Nov 17 04:48:01.719 INFO testing dflemstr/semantic-editor against try#2e026d6e5d7621634147ad4c8074f1d964dbb1be for pr-55982
Nov 17 04:48:01.719 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-5/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +2e026d6e5d7621634147ad4c8074f1d964dbb1be-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 17 04:48:01.929 INFO [stdout] 5f67ae39a62c81cd102f176990ecc3316139dda649ef18fda5a81c3fb0b2de76
Nov 17 04:48:01.932 INFO running `"docker" "start" "-a" "5f67ae39a62c81cd102f176990ecc3316139dda649ef18fda5a81c3fb0b2de76"`
Nov 17 04:48:02.942 INFO [stderr] usermod: no changes
Nov 17 04:48:03.323 INFO [stderr]    Compiling proc-macro2 v0.4.13
Nov 17 04:48:03.331 INFO [stderr]    Compiling wasm-bindgen-shared v0.2.19
Nov 17 04:48:03.343 INFO [stderr]    Compiling type-info v0.2.1
Nov 17 04:48:03.343 INFO [stderr]    Compiling slog v2.3.2
Nov 17 04:48:03.343 INFO [stderr]    Compiling futures-await-await-macro v0.1.1
Nov 17 04:48:03.343 INFO [stderr]    Compiling uuid v0.6.5
Nov 17 04:48:03.343 INFO [stderr]    Compiling walkdir v2.2.5
Nov 17 04:48:03.343 INFO [stderr]    Compiling tempdir v0.3.7
Nov 17 04:48:04.863 INFO [stderr]    Compiling want v0.0.6
Nov 17 04:48:05.407 INFO [stderr]    Compiling env_logger v0.5.12
Nov 17 04:48:06.899 INFO [stderr]    Compiling prost v0.4.0
Nov 17 04:48:06.957 INFO [stderr]    Compiling http v0.1.9
Nov 17 04:48:09.604 INFO [stderr]    Compiling mio-uds v0.6.6
Nov 17 04:48:09.611 INFO [stderr]    Compiling getset v0.0.6
Nov 17 04:48:09.619 INFO [stderr]    Compiling tokio-reactor v0.1.3
Nov 17 04:48:09.620 INFO [stderr]    Compiling semantic v0.1.0 (/source/semantic)
Nov 17 04:48:09.688 INFO [stderr]    Compiling type-info-derive v0.2.0
Nov 17 04:48:13.784 INFO [stderr]    Compiling error-chain v0.12.0
Nov 17 04:48:13.987 INFO [stderr]    Compiling slog-scope v4.0.1
Nov 17 04:48:14.659 INFO [stderr]    Compiling slog-async v2.3.0
Nov 17 04:48:20.599 INFO [stderr]    Compiling slog-json v2.2.0
Nov 17 04:48:20.663 INFO [stderr]    Compiling slog-term v2.4.0
Nov 17 04:48:20.819 INFO [stderr]    Compiling tokio-threadpool v0.1.5
Nov 17 04:48:23.595 INFO [stderr]    Compiling slog-stdlog v3.0.2
Nov 17 04:48:23.804 INFO [stderr] error[E0658]: use of unstable library feature 'proc_macro_def_site' (see issue #54724)
Nov 17 04:48:23.804 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.13/src/unstable.rs:359:27
Nov 17 04:48:23.804 INFO [stderr]     |
Nov 17 04:48:23.804 INFO [stderr] 359 |             Span::Nightly(proc_macro::Span::def_site())
Nov 17 04:48:23.804 INFO [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 04:48:23.804 INFO [stderr]     |
Nov 17 04:48:23.804 INFO [stderr]     = help: add #![feature(proc_macro_def_site)] to the crate attributes to enable
Nov 17 04:48:23.804 INFO [stderr] 
Nov 17 04:48:23.919 INFO [stderr] error: aborting due to previous error
Nov 17 04:48:23.921 INFO [stderr] 
Nov 17 04:48:23.921 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Nov 17 04:48:24.003 INFO [stderr] error: Could not compile `proc-macro2`.
Nov 17 04:48:24.003 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Nov 17 04:48:30.989 INFO [stderr] error: build failed
Nov 17 04:48:30.992 INFO [stderr] su: No module specific data is present
Nov 17 04:48:31.287 INFO running `"docker" "inspect" "5f67ae39a62c81cd102f176990ecc3316139dda649ef18fda5a81c3fb0b2de76"`
Nov 17 04:48:31.384 INFO running `"docker" "rm" "-f" "5f67ae39a62c81cd102f176990ecc3316139dda649ef18fda5a81c3fb0b2de76"`
Nov 17 04:48:31.499 INFO [stdout] 5f67ae39a62c81cd102f176990ecc3316139dda649ef18fda5a81c3fb0b2de76