Nov 28 01:02:06.459 INFO checking mattdeboard/prepend_line against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 01:02:06.461 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-5/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-alt check --frozen --all --all-targets" "-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 28 01:02:06.862 INFO [stdout] ecb86c7656ffb17de3ac045fd57c229faad9a4cf481d4360fec62133e2ce5df5
Nov 28 01:02:06.863 INFO running `"docker" "start" "-a" "ecb86c7656ffb17de3ac045fd57c229faad9a4cf481d4360fec62133e2ce5df5"`
Nov 28 01:02:08.061 INFO [stderr] usermod: no changes
Nov 28 01:02:08.236 INFO [stderr]    Compiling proc-macro2 v0.4.12
Nov 28 01:02:08.236 INFO [stderr]    Compiling wasm-bindgen-shared v0.2.16
Nov 28 01:02:08.236 INFO [stderr]    Compiling log v0.4.3
Nov 28 01:02:08.236 INFO [stderr]    Compiling ryu v0.2.3
Nov 28 01:02:08.236 INFO [stderr]     Checking uuid v0.1.18
Nov 28 01:02:08.236 INFO [stderr]     Checking regex v1.0.2
Nov 28 01:02:09.999 INFO [stderr]    Compiling serde_json v1.0.26
Nov 28 01:02:11.596 INFO [stderr]     Checking mktemp v0.3.1
Nov 28 01:02:16.536 INFO [stderr] error[E0658]: use of unstable library feature 'proc_macro_def_site' (see issue #54724)
Nov 28 01:02:16.537 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.12/src/unstable.rs:346:27
Nov 28 01:02:16.537 INFO [stderr]     |
Nov 28 01:02:16.537 INFO [stderr] 346 |             Span::Nightly(proc_macro::Span::def_site())
Nov 28 01:02:16.537 INFO [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 01:02:16.538 INFO [stderr]     |
Nov 28 01:02:16.538 INFO [stderr]     = help: add #![feature(proc_macro_def_site)] to the crate attributes to enable
Nov 28 01:02:16.538 INFO [stderr] 
Nov 28 01:02:16.572 INFO [stderr] error: aborting due to previous error
Nov 28 01:02:16.573 INFO [stderr] 
Nov 28 01:02:16.573 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Nov 28 01:02:16.596 INFO [stderr] error: Could not compile `proc-macro2`.
Nov 28 01:02:16.597 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Nov 28 01:02:18.549 INFO [stderr] error: build failed
Nov 28 01:02:18.552 INFO [stderr] su: No module specific data is present
Nov 28 01:02:19.790 INFO running `"docker" "inspect" "ecb86c7656ffb17de3ac045fd57c229faad9a4cf481d4360fec62133e2ce5df5"`
Nov 28 01:02:20.073 INFO running `"docker" "rm" "-f" "ecb86c7656ffb17de3ac045fd57c229faad9a4cf481d4360fec62133e2ce5df5"`
Nov 28 01:02:20.424 INFO [stdout] ecb86c7656ffb17de3ac045fd57c229faad9a4cf481d4360fec62133e2ce5df5