[INFO] crate fehler 1.0.0-alpha.2 is already in cache
[INFO] checking fehler-1.0.0-alpha.2 against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1
[INFO] extracting crate fehler 1.0.0-alpha.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate fehler 1.0.0-alpha.2 on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate fehler 1.0.0-alpha.2
[INFO] finished tweaking crates.io crate fehler 1.0.0-alpha.2
[INFO] tweaked toml for crates.io crate fehler 1.0.0-alpha.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate fehler 1.0.0-alpha.2 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3b7171b02aa7f8b5f312e090df5b452286642fde0fb7bef202643f8b8481dca7
[INFO] running `"docker" "start" "-a" "3b7171b02aa7f8b5f312e090df5b452286642fde0fb7bef202643f8b8481dca7"`
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.3
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling fehler-macros v1.0.0-alpha.2
[INFO] [stderr]     Checking fehler v1.0.0-alpha.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]  --> tests/no_std.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | #[throws(i32)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^ unreachable expression
[INFO] [stderr] 6 | fn no_std_fn() {
[INFO] [stderr] 7 |     throw!(0);
[INFO] [stderr]   |     ---------- any code following this expression is unreachable
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr]   = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.85s
[INFO] running `"docker" "inspect" "3b7171b02aa7f8b5f312e090df5b452286642fde0fb7bef202643f8b8481dca7"`
[INFO] running `"docker" "rm" "-f" "3b7171b02aa7f8b5f312e090df5b452286642fde0fb7bef202643f8b8481dca7"`
[INFO] [stdout] 3b7171b02aa7f8b5f312e090df5b452286642fde0fb7bef202643f8b8481dca7