Dec 05 12:09:31.727 INFO checking hexyl-0.2.0 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 12:09:31.728 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-2/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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"`
Dec 05 12:09:31.903 INFO [stdout] 8e1ce5e5ed131556e5034397e2eb4b7812f72bd848611f0b8926685976138e2d
Dec 05 12:09:31.908 INFO running `"docker" "start" "-a" "8e1ce5e5ed131556e5034397e2eb4b7812f72bd848611f0b8926685976138e2d"`
Dec 05 12:09:32.347 INFO [stderr] usermod: no changes
Dec 05 12:09:32.438 INFO [stderr]     Checking hexyl v0.2.0 (/source)
Dec 05 12:09:34.371 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 12:09:34.371 INFO [stderr]   --> src/main.rs:92:9
Dec 05 12:09:34.371 INFO [stderr]    |
Dec 05 12:09:34.371 INFO [stderr] 92 | /         writeln!(
Dec 05 12:09:34.371 INFO [stderr] 93 | |             self.stdout,
Dec 05 12:09:34.371 INFO [stderr] 94 | |             "┌{}┬{}┬{}┬{}┐",
Dec 05 12:09:34.371 INFO [stderr] 95 | |             "─".repeat(3 * 8 + 1),
Dec 05 12:09:34.371 INFO [stderr] ...  |
Dec 05 12:09:34.371 INFO [stderr] 98 | |             "─".repeat(8)
Dec 05 12:09:34.371 INFO [stderr] 99 | |         );
Dec 05 12:09:34.371 INFO [stderr]    | |__________^
Dec 05 12:09:34.371 INFO [stderr]    |
Dec 05 12:09:34.371 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 12:09:34.371 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 12:09:34.371 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)
Dec 05 12:09:34.371 INFO [stderr] 
Dec 05 12:09:34.371 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 12:09:34.371 INFO [stderr]    --> src/main.rs:103:9
Dec 05 12:09:34.371 INFO [stderr]     |
Dec 05 12:09:34.371 INFO [stderr] 103 | /         writeln!(
Dec 05 12:09:34.371 INFO [stderr] 104 | |             self.stdout,
Dec 05 12:09:34.371 INFO [stderr] 105 | |             "└{}┴{}┴{}┴{}┘",
Dec 05 12:09:34.371 INFO [stderr] 106 | |             "─".repeat(3 * 8 + 1),
Dec 05 12:09:34.371 INFO [stderr] ...   |
Dec 05 12:09:34.371 INFO [stderr] 109 | |             "─".repeat(8)
Dec 05 12:09:34.371 INFO [stderr] 110 | |         );
Dec 05 12:09:34.371 INFO [stderr]     | |__________^
Dec 05 12:09:34.371 INFO [stderr]     |
Dec 05 12:09:34.379 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 12:09:34.379 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)
Dec 05 12:09:34.379 INFO [stderr] 
Dec 05 12:09:34.379 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 12:09:34.379 INFO [stderr]    --> src/main.rs:115:13
Dec 05 12:09:34.379 INFO [stderr]     |
Dec 05 12:09:34.379 INFO [stderr] 115 |             write!(self.stdout, "│ ");
Dec 05 12:09:34.379 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 12:09:34.379 INFO [stderr]     |
Dec 05 12:09:34.379 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 12:09:34.379 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)
Dec 05 12:09:34.379 INFO [stderr] 
Dec 05 12:09:34.379 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 12:09:34.379 INFO [stderr]    --> src/main.rs:159:17
Dec 05 12:09:34.379 INFO [stderr]     |
Dec 05 12:09:34.379 INFO [stderr] 159 |                 write!(self.stdout, "┊");
Dec 05 12:09:34.379 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 12:09:34.379 INFO [stderr]     |
Dec 05 12:09:34.379 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 12:09:34.379 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)
Dec 05 12:09:34.379 INFO [stderr] 
Dec 05 12:09:34.606 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 12:09:34.606 INFO [stderr]   --> src/main.rs:92:9
Dec 05 12:09:34.606 INFO [stderr]    |
Dec 05 12:09:34.606 INFO [stderr] 92 | /         writeln!(
Dec 05 12:09:34.606 INFO [stderr] 93 | |             self.stdout,
Dec 05 12:09:34.606 INFO [stderr] 94 | |             "┌{}┬{}┬{}┬{}┐",
Dec 05 12:09:34.606 INFO [stderr] 95 | |             "─".repeat(3 * 8 + 1),
Dec 05 12:09:34.606 INFO [stderr] ...  |
Dec 05 12:09:34.606 INFO [stderr] 98 | |             "─".repeat(8)
Dec 05 12:09:34.606 INFO [stderr] 99 | |         );
Dec 05 12:09:34.606 INFO [stderr]    | |__________^
Dec 05 12:09:34.606 INFO [stderr]    |
Dec 05 12:09:34.606 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 12:09:34.606 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 12:09:34.606 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)
Dec 05 12:09:34.606 INFO [stderr] 
Dec 05 12:09:34.606 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 12:09:34.606 INFO [stderr]    --> src/main.rs:103:9
Dec 05 12:09:34.606 INFO [stderr]     |
Dec 05 12:09:34.606 INFO [stderr] 103 | /         writeln!(
Dec 05 12:09:34.606 INFO [stderr] 104 | |             self.stdout,
Dec 05 12:09:34.606 INFO [stderr] 105 | |             "└{}┴{}┴{}┴{}┘",
Dec 05 12:09:34.606 INFO [stderr] 106 | |             "─".repeat(3 * 8 + 1),
Dec 05 12:09:34.606 INFO [stderr] ...   |
Dec 05 12:09:34.606 INFO [stderr] 109 | |             "─".repeat(8)
Dec 05 12:09:34.606 INFO [stderr] 110 | |         );
Dec 05 12:09:34.606 INFO [stderr]     | |__________^
Dec 05 12:09:34.606 INFO [stderr]     |
Dec 05 12:09:34.606 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 12:09:34.606 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)
Dec 05 12:09:34.606 INFO [stderr] 
Dec 05 12:09:34.606 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 12:09:34.606 INFO [stderr]    --> src/main.rs:115:13
Dec 05 12:09:34.606 INFO [stderr]     |
Dec 05 12:09:34.607 INFO [stderr] 115 |             write!(self.stdout, "│ ");
Dec 05 12:09:34.607 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 12:09:34.607 INFO [stderr]     |
Dec 05 12:09:34.607 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 12:09:34.607 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)
Dec 05 12:09:34.607 INFO [stderr] 
Dec 05 12:09:34.607 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 12:09:34.607 INFO [stderr]    --> src/main.rs:159:17
Dec 05 12:09:34.607 INFO [stderr]     |
Dec 05 12:09:34.607 INFO [stderr] 159 |                 write!(self.stdout, "┊");
Dec 05 12:09:34.607 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 12:09:34.607 INFO [stderr]     |
Dec 05 12:09:34.607 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 12:09:34.607 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)
Dec 05 12:09:34.607 INFO [stderr] 
Dec 05 12:09:34.646 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.26s
Dec 05 12:09:34.652 INFO [stderr] su: No module specific data is present
Dec 05 12:09:35.032 INFO running `"docker" "inspect" "8e1ce5e5ed131556e5034397e2eb4b7812f72bd848611f0b8926685976138e2d"`
Dec 05 12:09:35.244 INFO running `"docker" "rm" "-f" "8e1ce5e5ed131556e5034397e2eb4b7812f72bd848611f0b8926685976138e2d"`
Dec 05 12:09:35.345 INFO [stdout] 8e1ce5e5ed131556e5034397e2eb4b7812f72bd848611f0b8926685976138e2d