[INFO] fetching crate hugr-passes 0.24.3...
[INFO] checking hugr-passes-0.24.3 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate hugr-passes 0.24.3 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate hugr-passes 0.24.3
[INFO] finished tweaking crates.io crate hugr-passes 0.24.3
[INFO] tweaked toml for crates.io crate hugr-passes 0.24.3 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate hugr-passes 0.24.3 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 hugr-passes 0.24.3 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] e194b4194390c986919ae0cb590afc6b17c29a704ac20fcc6274065ad0c13981
[INFO] running `Command { std: "docker" "start" "-a" "e194b4194390c986919ae0cb590afc6b17c29a704ac20fcc6274065ad0c13981", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e194b4194390c986919ae0cb590afc6b17c29a704ac20fcc6274065ad0c13981", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e194b4194390c986919ae0cb590afc6b17c29a704ac20fcc6274065ad0c13981", kill_on_drop: false }`
[INFO] [stdout] e194b4194390c986919ae0cb590afc6b17c29a704ac20fcc6274065ad0c13981
[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] e3b587a9c8c1e9c9308adb2e8ce9143ce1df0e866e51652b4a3e7e14186bbeb8
[INFO] running `Command { std: "docker" "start" "-a" "e3b587a9c8c1e9c9308adb2e8ce9143ce1df0e866e51652b4a3e7e14186bbeb8", kill_on_drop: false }`
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[INFO] [stderr]     Checking hugr-core v0.24.3
[INFO] [stderr]     Checking hugr-passes v0.24.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<hugr_core::ops::Value, Infallible>
[INFO] [stdout]    --> src/const_fold/value_handle.rs:162:70
[INFO] [stdout]     |
[INFO] [stdout] 162 |       fn from_value(value: ValueHandle<N>) -> Result<Self, Infallible> {
[INFO] [stdout]     |  ______________________________________________________________________^
[INFO] [stdout] 163 | |         Ok(match value {
[INFO] [stdout] 164 | |             ValueHandle::Hashable(HashedConst { val, .. })
[INFO] [stdout] 165 | |             | ValueHandle::Unhashable {
[INFO] [stdout] ...   |
[INFO] [stdout] 177 | |         })
[INFO] [stdout] 178 | |     }
[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<hugr_core::ops::Value, Infallible>
[INFO] [stdout]    --> src/const_fold/value_handle.rs:163:9
[INFO] [stdout]     |
[INFO] [stdout] 163 | /         Ok(match value {
[INFO] [stdout] 164 | |             ValueHandle::Hashable(HashedConst { val, .. })
[INFO] [stdout] 165 | |             | ValueHandle::Unhashable {
[INFO] [stdout] 166 | |                 leaf: Either::Left(val),
[INFO] [stdout] ...   |
[INFO] [stdout] 176 | |                 .unwrap(),
[INFO] [stdout] 177 | |         })
[INFO] [stdout]     | |__________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<[hugr_core::Node; 3], Infallible>
[INFO] [stdout]   --> src/inline_dfgs.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 | /             h.apply_patch(InlineDFG(dfg.into()))
[INFO] [stdout] 33 | |                 .map_err(|err| -> Infallible {
[INFO] [stdout] 34 | |                     match err {
[INFO] [stdout] 35 | |                         InlineDFGError::CantInlineEntrypoint { .. } => {
[INFO] [stdout] ...  |
[INFO] [stdout] 41 | |                 })
[INFO] [stdout]    | |__________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hugr-passes` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<hugr_core::ops::Value, Infallible>
[INFO] [stdout]    --> src/const_fold/value_handle.rs:162:70
[INFO] [stdout]     |
[INFO] [stdout] 162 |       fn from_value(value: ValueHandle<N>) -> Result<Self, Infallible> {
[INFO] [stdout]     |  ______________________________________________________________________^
[INFO] [stdout] 163 | |         Ok(match value {
[INFO] [stdout] 164 | |             ValueHandle::Hashable(HashedConst { val, .. })
[INFO] [stdout] 165 | |             | ValueHandle::Unhashable {
[INFO] [stdout] ...   |
[INFO] [stdout] 177 | |         })
[INFO] [stdout] 178 | |     }
[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<hugr_core::ops::Value, Infallible>
[INFO] [stdout]    --> src/const_fold/value_handle.rs:163:9
[INFO] [stdout]     |
[INFO] [stdout] 163 | /         Ok(match value {
[INFO] [stdout] 164 | |             ValueHandle::Hashable(HashedConst { val, .. })
[INFO] [stdout] 165 | |             | ValueHandle::Unhashable {
[INFO] [stdout] 166 | |                 leaf: Either::Left(val),
[INFO] [stdout] ...   |
[INFO] [stdout] 176 | |                 .unwrap(),
[INFO] [stdout] 177 | |         })
[INFO] [stdout]     | |__________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<hugr_core::ops::Value, Infallible>
[INFO] [stdout]   --> src/dataflow/test.rs:43:56
[INFO] [stdout]    |
[INFO] [stdout] 43 |       fn from_value(v: Void) -> Result<Self, Infallible> {
[INFO] [stdout]    |  ________________________________________________________^
[INFO] [stdout] 44 | |         match v {}
[INFO] [stdout] 45 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<[hugr_core::Node; 3], Infallible>
[INFO] [stdout]   --> src/inline_dfgs.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 | /             h.apply_patch(InlineDFG(dfg.into()))
[INFO] [stdout] 33 | |                 .map_err(|err| -> Infallible {
[INFO] [stdout] 34 | |                     match err {
[INFO] [stdout] 35 | |                         InlineDFGError::CantInlineEntrypoint { .. } => {
[INFO] [stdout] ...  |
[INFO] [stdout] 41 | |                 })
[INFO] [stdout]    | |__________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hugr-passes` (lib test) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "e3b587a9c8c1e9c9308adb2e8ce9143ce1df0e866e51652b4a3e7e14186bbeb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3b587a9c8c1e9c9308adb2e8ce9143ce1df0e866e51652b4a3e7e14186bbeb8", kill_on_drop: false }`
[INFO] [stdout] e3b587a9c8c1e9c9308adb2e8ce9143ce1df0e866e51652b4a3e7e14186bbeb8