Dec 11 15:25:37.709 INFO checking kirjavascript/duplex against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 15:25:37.709 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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"`
Dec 11 15:25:38.064 INFO [stdout] 115f611e97f1394a41b0873979330bfa1f59bf4ade4a16ba6e4a46a0e28776c2
Dec 11 15:25:38.068 INFO running `"docker" "start" "-a" "115f611e97f1394a41b0873979330bfa1f59bf4ade4a16ba6e4a46a0e28776c2"`
Dec 11 15:25:39.010 INFO [stderr] usermod: no changes
Dec 11 15:25:39.137 INFO [stderr]     Checking memchr v2.1.1
Dec 11 15:25:39.937 INFO [stderr]     Checking nom v4.1.1
Dec 11 15:25:41.836 INFO [stderr]     Checking duplex v0.1.0 (/source)
Dec 11 15:25:42.940 INFO [stderr] error[E0658]: The attribute `js_export` is currently unknown to the compiler and may have meaning added to it in the future (see issue #29642)
Dec 11 15:25:42.940 INFO [stderr]  --> src/web.rs:6:3
Dec 11 15:25:42.940 INFO [stderr]   |
Dec 11 15:25:42.940 INFO [stderr] 6 | #[js_export]
Dec 11 15:25:42.940 INFO [stderr]   |   ^^^^^^^^^
Dec 11 15:25:42.940 INFO [stderr]   |
Dec 11 15:25:42.940 INFO [stderr]   = help: add #![feature(custom_attribute)] to the crate attributes to enable
Dec 11 15:25:42.940 INFO [stderr] 
Dec 11 15:25:42.947 INFO [stderr] error: aborting due to previous error
Dec 11 15:25:42.947 INFO [stderr] 
Dec 11 15:25:42.947 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Dec 11 15:25:42.947 INFO [stderr] error[E0658]: The attribute `js_export` is currently unknown to the compiler and may have meaning added to it in the future (see issue #29642)
Dec 11 15:25:42.947 INFO [stderr]  --> src/web.rs:6:3
Dec 11 15:25:42.947 INFO [stderr]   |
Dec 11 15:25:42.947 INFO [stderr] 6 | #[js_export]
Dec 11 15:25:42.947 INFO [stderr]   |   ^^^^^^^^^
Dec 11 15:25:42.947 INFO [stderr]   |
Dec 11 15:25:42.948 INFO [stderr]   = help: add #![feature(custom_attribute)] to the crate attributes to enable
Dec 11 15:25:42.948 INFO [stderr] 
Dec 11 15:25:42.956 INFO [stderr] error: aborting due to previous error
Dec 11 15:25:42.956 INFO [stderr] 
Dec 11 15:25:42.956 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Dec 11 15:25:42.958 INFO [stderr] error: Could not compile `duplex`.
Dec 11 15:25:42.958 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 11 15:25:42.965 INFO [stderr] error: Could not compile `duplex`.
Dec 11 15:25:42.966 INFO [stderr] 
Dec 11 15:25:42.966 INFO [stderr] To learn more, run the command again with --verbose.
Dec 11 15:25:42.968 INFO [stderr] su: No module specific data is present
Dec 11 15:25:44.282 INFO running `"docker" "inspect" "115f611e97f1394a41b0873979330bfa1f59bf4ade4a16ba6e4a46a0e28776c2"`
Dec 11 15:25:44.520 INFO running `"docker" "rm" "-f" "115f611e97f1394a41b0873979330bfa1f59bf4ade4a16ba6e4a46a0e28776c2"`
Dec 11 15:25:44.794 INFO [stdout] 115f611e97f1394a41b0873979330bfa1f59bf4ade4a16ba6e4a46a0e28776c2