Dec 17 22:24:49.908 INFO checking jeremyBanks/tprime against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 22:24:49.908 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/jeremyBanks/tprime:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 22:24:50.366 INFO [stdout] 110d15c646c977a93d04e60db0503e98cf3335cf2681a2a146b38a44951a4768
Dec 17 22:24:50.368 INFO running `"docker" "start" "-a" "110d15c646c977a93d04e60db0503e98cf3335cf2681a2a146b38a44951a4768"`
Dec 17 22:24:52.460 INFO [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
Dec 17 22:24:52.616 INFO [stderr]    Compiling wasm-bindgen-shared v0.2.15
Dec 17 22:24:52.629 INFO [stderr]     Checking rand_core v0.2.1
Dec 17 22:24:52.630 INFO [stderr]     Checking web-sys v0.0.1
Dec 17 22:24:52.630 INFO [stderr]    Compiling proc-macro2 v0.4.9
Dec 17 22:24:52.677 INFO [stderr]    Compiling serde_json v1.0.24
Dec 17 22:24:52.677 INFO [stderr]    Compiling serdebug v1.0.5
Dec 17 22:24:54.652 INFO [stderr]     Checking rand v0.5.5
Dec 17 22:24:55.164 INFO [stderr] error[E0658]: use of unstable library feature 'proc_macro_def_site' (see issue #54724)
Dec 17 22:24:55.164 INFO [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.9/src/unstable.rs:347:27
Dec 17 22:24:55.164 INFO [stderr]     |
Dec 17 22:24:55.164 INFO [stderr] 347 |             Span::Nightly(proc_macro::Span::def_site())
Dec 17 22:24:55.164 INFO [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:24:55.164 INFO [stderr]     |
Dec 17 22:24:55.164 INFO [stderr]     = help: add #![feature(proc_macro_def_site)] to the crate attributes to enable
Dec 17 22:24:55.164 INFO [stderr] 
Dec 17 22:24:55.275 INFO [stderr] error: aborting due to previous error
Dec 17 22:24:55.275 INFO [stderr] 
Dec 17 22:24:55.275 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Dec 17 22:24:55.275 INFO [stderr] error: Could not compile `proc-macro2`.
Dec 17 22:24:55.275 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 17 22:25:00.070 INFO [stderr] error: build failed
Dec 17 22:25:01.444 INFO running `"docker" "inspect" "110d15c646c977a93d04e60db0503e98cf3335cf2681a2a146b38a44951a4768"`
Dec 17 22:25:01.794 INFO running `"docker" "rm" "-f" "110d15c646c977a93d04e60db0503e98cf3335cf2681a2a146b38a44951a4768"`
Dec 17 22:25:02.212 INFO [stdout] 110d15c646c977a93d04e60db0503e98cf3335cf2681a2a146b38a44951a4768