Nov 01 16:11:21.148 INFO checking simple_json-0.2.3 against master#05812fa8c588473f03e3fa7cf59cd84f4f37c715 for pr-55538
Nov 01 16:11:21.148 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-0/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-55538/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/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 +05812fa8c588473f03e3fa7cf59cd84f4f37c715-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 01 16:11:21.349 INFO blam! 518c4897e98b77bd4b8e9eb081607c7e14b76198dce7fe14200e8e6a2889d57c
Nov 01 16:11:21.350 INFO running `"docker" "start" "-a" "518c4897e98b77bd4b8e9eb081607c7e14b76198dce7fe14200e8e6a2889d57c"`
Nov 01 16:11:21.901 INFO kablam! usermod: no changes
Nov 01 16:11:21.945 INFO kablam!     Checking simple_json v0.2.3 (/source)
Nov 01 16:11:24.384 INFO kablam! warning: unused import: `Number`
Nov 01 16:11:24.384 INFO kablam!  --> tests/to_string.rs:4:26
Nov 01 16:11:24.384 INFO kablam!   |
Nov 01 16:11:24.384 INFO kablam! 4 | use simple_json::{ Json, Number };
Nov 01 16:11:24.384 INFO kablam!   |                          ^^^^^^
Nov 01 16:11:24.385 INFO kablam!   |
Nov 01 16:11:24.385 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 01 16:11:24.385 INFO kablam! 
Nov 01 16:11:24.826 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.89s
Nov 01 16:11:24.830 INFO kablam! su: No module specific data is present
Nov 01 16:11:25.149 INFO running `"docker" "rm" "-f" "518c4897e98b77bd4b8e9eb081607c7e14b76198dce7fe14200e8e6a2889d57c"`
Nov 01 16:11:25.322 INFO blam! 518c4897e98b77bd4b8e9eb081607c7e14b76198dce7fe14200e8e6a2889d57c