[INFO] fetching crate rocket_async_compression 0.6.1...
[INFO] checking rocket_async_compression-0.6.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate rocket_async_compression 0.6.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate rocket_async_compression 0.6.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rocket_async_compression 0.6.1
[INFO] tweaked toml for crates.io crate rocket_async_compression 0.6.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rocket_async_compression 0.6.1 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 rocket_async_compression 0.6.1 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-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] 4899f59ed61e50893152a1335f5205ad1acbb1ba0a3d23b01dffe3868098f30b
[INFO] running `Command { std: "docker" "start" "-a" "4899f59ed61e50893152a1335f5205ad1acbb1ba0a3d23b01dffe3868098f30b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4899f59ed61e50893152a1335f5205ad1acbb1ba0a3d23b01dffe3868098f30b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4899f59ed61e50893152a1335f5205ad1acbb1ba0a3d23b01dffe3868098f30b", kill_on_drop: false }`
[INFO] [stdout] 4899f59ed61e50893152a1335f5205ad1acbb1ba0a3d23b01dffe3868098f30b
[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] 0f5e0caee4dcbadd4616d2dac3cfb300abe2825814f05c57482b0ac74c26fae9
[INFO] running `Command { std: "docker" "start" "-a" "0f5e0caee4dcbadd4616d2dac3cfb300abe2825814f05c57482b0ac74c26fae9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
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[INFO] [stderr]    Compiling devise v0.4.2
[INFO] [stderr]     Checking toml v0.5.9
[INFO] [stderr]     Checking ubyte v0.10.3
[INFO] [stderr]    Compiling rocket_codegen v0.5.1
[INFO] [stderr]     Checking rocket_async_compression v0.6.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<Encoding, Infallible>
[INFO] [stdout]   --> src/lib.rs:88:72
[INFO] [stdout]    |
[INFO] [stdout] 88 |       fn from_str(s: &str) -> Result<Encoding, std::convert::Infallible> {
[INFO] [stdout]    |  ________________________________________________________________________^
[INFO] [stdout] 89 | |         match s {
[INFO] [stdout] 90 | |             "chunked" => Ok(Encoding::Chunked),
[INFO] [stdout] 91 | |             "br" => Ok(Encoding::Brotli),
[INFO] [stdout] ...  |
[INFO] [stdout] 99 | |     }
[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<Encoding, Infallible>
[INFO] [stdout]   --> src/lib.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 | /         match s {
[INFO] [stdout] 90 | |             "chunked" => Ok(Encoding::Chunked),
[INFO] [stdout] 91 | |             "br" => Ok(Encoding::Brotli),
[INFO] [stdout] 92 | |             "deflate" => Ok(Encoding::Deflate),
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |             _ => Ok(Encoding::EncodingExt(s.to_owned())),
[INFO] [stdout] 98 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Encoding, Infallible>
[INFO] [stdout]   --> src/lib.rs:90:26
[INFO] [stdout]    |
[INFO] [stdout] 90 |             "chunked" => Ok(Encoding::Chunked),
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Encoding, Infallible>
[INFO] [stdout]   --> src/lib.rs:91:21
[INFO] [stdout]    |
[INFO] [stdout] 91 |             "br" => Ok(Encoding::Brotli),
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Encoding, Infallible>
[INFO] [stdout]   --> src/lib.rs:92:26
[INFO] [stdout]    |
[INFO] [stdout] 92 |             "deflate" => Ok(Encoding::Deflate),
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Encoding, Infallible>
[INFO] [stdout]   --> src/lib.rs:93:23
[INFO] [stdout]    |
[INFO] [stdout] 93 |             "gzip" => Ok(Encoding::Gzip),
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Encoding, Infallible>
[INFO] [stdout]   --> src/lib.rs:94:27
[INFO] [stdout]    |
[INFO] [stdout] 94 |             "compress" => Ok(Encoding::Compress),
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Encoding, Infallible>
[INFO] [stdout]   --> src/lib.rs:95:27
[INFO] [stdout]    |
[INFO] [stdout] 95 |             "identity" => Ok(Encoding::Identity),
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Encoding, Infallible>
[INFO] [stdout]   --> src/lib.rs:96:27
[INFO] [stdout]    |
[INFO] [stdout] 96 |             "trailers" => Ok(Encoding::Trailers),
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Encoding, Infallible>
[INFO] [stdout]   --> src/lib.rs:97:18
[INFO] [stdout]    |
[INFO] [stdout] 97 |             _ => Ok(Encoding::EncodingExt(s.to_owned())),
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rocket_async_compression` (lib test) due to 10 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<Encoding, Infallible>
[INFO] [stdout]   --> src/lib.rs:88:72
[INFO] [stdout]    |
[INFO] [stdout] 88 |       fn from_str(s: &str) -> Result<Encoding, std::convert::Infallible> {
[INFO] [stdout]    |  ________________________________________________________________________^
[INFO] [stdout] 89 | |         match s {
[INFO] [stdout] 90 | |             "chunked" => Ok(Encoding::Chunked),
[INFO] [stdout] 91 | |             "br" => Ok(Encoding::Brotli),
[INFO] [stdout] ...  |
[INFO] [stdout] 99 | |     }
[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<Encoding, Infallible>
[INFO] [stdout]   --> src/lib.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 | /         match s {
[INFO] [stdout] 90 | |             "chunked" => Ok(Encoding::Chunked),
[INFO] [stdout] 91 | |             "br" => Ok(Encoding::Brotli),
[INFO] [stdout] 92 | |             "deflate" => Ok(Encoding::Deflate),
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |             _ => Ok(Encoding::EncodingExt(s.to_owned())),
[INFO] [stdout] 98 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Encoding, Infallible>
[INFO] [stdout]   --> src/lib.rs:90:26
[INFO] [stdout]    |
[INFO] [stdout] 90 |             "chunked" => Ok(Encoding::Chunked),
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Encoding, Infallible>
[INFO] [stdout]   --> src/lib.rs:91:21
[INFO] [stdout]    |
[INFO] [stdout] 91 |             "br" => Ok(Encoding::Brotli),
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Encoding, Infallible>
[INFO] [stdout]   --> src/lib.rs:92:26
[INFO] [stdout]    |
[INFO] [stdout] 92 |             "deflate" => Ok(Encoding::Deflate),
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Encoding, Infallible>
[INFO] [stdout]   --> src/lib.rs:93:23
[INFO] [stdout]    |
[INFO] [stdout] 93 |             "gzip" => Ok(Encoding::Gzip),
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Encoding, Infallible>
[INFO] [stdout]   --> src/lib.rs:94:27
[INFO] [stdout]    |
[INFO] [stdout] 94 |             "compress" => Ok(Encoding::Compress),
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Encoding, Infallible>
[INFO] [stdout]   --> src/lib.rs:95:27
[INFO] [stdout]    |
[INFO] [stdout] 95 |             "identity" => Ok(Encoding::Identity),
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Encoding, Infallible>
[INFO] [stdout]   --> src/lib.rs:96:27
[INFO] [stdout]    |
[INFO] [stdout] 96 |             "trailers" => Ok(Encoding::Trailers),
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Encoding, Infallible>
[INFO] [stdout]   --> src/lib.rs:97:18
[INFO] [stdout]    |
[INFO] [stdout] 97 |             _ => Ok(Encoding::EncodingExt(s.to_owned())),
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rocket_async_compression` (lib) due to 10 previous errors
[INFO] running `Command { std: "docker" "inspect" "0f5e0caee4dcbadd4616d2dac3cfb300abe2825814f05c57482b0ac74c26fae9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f5e0caee4dcbadd4616d2dac3cfb300abe2825814f05c57482b0ac74c26fae9", kill_on_drop: false }`
[INFO] [stdout] 0f5e0caee4dcbadd4616d2dac3cfb300abe2825814f05c57482b0ac74c26fae9
