Nov 30 17:51:01.521 INFO checking proc-macro-hack-0.5.1 against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 17:51:01.521 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-6/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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 17:51:02.048 INFO [stdout] 2f89132cadcf38dd376870cced01b3dff3bd2189c5ee9988bea2ac6a19936e53
Nov 30 17:51:02.050 INFO running `"docker" "start" "-a" "2f89132cadcf38dd376870cced01b3dff3bd2189c5ee9988bea2ac6a19936e53"`
Nov 30 17:51:04.149 INFO [stderr] usermod: no changes
Nov 30 17:51:04.232 INFO [stderr]     Checking syn v0.15.22
Nov 30 17:51:04.232 INFO [stderr]    Compiling proc-macro-hack v0.5.3
Nov 30 17:51:09.772 INFO [stderr]    Compiling demo-hack-impl v0.0.5
Nov 30 17:51:11.464 INFO [stderr]     Checking proc-macro-hack v0.5.1 (/source)
Nov 30 17:51:15.405 INFO [stderr]     Checking demo-hack v0.0.5
Nov 30 17:51:16.596 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 17:51:16.596 INFO [stderr]    --> src/lib.rs:425:5
Nov 30 17:51:16.596 INFO [stderr]     |
Nov 30 17:51:16.596 INFO [stderr] 425 |     write!(dummy, "_{}{}", export.from.to_string().len(), export.from);
Nov 30 17:51:16.596 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 17:51:16.596 INFO [stderr]     |
Nov 30 17:51:16.596 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 30 17:51:16.596 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 17:51:16.596 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 30 17:51:16.596 INFO [stderr] 
Nov 30 17:51:16.596 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 17:51:16.596 INFO [stderr]    --> src/lib.rs:427:9
Nov 30 17:51:16.596 INFO [stderr]     |
Nov 30 17:51:16.596 INFO [stderr] 427 |         write!(dummy, "_{}{}", m.name.to_string().len(), m.name);
Nov 30 17:51:16.596 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 17:51:16.596 INFO [stderr]     |
Nov 30 17:51:16.596 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 17:51:16.597 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 30 17:51:16.597 INFO [stderr] 
Nov 30 17:51:19.490 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 17:51:19.491 INFO [stderr]    --> src/lib.rs:425:5
Nov 30 17:51:19.491 INFO [stderr]     |
Nov 30 17:51:19.491 INFO [stderr] 425 |     write!(dummy, "_{}{}", export.from.to_string().len(), export.from);
Nov 30 17:51:19.491 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 17:51:19.491 INFO [stderr]     |
Nov 30 17:51:19.491 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 30 17:51:19.491 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 17:51:19.491 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 30 17:51:19.491 INFO [stderr] 
Nov 30 17:51:19.491 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 17:51:19.491 INFO [stderr]    --> src/lib.rs:427:9
Nov 30 17:51:19.491 INFO [stderr]     |
Nov 30 17:51:19.491 INFO [stderr] 427 |         write!(dummy, "_{}{}", m.name.to_string().len(), m.name);
Nov 30 17:51:19.491 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 17:51:19.491 INFO [stderr]     |
Nov 30 17:51:19.491 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 17:51:19.491 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 30 17:51:19.491 INFO [stderr] 
Nov 30 17:51:19.523 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.33s
Nov 30 17:51:19.523 INFO [stderr] su: No module specific data is present
Nov 30 17:51:20.074 INFO running `"docker" "inspect" "2f89132cadcf38dd376870cced01b3dff3bd2189c5ee9988bea2ac6a19936e53"`
Nov 30 17:51:20.207 INFO running `"docker" "rm" "-f" "2f89132cadcf38dd376870cced01b3dff3bd2189c5ee9988bea2ac6a19936e53"`
Nov 30 17:51:20.356 INFO [stdout] 2f89132cadcf38dd376870cced01b3dff3bd2189c5ee9988bea2ac6a19936e53