Nov 29 17:00:44.848 INFO checking takakawa/tcpdump-helper against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 29 17:00:44.848 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-6/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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"`
Nov 29 17:00:45.358 INFO [stdout] e387265fcdca17ab4498bc3cb5699041c5a73b9fbc0f8f4fb7740a18b022335e
Nov 29 17:00:45.360 INFO running `"docker" "start" "-a" "e387265fcdca17ab4498bc3cb5699041c5a73b9fbc0f8f4fb7740a18b022335e"`
Nov 29 17:00:46.799 INFO [stderr] usermod: no changes
Nov 29 17:00:46.928 INFO [stderr]     Checking tcpdump-helper v0.1.0 (/source)
Nov 29 17:00:47.514 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 17:00:47.515 INFO [stderr]   --> src/main.rs:48:2
Nov 29 17:00:47.515 INFO [stderr]    |
Nov 29 17:00:47.515 INFO [stderr] 48 |     write!(tcpdump_command,"-i {} ",dev);
Nov 29 17:00:47.515 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:00:47.515 INFO [stderr]    |
Nov 29 17:00:47.515 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 29 17:00:47.515 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 17:00:47.515 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)
Nov 29 17:00:47.515 INFO [stderr] 
Nov 29 17:00:47.515 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 17:00:47.515 INFO [stderr]   --> src/main.rs:51:3
Nov 29 17:00:47.515 INFO [stderr]    |
Nov 29 17:00:47.515 INFO [stderr] 51 |         write!(tcpdump_command,"-Ann ");
Nov 29 17:00:47.515 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:00:47.515 INFO [stderr]    |
Nov 29 17:00:47.515 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 17:00:47.515 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)
Nov 29 17:00:47.515 INFO [stderr] 
Nov 29 17:00:47.515 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 17:00:47.515 INFO [stderr]   --> src/main.rs:55:2
Nov 29 17:00:47.515 INFO [stderr]    |
Nov 29 17:00:47.515 INFO [stderr] 55 |     write!(tcpdump_command,"\' port {} and ",port);
Nov 29 17:00:47.515 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:00:47.516 INFO [stderr]    |
Nov 29 17:00:47.516 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 17:00:47.516 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)
Nov 29 17:00:47.516 INFO [stderr] 
Nov 29 17:00:47.516 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 17:00:47.517 INFO [stderr]   --> src/main.rs:76:3
Nov 29 17:00:47.517 INFO [stderr]    |
Nov 29 17:00:47.517 INFO [stderr] 76 |         write!(&mut tcpdump_command, " and tcp[((tcp[12:1] & 0xf0) >> 2)+{}:4]=0x",url_offset);
Nov 29 17:00:47.517 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:00:47.517 INFO [stderr]    |
Nov 29 17:00:47.517 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 17:00:47.517 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)
Nov 29 17:00:47.517 INFO [stderr] 
Nov 29 17:00:47.518 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 17:00:47.518 INFO [stderr]   --> src/main.rs:88:2
Nov 29 17:00:47.518 INFO [stderr]    |
Nov 29 17:00:47.518 INFO [stderr] 88 |     write!(tcpdump_command,"\'");
Nov 29 17:00:47.518 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:00:47.518 INFO [stderr]    |
Nov 29 17:00:47.518 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 17:00:47.518 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)
Nov 29 17:00:47.518 INFO [stderr] 
Nov 29 17:00:47.553 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 17:00:47.553 INFO [stderr]   --> src/main.rs:48:2
Nov 29 17:00:47.554 INFO [stderr]    |
Nov 29 17:00:47.554 INFO [stderr] 48 |     write!(tcpdump_command,"-i {} ",dev);
Nov 29 17:00:47.554 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:00:47.556 INFO [stderr]    |
Nov 29 17:00:47.556 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 29 17:00:47.556 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 17:00:47.556 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)
Nov 29 17:00:47.556 INFO [stderr] 
Nov 29 17:00:47.556 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 17:00:47.556 INFO [stderr]   --> src/main.rs:51:3
Nov 29 17:00:47.556 INFO [stderr]    |
Nov 29 17:00:47.556 INFO [stderr] 51 |         write!(tcpdump_command,"-Ann ");
Nov 29 17:00:47.556 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:00:47.556 INFO [stderr]    |
Nov 29 17:00:47.556 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 17:00:47.556 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)
Nov 29 17:00:47.556 INFO [stderr] 
Nov 29 17:00:47.556 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 17:00:47.556 INFO [stderr]   --> src/main.rs:55:2
Nov 29 17:00:47.556 INFO [stderr]    |
Nov 29 17:00:47.556 INFO [stderr] 55 |     write!(tcpdump_command,"\' port {} and ",port);
Nov 29 17:00:47.556 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:00:47.556 INFO [stderr]    |
Nov 29 17:00:47.556 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 17:00:47.556 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)
Nov 29 17:00:47.556 INFO [stderr] 
Nov 29 17:00:47.556 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 17:00:47.556 INFO [stderr]   --> src/main.rs:76:3
Nov 29 17:00:47.556 INFO [stderr]    |
Nov 29 17:00:47.556 INFO [stderr] 76 |         write!(&mut tcpdump_command, " and tcp[((tcp[12:1] & 0xf0) >> 2)+{}:4]=0x",url_offset);
Nov 29 17:00:47.556 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:00:47.556 INFO [stderr]    |
Nov 29 17:00:47.556 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 17:00:47.556 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)
Nov 29 17:00:47.556 INFO [stderr] 
Nov 29 17:00:47.556 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 17:00:47.556 INFO [stderr]   --> src/main.rs:88:2
Nov 29 17:00:47.556 INFO [stderr]    |
Nov 29 17:00:47.556 INFO [stderr] 88 |     write!(tcpdump_command,"\'");
Nov 29 17:00:47.556 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:00:47.556 INFO [stderr]    |
Nov 29 17:00:47.556 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 17:00:47.556 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)
Nov 29 17:00:47.556 INFO [stderr] 
Nov 29 17:00:47.573 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
Nov 29 17:00:47.581 INFO [stderr] su: No module specific data is present
Nov 29 17:00:48.415 INFO running `"docker" "inspect" "e387265fcdca17ab4498bc3cb5699041c5a73b9fbc0f8f4fb7740a18b022335e"`
Nov 29 17:00:48.692 INFO running `"docker" "rm" "-f" "e387265fcdca17ab4498bc3cb5699041c5a73b9fbc0f8f4fb7740a18b022335e"`
Nov 29 17:00:49.020 INFO [stdout] e387265fcdca17ab4498bc3cb5699041c5a73b9fbc0f8f4fb7740a18b022335e