[INFO] fetching crate tuck 0.0.0...
[INFO] checking tuck-0.0.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate tuck 0.0.0 into /workspace/builds/worker-7-tc2/source
[INFO] removed /workspace/builds/worker-7-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate tuck 0.0.0
[INFO] finished tweaking crates.io crate tuck 0.0.0
[INFO] tweaked toml for crates.io crate tuck 0.0.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tuck 0.0.0 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 tuck 0.0.0 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] af63d0fdc7ecd8a3a270f7909f0a6ae93b8e14dca1e5f01392bb1dde256913d9
[INFO] running `Command { std: "docker" "start" "-a" "af63d0fdc7ecd8a3a270f7909f0a6ae93b8e14dca1e5f01392bb1dde256913d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af63d0fdc7ecd8a3a270f7909f0a6ae93b8e14dca1e5f01392bb1dde256913d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af63d0fdc7ecd8a3a270f7909f0a6ae93b8e14dca1e5f01392bb1dde256913d9", kill_on_drop: false }`
[INFO] [stdout] af63d0fdc7ecd8a3a270f7909f0a6ae93b8e14dca1e5f01392bb1dde256913d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 0b7b36c1ba4e44f532adb29179a5425b08e903d8a059a2680b97ef6acee9b200
[INFO] running `Command { std: "docker" "start" "-a" "0b7b36c1ba4e44f532adb29179a5425b08e903d8a059a2680b97ef6acee9b200", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.84
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling anyhow v1.0.52
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.0.0-rc.9
[INFO] [stderr]     Checking clap v3.0.0-rc.9
[INFO] [stderr]     Checking tuck v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, PathBuf>
[INFO] [stdout]   --> src/lib.rs:17:20
[INFO] [stdout]    |
[INFO] [stdout] 17 |         let path = PathBuf::from_str(s)?;
[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<PathBuf, Infallible>
[INFO] [stdout]   --> src/lib.rs:17:20
[INFO] [stdout]    |
[INFO] [stdout] 17 |         let path = PathBuf::from_str(s)?;
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tuck` (lib 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<Result<Infallible, Infallible>, PathBuf>
[INFO] [stdout]   --> src/lib.rs:17:20
[INFO] [stdout]    |
[INFO] [stdout] 17 |         let path = PathBuf::from_str(s)?;
[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<PathBuf, Infallible>
[INFO] [stdout]   --> src/lib.rs:17:20
[INFO] [stdout]    |
[INFO] [stdout] 17 |         let path = PathBuf::from_str(s)?;
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tuck` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "0b7b36c1ba4e44f532adb29179a5425b08e903d8a059a2680b97ef6acee9b200", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b7b36c1ba4e44f532adb29179a5425b08e903d8a059a2680b97ef6acee9b200", kill_on_drop: false }`
[INFO] [stdout] 0b7b36c1ba4e44f532adb29179a5425b08e903d8a059a2680b97ef6acee9b200
