Nov 28 05:45:32.097 INFO documenting Evanjs/grkcheck against master#6bfb46e4ac9a2704f06de1a2ff7a4612cd70c8cb for pr-55318
Nov 28 05:45:32.097 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55318/worker-6/master#6bfb46e4ac9a2704f06de1a2ff7a4612cd70c8cb:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-55318/master#6bfb46e4ac9a2704f06de1a2ff7a4612cd70c8cb:/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 +6bfb46e4ac9a2704f06de1a2ff7a4612cd70c8cb-alt doc --frozen --no-deps --document-private-items" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 28 05:45:32.403 INFO [stdout] 45efc7bdb99d4715019ed2d030aae1b05ee95575fa817a543fe60928b851320e
Nov 28 05:45:32.403 INFO running `"docker" "start" "-a" "45efc7bdb99d4715019ed2d030aae1b05ee95575fa817a543fe60928b851320e"`
Nov 28 05:45:33.231 INFO [stderr] usermod: no changes
Nov 28 05:45:33.647 INFO [stderr]    Compiling num-traits v0.2.1
Nov 28 05:45:33.655 INFO [stderr]     Checking memchr v0.1.11
Nov 28 05:45:33.655 INFO [stderr]     Checking dtoa-short v0.3.1
Nov 28 05:45:33.655 INFO [stderr]     Checking debug_unreachable v0.1.1
Nov 28 05:45:33.796 INFO [stderr]     Checking nix v0.10.0
Nov 28 05:45:33.796 INFO [stderr]     Checking thread-id v2.0.0
Nov 28 05:45:33.796 INFO [stderr]     Checking nix v0.7.0
Nov 28 05:45:33.796 INFO [stderr]    Compiling string_cache v0.7.1
Nov 28 05:45:34.207 INFO [stderr]    Compiling selectors v0.19.0
Nov 28 05:45:34.239 INFO [stderr]    Compiling cssparser-macros v0.3.0
Nov 28 05:45:34.674 INFO [stderr]     Checking futf v0.1.3
Nov 28 05:45:34.929 INFO [stderr]     Checking aho-corasick v0.5.3
Nov 28 05:45:36.731 INFO [stderr]     Checking thread_local v0.2.7
Nov 28 05:45:36.731 INFO [stderr]     Checking tendril v0.4.0
Nov 28 05:45:38.935 INFO [stderr]     Checking regex v0.1.80
Nov 28 05:45:39.183 INFO [stderr]    Compiling serde_json v1.0.10
Nov 28 05:45:44.663 INFO [stderr]     Checking semver-parser v0.6.2
Nov 28 05:45:45.917 INFO [stderr]     Checking cssparser v0.23.2
Nov 28 05:45:46.699 INFO [stderr]     Checking semver v0.4.1
Nov 28 05:45:49.855 INFO [stderr]    Compiling markup5ever v0.7.2
Nov 28 05:45:50.411 INFO [stderr]     Checking linuxver v0.1.0
Nov 28 05:46:02.971 INFO [stderr]     Checking html5ever v0.22.0
Nov 28 05:46:06.291 INFO [stderr]     Checking kuchiki v0.7.0
Nov 28 05:46:08.484 INFO [stderr]  Documenting krcheck v0.1.0 (/source)
Nov 28 05:46:13.109 INFO [stderr] error[E0635]: unknown feature `alloc_system`
Nov 28 05:46:13.109 INFO [stderr]  --> src/main.rs:1:12
Nov 28 05:46:13.109 INFO [stderr]   |
Nov 28 05:46:13.109 INFO [stderr] 1 | #![feature(alloc_system)]
Nov 28 05:46:13.109 INFO [stderr]   |            ^^^^^^^^^^^^
Nov 28 05:46:13.109 INFO [stderr] 
Nov 28 05:46:13.109 INFO [stderr] error: Compilation failed, aborting rustdoc
Nov 28 05:46:13.109 INFO [stderr] 
Nov 28 05:46:13.143 INFO [stderr] error: Could not document `krcheck`.
Nov 28 05:46:13.143 INFO [stderr] 
Nov 28 05:46:13.143 INFO [stderr] Caused by:
Nov 28 05:46:13.144 INFO [stderr]   process didn't exit successfully: `rustdoc --crate-name krcheck src/main.rs --color never -o /target/doc --document-private-items -L dependency=/target/debug/deps --extern html5ever=/target/debug/deps/libhtml5ever-0e053ca7f65b51f8.rmeta --extern kuchiki=/target/debug/deps/libkuchiki-e2a74dcaf6fff4a1.rmeta --extern libc=/target/debug/deps/liblibc-21ea76b9d9dafa15.rmeta --extern linuxver=/target/debug/deps/liblinuxver-957b04d83e138d32.rmeta --extern nix=/target/debug/deps/libnix-4c10e20b2cd773ad.rmeta --extern reqwest=/target/debug/deps/libreqwest-67cd74125e8458bc.rmeta --extern semver=/target/debug/deps/libsemver-41d5ab78d0715d2c.rmeta --cap-lints=forbid` (exit code: 1)
Nov 28 05:46:13.159 INFO [stderr] su: No module specific data is present
Nov 28 05:46:14.007 INFO running `"docker" "inspect" "45efc7bdb99d4715019ed2d030aae1b05ee95575fa817a543fe60928b851320e"`
Nov 28 05:46:14.311 INFO running `"docker" "rm" "-f" "45efc7bdb99d4715019ed2d030aae1b05ee95575fa817a543fe60928b851320e"`
Nov 28 05:46:14.605 INFO [stdout] 45efc7bdb99d4715019ed2d030aae1b05ee95575fa817a543fe60928b851320e