[INFO] fetching crate mydhcp 0.1.0...
[INFO] checking mydhcp-0.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate mydhcp 0.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate mydhcp 0.1.0
[INFO] finished tweaking crates.io crate mydhcp 0.1.0
[INFO] tweaked toml for crates.io crate mydhcp 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mydhcp 0.1.0 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mydhcp 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1cab2050feb0544b0bbf17bbf9a91e56e24916e5d8c37cc83a49cace1dc2eeef
[INFO] running `Command { std: "docker" "start" "-a" "1cab2050feb0544b0bbf17bbf9a91e56e24916e5d8c37cc83a49cace1dc2eeef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1cab2050feb0544b0bbf17bbf9a91e56e24916e5d8c37cc83a49cace1dc2eeef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cab2050feb0544b0bbf17bbf9a91e56e24916e5d8c37cc83a49cace1dc2eeef", kill_on_drop: false }`
[INFO] [stdout] 1cab2050feb0544b0bbf17bbf9a91e56e24916e5d8c37cc83a49cace1dc2eeef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 786719785eb7f199eed19fa383897cf14b5c17e8cffc01a93859387aaa4f8cf3
[INFO] running `Command { std: "docker" "start" "-a" "786719785eb7f199eed19fa383897cf14b5c17e8cffc01a93859387aaa4f8cf3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]    Compiling nix v0.30.1
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]    Compiling libloading v0.8.7
[INFO] [stderr]     Checking arrayvec v0.7.6
[INFO] [stderr]     Checking anstream v0.6.19
[INFO] [stderr]     Checking jiff v0.2.15
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]     Checking etherparse v0.18.0
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]     Checking errno v0.2.8
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]     Checking mac_address v1.1.8
[INFO] [stderr]     Checking thiserror v2.0.12
[INFO] [stderr]     Checking ctrlc v3.4.7
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling pcap v2.2.0
[INFO] [stderr]     Checking env_filter v0.1.3
[INFO] [stderr]     Checking env_logger v0.11.8
[INFO] [stderr]     Checking mydhcp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `clear_socket_timeout` is never used
[INFO] [stdout]   --> src/helper/socket.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl SocketFd {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 72 |     pub fn clear_socket_timeout(&self) -> std::io::Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<u8>, Infallible>
[INFO] [stdout]    --> src/helper/dhcp.rs:622:27
[INFO] [stdout]     |
[INFO] [stdout] 622 |             dhcp_options: bytes.get(240..)?.try_into().ok()?,
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mydhcp` (bin "mydhcp" test) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: method `clear_socket_timeout` is never used
[INFO] [stdout]   --> src/helper/socket.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl SocketFd {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 72 |     pub fn clear_socket_timeout(&self) -> std::io::Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<u8>, Infallible>
[INFO] [stdout]    --> src/helper/dhcp.rs:622:27
[INFO] [stdout]     |
[INFO] [stdout] 622 |             dhcp_options: bytes.get(240..)?.try_into().ok()?,
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mydhcp` (bin "mydhcp") due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "786719785eb7f199eed19fa383897cf14b5c17e8cffc01a93859387aaa4f8cf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "786719785eb7f199eed19fa383897cf14b5c17e8cffc01a93859387aaa4f8cf3", kill_on_drop: false }`
[INFO] [stdout] 786719785eb7f199eed19fa383897cf14b5c17e8cffc01a93859387aaa4f8cf3