[INFO] fetching crate expr-solver-bin 1.2.0... [INFO] checking expr-solver-bin-1.2.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate expr-solver-bin 1.2.0 into /workspace/builds/worker-0-tc2/source [INFO] started tweaking crates.io crate expr-solver-bin 1.2.0 [INFO] finished tweaking crates.io crate expr-solver-bin 1.2.0 [INFO] tweaked toml for crates.io crate expr-solver-bin 1.2.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate expr-solver-bin 1.2.0 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] crate crates.io crate expr-solver-bin 1.2.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 9d1173b6330d7338cad4d1177f3b64438353603f48a4a5f2ffea1b91b068e9ca [INFO] running `Command { std: "docker" "start" "-a" "9d1173b6330d7338cad4d1177f3b64438353603f48a4a5f2ffea1b91b068e9ca", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9d1173b6330d7338cad4d1177f3b64438353603f48a4a5f2ffea1b91b068e9ca", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9d1173b6330d7338cad4d1177f3b64438353603f48a4a5f2ffea1b91b068e9ca", kill_on_drop: false }` [INFO] [stdout] 9d1173b6330d7338cad4d1177f3b64438353603f48a4a5f2ffea1b91b068e9ca [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 8bb213a307d66e43d49cf5d9d711af89a05542ff9cd9a91102d6247667d80846 [INFO] running `Command { std: "docker" "start" "-a" "8bb213a307d66e43d49cf5d9d711af89a05542ff9cd9a91102d6247667d80846", kill_on_drop: false }` [INFO] [stderr] Compiling virtue v0.0.18 [INFO] [stderr] Checking unty v0.0.4 [INFO] [stderr] Compiling syn v2.0.106 [INFO] [stderr] Checking anstream v0.6.21 [INFO] [stderr] Checking clap_builder v4.5.49 [INFO] [stderr] Compiling bincode_derive v2.0.1 [INFO] [stderr] Compiling serde_derive v1.0.228 [INFO] [stderr] Compiling thiserror-impl v2.0.17 [INFO] [stderr] Compiling clap_derive v4.5.49 [INFO] [stderr] Checking thiserror v2.0.17 [INFO] [stderr] Checking clap v4.5.49 [INFO] [stderr] Checking serde v1.0.228 [INFO] [stderr] Checking bincode v2.0.1 [INFO] [stderr] Checking expr-solver-lib v1.2.0 [INFO] [stderr] Checking expr-solver-bin v1.2.0 (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: ControlFlow, std::string::String> [INFO] [stdout] --> src/main.rs:43:15 [INFO] [stdout] | [INFO] [stdout] 43 | let key = s[..pos].parse()?; [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 [INFO] [stdout] --> src/main.rs:43:15 [INFO] [stdout] | [INFO] [stdout] 43 | let key = s[..pos].parse()?; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `expr-solver-bin` (bin "expr-solver" test) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: this type will no longer be must used: ControlFlow, std::string::String> [INFO] [stdout] --> src/main.rs:43:15 [INFO] [stdout] | [INFO] [stdout] 43 | let key = s[..pos].parse()?; [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 [INFO] [stdout] --> src/main.rs:43:15 [INFO] [stdout] | [INFO] [stdout] 43 | let key = s[..pos].parse()?; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `expr-solver-bin` (bin "expr-solver") due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "8bb213a307d66e43d49cf5d9d711af89a05542ff9cd9a91102d6247667d80846", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8bb213a307d66e43d49cf5d9d711af89a05542ff9cd9a91102d6247667d80846", kill_on_drop: false }` [INFO] [stdout] 8bb213a307d66e43d49cf5d9d711af89a05542ff9cd9a91102d6247667d80846