Nov 06 18:53:05.090 INFO checking kyren/luster against master#24e66c28980442a48d9458f1a4f9b76cc722dc8a for pr-55687
Nov 06 18:53:05.090 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55687/worker-7/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 18:53:05.558 INFO blam! a444532415cf1f8dd85794e9cb049251b1dc1a1f2ff15660357c5cc64bc123a9
Nov 06 18:53:05.560 INFO running `"docker" "start" "-a" "a444532415cf1f8dd85794e9cb049251b1dc1a1f2ff15660357c5cc64bc123a9"`
Nov 06 18:53:07.487 INFO kablam! usermod: no changes
Nov 06 18:53:07.720 INFO kablam!     Checking proc-macro2 v0.3.8
Nov 06 18:53:07.720 INFO kablam!    Compiling syn v0.13.11
Nov 06 18:53:11.573 INFO kablam!     Checking quote v0.5.2
Nov 06 18:53:30.460 INFO kablam!    Compiling synstructure v0.8.1
Nov 06 18:53:34.188 INFO kablam!     Checking gc-arena-derive v0.1.0 (/source/gc-arena/gc-arena-derive)
Nov 06 18:53:40.512 INFO kablam!     Checking gc-arena v0.1.0 (/source/gc-arena)
Nov 06 18:53:42.208 INFO kablam!     Checking luster v0.1.0 (/source)
Nov 06 18:53:50.536 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 06 18:53:50.536 INFO kablam!   --> tests/suite.rs:26:17
Nov 06 18:53:50.536 INFO kablam!    |
Nov 06 18:53:50.536 INFO kablam! 26 |                 writeln!(stdout, "parsing file {:?}", path);
Nov 06 18:53:50.536 INFO kablam!    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 06 18:53:50.556 INFO kablam!    |
Nov 06 18:53:50.556 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 06 18:53:50.556 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 06 18:53:50.556 INFO kablam!    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 06 18:53:50.556 INFO kablam! 
Nov 06 18:53:50.557 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 06 18:53:50.557 INFO kablam!   --> tests/suite.rs:28:21
Nov 06 18:53:50.557 INFO kablam!    |
Nov 06 18:53:50.557 INFO kablam! 28 |                     writeln!(stdout, "error encountered: {:?}", err);
Nov 06 18:53:50.557 INFO kablam!    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 06 18:53:50.557 INFO kablam!    |
Nov 06 18:53:50.557 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 06 18:53:50.557 INFO kablam!    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 06 18:53:50.557 INFO kablam! 
Nov 06 18:53:50.557 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 06 18:53:50.557 INFO kablam!   --> tests/suite.rs:33:13
Nov 06 18:53:50.557 INFO kablam!    |
Nov 06 18:53:50.557 INFO kablam! 33 |             writeln!(stdout, "skipping file {:?}", path);
Nov 06 18:53:50.557 INFO kablam!    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 06 18:53:50.557 INFO kablam!    |
Nov 06 18:53:50.557 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 06 18:53:50.557 INFO kablam!    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 06 18:53:50.557 INFO kablam! 
Nov 06 18:53:50.608 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 43.09s
Nov 06 18:53:50.630 INFO kablam! su: No module specific data is present
Nov 06 18:53:51.597 INFO running `"docker" "rm" "-f" "a444532415cf1f8dd85794e9cb049251b1dc1a1f2ff15660357c5cc64bc123a9"`
Nov 06 18:53:52.044 INFO blam! a444532415cf1f8dd85794e9cb049251b1dc1a1f2ff15660357c5cc64bc123a9