[INFO] fetching crate wns 1.0.1...
[INFO] checking wns-1.0.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate wns 1.0.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate wns 1.0.1
[INFO] finished tweaking crates.io crate wns 1.0.1
[INFO] tweaked toml for crates.io crate wns 1.0.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wns 1.0.1 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 wns 1.0.1 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] [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] bfcdca05b7119dcafcd39a2e9fcaba5f3ee337dec34cbec6ebcea29616815610
[INFO] running `Command { std: "docker" "start" "-a" "bfcdca05b7119dcafcd39a2e9fcaba5f3ee337dec34cbec6ebcea29616815610", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bfcdca05b7119dcafcd39a2e9fcaba5f3ee337dec34cbec6ebcea29616815610", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfcdca05b7119dcafcd39a2e9fcaba5f3ee337dec34cbec6ebcea29616815610", kill_on_drop: false }`
[INFO] [stdout] bfcdca05b7119dcafcd39a2e9fcaba5f3ee337dec34cbec6ebcea29616815610
[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] 6273d1a2357985c9750dc9b1ff2f711d840b8dff5303c076d3d185bdc5d244e2
[INFO] running `Command { std: "docker" "start" "-a" "6273d1a2357985c9750dc9b1ff2f711d840b8dff5303c076d3d185bdc5d244e2", kill_on_drop: false }`
[INFO] [stderr]     Checking wns v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/main.rs:742:33
[INFO] [stdout]     |
[INFO] [stdout] 742 |         let current_file_path = std::path::PathBuf::from_str(self.file.path.as_str())
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wns` (bin "wns") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/main.rs:742:33
[INFO] [stdout]     |
[INFO] [stdout] 742 |         let current_file_path = std::path::PathBuf::from_str(self.file.path.as_str())
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wns` (bin "wns" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "6273d1a2357985c9750dc9b1ff2f711d840b8dff5303c076d3d185bdc5d244e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6273d1a2357985c9750dc9b1ff2f711d840b8dff5303c076d3d185bdc5d244e2", kill_on_drop: false }`
[INFO] [stdout] 6273d1a2357985c9750dc9b1ff2f711d840b8dff5303c076d3d185bdc5d244e2