust-unit-tests
[INFO] tweaked toml for git repo https://github.com/tiagonevestia/rust-unit-tests written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tiagonevestia/rust-unit-tests on toolchain 54bb9bb1bbe87f59b5a2e9afea4c8cedcf5e0b47
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+54bb9bb1bbe87f59b5a2e9afea4c8cedcf5e0b47" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tiagonevestia/rust-unit-tests 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" "+54bb9bb1bbe87f59b5a2e9afea4c8cedcf5e0b47" "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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+54bb9bb1bbe87f59b5a2e9afea4c8cedcf5e0b47" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f6420f9711d2289bd0f8d0edf2f7a060aa09c927bb5ab306c641f4dd052e765c
[INFO] running `Command { std: "docker" "start" "-a" "f6420f9711d2289bd0f8d0edf2f7a060aa09c927bb5ab306c641f4dd052e765c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6420f9711d2289bd0f8d0edf2f7a060aa09c927bb5ab306c641f4dd052e765c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6420f9711d2289bd0f8d0edf2f7a060aa09c927bb5ab306c641f4dd052e765c", kill_on_drop: false }`
[INFO] [stdout] f6420f9711d2289bd0f8d0edf2f7a060aa09c927bb5ab306c641f4dd052e765c
[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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+54bb9bb1bbe87f59b5a2e9afea4c8cedcf5e0b47" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8471609d3de72f6afb3b02f645a30ab0cf06258bf76748f0d45f9054329d05a6
[INFO] running `Command { std: "docker" "start" "-a" "8471609d3de72f6afb3b02f645a30ab0cf06258bf76748f0d45f9054329d05a6", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-unit-tests v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `SomeStructure` is never constructed
[INFO] [stdout]  --> src/utils/some_structure.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct SomeStructure {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `double_value` is never used
[INFO] [stdout]   --> src/utils/some_structure.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl SomeStructure {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] 10 |     fn double_value(&self) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `module_private_function` is never used
[INFO] [stdout]   --> src/utils/some_structure.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn module_private_function() {}
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] running `Command { std: "docker" "inspect" "8471609d3de72f6afb3b02f645a30ab0cf06258bf76748f0d45f9054329d05a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8471609d3de72f6afb3b02f645a30ab0cf06258bf76748f0d45f9054329d05a6", kill_on_drop: false }`
[INFO] [stdout] 8471609d3de72f6afb3b02f645a30ab0cf06258bf76748f0d45f9054329d05a6