Nov 28 20:24:11.659 INFO checking proc-macro-hack-0.5.1 against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 28 20:24:11.660 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-4/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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 28 20:24:12.316 INFO [stdout] 150092f6d37496aaa6ffe9df9a7cf8f11468737a8ffb7d6349879a0681793da0
Nov 28 20:24:12.326 INFO running `"docker" "start" "-a" "150092f6d37496aaa6ffe9df9a7cf8f11468737a8ffb7d6349879a0681793da0"`
Nov 28 20:24:13.259 INFO [stderr] usermod: no changes
Nov 28 20:24:13.320 INFO [stderr]     Checking syn v0.15.22
Nov 28 20:24:13.321 INFO [stderr]    Compiling proc-macro-hack v0.5.2
Nov 28 20:24:20.403 INFO [stderr]     Checking proc-macro-hack v0.5.1 (/source)
Nov 28 20:24:20.565 INFO [stderr]    Compiling demo-hack-impl v0.0.5
Nov 28 20:24:23.656 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 20:24:23.656 INFO [stderr]    --> src/lib.rs:425:5
Nov 28 20:24:23.656 INFO [stderr]     |
Nov 28 20:24:23.656 INFO [stderr] 425 |     write!(dummy, "_{}{}", export.from.to_string().len(), export.from);
Nov 28 20:24:23.656 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 20:24:23.656 INFO [stderr]     |
Nov 28 20:24:23.656 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 28 20:24:23.656 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 20:24:23.656 INFO [stderr]     = 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 28 20:24:23.656 INFO [stderr] 
Nov 28 20:24:23.656 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 20:24:23.656 INFO [stderr]    --> src/lib.rs:427:9
Nov 28 20:24:23.656 INFO [stderr]     |
Nov 28 20:24:23.656 INFO [stderr] 427 |         write!(dummy, "_{}{}", m.name.to_string().len(), m.name);
Nov 28 20:24:23.656 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 20:24:23.656 INFO [stderr]     |
Nov 28 20:24:23.656 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 20:24:23.656 INFO [stderr]     = 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 28 20:24:23.656 INFO [stderr] 
Nov 28 20:24:24.992 INFO [stderr]     Checking demo-hack v0.0.5
Nov 28 20:24:29.162 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 20:24:29.162 INFO [stderr]    --> src/lib.rs:425:5
Nov 28 20:24:29.162 INFO [stderr]     |
Nov 28 20:24:29.162 INFO [stderr] 425 |     write!(dummy, "_{}{}", export.from.to_string().len(), export.from);
Nov 28 20:24:29.162 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 20:24:29.162 INFO [stderr]     |
Nov 28 20:24:29.162 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 28 20:24:29.162 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 20:24:29.162 INFO [stderr]     = 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 28 20:24:29.162 INFO [stderr] 
Nov 28 20:24:29.162 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 20:24:29.162 INFO [stderr]    --> src/lib.rs:427:9
Nov 28 20:24:29.162 INFO [stderr]     |
Nov 28 20:24:29.162 INFO [stderr] 427 |         write!(dummy, "_{}{}", m.name.to_string().len(), m.name);
Nov 28 20:24:29.162 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 20:24:29.162 INFO [stderr]     |
Nov 28 20:24:29.162 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 20:24:29.162 INFO [stderr]     = 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 28 20:24:29.162 INFO [stderr] 
Nov 28 20:24:29.180 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.88s
Nov 28 20:24:29.181 INFO [stderr] su: No module specific data is present
Nov 28 20:24:29.755 INFO running `"docker" "inspect" "150092f6d37496aaa6ffe9df9a7cf8f11468737a8ffb7d6349879a0681793da0"`
Nov 28 20:24:29.956 INFO running `"docker" "rm" "-f" "150092f6d37496aaa6ffe9df9a7cf8f11468737a8ffb7d6349879a0681793da0"`
Nov 28 20:24:30.132 INFO [stdout] 150092f6d37496aaa6ffe9df9a7cf8f11468737a8ffb7d6349879a0681793da0