[INFO] fetching crate lumination 0.2.0...
[INFO] checking lumination-0.2.0 against 895980e0290783bb09b1ccf1b11f14eb09b10430 for pr-160186
[INFO] extracting crate lumination 0.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate lumination 0.2.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate lumination 0.2.0
[INFO] tweaked toml for crates.io crate lumination 0.2.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate lumination 0.2.0 on toolchain 895980e0290783bb09b1ccf1b11f14eb09b10430
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate lumination 0.2.0 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" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 4d7ced3148b55f04c25eb38c78209435ffd6fa91e73ab57484dea91ab2d89218
[INFO] running `Command { std: "docker" "start" "4d7ced3148b55f04c25eb38c78209435ffd6fa91e73ab57484dea91ab2d89218", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d7ced3148b55f04c25eb38c78209435ffd6fa91e73ab57484dea91ab2d89218", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4d7ced3148b55f04c25eb38c78209435ffd6fa91e73ab57484dea91ab2d89218" "/opt/rustwide/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d7ced3148b55f04c25eb38c78209435ffd6fa91e73ab57484dea91ab2d89218", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4d7ced3148b55f04c25eb38c78209435ffd6fa91e73ab57484dea91ab2d89218" "/opt/rustwide/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]     Checking glob v0.3.3
[INFO] [stderr]     Checking nom v8.0.0
[INFO] [stderr]     Checking serde_json v1.0.149
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]     Checking tracing v0.1.44
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking lumination v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `connects` is never read
[INFO] [stdout]   --> src/connections.rs:45:24
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let mut connects = Vec::new();
[INFO] [stdout]    |                        ^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 51 |         connects = list_tcp_udp()?;
[INFO] [stdout]    |         -------- `connects` is overwritten here before the previous value is read
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `connects` is never read
[INFO] [stdout]   --> src/connections.rs:45:24
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let mut connects = Vec::new();
[INFO] [stdout]    |                        ^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 51 |         connects = list_tcp_udp()?;
[INFO] [stdout]    |         -------- `connects` is overwritten here before the previous value is read
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused dependency `serde_json`
[INFO] [stderr]  --> Cargo.toml:5:15
[INFO] [stderr]   |
[INFO] [stderr] 5 | [dependencies.serde_json]
[INFO] [stderr]   |               ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `serde_json`
[INFO] [stderr] warning: `lumination` (manifest) generated 1 warning
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.96s
[INFO] running `Command { std: "docker" "inspect" "4d7ced3148b55f04c25eb38c78209435ffd6fa91e73ab57484dea91ab2d89218", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d7ced3148b55f04c25eb38c78209435ffd6fa91e73ab57484dea91ab2d89218", kill_on_drop: false }`
[INFO] [stdout] 4d7ced3148b55f04c25eb38c78209435ffd6fa91e73ab57484dea91ab2d89218
