[INFO] fetching crate ruxn 0.1.0...
[INFO] building ruxn-0.1.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate ruxn 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate ruxn 0.1.0
[INFO] finished tweaking crates.io crate ruxn 0.1.0
[INFO] tweaked toml for crates.io crate ruxn 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ruxn 0.1.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f1e2d6b3c888e7b6df7e840847e5e59e4e157bb960879c19da56f6315394be4
[INFO] running `Command { std: "docker" "start" "-a" "4f1e2d6b3c888e7b6df7e840847e5e59e4e157bb960879c19da56f6315394be4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f1e2d6b3c888e7b6df7e840847e5e59e4e157bb960879c19da56f6315394be4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f1e2d6b3c888e7b6df7e840847e5e59e4e157bb960879c19da56f6315394be4", kill_on_drop: false }`
[INFO] [stdout] 4f1e2d6b3c888e7b6df7e840847e5e59e4e157bb960879c19da56f6315394be4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01767963fd050f24e9a92a5c7011f154f27f720752d1dd4a4d4609d7e5a8fe3c
[INFO] running `Command { std: "docker" "start" "-a" "01767963fd050f24e9a92a5c7011f154f27f720752d1dd4a4d4609d7e5a8fe3c", kill_on_drop: false }`
[INFO] [stderr]    Compiling ruxn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `vrx` is never read
[INFO] [stdout]    --> src/uxn.rs:120:5
[INFO] [stdout]     |
[INFO] [stdout] 114 | pub struct Uxn<T> {
[INFO] [stdout]     |            --- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 120 |     vrx: Receiver<u16>,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "01767963fd050f24e9a92a5c7011f154f27f720752d1dd4a4d4609d7e5a8fe3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01767963fd050f24e9a92a5c7011f154f27f720752d1dd4a4d4609d7e5a8fe3c", kill_on_drop: false }`
[INFO] [stdout] 01767963fd050f24e9a92a5c7011f154f27f720752d1dd4a4d4609d7e5a8fe3c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82d458968678fc0683c8bf3a8d44830cc447332d4f9de9ec0ac06aca997cfad5
[INFO] running `Command { std: "docker" "start" "-a" "82d458968678fc0683c8bf3a8d44830cc447332d4f9de9ec0ac06aca997cfad5", kill_on_drop: false }`
[INFO] [stdout] warning: field `vrx` is never read
[INFO] [stdout]    --> src/uxn.rs:120:5
[INFO] [stdout]     |
[INFO] [stdout] 114 | pub struct Uxn<T> {
[INFO] [stdout]     |            --- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 120 |     vrx: Receiver<u16>,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ruxn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `vrx` is never read
[INFO] [stdout]    --> src/uxn.rs:120:5
[INFO] [stdout]     |
[INFO] [stdout] 114 | pub struct Uxn<T> {
[INFO] [stdout]     |            --- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 120 |     vrx: Receiver<u16>,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "82d458968678fc0683c8bf3a8d44830cc447332d4f9de9ec0ac06aca997cfad5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82d458968678fc0683c8bf3a8d44830cc447332d4f9de9ec0ac06aca997cfad5", kill_on_drop: false }`
[INFO] [stdout] 82d458968678fc0683c8bf3a8d44830cc447332d4f9de9ec0ac06aca997cfad5