[INFO] fetching crate blueprint 0.0.1... [INFO] checking blueprint-0.0.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate blueprint 0.0.1 into /workspace/builds/worker-7-tc2/source [INFO] started tweaking crates.io crate blueprint 0.0.1 [INFO] removed 0 missing examples [INFO] finished tweaking crates.io crate blueprint 0.0.1 [INFO] tweaked toml for crates.io crate blueprint 0.0.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate blueprint 0.0.1 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 blueprint 0.0.1 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-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] 6bd4d1dcc4bf9b6d87e651e7836b89045e5f56aba570808989c84eb1c6340105 [INFO] running `Command { std: "docker" "start" "-a" "6bd4d1dcc4bf9b6d87e651e7836b89045e5f56aba570808989c84eb1c6340105", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6bd4d1dcc4bf9b6d87e651e7836b89045e5f56aba570808989c84eb1c6340105", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6bd4d1dcc4bf9b6d87e651e7836b89045e5f56aba570808989c84eb1c6340105", kill_on_drop: false }` [INFO] [stdout] 6bd4d1dcc4bf9b6d87e651e7836b89045e5f56aba570808989c84eb1c6340105 [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] 8a4f0dae2869dcc52429a6481d72b93f4ff74b4edb63f76fc8a42d377e663dd2 [INFO] running `Command { std: "docker" "start" "-a" "8a4f0dae2869dcc52429a6481d72b93f4ff74b4edb63f76fc8a42d377e663dd2", kill_on_drop: false }` [INFO] [stderr] Checking blueprint v0.0.1 (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> examples/knock-knock.rs:27:104 [INFO] [stdout] | [INFO] [stdout] 27 | fn advance_with(&mut self, _ud: &mut B, b_in: &mut [u8]) -> Result { [INFO] [stdout] | ________________________________________________________________________________________________________^ [INFO] [stdout] 28 | | match self { [INFO] [stdout] 29 | | Self::LeftSide(ref mut p) => { [INFO] [stdout] 30 | | assert_eq!(core::str::from_utf8(b_in).unwrap(), TRANSCRIPT[p.pos].0); [INFO] [stdout] ... | [INFO] [stdout] 47 | | } [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] --> examples/knock-knock.rs:28:9 [INFO] [stdout] | [INFO] [stdout] 28 | / match self { [INFO] [stdout] 29 | | Self::LeftSide(ref mut p) => { [INFO] [stdout] 30 | | assert_eq!(core::str::from_utf8(b_in).unwrap(), TRANSCRIPT[p.pos].0); [INFO] [stdout] 31 | | let ret = TRANSCRIPT[p.pos].1; [INFO] [stdout] ... | [INFO] [stdout] 45 | | }, [INFO] [stdout] 46 | | } [INFO] [stdout] | |_________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> examples/knock-knock.rs:29:42 [INFO] [stdout] | [INFO] [stdout] 29 | Self::LeftSide(ref mut p) => { [INFO] [stdout] | __________________________________________^ [INFO] [stdout] 30 | | assert_eq!(core::str::from_utf8(b_in).unwrap(), TRANSCRIPT[p.pos].0); [INFO] [stdout] 31 | | let ret = TRANSCRIPT[p.pos].1; [INFO] [stdout] 32 | | p.pos+=1; [INFO] [stdout] 33 | | Ok(Some(ret)) [INFO] [stdout] 34 | | }, [INFO] [stdout] | |_____________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> examples/knock-knock.rs:33:17 [INFO] [stdout] | [INFO] [stdout] 33 | Ok(Some(ret)) [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> examples/knock-knock.rs:35:43 [INFO] [stdout] | [INFO] [stdout] 35 | Self::RightSide(ref mut p) => { [INFO] [stdout] | ___________________________________________^ [INFO] [stdout] 36 | | assert_eq!(core::str::from_utf8(b_in).unwrap(), TRANSCRIPT[p.pos].1); [INFO] [stdout] 37 | | match TRANSCRIPT.len() > p.pos+1 { [INFO] [stdout] 38 | | false => Ok(None), [INFO] [stdout] ... | [INFO] [stdout] 45 | | }, [INFO] [stdout] | |_____________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> examples/knock-knock.rs:37:17 [INFO] [stdout] | [INFO] [stdout] 37 | / match TRANSCRIPT.len() > p.pos+1 { [INFO] [stdout] 38 | | false => Ok(None), [INFO] [stdout] 39 | | true => { [INFO] [stdout] 40 | | let ret = TRANSCRIPT[p.pos+1].0; [INFO] [stdout] ... | [INFO] [stdout] 44 | | } [INFO] [stdout] | |_________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> examples/knock-knock.rs:38:30 [INFO] [stdout] | [INFO] [stdout] 38 | false => Ok(None), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> examples/knock-knock.rs:39:29 [INFO] [stdout] | [INFO] [stdout] 39 | true => { [INFO] [stdout] | _____________________________^ [INFO] [stdout] 40 | | let ret = TRANSCRIPT[p.pos+1].0; [INFO] [stdout] 41 | | p.pos+=1; [INFO] [stdout] 42 | | Ok(Some(ret)) [INFO] [stdout] 43 | | } [INFO] [stdout] | |_____________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> examples/knock-knock.rs:42:25 [INFO] [stdout] | [INFO] [stdout] 42 | Ok(Some(ret)) [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> examples/knock-knock.rs:61:39 [INFO] [stdout] | [INFO] [stdout] 61 | while let Ok(Some(teller_resp)) = teller.advance_with(&mut empty, &mut buf_in) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> examples/knock-knock.rs:64:15 [INFO] [stdout] | [INFO] [stdout] 64 | match recipient.advance_with(&mut empty, &mut buf_out) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `blueprint` (example "knock-knock") due to 11 previous errors [INFO] running `Command { std: "docker" "inspect" "8a4f0dae2869dcc52429a6481d72b93f4ff74b4edb63f76fc8a42d377e663dd2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8a4f0dae2869dcc52429a6481d72b93f4ff74b4edb63f76fc8a42d377e663dd2", kill_on_drop: false }` [INFO] [stdout] 8a4f0dae2869dcc52429a6481d72b93f4ff74b4edb63f76fc8a42d377e663dd2