Nov 30 08:59:42.454 INFO checking Qwertee/Kopier against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 30 08:59:42.454 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-1/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/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 +a49316ddc99d9d595193557fc899f6c52e4d9af9-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 30 08:59:42.819 INFO [stdout] 2503cac2398bc910971e42fb231b690a98d82732cf313746be8ae11c9d517bfe
Nov 30 08:59:42.821 INFO running `"docker" "start" "-a" "2503cac2398bc910971e42fb231b690a98d82732cf313746be8ae11c9d517bfe"`
Nov 30 08:59:44.692 INFO [stderr] usermod: no changes
Nov 30 08:59:44.780 INFO [stderr]     Checking kopier v0.1.0 (/source)
Nov 30 08:59:45.444 INFO [stderr] warning: variable does not need to be mutable
Nov 30 08:59:45.444 INFO [stderr]   --> src/main.rs:22:9
Nov 30 08:59:45.444 INFO [stderr]    |
Nov 30 08:59:45.444 INFO [stderr] 22 |     let mut dest_file = try!(File::create(dest_string));
Nov 30 08:59:45.444 INFO [stderr]    |         ----^^^^^^^^^
Nov 30 08:59:45.444 INFO [stderr]    |         |
Nov 30 08:59:45.444 INFO [stderr]    |         help: remove this `mut`
Nov 30 08:59:45.444 INFO [stderr]    |
Nov 30 08:59:45.444 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 08:59:45.444 INFO [stderr] 
Nov 30 08:59:45.448 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 08:59:45.448 INFO [stderr]   --> src/main.rs:32:5
Nov 30 08:59:45.448 INFO [stderr]    |
Nov 30 08:59:45.448 INFO [stderr] 32 |     f.write_all(data.as_bytes());
Nov 30 08:59:45.448 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 08:59:45.448 INFO [stderr]    |
Nov 30 08:59:45.448 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 08:59:45.448 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 08:59:45.448 INFO [stderr] 
Nov 30 08:59:45.456 INFO [stderr] warning: variable does not need to be mutable
Nov 30 08:59:45.460 INFO [stderr]   --> src/main.rs:22:9
Nov 30 08:59:45.460 INFO [stderr]    |
Nov 30 08:59:45.460 INFO [stderr] 22 |     let mut dest_file = try!(File::create(dest_string));
Nov 30 08:59:45.460 INFO [stderr]    |         ----^^^^^^^^^
Nov 30 08:59:45.460 INFO [stderr]    |         |
Nov 30 08:59:45.460 INFO [stderr]    |         help: remove this `mut`
Nov 30 08:59:45.460 INFO [stderr]    |
Nov 30 08:59:45.460 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 08:59:45.460 INFO [stderr] 
Nov 30 08:59:45.476 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 08:59:45.476 INFO [stderr]   --> src/main.rs:32:5
Nov 30 08:59:45.476 INFO [stderr]    |
Nov 30 08:59:45.476 INFO [stderr] 32 |     f.write_all(data.as_bytes());
Nov 30 08:59:45.476 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 08:59:45.476 INFO [stderr]    |
Nov 30 08:59:45.476 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 08:59:45.476 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 08:59:45.476 INFO [stderr] 
Nov 30 08:59:45.496 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
Nov 30 08:59:45.498 INFO [stderr] su: No module specific data is present
Nov 30 08:59:46.130 INFO running `"docker" "inspect" "2503cac2398bc910971e42fb231b690a98d82732cf313746be8ae11c9d517bfe"`
Nov 30 08:59:46.412 INFO running `"docker" "rm" "-f" "2503cac2398bc910971e42fb231b690a98d82732cf313746be8ae11c9d517bfe"`
Nov 30 08:59:46.730 INFO [stdout] 2503cac2398bc910971e42fb231b690a98d82732cf313746be8ae11c9d517bfe