Nov 01 03:17:30.294 INFO checking jeremyBanks/tprime against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Nov 01 03:17:30.294 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-0/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/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 +d7816399d50d407bbce1efe9dbadf8faaaf568fc-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 01 03:17:30.683 INFO blam! ddefe109039d2e326533bb3d4392786ef207d5b02004edcb90b767ba3f3e2216
Nov 01 03:17:30.689 INFO running `"docker" "start" "-a" "ddefe109039d2e326533bb3d4392786ef207d5b02004edcb90b767ba3f3e2216"`
Nov 01 03:17:31.615 INFO kablam! usermod: no changes
Nov 01 03:17:31.652 INFO kablam! warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
Nov 01 03:17:31.816 INFO kablam!    Compiling wasm-bindgen-shared v0.2.15
Nov 01 03:17:31.828 INFO kablam!     Checking rand_core v0.2.1
Nov 01 03:17:31.828 INFO kablam!     Checking web-sys v0.0.1
Nov 01 03:17:31.828 INFO kablam!    Compiling proc-macro2 v0.4.9
Nov 01 03:17:31.828 INFO kablam!    Compiling serde v1.0.71
Nov 01 03:17:31.828 INFO kablam!     Checking serde_json v1.0.24
Nov 01 03:17:31.828 INFO kablam!    Compiling serdebug v1.0.5
Nov 01 03:17:34.217 INFO kablam!     Checking rand v0.5.5
Nov 01 03:17:38.164 INFO kablam! error[E0658]: use of unstable library feature 'proc_macro_def_site' (see issue #54724)
Nov 01 03:17:38.164 INFO kablam!    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.9/src/unstable.rs:347:27
Nov 01 03:17:38.164 INFO kablam!     |
Nov 01 03:17:38.164 INFO kablam! 347 |             Span::Nightly(proc_macro::Span::def_site())
Nov 01 03:17:38.164 INFO kablam!     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 03:17:38.164 INFO kablam!     |
Nov 01 03:17:38.164 INFO kablam!     = help: add #![feature(proc_macro_def_site)] to the crate attributes to enable
Nov 01 03:17:38.164 INFO kablam! 
Nov 01 03:17:38.300 INFO kablam! error: aborting due to previous error
Nov 01 03:17:38.300 INFO kablam! 
Nov 01 03:17:38.300 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Nov 01 03:17:38.341 INFO kablam! error: Could not compile `proc-macro2`.
Nov 01 03:17:38.342 INFO kablam! warning: build failed, waiting for other jobs to finish...
Nov 01 03:17:48.992 INFO kablam! error: build failed
Nov 01 03:17:48.993 INFO kablam! su: No module specific data is present
Nov 01 03:17:49.288 INFO running `"docker" "rm" "-f" "ddefe109039d2e326533bb3d4392786ef207d5b02004edcb90b767ba3f3e2216"`
Nov 01 03:17:49.424 INFO blam! ddefe109039d2e326533bb3d4392786ef207d5b02004edcb90b767ba3f3e2216