Nov 28 16:11:42.605 INFO checking ubend-0.2.1 against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 16:11:42.606 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-3/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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 16:11:42.970 INFO [stdout] 4732450f5d98256298e471decc965dfc2f319e11645721635612e30089bd574e
Nov 28 16:11:42.970 INFO running `"docker" "start" "-a" "4732450f5d98256298e471decc965dfc2f319e11645721635612e30089bd574e"`
Nov 28 16:11:43.882 INFO [stderr] usermod: no changes
Nov 28 16:11:43.924 INFO [stderr]    Compiling libc v0.2.44
Nov 28 16:11:46.253 INFO [stderr]     Checking ubend v0.2.1 (/source)
Nov 28 16:11:48.507 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 16:11:48.507 INFO [stderr]    --> tests/main.rs:180:3
Nov 28 16:11:48.507 INFO [stderr]     |
Nov 28 16:11:48.507 INFO [stderr] 180 |         write!(stream, "hello world");
Nov 28 16:11:48.507 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 16:11:48.507 INFO [stderr]     |
Nov 28 16:11:48.507 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 28 16:11:48.507 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 16:11:48.507 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 16:11:48.507 INFO [stderr] 
Nov 28 16:11:48.507 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 16:11:48.507 INFO [stderr]    --> tests/main.rs:211:3
Nov 28 16:11:48.507 INFO [stderr]     |
Nov 28 16:11:48.507 INFO [stderr] 211 |         write!(stream, "spam\neggs\nspam spam\n");
Nov 28 16:11:48.507 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 16:11:48.507 INFO [stderr]     |
Nov 28 16:11:48.507 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 16:11:48.507 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 16:11:48.507 INFO [stderr] 
Nov 28 16:11:48.525 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.62s
Nov 28 16:11:48.527 INFO [stderr] su: No module specific data is present
Nov 28 16:11:49.175 INFO running `"docker" "inspect" "4732450f5d98256298e471decc965dfc2f319e11645721635612e30089bd574e"`
Nov 28 16:11:49.379 INFO running `"docker" "rm" "-f" "4732450f5d98256298e471decc965dfc2f319e11645721635612e30089bd574e"`
Nov 28 16:11:49.680 INFO [stdout] 4732450f5d98256298e471decc965dfc2f319e11645721635612e30089bd574e