Dec 05 11:41:39.064 INFO checking ipaddr-0.0.3 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 11:41:39.064 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-5/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/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 11:41:39.636 INFO [stdout] 68f033e5f28299d26bbc0e433708eb3baefd581b0e7089021db02d81a409007b
Dec 05 11:41:39.638 INFO running `"docker" "start" "-a" "68f033e5f28299d26bbc0e433708eb3baefd581b0e7089021db02d81a409007b"`
Dec 05 11:41:42.051 INFO [stderr] usermod: no changes
Dec 05 11:41:42.119 INFO [stderr]     Checking ipaddr v0.0.3 (/source)
Dec 05 11:41:44.514 INFO [stderr] warning: unused variable: `f`
Dec 05 11:41:44.515 INFO [stderr]   --> src/ipv6/network.rs:57:19
Dec 05 11:41:44.515 INFO [stderr]    |
Dec 05 11:41:44.515 INFO [stderr] 57 |     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
Dec 05 11:41:44.515 INFO [stderr]    |                   ^ help: consider using `_f` instead
Dec 05 11:41:44.515 INFO [stderr]    |
Dec 05 11:41:44.515 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 11:41:44.515 INFO [stderr] 
Dec 05 11:41:44.515 INFO [stderr] warning: unused variable: `f`
Dec 05 11:41:44.515 INFO [stderr]   --> src/ipv6/network.rs:63:19
Dec 05 11:41:44.515 INFO [stderr]    |
Dec 05 11:41:44.515 INFO [stderr] 63 |     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
Dec 05 11:41:44.515 INFO [stderr]    |                   ^ help: consider using `_f` instead
Dec 05 11:41:44.515 INFO [stderr] 
Dec 05 11:41:45.253 INFO [stderr] warning: unused variable: `f`
Dec 05 11:41:45.253 INFO [stderr]   --> src/ipv6/network.rs:57:19
Dec 05 11:41:45.253 INFO [stderr]    |
Dec 05 11:41:45.253 INFO [stderr] 57 |     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
Dec 05 11:41:45.253 INFO [stderr]    |                   ^ help: consider using `_f` instead
Dec 05 11:41:45.253 INFO [stderr]    |
Dec 05 11:41:45.253 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 11:41:45.253 INFO [stderr] 
Dec 05 11:41:45.253 INFO [stderr] warning: unused variable: `f`
Dec 05 11:41:45.253 INFO [stderr]   --> src/ipv6/network.rs:63:19
Dec 05 11:41:45.253 INFO [stderr]    |
Dec 05 11:41:45.253 INFO [stderr] 63 |     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
Dec 05 11:41:45.253 INFO [stderr]    |                   ^ help: consider using `_f` instead
Dec 05 11:41:45.253 INFO [stderr] 
Dec 05 11:41:45.506 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 11:41:45.506 INFO [stderr]    --> src/ipv6/address/format.rs:451:9
Dec 05 11:41:45.506 INFO [stderr]     |
Dec 05 11:41:45.506 INFO [stderr] 451 | /         ip.formatter(&mut s)
Dec 05 11:41:45.507 INFO [stderr] 452 | |             .upper_case(true)
Dec 05 11:41:45.507 INFO [stderr] 453 | |             .ellipsis(false)
Dec 05 11:41:45.507 INFO [stderr] 454 | |             .write();
Dec 05 11:41:45.507 INFO [stderr]     | |_____________________^
Dec 05 11:41:45.507 INFO [stderr]     |
Dec 05 11:41:45.511 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 05 11:41:45.511 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 11:41:45.511 INFO [stderr] 
Dec 05 11:41:45.570 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.49s
Dec 05 11:41:45.575 INFO [stderr] su: No module specific data is present
Dec 05 11:41:46.355 INFO running `"docker" "inspect" "68f033e5f28299d26bbc0e433708eb3baefd581b0e7089021db02d81a409007b"`
Dec 05 11:41:46.639 INFO running `"docker" "rm" "-f" "68f033e5f28299d26bbc0e433708eb3baefd581b0e7089021db02d81a409007b"`
Dec 05 11:41:46.867 INFO [stdout] 68f033e5f28299d26bbc0e433708eb3baefd581b0e7089021db02d81a409007b