[INFO] crate crustacean-plugin 0.3.1 is already in cache
[INFO] testing crustacean-plugin-0.3.1 against 1.44.0 for beta-1.45-1
[INFO] extracting crate crustacean-plugin 0.3.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate crustacean-plugin 0.3.1 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate crustacean-plugin 0.3.1
[INFO] removed path dependency crustacean from crates.io crate crustacean-plugin 0.3.1
[INFO] finished tweaking crates.io crate crustacean-plugin 0.3.1
[INFO] tweaked toml for crates.io crate crustacean-plugin 0.3.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "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=warn" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f9a6a3d836d73f86f937af54327e38171f6620894859cbe91b13681e530e876e
[INFO] running `"docker" "start" "-a" "f9a6a3d836d73f86f937af54327e38171f6620894859cbe91b13681e530e876e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling synthax v0.3.6
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling clang-sys v0.13.0
[INFO] [stderr]    Compiling clang-sys v0.11.1
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/synthax-0.3.6/src/lib.rs:70:85
[INFO] [stderr]    |
[INFO] [stderr] 70 | #![cfg_attr(not(feature="syntex"), feature(plugin, plugin_registrar, rustc_private, quote))]
[INFO] [stderr]    |                                                                                     ^^^^^ feature has been removed
[INFO] [stderr] 
[INFO] [stderr] error[E0463]: can't find crate for `rustc_plugin`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/synthax-0.3.6/src/lib.rs:82:1
[INFO] [stderr]    |
[INFO] [stderr] 82 | extern crate rustc_plugin;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0463, E0557.
[INFO] [stderr] For more information about an error, try `rustc --explain E0463`.
[INFO] [stderr] error: could not compile `synthax`.
[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" "f9a6a3d836d73f86f937af54327e38171f6620894859cbe91b13681e530e876e"`
[INFO] running `"docker" "rm" "-f" "f9a6a3d836d73f86f937af54327e38171f6620894859cbe91b13681e530e876e"`
[INFO] [stdout] f9a6a3d836d73f86f937af54327e38171f6620894859cbe91b13681e530e876e