Dec 15 05:01:49.064 INFO testing mdbook-0.2.2 against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 15 05:01:49.064 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-5/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-alt build --frozen" "-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 15 05:01:49.855 INFO [stdout] 87fbcdcf2594146b90fe5141ecb8f036bbd9e4e57dec87137535dd612f7901e9
Dec 15 05:01:49.857 INFO running `"docker" "start" "-a" "87fbcdcf2594146b90fe5141ecb8f036bbd9e4e57dec87137535dd612f7901e9"`
Dec 15 05:01:51.067 INFO [stderr] usermod: no changes
Dec 15 05:01:51.355 INFO [stderr]    Compiling mdbook v0.2.2 (/source)
Dec 15 05:02:32.792 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.70s
Dec 15 05:02:32.813 INFO [stderr] su: No module specific data is present
Dec 15 05:02:33.785 INFO running `"docker" "inspect" "87fbcdcf2594146b90fe5141ecb8f036bbd9e4e57dec87137535dd612f7901e9"`
Dec 15 05:02:34.117 INFO running `"docker" "rm" "-f" "87fbcdcf2594146b90fe5141ecb8f036bbd9e4e57dec87137535dd612f7901e9"`
Dec 15 05:02:34.467 INFO [stdout] 87fbcdcf2594146b90fe5141ecb8f036bbd9e4e57dec87137535dd612f7901e9
Dec 15 05:02:34.471 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-5/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen --no-run" "-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 15 05:02:34.939 INFO [stdout] 7acb949d61c16cb9e04bc8c9b8bba9838336f77625bad1a3fa9227b136d5c592
Dec 15 05:02:34.943 INFO running `"docker" "start" "-a" "7acb949d61c16cb9e04bc8c9b8bba9838336f77625bad1a3fa9227b136d5c592"`
Dec 15 05:02:36.614 INFO [stderr] usermod: no changes
Dec 15 05:02:37.075 INFO [stderr]    Compiling mdbook v0.2.2 (/source)
Dec 15 05:03:48.291 INFO [stderr] warning: struct is never constructed: `Deemphasize`
Dec 15 05:03:48.291 INFO [stderr]   --> examples/de-emphasize.rs:20:1
Dec 15 05:03:48.291 INFO [stderr]    |
Dec 15 05:03:48.291 INFO [stderr] 20 | struct Deemphasize;
Dec 15 05:03:48.291 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^
Dec 15 05:03:48.291 INFO [stderr]    |
Dec 15 05:03:48.291 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 15 05:03:48.291 INFO [stderr] 
Dec 15 05:03:55.128 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 18s
Dec 15 05:03:55.155 INFO [stderr] su: No module specific data is present
Dec 15 05:03:55.900 INFO running `"docker" "inspect" "7acb949d61c16cb9e04bc8c9b8bba9838336f77625bad1a3fa9227b136d5c592"`
Dec 15 05:03:56.190 INFO running `"docker" "rm" "-f" "7acb949d61c16cb9e04bc8c9b8bba9838336f77625bad1a3fa9227b136d5c592"`
Dec 15 05:03:56.419 INFO [stdout] 7acb949d61c16cb9e04bc8c9b8bba9838336f77625bad1a3fa9227b136d5c592