[INFO] cloning repository https://github.com/bihellzin/epub-to-mp3
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bihellzin/epub-to-mp3" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbihellzin%2Fepub-to-mp3", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbihellzin%2Fepub-to-mp3'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9a65f4282db1801b50a9c498fb9696ad3e6d91f2
[INFO] checking bihellzin/epub-to-mp3 against master#80b898258da78fdd1262438126aa0cf90e395f0c for pr-149195-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbihellzin%2Fepub-to-mp3" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/bihellzin/epub-to-mp3
[INFO] finished tweaking git repo https://github.com/bihellzin/epub-to-mp3
[INFO] tweaked toml for git repo https://github.com/bihellzin/epub-to-mp3 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/bihellzin/epub-to-mp3 on toolchain 80b898258da78fdd1262438126aa0cf90e395f0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80b898258da78fdd1262438126aa0cf90e395f0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/bihellzin/epub-to-mp3 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" "+80b898258da78fdd1262438126aa0cf90e395f0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded speech-dispatcher v0.16.0
[INFO] [stderr]   Downloaded oxilangtag v0.1.3
[INFO] [stderr]   Downloaded toml_datetime v0.6.2
[INFO] [stderr]   Downloaded speech-dispatcher-sys v0.7.0
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[INFO] [stderr]   Downloaded istring v0.3.3
[INFO] [stderr]   Downloaded fax_derive v0.1.0
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[INFO] [stderr]   Downloaded datasize_derive v0.2.14
[INFO] [stderr]   Downloaded bitflags v2.3.2
[INFO] [stderr]   Downloaded toml_edit v0.19.10
[INFO] [stderr]   Downloaded datasize v0.2.14
[INFO] [stderr]   Downloaded zip v0.5.13
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[INFO] [stderr]   Downloaded pdf v0.8.1
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[INFO] [stderr]   Downloaded tts v0.25.5
[INFO] [stderr]   Downloaded bindgen v0.66.1
[INFO] [stderr]   Downloaded prettyplease v0.2.9
[INFO] [stderr]   Downloaded snafu-derive v0.7.4
[INFO] [stderr]   Downloaded epub v2.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+80b898258da78fdd1262438126aa0cf90e395f0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] efc4482e8571a8bcc7393b55f6a52aa5a36ab6301a13de3f773b957338e88044
[INFO] running `Command { std: "docker" "start" "-a" "efc4482e8571a8bcc7393b55f6a52aa5a36ab6301a13de3f773b957338e88044", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "efc4482e8571a8bcc7393b55f6a52aa5a36ab6301a13de3f773b957338e88044", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efc4482e8571a8bcc7393b55f6a52aa5a36ab6301a13de3f773b957338e88044", kill_on_drop: false }`
[INFO] [stdout] efc4482e8571a8bcc7393b55f6a52aa5a36ab6301a13de3f773b957338e88044
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "-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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+80b898258da78fdd1262438126aa0cf90e395f0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f76fda236739fd4969a40d02aa8a25db9b6a1220d45face4794d070b19d5a23e
[INFO] running `Command { std: "docker" "start" "-a" "f76fda236739fd4969a40d02aa8a25db9b6a1220d45face4794d070b19d5a23e", kill_on_drop: false }`
[INFO] [stderr]    Compiling prettyplease v0.2.9
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling bindgen v0.66.1
[INFO] [stderr]    Compiling regex-syntax v0.7.2
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling clang-sys v1.6.1
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling bitflags v2.3.2
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]     Checking block-padding v0.3.3
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]    Compiling datasize_derive v0.2.14
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]    Compiling snafu-derive v0.7.4
[INFO] [stderr]     Checking inout v0.1.3
[INFO] [stderr]     Checking flate2 v1.0.26
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]    Compiling dyn-clonable-impl v0.9.0
[INFO] [stderr]    Compiling fax_derive v0.1.0
[INFO] [stderr]    Compiling which v4.4.0
[INFO] [stderr]     Checking cipher v0.4.4
[INFO] [stderr]    Compiling tts v0.25.5
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]     Checking dyn-clone v1.0.11
[INFO] [stderr]     Checking unicode-bidi v0.3.13
[INFO] [stderr]     Checking regex v1.8.4
[INFO] [stderr]     Checking aes v0.8.3
[INFO] [stderr]     Checking dyn-clonable v0.9.0
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking cbc v0.1.2
[INFO] [stderr]     Checking deflate v1.0.0
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking globalcache v0.2.0
[INFO] [stderr]     Checking sha2 v0.10.7
[INFO] [stderr]     Checking stringprep v0.1.2
[INFO] [stderr]     Checking datasize v0.2.14
[INFO] [stderr]    Compiling pdf_derive v0.1.22
[INFO] [stderr]     Checking fax v0.2.0
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]     Checking istring v0.3.3
[INFO] [stderr]     Checking xml-rs v0.8.14
[INFO] [stderr]     Checking weezl v0.1.7
[INFO] [stderr]     Checking jpeg-decoder v0.3.0
[INFO] [stderr]     Checking oxilangtag v0.1.3
[INFO] [stderr]     Checking zip v0.5.13
[INFO] [stderr]     Checking snafu v0.7.4
[INFO] [stderr]     Checking pdf v0.8.1
[INFO] [stderr]     Checking epub v2.0.0
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling speech-dispatcher-sys v0.7.0
[INFO] [stderr]     Checking speech-dispatcher v0.16.0
[INFO] [stderr]     Checking converter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut tts = Tts::default();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut tts = Tts::default();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     tts.expect("").speak("hello world".to_string(), false);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let _ = tts.expect("").speak("hello world".to_string(), false);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     tts.expect("").speak("hello world".to_string(), false);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let _ = tts.expect("").speak("hello world".to_string(), false);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.92s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: pdf v0.8.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "f76fda236739fd4969a40d02aa8a25db9b6a1220d45face4794d070b19d5a23e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f76fda236739fd4969a40d02aa8a25db9b6a1220d45face4794d070b19d5a23e", kill_on_drop: false }`
[INFO] [stdout] f76fda236739fd4969a40d02aa8a25db9b6a1220d45face4794d070b19d5a23e