[INFO] fetching crate gwordle 0.1.2...
[INFO] checking gwordle-0.1.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate gwordle 0.1.2 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate gwordle 0.1.2
[INFO] finished tweaking crates.io crate gwordle 0.1.2
[INFO] tweaked toml for crates.io crate gwordle 0.1.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate gwordle 0.1.2 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 gwordle 0.1.2 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] a2506e49a10883c8987310b6b3a93d481cad0d493d3fa17493ac981dcbc04727
[INFO] running `Command { std: "docker" "start" "-a" "a2506e49a10883c8987310b6b3a93d481cad0d493d3fa17493ac981dcbc04727", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2506e49a10883c8987310b6b3a93d481cad0d493d3fa17493ac981dcbc04727", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2506e49a10883c8987310b6b3a93d481cad0d493d3fa17493ac981dcbc04727", kill_on_drop: false }`
[INFO] [stdout] a2506e49a10883c8987310b6b3a93d481cad0d493d3fa17493ac981dcbc04727
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] def4ffcf2b577394acc524839bff102efc398e87bbf2b07e3e446b9ab4f684e2
[INFO] running `Command { std: "docker" "start" "-a" "def4ffcf2b577394acc524839bff102efc398e87bbf2b07e3e446b9ab4f684e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.93
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking clap_lex v0.2.0
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.1.18
[INFO] [stderr]     Checking clap v3.1.18
[INFO] [stderr]     Checking gwordle v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `gwordle` (bin "gwordle") due to 3 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | /     #[clap(short, long, default_value=".....")]
[INFO] [stdout] 7 | |     matcher: String,
[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<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | /     #[clap(short, long, default_value = "")]
[INFO] [stdout] 10 | |     has: String,
[INFO] [stdout]    | |_______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     #[clap(short, long, default_value = "")]
[INFO] [stdout] 13 | |     exclude: String
[INFO] [stdout]    | |___________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | /     #[clap(short, long, default_value=".....")]
[INFO] [stdout] 7 | |     matcher: String,
[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<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | /     #[clap(short, long, default_value = "")]
[INFO] [stdout] 10 | |     has: String,
[INFO] [stdout]    | |_______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     #[clap(short, long, default_value = "")]
[INFO] [stdout] 13 | |     exclude: String
[INFO] [stdout]    | |___________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gwordle` (bin "gwordle" test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "def4ffcf2b577394acc524839bff102efc398e87bbf2b07e3e446b9ab4f684e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "def4ffcf2b577394acc524839bff102efc398e87bbf2b07e3e446b9ab4f684e2", kill_on_drop: false }`
[INFO] [stdout] def4ffcf2b577394acc524839bff102efc398e87bbf2b07e3e446b9ab4f684e2
