[INFO] fetching crate streamparser 0.1.0...
[INFO] checking streamparser-0.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate streamparser 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate streamparser 0.1.0
[INFO] finished tweaking crates.io crate streamparser 0.1.0
[INFO] tweaked toml for crates.io crate streamparser 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate streamparser 0.1.0 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 13 packages to latest compatible versions
[INFO] [stderr]       Adding nom v5.1.3 (available: v8.0.0)
[INFO] [stderr]       Adding pin-project-lite v0.1.12 (available: v0.2.16)
[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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] b0541322cbf5e908db9d0b4d0533558fa6eabfa44cdf70b7449a253497198039
[INFO] running `Command { std: "docker" "start" "-a" "b0541322cbf5e908db9d0b4d0533558fa6eabfa44cdf70b7449a253497198039", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0541322cbf5e908db9d0b4d0533558fa6eabfa44cdf70b7449a253497198039", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0541322cbf5e908db9d0b4d0533558fa6eabfa44cdf70b7449a253497198039", kill_on_drop: false }`
[INFO] [stdout] b0541322cbf5e908db9d0b4d0533558fa6eabfa44cdf70b7449a253497198039
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 63c182be602802d599d7f67525776c2ff042d4f58ae6dfd09dd984ff6e087c37
[INFO] running `Command { std: "docker" "start" "-a" "63c182be602802d599d7f67525776c2ff042d4f58ae6dfd09dd984ff6e087c37", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]    Compiling doc-comment v0.3.4
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking assert_matches v1.5.0
[INFO] [stderr]     Checking direct-executor v0.3.0
[INFO] [stderr]     Checking streamparser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr] error: could not compile `streamparser` (lib) due to 1 previous error; 1 warning emitted
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:103:16
[INFO] [stdout]     |
[INFO] [stdout] 103 |     pub fn get(&mut self) -> Result<Option<Streaming<<P as Parse>::Output>>, <P as Parse>::Error>
[INFO] [stdout]     |                ^^^^^^^^^                             ^^^^^^^^^^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                |                                     |
[INFO] [stdout]     |                the lifetime is elided here           the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 103 |     pub fn get(&mut self) -> Result<Option<Streaming<<P as Parse<'_>>::Output>>, <P as Parse<'_>>::Error>
[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<<S as Stream>::Item, iter_source::Infallible>
[INFO] [stdout]   --> src/iter/iter_source.rs:39:57
[INFO] [stdout]    |
[INFO] [stdout] 39 |             Poll::Ready(Some(item)) => Poll::Ready(Some(Ok(item))),
[INFO] [stdout]    |                                                         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "63c182be602802d599d7f67525776c2ff042d4f58ae6dfd09dd984ff6e087c37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63c182be602802d599d7f67525776c2ff042d4f58ae6dfd09dd984ff6e087c37", kill_on_drop: false }`
[INFO] [stdout] 63c182be602802d599d7f67525776c2ff042d4f58ae6dfd09dd984ff6e087c37
