Nov 09 09:09:40.059 INFO checking mattdeboard/prepend_line against master#653da4fd006c97625247acd7e076d0782cdc149b for pr-55632
Nov 09 09:09:40.060 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55632/worker-3/master#653da4fd006c97625247acd7e076d0782cdc149b:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55632/master#653da4fd006c97625247acd7e076d0782cdc149b:/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 +653da4fd006c97625247acd7e076d0782cdc149b-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 09 09:09:40.419 INFO blam! 4142fe32eb192bf177268d0f1d6369ce55b82ae4580a9f645f6251860da9b5c7
Nov 09 09:09:40.435 INFO running `"docker" "start" "-a" "4142fe32eb192bf177268d0f1d6369ce55b82ae4580a9f645f6251860da9b5c7"`
Nov 09 09:09:42.060 INFO kablam! usermod: no changes
Nov 09 09:09:42.235 INFO kablam!    Compiling proc-macro2 v0.4.12
Nov 09 09:09:42.235 INFO kablam!    Compiling wasm-bindgen-shared v0.2.16
Nov 09 09:09:42.235 INFO kablam!    Compiling log v0.4.3
Nov 09 09:09:42.235 INFO kablam!    Compiling serde v1.0.71
Nov 09 09:09:42.235 INFO kablam!     Checking rand v0.3.22
Nov 09 09:09:43.844 INFO kablam!     Checking uuid v0.1.18
Nov 09 09:09:45.783 INFO kablam!     Checking mktemp v0.3.1
Nov 09 09:09:47.457 INFO kablam! error[E0658]: use of unstable library feature 'proc_macro_def_site' (see issue #54724)
Nov 09 09:09:47.457 INFO kablam!    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.12/src/unstable.rs:346:27
Nov 09 09:09:47.457 INFO kablam!     |
Nov 09 09:09:47.457 INFO kablam! 346 |             Span::Nightly(proc_macro::Span::def_site())
Nov 09 09:09:47.457 INFO kablam!     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 09 09:09:47.457 INFO kablam!     |
Nov 09 09:09:47.457 INFO kablam!     = help: add #![feature(proc_macro_def_site)] to the crate attributes to enable
Nov 09 09:09:47.457 INFO kablam! 
Nov 09 09:09:47.475 INFO kablam! error: aborting due to previous error
Nov 09 09:09:47.475 INFO kablam! 
Nov 09 09:09:47.475 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Nov 09 09:09:47.485 INFO kablam! error: Could not compile `proc-macro2`.
Nov 09 09:09:47.485 INFO kablam! warning: build failed, waiting for other jobs to finish...
Nov 09 09:09:57.331 INFO kablam! error: build failed
Nov 09 09:09:57.331 INFO kablam! su: No module specific data is present
Nov 09 09:09:58.233 INFO running `"docker" "rm" "-f" "4142fe32eb192bf177268d0f1d6369ce55b82ae4580a9f645f6251860da9b5c7"`
Nov 09 09:09:58.531 INFO blam! 4142fe32eb192bf177268d0f1d6369ce55b82ae4580a9f645f6251860da9b5c7