Dec 19 07:37:20.371 INFO checking takakawa/tcpdump-helper against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 07:37:20.371 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/takakawa/tcpdump-helper:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 07:37:20.762 INFO [stdout] 3d6009144dac2e2e5b6a01857db16809a6e205cc291dda4478d496b640fd7c4b
Dec 19 07:37:20.770 INFO running `"docker" "start" "-a" "3d6009144dac2e2e5b6a01857db16809a6e205cc291dda4478d496b640fd7c4b"`
Dec 19 07:37:22.273 INFO [stderr]     Checking tcpdump-helper v0.1.0 (/opt/crater/workdir)
Dec 19 07:37:22.896 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 07:37:22.896 INFO [stderr]   --> src/main.rs:48:2
Dec 19 07:37:22.896 INFO [stderr]    |
Dec 19 07:37:22.896 INFO [stderr] 48 |     write!(tcpdump_command,"-i {} ",dev);
Dec 19 07:37:22.896 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 07:37:22.896 INFO [stderr]    |
Dec 19 07:37:22.896 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 07:37:22.896 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 07:37:22.896 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 19 07:37:22.896 INFO [stderr] 
Dec 19 07:37:22.896 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 07:37:22.896 INFO [stderr]   --> src/main.rs:51:3
Dec 19 07:37:22.896 INFO [stderr]    |
Dec 19 07:37:22.896 INFO [stderr] 51 |         write!(tcpdump_command,"-Ann ");
Dec 19 07:37:22.896 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 07:37:22.896 INFO [stderr]    |
Dec 19 07:37:22.896 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 07:37:22.896 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 19 07:37:22.896 INFO [stderr] 
Dec 19 07:37:22.896 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 07:37:22.896 INFO [stderr]   --> src/main.rs:55:2
Dec 19 07:37:22.896 INFO [stderr]    |
Dec 19 07:37:22.896 INFO [stderr] 55 |     write!(tcpdump_command,"\' port {} and ",port);
Dec 19 07:37:22.896 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 07:37:22.896 INFO [stderr]    |
Dec 19 07:37:22.896 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 07:37:22.896 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 19 07:37:22.896 INFO [stderr] 
Dec 19 07:37:22.904 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 07:37:22.904 INFO [stderr]   --> src/main.rs:76:3
Dec 19 07:37:22.904 INFO [stderr]    |
Dec 19 07:37:22.904 INFO [stderr] 76 |         write!(&mut tcpdump_command, " and tcp[((tcp[12:1] & 0xf0) >> 2)+{}:4]=0x",url_offset);
Dec 19 07:37:22.904 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 07:37:22.904 INFO [stderr]    |
Dec 19 07:37:22.904 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 07:37:22.904 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 19 07:37:22.904 INFO [stderr] 
Dec 19 07:37:22.904 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 07:37:22.904 INFO [stderr]   --> src/main.rs:88:2
Dec 19 07:37:22.904 INFO [stderr]    |
Dec 19 07:37:22.904 INFO [stderr] 88 |     write!(tcpdump_command,"\'");
Dec 19 07:37:22.904 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 07:37:22.904 INFO [stderr]    |
Dec 19 07:37:22.904 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 07:37:22.904 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 19 07:37:22.904 INFO [stderr] 
Dec 19 07:37:22.912 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 07:37:22.912 INFO [stderr]   --> src/main.rs:48:2
Dec 19 07:37:22.912 INFO [stderr]    |
Dec 19 07:37:22.912 INFO [stderr] 48 |     write!(tcpdump_command,"-i {} ",dev);
Dec 19 07:37:22.912 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 07:37:22.912 INFO [stderr]    |
Dec 19 07:37:22.912 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 07:37:22.912 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 07:37:22.912 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 19 07:37:22.912 INFO [stderr] 
Dec 19 07:37:22.912 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 07:37:22.913 INFO [stderr]   --> src/main.rs:51:3
Dec 19 07:37:22.913 INFO [stderr]    |
Dec 19 07:37:22.913 INFO [stderr] 51 |         write!(tcpdump_command,"-Ann ");
Dec 19 07:37:22.913 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 07:37:22.913 INFO [stderr]    |
Dec 19 07:37:22.913 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 07:37:22.913 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 19 07:37:22.913 INFO [stderr] 
Dec 19 07:37:22.913 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 07:37:22.913 INFO [stderr]   --> src/main.rs:55:2
Dec 19 07:37:22.913 INFO [stderr]    |
Dec 19 07:37:22.913 INFO [stderr] 55 |     write!(tcpdump_command,"\' port {} and ",port);
Dec 19 07:37:22.913 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 07:37:22.913 INFO [stderr]    |
Dec 19 07:37:22.913 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 07:37:22.913 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 19 07:37:22.913 INFO [stderr] 
Dec 19 07:37:22.913 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 07:37:22.913 INFO [stderr]   --> src/main.rs:76:3
Dec 19 07:37:22.913 INFO [stderr]    |
Dec 19 07:37:22.913 INFO [stderr] 76 |         write!(&mut tcpdump_command, " and tcp[((tcp[12:1] & 0xf0) >> 2)+{}:4]=0x",url_offset);
Dec 19 07:37:22.913 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 07:37:22.913 INFO [stderr]    |
Dec 19 07:37:22.913 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 07:37:22.913 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 19 07:37:22.913 INFO [stderr] 
Dec 19 07:37:22.913 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 07:37:22.913 INFO [stderr]   --> src/main.rs:88:2
Dec 19 07:37:22.913 INFO [stderr]    |
Dec 19 07:37:22.913 INFO [stderr] 88 |     write!(tcpdump_command,"\'");
Dec 19 07:37:22.913 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 07:37:22.913 INFO [stderr]    |
Dec 19 07:37:22.913 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 07:37:22.913 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 19 07:37:22.913 INFO [stderr] 
Dec 19 07:37:22.937 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
Dec 19 07:37:23.664 INFO running `"docker" "inspect" "3d6009144dac2e2e5b6a01857db16809a6e205cc291dda4478d496b640fd7c4b"`
Dec 19 07:37:23.902 INFO running `"docker" "rm" "-f" "3d6009144dac2e2e5b6a01857db16809a6e205cc291dda4478d496b640fd7c4b"`
Dec 19 07:37:24.218 INFO [stdout] 3d6009144dac2e2e5b6a01857db16809a6e205cc291dda4478d496b640fd7c4b