[INFO] fetching crate streaming-libdeflate-rs 0.2.2...
[INFO] checking streaming-libdeflate-rs-0.2.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate streaming-libdeflate-rs 0.2.2 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate streaming-libdeflate-rs 0.2.2
[INFO] finished tweaking crates.io crate streaming-libdeflate-rs 0.2.2
[INFO] tweaked toml for crates.io crate streaming-libdeflate-rs 0.2.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate streaming-libdeflate-rs 0.2.2 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 streaming-libdeflate-rs 0.2.2 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 2820063103c4071ef385cf19a31338205f47881f0d1aecaf07486751a06ab604
[INFO] running `Command { std: "docker" "start" "-a" "2820063103c4071ef385cf19a31338205f47881f0d1aecaf07486751a06ab604", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2820063103c4071ef385cf19a31338205f47881f0d1aecaf07486751a06ab604", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2820063103c4071ef385cf19a31338205f47881f0d1aecaf07486751a06ab604", kill_on_drop: false }`
[INFO] [stdout] 2820063103c4071ef385cf19a31338205f47881f0d1aecaf07486751a06ab604
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 2f1829e83d607e19afacb2e3f4ba708fe94736b6c8c1de20b0612bb4861337d3
[INFO] running `Command { std: "docker" "start" "-a" "2f1829e83d607e19afacb2e3f4ba708fe94736b6c8c1de20b0612bb4861337d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking filebuffer v1.0.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking nightly-quirks v0.1.5
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking streaming-libdeflate-rs v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `out_stream`
[INFO] [stdout]    --> src/bitstream.rs:254:13
[INFO] [stdout]     |
[INFO] [stdout] 254 |             out_stream: &mut O,
[INFO] [stdout]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_out_stream`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `length`
[INFO] [stdout]    --> src/bitstream.rs:255:13
[INFO] [stdout]     |
[INFO] [stdout] 255 |             length: usize,
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `LenType` is never used
[INFO] [stdout]    --> src/decompress_utils.rs:915:10
[INFO] [stdout]     |
[INFO] [stdout] 915 |     type LenType = u8;
[INFO] [stdout]     |          ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `streaming-libdeflate-rs` (bin "gzipd" test) due to 2 previous errors
[INFO] [stdout] warning: constant `DEFLATE_NUM_PRECODE_SYMS` is never used
[INFO] [stdout]    --> src/decompress_utils.rs:916:11
[INFO] [stdout]     |
[INFO] [stdout] 916 |     const DEFLATE_NUM_PRECODE_SYMS: usize = 19;
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]  --> src/bin/gzipd.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     input: PathBuf,
[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<PathBuf, Infallible>
[INFO] [stdout]   --> src/bin/gzipd.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     output: Option<PathBuf>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `streaming-libdeflate-rs` (bin "gzipd") due to 2 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]  --> src/bin/gzipd.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     input: PathBuf,
[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<PathBuf, Infallible>
[INFO] [stdout]   --> src/bin/gzipd.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     output: Option<PathBuf>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2f1829e83d607e19afacb2e3f4ba708fe94736b6c8c1de20b0612bb4861337d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f1829e83d607e19afacb2e3f4ba708fe94736b6c8c1de20b0612bb4861337d3", kill_on_drop: false }`
[INFO] [stdout] 2f1829e83d607e19afacb2e3f4ba708fe94736b6c8c1de20b0612bb4861337d3
