[INFO] fetching crate ref-cast-test-suite 0.0.0...
[INFO] testing ref-cast-test-suite-0.0.0 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate ref-cast-test-suite 0.0.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate ref-cast-test-suite 0.0.0
[INFO] finished tweaking crates.io crate ref-cast-test-suite 0.0.0
[INFO] tweaked toml for crates.io crate ref-cast-test-suite 0.0.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ref-cast-test-suite 0.0.0 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 907fc12a95f77bc210cd6a18585fbd9a40a22f47f8fefaae0c2288f98db2561a
[INFO] running `Command { std: "docker" "start" "-a" "907fc12a95f77bc210cd6a18585fbd9a40a22f47f8fefaae0c2288f98db2561a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "907fc12a95f77bc210cd6a18585fbd9a40a22f47f8fefaae0c2288f98db2561a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "907fc12a95f77bc210cd6a18585fbd9a40a22f47f8fefaae0c2288f98db2561a", kill_on_drop: false }`
[INFO] [stdout] 907fc12a95f77bc210cd6a18585fbd9a40a22f47f8fefaae0c2288f98db2561a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] fb73c6ad26799da6a9c81e2bb42206ea5e9b0f552047e409f0c1bf11f9f0abe2
[INFO] running `Command { std: "docker" "start" "-a" "fb73c6ad26799da6a9c81e2bb42206ea5e9b0f552047e409f0c1bf11f9f0abe2", kill_on_drop: false }`
[INFO] [stderr]    Compiling ref-cast-test-suite v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected item, found `@`
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | @
[INFO] [stdout]   | ^ expected item
[INFO] [stdout]   |
[INFO] [stdout]   = note: for a full list of items that can appear in modules, see <https://doc.rust-lang.org/reference/items.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ref-cast-test-suite` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "fb73c6ad26799da6a9c81e2bb42206ea5e9b0f552047e409f0c1bf11f9f0abe2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb73c6ad26799da6a9c81e2bb42206ea5e9b0f552047e409f0c1bf11f9f0abe2", kill_on_drop: false }`
[INFO] [stdout] fb73c6ad26799da6a9c81e2bb42206ea5e9b0f552047e409f0c1bf11f9f0abe2