[INFO] fetching crate rsocket_rust_transport_unix 0.5.3...
[INFO] checking rsocket_rust_transport_unix-0.5.3 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate rsocket_rust_transport_unix 0.5.3 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate rsocket_rust_transport_unix 0.5.3
[INFO] finished tweaking crates.io crate rsocket_rust_transport_unix 0.5.3
[INFO] tweaked toml for crates.io crate rsocket_rust_transport_unix 0.5.3 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rsocket_rust_transport_unix 0.5.3 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 44 packages to latest compatible versions
[INFO] [stderr]       Adding bytes v0.5.6 (available: v1.10.1)
[INFO] [stderr]       Adding rsocket_rust v0.5.3 (available: v0.7.5)
[INFO] [stderr]       Adding tokio v0.2.25 (available: v1.48.0)
[INFO] [stderr]       Adding tokio-util v0.3.1 (available: v0.7.17)
[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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 3d5225fb20cdcd05c1784910ec85b1d9b8406abc95afd7f0ecdbc95cffc8a2ee
[INFO] running `Command { std: "docker" "start" "-a" "3d5225fb20cdcd05c1784910ec85b1d9b8406abc95afd7f0ecdbc95cffc8a2ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d5225fb20cdcd05c1784910ec85b1d9b8406abc95afd7f0ecdbc95cffc8a2ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d5225fb20cdcd05c1784910ec85b1d9b8406abc95afd7f0ecdbc95cffc8a2ee", kill_on_drop: false }`
[INFO] [stdout] 3d5225fb20cdcd05c1784910ec85b1d9b8406abc95afd7f0ecdbc95cffc8a2ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 0488e0ef58d8de8aacbf79f11b33cd9c9707e0fb529360c2acd264c9bf61538e
[INFO] running `Command { std: "docker" "start" "-a" "0488e0ef58d8de8aacbf79f11b33cd9c9707e0fb529360c2acd264c9bf61538e", kill_on_drop: false }`
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.39
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking rsocket_rust v0.5.3
[INFO] [stderr]     Checking rsocket_rust_transport_unix v0.5.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/server.rs:57:34
[INFO] [stdout]    |
[INFO] [stdout] 57 |         UnixServerTransport::new(addr.parse().unwrap())
[INFO] [stdout]    |                                  ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/server.rs:63:34
[INFO] [stdout]    |
[INFO] [stdout] 63 |         UnixServerTransport::new(addr.parse().unwrap())
[INFO] [stdout]    |                                  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rsocket_rust_transport_unix` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/server.rs:57:34
[INFO] [stdout]    |
[INFO] [stdout] 57 |         UnixServerTransport::new(addr.parse().unwrap())
[INFO] [stdout]    |                                  ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/server.rs:63:34
[INFO] [stdout]    |
[INFO] [stdout] 63 |         UnixServerTransport::new(addr.parse().unwrap())
[INFO] [stdout]    |                                  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rsocket_rust_transport_unix` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "0488e0ef58d8de8aacbf79f11b33cd9c9707e0fb529360c2acd264c9bf61538e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0488e0ef58d8de8aacbf79f11b33cd9c9707e0fb529360c2acd264c9bf61538e", kill_on_drop: false }`
[INFO] [stdout] 0488e0ef58d8de8aacbf79f11b33cd9c9707e0fb529360c2acd264c9bf61538e