[INFO] fetching crate koit 0.2.0... [INFO] checking koit-0.2.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate koit 0.2.0 into /workspace/builds/worker-2-tc2/source [INFO] started tweaking crates.io crate koit 0.2.0 [INFO] finished tweaking crates.io crate koit 0.2.0 [INFO] tweaked toml for crates.io crate koit 0.2.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate koit 0.2.0 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] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 34 packages to latest compatible versions [INFO] [stderr] Adding bincode v1.3.3 (available: v2.0.1) [INFO] [stderr] Adding thiserror v1.0.69 (available: v2.0.17) [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] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [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] bcb2af1fea1064b926cc959e5dfeb5577bff3d8ab0c09f8251362dbc5a383521 [INFO] running `Command { std: "docker" "start" "-a" "bcb2af1fea1064b926cc959e5dfeb5577bff3d8ab0c09f8251362dbc5a383521", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bcb2af1fea1064b926cc959e5dfeb5577bff3d8ab0c09f8251362dbc5a383521", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bcb2af1fea1064b926cc959e5dfeb5577bff3d8ab0c09f8251362dbc5a383521", kill_on_drop: false }` [INFO] [stdout] bcb2af1fea1064b926cc959e5dfeb5577bff3d8ab0c09f8251362dbc5a383521 [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] 2a8e507fa152a964f2a076df852ccf63ce34db1a84cead011d86d7571c20f84a [INFO] running `Command { std: "docker" "start" "-a" "2a8e507fa152a964f2a076df852ccf63ce34db1a84cead011d86d7571c20f84a", kill_on_drop: false }` [INFO] [stderr] Compiling serde_derive v1.0.228 [INFO] [stderr] Checking tokio v1.48.0 [INFO] [stderr] Checking serde v1.0.228 [INFO] [stderr] Checking bincode v1.3.3 [INFO] [stderr] Checking koit v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/backend.rs:92:5 [INFO] [stdout] | [INFO] [stdout] 92 | async fn read(&mut self) -> Result, Self::Error> { [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, Infallible> [INFO] [stdout] --> src/backend.rs:88:1 [INFO] [stdout] | [INFO] [stdout] 88 | #[async_trait] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the attribute macro `async_trait` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/backend.rs:92:62 [INFO] [stdout] | [INFO] [stdout] 92 | async fn read(&mut self) -> Result, Self::Error> { [INFO] [stdout] | ______________________________________________________________^ [INFO] [stdout] 93 | | Ok(self.0.clone()) [INFO] [stdout] 94 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/backend.rs:93:9 [INFO] [stdout] | [INFO] [stdout] 93 | Ok(self.0.clone()) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/backend.rs:92:5 [INFO] [stdout] | [INFO] [stdout] 92 | async fn read(&mut self) -> Result, Self::Error> { [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, Infallible> [INFO] [stdout] --> src/backend.rs:88:1 [INFO] [stdout] | [INFO] [stdout] 88 | #[async_trait] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the attribute macro `async_trait` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/backend.rs:92:62 [INFO] [stdout] | [INFO] [stdout] 92 | async fn read(&mut self) -> Result, Self::Error> { [INFO] [stdout] | ______________________________________________________________^ [INFO] [stdout] 93 | | Ok(self.0.clone()) [INFO] [stdout] 94 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/backend.rs:93:9 [INFO] [stdout] | [INFO] [stdout] 93 | Ok(self.0.clone()) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `koit` (lib) due to 4 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `koit` (lib test) due to 4 previous errors [INFO] running `Command { std: "docker" "inspect" "2a8e507fa152a964f2a076df852ccf63ce34db1a84cead011d86d7571c20f84a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2a8e507fa152a964f2a076df852ccf63ce34db1a84cead011d86d7571c20f84a", kill_on_drop: false }` [INFO] [stdout] 2a8e507fa152a964f2a076df852ccf63ce34db1a84cead011d86d7571c20f84a