[INFO] fetching crate menmos-antidns 0.2.6...
[INFO] checking menmos-antidns-0.2.6 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate menmos-antidns 0.2.6 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate menmos-antidns 0.2.6
[INFO] finished tweaking crates.io crate menmos-antidns 0.2.6
[INFO] tweaked toml for crates.io crate menmos-antidns 0.2.6 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate menmos-antidns 0.2.6 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 133 packages to latest compatible versions
[INFO] [stderr]       Adding nom v7.1.3 (available: v8.0.0)
[INFO] [stderr]       Adding snafu v0.7.5 (available: v0.8.9)
[INFO] [stderr]       Adding trust-dns-resolver v0.21.2 (available: v0.23.2)
[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] 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] 7c05e38b28981c04379b47ce37a10ca451446b535b8f81e0b67dca031f8097fa
[INFO] running `Command { std: "docker" "start" "-a" "7c05e38b28981c04379b47ce37a10ca451446b535b8f81e0b67dca031f8097fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c05e38b28981c04379b47ce37a10ca451446b535b8f81e0b67dca031f8097fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c05e38b28981c04379b47ce37a10ca451446b535b8f81e0b67dca031f8097fa", kill_on_drop: false }`
[INFO] [stdout] 7c05e38b28981c04379b47ce37a10ca451446b535b8f81e0b67dca031f8097fa
[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] af31c8a8a4235931f65a017f7f3f7ceb832ba287a9504f2fc05564b64641d14d
[INFO] running `Command { std: "docker" "start" "-a" "af31c8a8a4235931f65a017f7f3f7ceb832ba287a9504f2fc05564b64641d14d", kill_on_drop: false }`
[INFO] [stderr]     Checking matches v0.1.10
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling doc-comment v0.3.4
[INFO] [stderr]     Checking unicode-normalization v0.1.25
[INFO] [stderr]     Checking unicode-bidi v0.3.18
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking resolv-conf v0.7.5
[INFO] [stderr]     Checking portpicker v0.1.1
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]    Compiling enum-as-inner v0.4.0
[INFO] [stderr]    Compiling snafu-derive v0.7.5
[INFO] [stderr]     Checking trust-dns-proto v0.21.2
[INFO] [stderr]     Checking snafu v0.7.5
[INFO] [stderr]     Checking menmos-antidns v0.2.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking trust-dns-resolver v0.21.2
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Ipv4Addr, Infallible>
[INFO] [stdout]   --> src/extract.rs:25:33
[INFO] [stdout]    |
[INFO] [stdout] 25 |         |(a, _, b, _, c, _, d)| Ipv4Addr::try_from([a, b, c, d]),
[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 `menmos-antidns` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "af31c8a8a4235931f65a017f7f3f7ceb832ba287a9504f2fc05564b64641d14d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af31c8a8a4235931f65a017f7f3f7ceb832ba287a9504f2fc05564b64641d14d", kill_on_drop: false }`
[INFO] [stdout] af31c8a8a4235931f65a017f7f3f7ceb832ba287a9504f2fc05564b64641d14d