Dec 12 04:54:23.773 INFO checking welle-0.1.0 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 04:54:23.773 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 12 04:54:24.116 INFO [stdout] 3bb4b17523bee71f9f31c4860fff14f5034e818f7325dd173938c634ccf230c6
Dec 12 04:54:24.122 INFO running `"docker" "start" "-a" "3bb4b17523bee71f9f31c4860fff14f5034e818f7325dd173938c634ccf230c6"`
Dec 12 04:54:25.459 INFO [stderr] usermod: no changes
Dec 12 04:54:25.827 INFO [stderr]     Checking uuid v0.7.1
Dec 12 04:54:25.840 INFO [stderr]     Checking http v0.1.14
Dec 12 04:54:25.840 INFO [stderr]     Checking native-tls v0.2.2
Dec 12 04:54:25.840 INFO [stderr]    Compiling structopt-derive v0.2.14
Dec 12 04:54:32.550 INFO [stderr]     Checking structopt v0.2.14
Dec 12 04:54:33.564 INFO [stderr]     Checking h2 v0.1.14
Dec 12 04:54:37.734 INFO [stderr]     Checking hyper v0.12.18
Dec 12 04:54:44.160 INFO [stderr]     Checking hyper-tls v0.3.1
Dec 12 04:54:48.122 INFO [stderr]     Checking reqwest v0.9.5
Dec 12 04:54:53.740 INFO [stderr]     Checking welle v0.1.0 (/source)
Dec 12 04:55:01.792 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 04:55:01.792 INFO [stderr]    --> src/main.rs:204:9
Dec 12 04:55:01.792 INFO [stderr]     |
Dec 12 04:55:01.792 INFO [stderr] 204 |         writeln!(f, "");
Dec 12 04:55:01.792 INFO [stderr]     |         ^^^^^^^^^^^^^^^^
Dec 12 04:55:01.792 INFO [stderr]     |
Dec 12 04:55:01.792 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 12 04:55:01.792 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 04:55:01.792 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 12 04:55:01.792 INFO [stderr] 
Dec 12 04:55:01.792 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 04:55:01.792 INFO [stderr]    --> src/main.rs:213:9
Dec 12 04:55:01.792 INFO [stderr]     |
Dec 12 04:55:01.792 INFO [stderr] 213 |         writeln!(f, "");
Dec 12 04:55:01.792 INFO [stderr]     |         ^^^^^^^^^^^^^^^^
Dec 12 04:55:01.792 INFO [stderr]     |
Dec 12 04:55:01.793 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 04:55:01.793 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 12 04:55:01.793 INFO [stderr] 
Dec 12 04:55:01.793 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 04:55:01.793 INFO [stderr]    --> src/main.rs:214:9
Dec 12 04:55:01.793 INFO [stderr]     |
Dec 12 04:55:01.793 INFO [stderr] 214 | /         writeln!(
Dec 12 04:55:01.793 INFO [stderr] 215 | |             f,
Dec 12 04:55:01.793 INFO [stderr] 216 | |             "Percentage of the requests served within a certain time:"
Dec 12 04:55:01.793 INFO [stderr] 217 | |         );
Dec 12 04:55:01.793 INFO [stderr]     | |__________^
Dec 12 04:55:01.793 INFO [stderr]     |
Dec 12 04:55:01.793 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 04:55:01.793 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 12 04:55:01.793 INFO [stderr] 
Dec 12 04:55:02.580 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 04:55:02.580 INFO [stderr]    --> src/main.rs:204:9
Dec 12 04:55:02.580 INFO [stderr]     |
Dec 12 04:55:02.580 INFO [stderr] 204 |         writeln!(f, "");
Dec 12 04:55:02.580 INFO [stderr]     |         ^^^^^^^^^^^^^^^^
Dec 12 04:55:02.580 INFO [stderr]     |
Dec 12 04:55:02.580 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 12 04:55:02.580 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 04:55:02.580 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 12 04:55:02.580 INFO [stderr] 
Dec 12 04:55:02.580 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 04:55:02.580 INFO [stderr]    --> src/main.rs:213:9
Dec 12 04:55:02.580 INFO [stderr]     |
Dec 12 04:55:02.580 INFO [stderr] 213 |         writeln!(f, "");
Dec 12 04:55:02.580 INFO [stderr]     |         ^^^^^^^^^^^^^^^^
Dec 12 04:55:02.580 INFO [stderr]     |
Dec 12 04:55:02.580 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 04:55:02.580 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 12 04:55:02.580 INFO [stderr] 
Dec 12 04:55:02.580 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 04:55:02.580 INFO [stderr]    --> src/main.rs:214:9
Dec 12 04:55:02.580 INFO [stderr]     |
Dec 12 04:55:02.580 INFO [stderr] 214 | /         writeln!(
Dec 12 04:55:02.580 INFO [stderr] 215 | |             f,
Dec 12 04:55:02.580 INFO [stderr] 216 | |             "Percentage of the requests served within a certain time:"
Dec 12 04:55:02.580 INFO [stderr] 217 | |         );
Dec 12 04:55:02.580 INFO [stderr]     | |__________^
Dec 12 04:55:02.580 INFO [stderr]     |
Dec 12 04:55:02.580 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 04:55:02.580 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 12 04:55:02.580 INFO [stderr] 
Dec 12 04:55:02.617 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.12s
Dec 12 04:55:02.632 INFO [stderr] su: No module specific data is present
Dec 12 04:55:03.712 INFO running `"docker" "inspect" "3bb4b17523bee71f9f31c4860fff14f5034e818f7325dd173938c634ccf230c6"`
Dec 12 04:55:03.952 INFO running `"docker" "rm" "-f" "3bb4b17523bee71f9f31c4860fff14f5034e818f7325dd173938c634ccf230c6"`
Dec 12 04:55:04.245 INFO [stdout] 3bb4b17523bee71f9f31c4860fff14f5034e818f7325dd173938c634ccf230c6