Dec 05 16:36:11.888 INFO checking argle-0.1.2 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 16:36:11.888 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-0/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 16:36:12.340 INFO [stdout] 025e1807433d483f2ea02b0fe533f850584d51303e6e52d406ea747e4679fe6a
Dec 05 16:36:12.347 INFO running `"docker" "start" "-a" "025e1807433d483f2ea02b0fe533f850584d51303e6e52d406ea747e4679fe6a"`
Dec 05 16:36:13.780 INFO [stderr] usermod: no changes
Dec 05 16:36:13.870 INFO [stderr]     Checking argle v0.1.2 (/source)
Dec 05 16:36:14.911 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:36:14.911 INFO [stderr]   --> src/lib.rs:85:17
Dec 05 16:36:14.911 INFO [stderr]    |
Dec 05 16:36:14.911 INFO [stderr] 85 |                 write!(buf, "Default: {}", d);
Dec 05 16:36:14.911 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:36:14.911 INFO [stderr]    |
Dec 05 16:36:14.911 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 16:36:14.911 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:36:14.911 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 16:36:14.911 INFO [stderr] 
Dec 05 16:36:14.911 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:36:14.911 INFO [stderr]   --> src/lib.rs:88:17
Dec 05 16:36:14.911 INFO [stderr]    |
Dec 05 16:36:14.911 INFO [stderr] 88 |                 write!(buf, "Dependency: {}", c);
Dec 05 16:36:14.911 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:36:14.911 INFO [stderr]    |
Dec 05 16:36:14.911 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:36:14.911 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 16:36:14.911 INFO [stderr] 
Dec 05 16:36:14.911 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:36:14.911 INFO [stderr]   --> src/lib.rs:91:17
Dec 05 16:36:14.911 INFO [stderr]    |
Dec 05 16:36:14.911 INFO [stderr] 91 |                 write!(buf, "Required");
Dec 05 16:36:14.911 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:36:14.911 INFO [stderr]    |
Dec 05 16:36:14.911 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:36:14.911 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 16:36:14.911 INFO [stderr] 
Dec 05 16:36:14.911 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:36:14.911 INFO [stderr]    --> src/lib.rs:108:17
Dec 05 16:36:14.911 INFO [stderr]     |
Dec 05 16:36:14.911 INFO [stderr] 108 |                 write!(buf, "{}", sep);
Dec 05 16:36:14.911 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:36:14.911 INFO [stderr]     |
Dec 05 16:36:14.911 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:36:14.911 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 16:36:14.911 INFO [stderr] 
Dec 05 16:36:14.911 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:36:14.911 INFO [stderr]    --> src/lib.rs:133:17
Dec 05 16:36:14.911 INFO [stderr]     |
Dec 05 16:36:14.911 INFO [stderr] 133 |                 write!(buf, " (");
Dec 05 16:36:14.911 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^
Dec 05 16:36:14.911 INFO [stderr]     |
Dec 05 16:36:14.911 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:36:14.911 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 16:36:14.911 INFO [stderr] 
Dec 05 16:36:14.911 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:36:14.911 INFO [stderr]    --> src/lib.rs:136:17
Dec 05 16:36:14.911 INFO [stderr]     |
Dec 05 16:36:14.911 INFO [stderr] 136 |                 write!(buf, ")");
Dec 05 16:36:14.911 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^
Dec 05 16:36:14.911 INFO [stderr]     |
Dec 05 16:36:14.911 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:36:14.911 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 16:36:14.911 INFO [stderr] 
Dec 05 16:36:15.100 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:36:15.100 INFO [stderr]   --> src/lib.rs:85:17
Dec 05 16:36:15.100 INFO [stderr]    |
Dec 05 16:36:15.100 INFO [stderr] 85 |                 write!(buf, "Default: {}", d);
Dec 05 16:36:15.100 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:36:15.100 INFO [stderr]    |
Dec 05 16:36:15.100 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 16:36:15.100 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:36:15.100 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 16:36:15.100 INFO [stderr] 
Dec 05 16:36:15.100 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:36:15.100 INFO [stderr]   --> src/lib.rs:88:17
Dec 05 16:36:15.100 INFO [stderr]    |
Dec 05 16:36:15.100 INFO [stderr] 88 |                 write!(buf, "Dependency: {}", c);
Dec 05 16:36:15.100 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:36:15.100 INFO [stderr]    |
Dec 05 16:36:15.100 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:36:15.100 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 16:36:15.100 INFO [stderr] 
Dec 05 16:36:15.100 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:36:15.100 INFO [stderr]   --> src/lib.rs:91:17
Dec 05 16:36:15.100 INFO [stderr]    |
Dec 05 16:36:15.100 INFO [stderr] 91 |                 write!(buf, "Required");
Dec 05 16:36:15.100 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:36:15.100 INFO [stderr]    |
Dec 05 16:36:15.100 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:36:15.100 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 16:36:15.100 INFO [stderr] 
Dec 05 16:36:15.100 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:36:15.100 INFO [stderr]    --> src/lib.rs:108:17
Dec 05 16:36:15.100 INFO [stderr]     |
Dec 05 16:36:15.100 INFO [stderr] 108 |                 write!(buf, "{}", sep);
Dec 05 16:36:15.100 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:36:15.100 INFO [stderr]     |
Dec 05 16:36:15.100 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:36:15.100 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 16:36:15.100 INFO [stderr] 
Dec 05 16:36:15.101 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:36:15.101 INFO [stderr]    --> src/lib.rs:133:17
Dec 05 16:36:15.101 INFO [stderr]     |
Dec 05 16:36:15.101 INFO [stderr] 133 |                 write!(buf, " (");
Dec 05 16:36:15.101 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^
Dec 05 16:36:15.101 INFO [stderr]     |
Dec 05 16:36:15.101 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:36:15.101 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 16:36:15.101 INFO [stderr] 
Dec 05 16:36:15.101 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:36:15.101 INFO [stderr]    --> src/lib.rs:136:17
Dec 05 16:36:15.101 INFO [stderr]     |
Dec 05 16:36:15.101 INFO [stderr] 136 |                 write!(buf, ")");
Dec 05 16:36:15.101 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^
Dec 05 16:36:15.101 INFO [stderr]     |
Dec 05 16:36:15.101 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:36:15.101 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 16:36:15.101 INFO [stderr] 
Dec 05 16:36:15.102 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 16:36:15.102 INFO [stderr]     --> src/lib.rs:1336:9
Dec 05 16:36:15.102 INFO [stderr]      |
Dec 05 16:36:15.102 INFO [stderr] 1336 |         write!(&mut s, "{}", d);
Dec 05 16:36:15.102 INFO [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 16:36:15.102 INFO [stderr]      |
Dec 05 16:36:15.102 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 16:36:15.102 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 16:36:15.102 INFO [stderr] 
Dec 05 16:36:15.118 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.30s
Dec 05 16:36:15.120 INFO [stderr] su: No module specific data is present
Dec 05 16:36:15.425 INFO running `"docker" "inspect" "025e1807433d483f2ea02b0fe533f850584d51303e6e52d406ea747e4679fe6a"`
Dec 05 16:36:15.513 INFO running `"docker" "rm" "-f" "025e1807433d483f2ea02b0fe533f850584d51303e6e52d406ea747e4679fe6a"`
Dec 05 16:36:15.598 INFO [stdout] 025e1807433d483f2ea02b0fe533f850584d51303e6e52d406ea747e4679fe6a