[INFO] fetching crate dcmimu 0.2.2...
[INFO] testing dcmimu-0.2.2 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate dcmimu 0.2.2 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate dcmimu 0.2.2 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dcmimu 0.2.2
[INFO] finished tweaking crates.io crate dcmimu 0.2.2
[INFO] tweaked toml for crates.io crate dcmimu 0.2.2 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate crates.io crate dcmimu 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libm v0.1.3
[INFO] [stderr]   Downloaded csv-core v0.1.5
[INFO] [stderr]   Downloaded memchr v2.2.0
[INFO] [stderr]   Downloaded libc v0.2.54
[INFO] [stderr]   Downloaded csv v1.0.7
[INFO] [stderr]   Downloaded ryu v0.2.8
[INFO] [stderr]   Downloaded serde v1.0.91
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 73911d3b327fd3d5f75b8559734d3cf9c71ceecbd37ce7c88e7a5e5f13250e56
[INFO] running `Command { std: "docker" "start" "-a" "73911d3b327fd3d5f75b8559734d3cf9c71ceecbd37ce7c88e7a5e5f13250e56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73911d3b327fd3d5f75b8559734d3cf9c71ceecbd37ce7c88e7a5e5f13250e56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73911d3b327fd3d5f75b8559734d3cf9c71ceecbd37ce7c88e7a5e5f13250e56", kill_on_drop: false }`
[INFO] [stdout] 73911d3b327fd3d5f75b8559734d3cf9c71ceecbd37ce7c88e7a5e5f13250e56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e65c3ea19c3fa7896b4f189060f4f4803a7b65c73098595819412939b3bb782
[INFO] running `Command { std: "docker" "start" "-a" "3e65c3ea19c3fa7896b4f189060f4f4803a7b65c73098595819412939b3bb782", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.1.3
[INFO] [stderr]    Compiling dcmimu v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: field is never read: `a0`
[INFO] [stdout]   --> src/lib.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     a0: f32, a1: f32, a2: f32,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(dead_code)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: field is never read: `a1`
[INFO] [stdout]   --> src/lib.rs:51:14
[INFO] [stdout]    |
[INFO] [stdout] 51 |     a0: f32, a1: f32, a2: f32,
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: field is never read: `a2`
[INFO] [stdout]   --> src/lib.rs:51:23
[INFO] [stdout]    |
[INFO] [stdout] 51 |     a0: f32, a1: f32, a2: f32,
[INFO] [stdout]    |                       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dcmimu`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "3e65c3ea19c3fa7896b4f189060f4f4803a7b65c73098595819412939b3bb782", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e65c3ea19c3fa7896b4f189060f4f4803a7b65c73098595819412939b3bb782", kill_on_drop: false }`
[INFO] [stdout] 3e65c3ea19c3fa7896b4f189060f4f4803a7b65c73098595819412939b3bb782