Dec 02 11:54:42.620 INFO testing vectorize_struct-0.1.3 against 1.30.1 for beta-1.31-5
Dec 02 11:54:42.620 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-3/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/beta-1.31-5/1.30.1:/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 +1.30.1 build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 11:54:43.090 INFO [stdout] 7ffc6a5c4310b19010527a78a7e5b7827927fbd2b391b6887e442cb1f2e289bd
Dec 02 11:54:43.092 INFO running `"docker" "start" "-a" "7ffc6a5c4310b19010527a78a7e5b7827927fbd2b391b6887e442cb1f2e289bd"`
Dec 02 11:54:44.779 INFO [stderr] usermod: no changes
Dec 02 11:54:44.879 INFO [stderr]    Compiling unicode-xid v0.1.0
Dec 02 11:54:45.304 INFO [stderr]    Compiling proc-macro2 v0.4.24
Dec 02 11:54:51.916 INFO [stderr]    Compiling quote v0.6.10
Dec 02 11:54:56.526 INFO [stderr]    Compiling syn v0.15.22
Dec 02 11:55:16.398 INFO [stderr]    Compiling vectorize_struct v0.1.3 (/source)
Dec 02 11:55:21.878 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.06s
Dec 02 11:55:21.881 INFO [stderr] su: No module specific data is present
Dec 02 11:55:22.820 INFO running `"docker" "inspect" "7ffc6a5c4310b19010527a78a7e5b7827927fbd2b391b6887e442cb1f2e289bd"`
Dec 02 11:55:23.067 INFO running `"docker" "rm" "-f" "7ffc6a5c4310b19010527a78a7e5b7827927fbd2b391b6887e442cb1f2e289bd"`
Dec 02 11:55:23.352 INFO [stdout] 7ffc6a5c4310b19010527a78a7e5b7827927fbd2b391b6887e442cb1f2e289bd
Dec 02 11:55:23.357 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-3/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/beta-1.31-5/1.30.1:/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 +1.30.1 test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 11:55:23.784 INFO [stdout] fc9da0b668544e2a117a11b7e8b15ded28de6906b947545f2f43638752e293d6
Dec 02 11:55:23.786 INFO running `"docker" "start" "-a" "fc9da0b668544e2a117a11b7e8b15ded28de6906b947545f2f43638752e293d6"`
Dec 02 11:55:24.959 INFO [stderr] usermod: no changes
Dec 02 11:55:25.024 INFO [stderr]    Compiling vectorize_struct v0.1.3 (/source)
Dec 02 11:55:26.279 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 11:55:26.280 INFO [stderr]  --> tests/test.rs:1:1
Dec 02 11:55:26.280 INFO [stderr]   |
Dec 02 11:55:26.280 INFO [stderr] 1 | #![feature(specialization)]
Dec 02 11:55:26.280 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 11:55:26.280 INFO [stderr] 
Dec 02 11:55:26.280 INFO [stderr] error: aborting due to previous error
Dec 02 11:55:26.280 INFO [stderr] 
Dec 02 11:55:26.280 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 11:55:26.297 INFO [stderr] error: Could not compile `vectorize_struct`.
Dec 02 11:55:26.297 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 02 11:55:29.586 INFO [stderr] error: build failed
Dec 02 11:55:29.587 INFO [stderr] su: No module specific data is present
Dec 02 11:55:30.408 INFO running `"docker" "inspect" "fc9da0b668544e2a117a11b7e8b15ded28de6906b947545f2f43638752e293d6"`
Dec 02 11:55:30.624 INFO running `"docker" "rm" "-f" "fc9da0b668544e2a117a11b7e8b15ded28de6906b947545f2f43638752e293d6"`
Dec 02 11:55:30.875 INFO [stdout] fc9da0b668544e2a117a11b7e8b15ded28de6906b947545f2f43638752e293d6