Oct 26 22:37:33.933 INFO checking qingxiang-jia/learn-rust against try#19f01b935b91481fd445b16b533d2f87661bf12e for pr-55192-2
Oct 26 22:37:33.935 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192-2/worker-4/try#19f01b935b91481fd445b16b533d2f87661bf12e:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-4/pr-55192-2/try#19f01b935b91481fd445b16b533d2f87661bf12e:/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 +19f01b935b91481fd445b16b533d2f87661bf12e-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"`
Oct 26 22:37:34.327 INFO blam! c547707795ce9a863ec5ed01cd3f3700047bfd572a87964db6fd2350517a330f
Oct 26 22:37:34.330 INFO running `"docker" "start" "-a" "c547707795ce9a863ec5ed01cd3f3700047bfd572a87964db6fd2350517a330f"`
Oct 26 22:37:35.347 INFO kablam! usermod: no changes
Oct 26 22:37:35.415 INFO kablam!    Compiling proc-macro2 v0.3.3
Oct 26 22:37:35.415 INFO kablam!     Checking serde_json v1.0.13
Oct 26 22:37:38.623 INFO kablam!    Compiling quote v0.5.1
Oct 26 22:37:40.032 INFO kablam!    Compiling syn v0.13.1
Oct 26 22:37:46.715 INFO kablam!    Compiling serde_derive_internals v0.23.0
Oct 26 22:37:50.713 INFO kablam!    Compiling serde_derive v1.0.37
Oct 26 22:38:01.304 INFO kablam!     Checking learn_rust v0.1.0 (/source)
Oct 26 22:38:02.516 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 27.15s
Oct 26 22:38:02.527 INFO kablam! su: No module specific data is present
Oct 26 22:38:04.131 INFO running `"docker" "rm" "-f" "c547707795ce9a863ec5ed01cd3f3700047bfd572a87964db6fd2350517a330f"`
Oct 26 22:38:04.444 INFO blam! c547707795ce9a863ec5ed01cd3f3700047bfd572a87964db6fd2350517a330f