[INFO] fetching crate rtools 0.9.0... [INFO] checking rtools-0.9.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate rtools 0.9.0 into /workspace/builds/worker-6-tc2/source [INFO] started tweaking crates.io crate rtools 0.9.0 [INFO] finished tweaking crates.io crate rtools 0.9.0 [INFO] tweaked toml for crates.io crate rtools 0.9.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate rtools 0.9.0 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 rtools 0.9.0 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-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] 3d302c3ef5567422d306e435328445f07fccc5e3bf11068d6f6f01da1da61915 [INFO] running `Command { std: "docker" "start" "-a" "3d302c3ef5567422d306e435328445f07fccc5e3bf11068d6f6f01da1da61915", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3d302c3ef5567422d306e435328445f07fccc5e3bf11068d6f6f01da1da61915", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3d302c3ef5567422d306e435328445f07fccc5e3bf11068d6f6f01da1da61915", kill_on_drop: false }` [INFO] [stdout] 3d302c3ef5567422d306e435328445f07fccc5e3bf11068d6f6f01da1da61915 [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] d91d81d4ce2e2d882a9bed8d06b2ff027a61b4f85f19c82a05b0e314e1e1e902 [INFO] running `Command { std: "docker" "start" "-a" "d91d81d4ce2e2d882a9bed8d06b2ff027a61b4f85f19c82a05b0e314e1e1e902", kill_on_drop: false }` [INFO] [stderr] Compiling syn v2.0.91 [INFO] [stderr] Compiling serde v1.0.216 [INFO] [stderr] Compiling serde_json v1.0.134 [INFO] [stderr] Checking dirs-sys v0.5.0 [INFO] [stderr] Compiling rtools v0.9.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking parking_lot_core v0.9.10 [INFO] [stderr] Checking log v0.4.22 [INFO] [stderr] Compiling mutants v0.0.3 [INFO] [stderr] Checking chrono v0.4.39 [INFO] [stderr] Checking parking_lot v0.12.3 [INFO] [stderr] Checking dirs v6.0.0 [INFO] [stderr] Compiling serde_derive v1.0.216 [INFO] [stderr] Compiling tokio-macros v2.4.0 [INFO] [stderr] Checking tokio v1.42.0 [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/file.rs:164:17 [INFO] [stdout] | [INFO] [stdout] 164 | PathBuf::from_str(&format!("{prepend}build.rs")).unwrap(), [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/file.rs:165:17 [INFO] [stdout] | [INFO] [stdout] 165 | PathBuf::from_str(&format!("{prepend}Cargo.toml")).unwrap(), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/file.rs:166:17 [INFO] [stdout] | [INFO] [stdout] 166 | PathBuf::from_str(&format!("{prepend}src")).unwrap() [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rtools` (lib test) due to 3 previous errors [INFO] running `Command { std: "docker" "inspect" "d91d81d4ce2e2d882a9bed8d06b2ff027a61b4f85f19c82a05b0e314e1e1e902", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d91d81d4ce2e2d882a9bed8d06b2ff027a61b4f85f19c82a05b0e314e1e1e902", kill_on_drop: false }` [INFO] [stdout] d91d81d4ce2e2d882a9bed8d06b2ff027a61b4f85f19c82a05b0e314e1e1e902