[INFO] fetching crate pinus 0.0.4...
[INFO] checking pinus-0.0.4 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate pinus 0.0.4 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate pinus 0.0.4
[INFO] finished tweaking crates.io crate pinus 0.0.4
[INFO] tweaked toml for crates.io crate pinus 0.0.4 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pinus 0.0.4 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] 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 92 packages to latest compatible versions
[INFO] [stderr]       Adding parking_lot v0.11.2 (available: v0.12.5)
[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] acd4c88831ce1c140761439574f87845293fbb882ed788b7ffac9e3287a46772
[INFO] running `Command { std: "docker" "start" "-a" "acd4c88831ce1c140761439574f87845293fbb882ed788b7ffac9e3287a46772", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "acd4c88831ce1c140761439574f87845293fbb882ed788b7ffac9e3287a46772", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acd4c88831ce1c140761439574f87845293fbb882ed788b7ffac9e3287a46772", kill_on_drop: false }`
[INFO] [stdout] acd4c88831ce1c140761439574f87845293fbb882ed788b7ffac9e3287a46772
[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] a78ccb1fd0edefd8d8b1fc4df473102aba143581e7c3905f0e6664096912b441
[INFO] running `Command { std: "docker" "start" "-a" "a78ccb1fd0edefd8d8b1fc4df473102aba143581e7c3905f0e6664096912b441", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]     Checking instant v0.1.13
[INFO] [stderr]     Checking regex-syntax v0.8.8
[INFO] [stderr]    Compiling pulldown-cmark v0.9.6
[INFO] [stderr]    Compiling cargo-husky v1.5.0
[INFO] [stderr]    Compiling doc-comment v0.3.4
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.3.55
[INFO] [stderr]     Checking this-is-fine v0.0.1
[INFO] [stderr]     Checking semver v1.0.27
[INFO] [stderr]     Checking git_info v0.1.3
[INFO] [stderr]     Checking wasm-bindgen v0.2.105
[INFO] [stderr]     Checking serde_spanned v0.6.9
[INFO] [stderr]     Checking toml_datetime v0.6.11
[INFO] [stderr]     Checking url v2.5.7
[INFO] [stderr]     Checking parking_lot_core v0.8.6
[INFO] [stderr]     Checking toml_edit v0.19.15
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking pinus v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this type continue be must used: Result<(&V, Result<(), (K, {closure@src/prelude.rs:72:29: 72:34})>), Infallible>
[INFO] [stdout]   --> src/prelude.rs:72:3
[INFO] [stdout]    |
[INFO] [stdout] 72 | /         self.try_insert_with(key, |key| {
[INFO] [stdout] 73 | |             value_factory.take().expect("unreachable")(key).pipe(Ok)
[INFO] [stdout] 74 | |         })
[INFO] [stdout]    | |__________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mustuse_in_always_ok)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pinus` (lib) due to 4 previous errors; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: this type continue be must used: Result<(&mut V, Result<(), (K, {closure@src/prelude.rs:138:33: 138:38})>), Infallible>
[INFO] [stdout]    --> src/prelude.rs:138:3
[INFO] [stdout]     |
[INFO] [stdout] 138 | /         self.try_insert_with_mut(key, |key| {
[INFO] [stdout] 139 | |             value_factory.take().expect("unreachable")(key).pipe(Ok)
[INFO] [stdout] 140 | |         })
[INFO] [stdout]     | |__________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this type continue be must used: Result<(&V, Result<(), (K, {closure@src/prelude.rs:226:30: 226:41})>), Infallible>
[INFO] [stdout]    --> src/prelude.rs:226:3
[INFO] [stdout]     |
[INFO] [stdout] 226 | /         self.try_emplace_with(key, |key, slot| {
[INFO] [stdout] 227 | |             value_factory.take().expect("unreachable")(key, slot).pipe(Ok)
[INFO] [stdout] 228 | |         })
[INFO] [stdout]     | |__________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&mut V, Infallible>
[INFO] [stdout]    --> src/prelude.rs:226:42
[INFO] [stdout]     |
[INFO] [stdout] 226 |           self.try_emplace_with(key, |key, slot| {
[INFO] [stdout]     |  ________________________________________________^
[INFO] [stdout] 227 | |             value_factory.take().expect("unreachable")(key, slot).pipe(Ok)
[INFO] [stdout] 228 | |         })
[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<&mut V, Infallible>
[INFO] [stdout]    --> src/prelude.rs:227:4
[INFO] [stdout]     |
[INFO] [stdout] 227 |             value_factory.take().expect("unreachable")(key, slot).pipe(Ok)
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this type continue be must used: Result<(&mut V, Result<(), (K, {closure@src/prelude.rs:276:34: 276:45})>), Infallible>
[INFO] [stdout]    --> src/prelude.rs:276:3
[INFO] [stdout]     |
[INFO] [stdout] 276 | /         self.try_emplace_with_mut(key, |key, slot| {
[INFO] [stdout] 277 | |             value_factory.take().expect("unreachable")(key, slot).pipe(Ok)
[INFO] [stdout] 278 | |         })
[INFO] [stdout]     | |__________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&mut V, Infallible>
[INFO] [stdout]    --> src/prelude.rs:276:46
[INFO] [stdout]     |
[INFO] [stdout] 276 |           self.try_emplace_with_mut(key, |key, slot| {
[INFO] [stdout]     |  ____________________________________________________^
[INFO] [stdout] 277 | |             value_factory.take().expect("unreachable")(key, slot).pipe(Ok)
[INFO] [stdout] 278 | |         })
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&mut V, Infallible>
[INFO] [stdout]    --> src/prelude.rs:277:4
[INFO] [stdout]     |
[INFO] [stdout] 277 |             value_factory.take().expect("unreachable")(key, slot).pipe(Ok)
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a78ccb1fd0edefd8d8b1fc4df473102aba143581e7c3905f0e6664096912b441", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a78ccb1fd0edefd8d8b1fc4df473102aba143581e7c3905f0e6664096912b441", kill_on_drop: false }`
[INFO] [stdout] a78ccb1fd0edefd8d8b1fc4df473102aba143581e7c3905f0e6664096912b441