[INFO] cloning repository https://github.com/perlov3301/rust9_fn_statement_expression
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/perlov3301/rust9_fn_statement_expression" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fperlov3301%2Frust9_fn_statement_expression", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fperlov3301%2Frust9_fn_statement_expression'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d45c83efe814e688a4f1ff7cb3276e85e8380af9
[INFO] checking perlov3301/rust9_fn_statement_expression against try#51de2e90f91fdec6cf64ff542a4e15b9c177a797 for pr-147294
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fperlov3301%2Frust9_fn_statement_expression" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/perlov3301/rust9_fn_statement_expression
[INFO] finished tweaking git repo https://github.com/perlov3301/rust9_fn_statement_expression
[INFO] tweaked toml for git repo https://github.com/perlov3301/rust9_fn_statement_expression written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/perlov3301/rust9_fn_statement_expression on toolchain 51de2e90f91fdec6cf64ff542a4e15b9c177a797
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+51de2e90f91fdec6cf64ff542a4e15b9c177a797" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/perlov3301/rust9_fn_statement_expression 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" "+51de2e90f91fdec6cf64ff542a4e15b9c177a797" "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 perlov3301/rust9_fn_statement_expression against try#51de2e90f91fdec6cf64ff542a4e15b9c177a797 for pr-147294
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fperlov3301%2Frust9_fn_statement_expression" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/perlov3301/rust9_fn_statement_expression
[INFO] finished tweaking git repo https://github.com/perlov3301/rust9_fn_statement_expression
[INFO] tweaked toml for git repo https://github.com/perlov3301/rust9_fn_statement_expression written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/perlov3301/rust9_fn_statement_expression on toolchain 51de2e90f91fdec6cf64ff542a4e15b9c177a797
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+51de2e90f91fdec6cf64ff542a4e15b9c177a797" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/perlov3301/rust9_fn_statement_expression 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" "+51de2e90f91fdec6cf64ff542a4e15b9c177a797" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+51de2e90f91fdec6cf64ff542a4e15b9c177a797" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 50e8fe741b83f29a528cd3e5f123e1fa2d5f44ffa126c007f8c6a41b82e03396
[INFO] running `Command { std: "docker" "start" "-a" "50e8fe741b83f29a528cd3e5f123e1fa2d5f44ffa126c007f8c6a41b82e03396", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50e8fe741b83f29a528cd3e5f123e1fa2d5f44ffa126c007f8c6a41b82e03396", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50e8fe741b83f29a528cd3e5f123e1fa2d5f44ffa126c007f8c6a41b82e03396", kill_on_drop: false }`
[INFO] [stdout] 50e8fe741b83f29a528cd3e5f123e1fa2d5f44ffa126c007f8c6a41b82e03396
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+51de2e90f91fdec6cf64ff542a4e15b9c177a797" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5efd61aa0dca2c730c52d63fc8815d743faf5278ce14388b3fd48e5de417a456
[INFO] running `Command { std: "docker" "start" "-a" "5efd61aa0dca2c730c52d63fc8815d743faf5278ce14388b3fd48e5de417a456", kill_on_drop: false }`
[INFO] [stderr]     Checking rust9_functions_expressions v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `x1` is never read
[INFO] [stdout]   --> src/main.rs:25:6
[INFO] [stdout]    |
[INFO] [stdout] 25 |      x1 = f_expression3(2.0, 3.0);
[INFO] [stdout]    |      ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x1` is never read
[INFO] [stdout]   --> src/main.rs:25:6
[INFO] [stdout]    |
[INFO] [stdout] 25 |      x1 = f_expression3(2.0, 3.0);
[INFO] [stdout]    |      ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] running `Command { std: "docker" "inspect" "5efd61aa0dca2c730c52d63fc8815d743faf5278ce14388b3fd48e5de417a456", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5efd61aa0dca2c730c52d63fc8815d743faf5278ce14388b3fd48e5de417a456", kill_on_drop: false }`
[INFO] [stdout] 5efd61aa0dca2c730c52d63fc8815d743faf5278ce14388b3fd48e5de417a456