[INFO] crate expert 0.0.1 is already in cache
[INFO] checking expert-0.0.1 against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] extracting crate expert 0.0.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate expert 0.0.1 on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate expert 0.0.1
[INFO] finished tweaking crates.io crate expert 0.0.1
[INFO] tweaked toml for crates.io crate expert 0.0.1 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 7f05f7fd7248a0921aba6d6c1c76802f1c2936085076749cfe1815866de32162
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "7f05f7fd7248a0921aba6d6c1c76802f1c2936085076749cfe1815866de32162"`
[INFO] [stderr]    Compiling interpolate_idents v0.1.8
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking string-interner v0.6.4
[INFO] [stderr]     Checking float-cmp v0.2.5
[INFO] [stderr]     Checking ordered-float v0.5.2
[INFO] [stderr] error[E0462]: found staticlib `rustc` instead of rlib or dylib
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/interpolate_idents-0.1.8/src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | extern crate rustc;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: please recompile that crate using --crate-type lib
[INFO] [stderr]   = note: the following crate versions were found:
[INFO] [stderr]           crate `rustc`: /opt/rustwide/rustup-home/toolchains/209b2be09fcaff937480d1fbbe8b31646e361c7a/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-nightly_rt.asan.a
[INFO] [stderr]           crate `rustc`: /opt/rustwide/rustup-home/toolchains/209b2be09fcaff937480d1fbbe8b31646e361c7a/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-nightly_rt.tsan.a
[INFO] [stderr]           crate `rustc`: /opt/rustwide/rustup-home/toolchains/209b2be09fcaff937480d1fbbe8b31646e361c7a/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-nightly_rt.msan.a
[INFO] [stderr]           crate `rustc`: /opt/rustwide/rustup-home/toolchains/209b2be09fcaff937480d1fbbe8b31646e361c7a/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-nightly_rt.lsan.a
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `interpolate_idents`.
[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 `"docker" "inspect" "7f05f7fd7248a0921aba6d6c1c76802f1c2936085076749cfe1815866de32162"`
[INFO] running `"docker" "rm" "-f" "7f05f7fd7248a0921aba6d6c1c76802f1c2936085076749cfe1815866de32162"`
[INFO] [stdout] 7f05f7fd7248a0921aba6d6c1c76802f1c2936085076749cfe1815866de32162