Nov 06 13:53:34.141 INFO checking skade/rust-three-days-course against master#24e66c28980442a48d9458f1a4f9b76cc722dc8a for pr-55687
Nov 06 13:53:34.143 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55687/worker-1/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-55687/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/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 +24e66c28980442a48d9458f1a4f9b76cc722dc8a-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"`
Nov 06 13:53:34.627 INFO blam! 2a899646a3df6e838650109f25a92ba373e14bba41610f2a8d4e01f6429e23f4
Nov 06 13:53:34.628 INFO running `"docker" "start" "-a" "2a899646a3df6e838650109f25a92ba373e14bba41610f2a8d4e01f6429e23f4"`
Nov 06 13:53:36.024 INFO kablam! usermod: no changes
Nov 06 13:53:36.141 INFO kablam!     Checking serde v0.9.12
Nov 06 13:53:36.141 INFO kablam!     Checking shells v0.2.0
Nov 06 13:53:36.157 INFO kablam!    Compiling serde_codegen_internals v0.14.2
Nov 06 13:53:39.816 INFO kablam!    Compiling serde_derive v0.9.12
Nov 06 13:53:52.532 INFO kablam!     Checking serde_json v0.9.9
Nov 06 13:53:54.428 INFO kablam!     Checking pandoc_types v0.1.0
Nov 06 13:53:57.544 INFO kablam!     Checking tasks v0.1.0 (/source)
Nov 06 13:54:00.900 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 24.86s
Nov 06 13:54:00.916 INFO kablam! su: No module specific data is present
Nov 06 13:54:02.208 INFO running `"docker" "rm" "-f" "2a899646a3df6e838650109f25a92ba373e14bba41610f2a8d4e01f6429e23f4"`
Nov 06 13:54:02.472 INFO blam! 2a899646a3df6e838650109f25a92ba373e14bba41610f2a8d4e01f6429e23f4