Nov 01 10:28:50.469 INFO checking Qwertee/Kopier against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Nov 01 10:28:50.469 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-4/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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"`
Nov 01 10:28:50.966 INFO blam! d5ec83a137b975b3bba985d86db5bca27533af812e36fb3e4fa20b4202981c75
Nov 01 10:28:50.968 INFO running `"docker" "start" "-a" "d5ec83a137b975b3bba985d86db5bca27533af812e36fb3e4fa20b4202981c75"`
Nov 01 10:28:52.552 INFO kablam! usermod: no changes
Nov 01 10:28:52.660 INFO kablam!     Checking kopier v0.1.0 (/source)
Nov 01 10:28:53.184 INFO kablam! warning: variable does not need to be mutable
Nov 01 10:28:53.184 INFO kablam!   --> src/main.rs:22:9
Nov 01 10:28:53.184 INFO kablam!    |
Nov 01 10:28:53.185 INFO kablam! 22 |     let mut dest_file = try!(File::create(dest_string));
Nov 01 10:28:53.185 INFO kablam!    |         ----^^^^^^^^^
Nov 01 10:28:53.185 INFO kablam!    |         |
Nov 01 10:28:53.185 INFO kablam!    |         help: remove this `mut`
Nov 01 10:28:53.186 INFO kablam!    |
Nov 01 10:28:53.186 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 01 10:28:53.186 INFO kablam! 
Nov 01 10:28:53.192 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 10:28:53.193 INFO kablam!   --> src/main.rs:32:5
Nov 01 10:28:53.193 INFO kablam!    |
Nov 01 10:28:53.193 INFO kablam! 32 |     f.write_all(data.as_bytes());
Nov 01 10:28:53.193 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 10:28:53.194 INFO kablam!    |
Nov 01 10:28:53.194 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 01 10:28:53.194 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 10:28:53.195 INFO kablam! 
Nov 01 10:28:53.593 INFO kablam! warning: variable does not need to be mutable
Nov 01 10:28:53.593 INFO kablam!   --> src/main.rs:22:9
Nov 01 10:28:53.594 INFO kablam!    |
Nov 01 10:28:53.594 INFO kablam! 22 |     let mut dest_file = try!(File::create(dest_string));
Nov 01 10:28:53.594 INFO kablam!    |         ----^^^^^^^^^
Nov 01 10:28:53.595 INFO kablam!    |         |
Nov 01 10:28:53.595 INFO kablam!    |         help: remove this `mut`
Nov 01 10:28:53.595 INFO kablam!    |
Nov 01 10:28:53.596 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 01 10:28:53.596 INFO kablam! 
Nov 01 10:28:53.605 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 10:28:53.605 INFO kablam!   --> src/main.rs:32:5
Nov 01 10:28:53.605 INFO kablam!    |
Nov 01 10:28:53.606 INFO kablam! 32 |     f.write_all(data.as_bytes());
Nov 01 10:28:53.606 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 10:28:53.607 INFO kablam!    |
Nov 01 10:28:53.607 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 01 10:28:53.607 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 10:28:53.608 INFO kablam! 
Nov 01 10:28:53.629 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
Nov 01 10:28:53.634 INFO kablam! su: No module specific data is present
Nov 01 10:28:54.282 INFO running `"docker" "rm" "-f" "d5ec83a137b975b3bba985d86db5bca27533af812e36fb3e4fa20b4202981c75"`
Nov 01 10:28:54.564 INFO blam! d5ec83a137b975b3bba985d86db5bca27533af812e36fb3e4fa20b4202981c75