[INFO] updating cached repository hardliner66/riker_test
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/hardliner66/riker_test
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/hardliner66/riker_test" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/hardliner66/riker_test"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/hardliner66/riker_test'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/hardliner66/riker_test" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/hardliner66/riker_test"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/hardliner66/riker_test'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8cbeb298a306c4bbcde5e84d92e9dbc50fd38fcc
[INFO] sha for GitHub repo hardliner66/riker_test: 8cbeb298a306c4bbcde5e84d92e9dbc50fd38fcc
[INFO] validating manifest of hardliner66/riker_test on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of hardliner66/riker_test on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing hardliner66/riker_test
[INFO] finished frobbing hardliner66/riker_test
[INFO] frobbed toml for hardliner66/riker_test written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/hardliner66/riker_test/Cargo.toml
[INFO] started frobbing hardliner66/riker_test
[INFO] finished frobbing hardliner66/riker_test
[INFO] frobbed toml for hardliner66/riker_test written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/hardliner66/riker_test/Cargo.toml
[INFO] crate hardliner66/riker_test already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking hardliner66/riker_test against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-7/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/hardliner66/riker_test:/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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a9ad278551923bd6ef7ecc746df494a498eee9e7a5152a0a22d3561aa017ce72
[INFO] running `"docker" "start" "-a" "a9ad278551923bd6ef7ecc746df494a498eee9e7a5152a0a22d3561aa017ce72"`
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.17
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]     Checking runtime-fmt v0.3.0
[INFO] [stderr]     Checking stringlit v2.0.0
[INFO] [stderr]     Checking fern v0.5.8
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking uuid v0.6.5
[INFO] [stderr]     Checking serde-hjson v0.8.2
[INFO] [stderr] error[E0658]: use of unstable library feature 'unicode_internals'
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/runtime-fmt-0.3.0/src/fmt_macros.rs:422:34
[INFO] [stderr]     |
[INFO] [stderr] 422 |             Some(&(pos, c)) if c.is_xid_start() => {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: add `#![feature(unicode_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'unicode_internals'
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/runtime-fmt-0.3.0/src/fmt_macros.rs:431:18
[INFO] [stderr]     |
[INFO] [stderr] 431 |             if c.is_xid_continue() {
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: add `#![feature(unicode_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0658`.
[INFO] [stderr] error: Could not compile `runtime-fmt`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "a9ad278551923bd6ef7ecc746df494a498eee9e7a5152a0a22d3561aa017ce72"`
[INFO] running `"docker" "rm" "-f" "a9ad278551923bd6ef7ecc746df494a498eee9e7a5152a0a22d3561aa017ce72"`
[INFO] [stdout] a9ad278551923bd6ef7ecc746df494a498eee9e7a5152a0a22d3561aa017ce72