[INFO] fetching crate webdog 0.1.4...
[INFO] checking webdog-0.1.4 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate webdog 0.1.4 into /workspace/builds/worker-3-tc2/source
[INFO] removed /workspace/builds/worker-3-tc2/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-3-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate webdog 0.1.4
[INFO] finished tweaking crates.io crate webdog 0.1.4
[INFO] tweaked toml for crates.io crate webdog 0.1.4 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate webdog 0.1.4 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 webdog 0.1.4 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 49f0ab59bc0fc29ea71e94a90a8cbb7fc67c172aa50f2cf49943b2e05224cca8
[INFO] running `Command { std: "docker" "start" "-a" "49f0ab59bc0fc29ea71e94a90a8cbb7fc67c172aa50f2cf49943b2e05224cca8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49f0ab59bc0fc29ea71e94a90a8cbb7fc67c172aa50f2cf49943b2e05224cca8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49f0ab59bc0fc29ea71e94a90a8cbb7fc67c172aa50f2cf49943b2e05224cca8", kill_on_drop: false }`
[INFO] [stdout] 49f0ab59bc0fc29ea71e94a90a8cbb7fc67c172aa50f2cf49943b2e05224cca8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 464f0ff46b315fdb91ad84f6b2fb047888ace56191a14242899e8797dd163bb7
[INFO] running `Command { std: "docker" "start" "-a" "464f0ff46b315fdb91ad84f6b2fb047888ace56191a14242899e8797dd163bb7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.176
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[INFO] [stderr]     Checking phf_shared v0.11.3
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[INFO] [stderr]    Compiling phf_generator v0.8.0
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[INFO] [stderr]    Compiling chrono-tz v0.9.0
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[INFO] [stderr]     Checking backtrace v0.3.75
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[INFO] [stderr]    Compiling serde_derive v1.0.226
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[INFO] [stderr]    Compiling darling_macro v0.20.11
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[INFO] [stderr]     Checking zerotrie v0.2.2
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[INFO] [stderr]    Compiling darling v0.20.11
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[INFO] [stderr]    Compiling derive_builder_macro v0.20.2
[INFO] [stderr]    Compiling pest_meta v2.8.2
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[INFO] [stderr]    Compiling pest_generator v2.8.2
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[INFO] [stderr]     Checking icu_provider v2.0.0
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[INFO] [stderr]     Checking icu_normalizer v2.0.0
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[INFO] [stderr]     Checking syntect v5.2.0
[INFO] [stderr]     Checking warp v0.3.7
[INFO] [stderr]     Checking webdog v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]    --> src/serving.rs:315:17
[INFO] [stdout]     |
[INFO] [stdout] 315 |                       async move {
[INFO] [stdout]     |  ________________________________^
[INFO] [stdout] 316 | |                         // Handle missing files
[INFO] [stdout] 317 | |                         println!("404 - {}", path.as_str());
[INFO] [stdout] 318 | |                         let body = match std::fs::read_to_string(build_path.join("404.html")) {
[INFO] [stdout] ...   |
[INFO] [stdout] 324 | |                         Ok::<_, std::convert::Infallible>(res)
[INFO] [stdout] 325 | |                     }
[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<Response<Body>, Infallible>
[INFO] [stdout]    --> src/serving.rs:324:7
[INFO] [stdout]     |
[INFO] [stdout] 324 |                         Ok::<_, std::convert::Infallible>(res)
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `webdog` (lib test) 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<Response<Body>, Infallible>
[INFO] [stdout]    --> src/serving.rs:315:17
[INFO] [stdout]     |
[INFO] [stdout] 315 |                       async move {
[INFO] [stdout]     |  ________________________________^
[INFO] [stdout] 316 | |                         // Handle missing files
[INFO] [stdout] 317 | |                         println!("404 - {}", path.as_str());
[INFO] [stdout] 318 | |                         let body = match std::fs::read_to_string(build_path.join("404.html")) {
[INFO] [stdout] ...   |
[INFO] [stdout] 324 | |                         Ok::<_, std::convert::Infallible>(res)
[INFO] [stdout] 325 | |                     }
[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<Response<Body>, Infallible>
[INFO] [stdout]    --> src/serving.rs:324:7
[INFO] [stdout]     |
[INFO] [stdout] 324 |                         Ok::<_, std::convert::Infallible>(res)
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `webdog` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "464f0ff46b315fdb91ad84f6b2fb047888ace56191a14242899e8797dd163bb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "464f0ff46b315fdb91ad84f6b2fb047888ace56191a14242899e8797dd163bb7", kill_on_drop: false }`
[INFO] [stdout] 464f0ff46b315fdb91ad84f6b2fb047888ace56191a14242899e8797dd163bb7