[INFO] fetching crate gtts_rs 0.1.0...
[INFO] checking gtts_rs-0.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate gtts_rs 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate gtts_rs 0.1.0
[INFO] finished tweaking crates.io crate gtts_rs 0.1.0
[INFO] tweaked toml for crates.io crate gtts_rs 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate gtts_rs 0.1.0 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 gtts_rs 0.1.0 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] 23ac10e31eda0d9034d7331b38f81bc24c30571202d9ac11ddcccaaef478c638
[INFO] running `Command { std: "docker" "start" "-a" "23ac10e31eda0d9034d7331b38f81bc24c30571202d9ac11ddcccaaef478c638", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23ac10e31eda0d9034d7331b38f81bc24c30571202d9ac11ddcccaaef478c638", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23ac10e31eda0d9034d7331b38f81bc24c30571202d9ac11ddcccaaef478c638", kill_on_drop: false }`
[INFO] [stdout] 23ac10e31eda0d9034d7331b38f81bc24c30571202d9ac11ddcccaaef478c638
[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] 933c84aa5fec210ff5aeda3ee6079a5f27dd1b39b08a299bae6a8c72e19b5cd1
[INFO] running `Command { std: "docker" "start" "-a" "933c84aa5fec210ff5aeda3ee6079a5f27dd1b39b08a299bae6a8c72e19b5cd1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking aho-corasick v1.1.4
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling syn v2.0.109
[INFO] [stderr]     Checking bstr v1.12.1
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]     Checking symphonia-core v0.5.5
[INFO] [stderr]     Checking backtrace v0.3.76
[INFO] [stderr]     Checking alsa-sys v0.3.1
[INFO] [stderr]    Compiling rustls v0.21.12
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking rustls-webpki v0.101.7
[INFO] [stderr]     Checking sct v0.7.1
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking alsa v0.9.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking regex-automata v0.4.13
[INFO] [stderr]     Checking symphonia-metadata v0.5.5
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking symphonia-bundle-mp3 v0.5.5
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking cpal v0.15.3
[INFO] [stderr]     Checking exitfailure v0.5.1
[INFO] [stderr]     Checking minreq v2.14.1
[INFO] [stderr]     Checking symphonia v0.5.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]     Checking globset v0.4.18
[INFO] [stderr]     Checking regex v1.12.2
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking ignore v0.4.25
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking clap-verbosity-flag v0.2.0
[INFO] [stderr]     Checking rodio v0.19.0
[INFO] [stderr]     Checking globwalk v0.3.1
[INFO] [stderr]     Checking quicli v0.4.0
[INFO] [stderr]     Checking gtts_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> cli/main.rs:7:3
[INFO] [stdout]   |
[INFO] [stdout] 7 |   text: 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<String, Infallible>
[INFO] [stdout]  --> cli/main.rs:7:3
[INFO] [stdout]   |
[INFO] [stdout] 7 |   text: 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] error: could not compile `gtts_rs` (bin "tts") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `gtts_rs` (bin "tts" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "933c84aa5fec210ff5aeda3ee6079a5f27dd1b39b08a299bae6a8c72e19b5cd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "933c84aa5fec210ff5aeda3ee6079a5f27dd1b39b08a299bae6a8c72e19b5cd1", kill_on_drop: false }`
[INFO] [stdout] 933c84aa5fec210ff5aeda3ee6079a5f27dd1b39b08a299bae6a8c72e19b5cd1