[INFO] cloning repository https://github.com/niklashed/Rust_read_toml_config
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/niklashed/Rust_read_toml_config" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fniklashed%2FRust_read_toml_config", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fniklashed%2FRust_read_toml_config'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 48cd4e2cc12f50c1e70bfb48cda0b411107bcf60
[INFO] checking niklashed/Rust_read_toml_config against master#7bdae134cba57426d3c56b5de737a351762445e1 for pr-123794
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fniklashed%2FRust_read_toml_config" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/niklashed/Rust_read_toml_config on toolchain 7bdae134cba57426d3c56b5de737a351762445e1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7bdae134cba57426d3c56b5de737a351762445e1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/niklashed/Rust_read_toml_config
[INFO] finished tweaking git repo https://github.com/niklashed/Rust_read_toml_config
[INFO] tweaked toml for git repo https://github.com/niklashed/Rust_read_toml_config written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/niklashed/Rust_read_toml_config 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" "+7bdae134cba57426d3c56b5de737a351762445e1" "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 niklashed/Rust_read_toml_config against try#f0a46ffcb8bbd220fe569642e5e175207d8e3fea for pr-123794
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fniklashed%2FRust_read_toml_config" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/niklashed/Rust_read_toml_config on toolchain f0a46ffcb8bbd220fe569642e5e175207d8e3fea
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f0a46ffcb8bbd220fe569642e5e175207d8e3fea" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/niklashed/Rust_read_toml_config
[INFO] finished tweaking git repo https://github.com/niklashed/Rust_read_toml_config
[INFO] tweaked toml for git repo https://github.com/niklashed/Rust_read_toml_config written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/niklashed/Rust_read_toml_config 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" "+f0a46ffcb8bbd220fe569642e5e175207d8e3fea" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+f0a46ffcb8bbd220fe569642e5e175207d8e3fea" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e9bb93370063fff8a0cbb4a0289c5fee851a3621f5230d9330583b7a77c958e3
[INFO] running `Command { std: "docker" "start" "-a" "e9bb93370063fff8a0cbb4a0289c5fee851a3621f5230d9330583b7a77c958e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9bb93370063fff8a0cbb4a0289c5fee851a3621f5230d9330583b7a77c958e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9bb93370063fff8a0cbb4a0289c5fee851a3621f5230d9330583b7a77c958e3", kill_on_drop: false }`
[INFO] [stdout] e9bb93370063fff8a0cbb4a0289c5fee851a3621f5230d9330583b7a77c958e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+f0a46ffcb8bbd220fe569642e5e175207d8e3fea" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c2c23c98171c083f40b4be1fd2057563c0ab78bc4a2fdf2a45b1a0eb72ef605
[INFO] running `Command { std: "docker" "start" "-a" "9c2c23c98171c083f40b4be1fd2057563c0ab78bc4a2fdf2a45b1a0eb72ef605", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking config_toml_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `global_string` and `num_ports` are never read
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | struct Config {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 10 |     global_string: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 11 |     num_ports: Option<u64>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Config` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `global_string` and `num_ports` are never read
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | struct Config {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 10 |     global_string: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 11 |     num_ports: Option<u64>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Config` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.21s
[INFO] running `Command { std: "docker" "inspect" "9c2c23c98171c083f40b4be1fd2057563c0ab78bc4a2fdf2a45b1a0eb72ef605", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c2c23c98171c083f40b4be1fd2057563c0ab78bc4a2fdf2a45b1a0eb72ef605", kill_on_drop: false }`
[INFO] [stdout] 9c2c23c98171c083f40b4be1fd2057563c0ab78bc4a2fdf2a45b1a0eb72ef605