[INFO] fetching crate fax 0.1.0...
[INFO] testing fax-0.1.0 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate fax 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate fax 0.1.0 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 fax 0.1.0
[INFO] finished tweaking crates.io crate fax 0.1.0
[INFO] tweaked toml for crates.io crate fax 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate fax 0.1.0 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 syn v1.0.69
[INFO] [stderr]   Downloaded fax_derive v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] b3e34b64c664f2914942fe48a42a03b46f4c5d1041353224fb68a8fa6b4db181
[INFO] running `Command { std: "docker" "start" "-a" "b3e34b64c664f2914942fe48a42a03b46f4c5d1041353224fb68a8fa6b4db181", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3e34b64c664f2914942fe48a42a03b46f4c5d1041353224fb68a8fa6b4db181", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3e34b64c664f2914942fe48a42a03b46f4c5d1041353224fb68a8fa6b4db181", kill_on_drop: false }`
[INFO] [stdout] b3e34b64c664f2914942fe48a42a03b46f4c5d1041353224fb68a8fa6b4db181
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 2087cc707c52bfce9f94b95a2551da87cf183e6b95926e2f9f37c2715392b547
[INFO] running `Command { std: "docker" "start" "-a" "2087cc707c52bfce9f94b95a2551da87cf183e6b95926e2f9f37c2715392b547", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling fax_derive v0.1.0
[INFO] [stderr]    Compiling fax v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Empty`
[INFO] [stdout]  --> src/maps.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     Empty,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.03s
[INFO] running `Command { std: "docker" "inspect" "2087cc707c52bfce9f94b95a2551da87cf183e6b95926e2f9f37c2715392b547", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2087cc707c52bfce9f94b95a2551da87cf183e6b95926e2f9f37c2715392b547", kill_on_drop: false }`
[INFO] [stdout] 2087cc707c52bfce9f94b95a2551da87cf183e6b95926e2f9f37c2715392b547
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a4469c74b16ead45d1485210bf0eb4604ab81a2d711182e41a8cb59ee66b425
[INFO] running `Command { std: "docker" "start" "-a" "7a4469c74b16ead45d1485210bf0eb4604ab81a2d711182e41a8cb59ee66b425", kill_on_drop: false }`
[INFO] [stderr]    Compiling fax v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Empty`
[INFO] [stdout]  --> src/maps.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     Empty,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[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] error[E0423]: expected function, found module `maps::black`
[INFO] [stdout]    --> src/lib.rs:172:16
[INFO] [stdout]     |
[INFO] [stdout] 172 |     assert_eq!(maps::black(&mut bits), Some(42));
[INFO] [stdout]     |                ^^^^^^^^^^^ not a function
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0423`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fax`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "7a4469c74b16ead45d1485210bf0eb4604ab81a2d711182e41a8cb59ee66b425", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a4469c74b16ead45d1485210bf0eb4604ab81a2d711182e41a8cb59ee66b425", kill_on_drop: false }`
[INFO] [stdout] 7a4469c74b16ead45d1485210bf0eb4604ab81a2d711182e41a8cb59ee66b425