[INFO] fetching crate unitrix 0.0.4...
[INFO] checking unitrix-0.0.4 against master#8a65ee08296b36342bf7c3cdc15312ccbc357227 for pr-142704
[INFO] extracting crate unitrix 0.0.4 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate unitrix 0.0.4 on toolchain 8a65ee08296b36342bf7c3cdc15312ccbc357227
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate unitrix 0.0.4
[INFO] finished tweaking crates.io crate unitrix 0.0.4
[INFO] tweaked toml for crates.io crate unitrix 0.0.4 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate unitrix 0.0.4 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" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 000e04059ef60d5e0c8d6fe497cd3883d4e6d889a72e58b132c710349e7426ec
[INFO] running `Command { std: "docker" "start" "-a" "000e04059ef60d5e0c8d6fe497cd3883d4e6d889a72e58b132c710349e7426ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "000e04059ef60d5e0c8d6fe497cd3883d4e6d889a72e58b132c710349e7426ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "000e04059ef60d5e0c8d6fe497cd3883d4e6d889a72e58b132c710349e7426ec", kill_on_drop: false }`
[INFO] [stdout] 000e04059ef60d5e0c8d6fe497cd3883d4e6d889a72e58b132c710349e7426ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 612062584bd63f4fc49a8b9778b7cbbd5f54bf8345805de7236ee4d4d27f2a18
[INFO] running `Command { std: "docker" "start" "-a" "612062584bd63f4fc49a8b9778b7cbbd5f54bf8345805de7236ee4d4d27f2a18", kill_on_drop: false }`
[INFO] [stderr]     Checking unitrix v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Symbol` is never used
[INFO] [stdout]   --> src/quantity/unitary.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub trait Symbol: Unitary {
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DisplayWrapper` is never constructed
[INFO] [stdout]   --> src/quantity/unitary.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct DisplayWrapper<T: Symbol>(pub T);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Symbol` is never used
[INFO] [stdout]   --> src/quantity/unitary.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub trait Symbol: Unitary {
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DisplayWrapper` is never constructed
[INFO] [stdout]   --> src/quantity/unitary.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct DisplayWrapper<T: Symbol>(pub T);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "612062584bd63f4fc49a8b9778b7cbbd5f54bf8345805de7236ee4d4d27f2a18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "612062584bd63f4fc49a8b9778b7cbbd5f54bf8345805de7236ee4d4d27f2a18", kill_on_drop: false }`
[INFO] [stdout] 612062584bd63f4fc49a8b9778b7cbbd5f54bf8345805de7236ee4d4d27f2a18