Oct 31 19:38:25.577 INFO checking timmc/cavern against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Oct 31 19:38:25.577 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-5/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/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 +d7816399d50d407bbce1efe9dbadf8faaaf568fc-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 31 19:38:26.114 INFO blam! 9d2197f4af2777869002235f0844f2bd0eb73f5de17e2f0dcbe46b31054555be
Oct 31 19:38:26.115 INFO running `"docker" "start" "-a" "9d2197f4af2777869002235f0844f2bd0eb73f5de17e2f0dcbe46b31054555be"`
Oct 31 19:38:27.427 INFO kablam! usermod: no changes
Oct 31 19:38:27.630 INFO kablam!     Checking nix v0.9.0
Oct 31 19:38:27.630 INFO kablam!     Checking regex-syntax v0.5.5
Oct 31 19:38:27.636 INFO kablam!     Checking serde_json v1.0.13
Oct 31 19:38:27.641 INFO kablam!     Checking thread_local v0.3.5
Oct 31 19:38:27.642 INFO kablam!    Compiling syn v0.13.1
Oct 31 19:38:27.649 INFO kablam!     Checking shared_child v0.3.2
Oct 31 19:38:41.572 INFO kablam!     Checking regex v0.2.10
Oct 31 19:38:46.576 INFO kablam!    Compiling structopt-derive v0.2.7
Oct 31 19:38:46.631 INFO kablam!     Checking os_pipe v0.6.0
Oct 31 19:38:47.256 INFO kablam!     Checking duct v0.10.0
Oct 31 19:38:51.437 INFO kablam!     Checking structopt v0.2.7
Oct 31 19:38:51.776 INFO kablam!     Checking spelunk v0.1.0 (/source)
Oct 31 19:38:52.577 INFO kablam! warning: unused `#[macro_use]` import
Oct 31 19:38:52.577 INFO kablam!  --> src/main.rs:1:1
Oct 31 19:38:52.577 INFO kablam!   |
Oct 31 19:38:52.577 INFO kablam! 1 | #[macro_use]
Oct 31 19:38:52.578 INFO kablam!   | ^^^^^^^^^^^^
Oct 31 19:38:52.578 INFO kablam!   |
Oct 31 19:38:52.578 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 31 19:38:52.579 INFO kablam! 
Oct 31 19:38:52.704 INFO kablam! warning: unused `#[macro_use]` import
Oct 31 19:38:52.704 INFO kablam!  --> src/main.rs:1:1
Oct 31 19:38:52.704 INFO kablam!   |
Oct 31 19:38:52.704 INFO kablam! 1 | #[macro_use]
Oct 31 19:38:52.704 INFO kablam!   | ^^^^^^^^^^^^
Oct 31 19:38:52.704 INFO kablam!   |
Oct 31 19:38:52.704 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 31 19:38:52.704 INFO kablam! 
Oct 31 19:38:53.184 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 25.71s
Oct 31 19:38:53.196 INFO kablam! su: No module specific data is present
Oct 31 19:38:54.045 INFO running `"docker" "rm" "-f" "9d2197f4af2777869002235f0844f2bd0eb73f5de17e2f0dcbe46b31054555be"`
Oct 31 19:38:54.316 INFO blam! 9d2197f4af2777869002235f0844f2bd0eb73f5de17e2f0dcbe46b31054555be