[INFO] fetching crate card-stack 0.1.0... [INFO] checking card-stack-0.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate card-stack 0.1.0 into /workspace/builds/worker-6-tc2/source [INFO] started tweaking crates.io crate card-stack 0.1.0 [INFO] finished tweaking crates.io crate card-stack 0.1.0 [INFO] tweaked toml for crates.io crate card-stack 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate card-stack 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] crate crates.io crate card-stack 0.1.0 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] [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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] ac56899e8910df837f62f01906447ebf3aada213a5eb4d5e54b237fc1d1299e8 [INFO] running `Command { std: "docker" "start" "-a" "ac56899e8910df837f62f01906447ebf3aada213a5eb4d5e54b237fc1d1299e8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ac56899e8910df837f62f01906447ebf3aada213a5eb4d5e54b237fc1d1299e8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ac56899e8910df837f62f01906447ebf3aada213a5eb4d5e54b237fc1d1299e8", kill_on_drop: false }` [INFO] [stdout] ac56899e8910df837f62f01906447ebf3aada213a5eb4d5e54b237fc1d1299e8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] c63b3264d86e7b0a591e23536c7a01cb40f5e8b47e34538f3ece220e07f9ab27 [INFO] running `Command { std: "docker" "start" "-a" "c63b3264d86e7b0a591e23536c7a01cb40f5e8b47e34538f3ece220e07f9ab27", kill_on_drop: false }` [INFO] [stderr] Compiling thiserror v2.0.14 [INFO] [stderr] Compiling syn v2.0.105 [INFO] [stderr] Compiling thiserror-impl v2.0.14 [INFO] [stderr] Checking card-stack v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: Result, PriorityError> [INFO] [stdout] --> src/requirements.rs:109:7 [INFO] [stdout] | [INFO] [stdout] 109 | > { [INFO] [stdout] | _______^ [INFO] [stdout] 110 | | Ok(RequirementAction::new(priority, action, source, ())) [INFO] [stdout] 111 | | } [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, PriorityError> [INFO] [stdout] --> src/requirements.rs:110:9 [INFO] [stdout] | [INFO] [stdout] 110 | Ok(RequirementAction::new(priority, action, source, ())) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `card-stack` (lib test) due to 2 previous errors [INFO] [stdout] error: this type will no longer be must used: Result, PriorityError> [INFO] [stdout] --> src/requirements.rs:109:7 [INFO] [stdout] | [INFO] [stdout] 109 | > { [INFO] [stdout] | _______^ [INFO] [stdout] 110 | | Ok(RequirementAction::new(priority, action, source, ())) [INFO] [stdout] 111 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [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, PriorityError> [INFO] [stdout] --> src/requirements.rs:110:9 [INFO] [stdout] | [INFO] [stdout] 110 | Ok(RequirementAction::new(priority, action, source, ())) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `card-stack` (lib) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "c63b3264d86e7b0a591e23536c7a01cb40f5e8b47e34538f3ece220e07f9ab27", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c63b3264d86e7b0a591e23536c7a01cb40f5e8b47e34538f3ece220e07f9ab27", kill_on_drop: false }` [INFO] [stdout] c63b3264d86e7b0a591e23536c7a01cb40f5e8b47e34538f3ece220e07f9ab27