[INFO] fetching crate mintyml-cli 0.1.19...
[INFO] testing mintyml-cli-0.1.19 against 1.91.0 for beta-1.92-2
[INFO] extracting crate mintyml-cli 0.1.19 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate mintyml-cli 0.1.19
[INFO] finished tweaking crates.io crate mintyml-cli 0.1.19
[INFO] tweaked toml for crates.io crate mintyml-cli 0.1.19 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mintyml-cli 0.1.19 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mintyml-cli 0.1.19 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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded anstyle-query v1.0.3
[INFO] [stderr]   Downloaded gramma v0.2.23
[INFO] [stderr]   Downloaded proc-macro2 v1.0.83
[INFO] [stderr]   Downloaded mintyml v0.1.19
[INFO] [stderr]   Downloaded syn v2.0.65
[INFO] [stderr]   Downloaded serde v1.0.202
[INFO] [stderr]   Downloaded serde_derive v1.0.202
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd7769777fb4f92e3b13147461376eee1ba8c375d0d22fe2514ad5fdb3c7dcf1
[INFO] running `Command { std: "docker" "start" "-a" "fd7769777fb4f92e3b13147461376eee1ba8c375d0d22fe2514ad5fdb3c7dcf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd7769777fb4f92e3b13147461376eee1ba8c375d0d22fe2514ad5fdb3c7dcf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd7769777fb4f92e3b13147461376eee1ba8c375d0d22fe2514ad5fdb3c7dcf1", kill_on_drop: false }`
[INFO] [stdout] fd7769777fb4f92e3b13147461376eee1ba8c375d0d22fe2514ad5fdb3c7dcf1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d827daefd30cbda97a8e555ea50772d455fb002d456537e28fe14b06f4bc5cd
[INFO] running `Command { std: "docker" "start" "-a" "1d827daefd30cbda97a8e555ea50772d455fb002d456537e28fe14b06f4bc5cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.83
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling rustix v0.38.34
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling regex-syntax v0.8.3
[INFO] [stderr]    Compiling bitflags v2.5.0
[INFO] [stderr]    Compiling anstyle-query v1.0.3
[INFO] [stderr]    Compiling either v1.12.0
[INFO] [stderr]    Compiling anstyle-parse v0.2.4
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.0
[INFO] [stderr]    Compiling serde v1.0.202
[INFO] [stderr]    Compiling anstyle v1.0.7
[INFO] [stderr]    Compiling colorchoice v1.0.1
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling clap_lex v0.7.0
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]    Compiling serde_json v1.0.117
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling anstream v0.6.14
[INFO] [stderr]    Compiling syn v2.0.65
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling terminal_size v0.3.0
[INFO] [stderr]    Compiling regex-automata v0.4.6
[INFO] [stderr]    Compiling clap_builder v4.5.2
[INFO] [stderr]    Compiling serde_derive v1.0.202
[INFO] [stderr]    Compiling clap_derive v4.5.4
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling regex v1.10.4
[INFO] [stderr]    Compiling gramma v0.2.23
[INFO] [stderr]    Compiling clap v4.5.4
[INFO] [stderr]    Compiling mintyml v0.1.19
[INFO] [stderr]    Compiling mintyml-cli v0.1.19 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `OptionExt` is never used
[INFO] [stdout]   --> src/utils.rs:28:11
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub trait OptionExt: Into<Option<Self::Val>> + From<Option<Self::Val>> {
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/utils.rs:40:8
[INFO] [stdout]     |
[INFO] [stdout]  39 | pub trait UtilExt: Sized {
[INFO] [stdout]     |           ------- methods in this trait
[INFO] [stdout]  40 |     fn also(mut self, f: impl FnOnce(&mut Self)) -> Self {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  45 |     fn also_with<T>(mut self, f: impl FnOnce(&mut Self) -> T) -> (Self, T) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  50 |     fn also_with_ok<T, E>(
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  57 |     fn also_with_some<T>(mut self, f: impl FnOnce(&mut Self) -> Option<T>) -> Option<(Self, T)> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  61 |     fn also_ok<E>(mut self, f: impl FnOnce(&mut Self) -> Result<(), E>) -> Result<Self, E> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  65 |     fn pipe<R>(self, f: impl FnOnce(Self) -> R) -> R {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  73 |     fn err<T>(self) -> Result<T, Self> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout]  81 |     fn pipe_ok<T, E>(self, f: impl FnOnce(Self) -> Result<T, E>) -> Result<T, E> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  85 |     fn pipe_some<T>(self, f: impl FnOnce(Self) -> Option<T>) -> Option<T> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  89 |     fn into_<T>(self) -> T
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  96 |     fn try_into_<T>(self) -> Result<T, Self::Error>
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 103 |     fn drop_ok(self) -> Result<(), Self::ErrVal>
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 118 |     fn try_map<Out, E>(self, f: impl FnOnce(Self::Val) -> Result<Out, E>) -> Result<Option<Out>, E>
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 125 |     fn try_and_then<Out, E>(
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `output_name` is never used
[INFO] [stdout]    --> src/convert.rs:506:15
[INFO] [stdout]     |
[INFO] [stdout] 506 | pub(crate) fn output_name(
[INFO] [stdout]     |               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_file` and `is_dir` are never used
[INFO] [stdout]   --> src/io_helper.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub(crate) trait IoHelper: Clone + Send + Sync {
[INFO] [stdout]    |                  -------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 56 |     fn is_file(&self, path: &Path) -> Result<bool> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 62 |     fn is_dir(&self, path: &Path) -> Result<bool> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/convert.rs:444:29
[INFO] [stdout]     |
[INFO] [stdout] 444 |     pub(crate) fn as_config(&self) -> mintyml::OutputConfig {
[INFO] [stdout]     |                             ^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 444 |     pub(crate) fn as_config(&self) -> mintyml::OutputConfig<'_> {
[INFO] [stdout]     |                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.37s
[INFO] running `Command { std: "docker" "inspect" "1d827daefd30cbda97a8e555ea50772d455fb002d456537e28fe14b06f4bc5cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d827daefd30cbda97a8e555ea50772d455fb002d456537e28fe14b06f4bc5cd", kill_on_drop: false }`
[INFO] [stdout] 1d827daefd30cbda97a8e555ea50772d455fb002d456537e28fe14b06f4bc5cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1559b498a620d541c64a6cfbbaa20655b92f12fc82fecf2cc7ea4a39fe22e43
[INFO] running `Command { std: "docker" "start" "-a" "a1559b498a620d541c64a6cfbbaa20655b92f12fc82fecf2cc7ea4a39fe22e43", kill_on_drop: false }`
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling mintyml-cli v0.1.19 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `any`
[INFO] [stdout]  --> src/tests.rs:2:30
[INFO] [stdout]   |
[INFO] [stdout] 2 |     io_helper::test_helper::{any, contains},
[INFO] [stdout]   |                              ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `OptionExt` is never used
[INFO] [stdout]   --> src/utils.rs:28:11
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub trait OptionExt: Into<Option<Self::Val>> + From<Option<Self::Val>> {
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/utils.rs:40:8
[INFO] [stdout]     |
[INFO] [stdout]  39 | pub trait UtilExt: Sized {
[INFO] [stdout]     |           ------- methods in this trait
[INFO] [stdout]  40 |     fn also(mut self, f: impl FnOnce(&mut Self)) -> Self {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  45 |     fn also_with<T>(mut self, f: impl FnOnce(&mut Self) -> T) -> (Self, T) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  50 |     fn also_with_ok<T, E>(
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  57 |     fn also_with_some<T>(mut self, f: impl FnOnce(&mut Self) -> Option<T>) -> Option<(Self, T)> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  61 |     fn also_ok<E>(mut self, f: impl FnOnce(&mut Self) -> Result<(), E>) -> Result<Self, E> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  65 |     fn pipe<R>(self, f: impl FnOnce(Self) -> R) -> R {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  73 |     fn err<T>(self) -> Result<T, Self> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout]  81 |     fn pipe_ok<T, E>(self, f: impl FnOnce(Self) -> Result<T, E>) -> Result<T, E> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  85 |     fn pipe_some<T>(self, f: impl FnOnce(Self) -> Option<T>) -> Option<T> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  89 |     fn into_<T>(self) -> T
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  96 |     fn try_into_<T>(self) -> Result<T, Self::Error>
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 103 |     fn drop_ok(self) -> Result<(), Self::ErrVal>
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 118 |     fn try_map<Out, E>(self, f: impl FnOnce(Self::Val) -> Result<Out, E>) -> Result<Option<Out>, E>
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 125 |     fn try_and_then<Out, E>(
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `output_name` is never used
[INFO] [stdout]    --> src/convert.rs:506:15
[INFO] [stdout]     |
[INFO] [stdout] 506 | pub(crate) fn output_name(
[INFO] [stdout]     |               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_file` and `is_dir` are never used
[INFO] [stdout]   --> src/io_helper.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub(crate) trait IoHelper: Clone + Send + Sync {
[INFO] [stdout]    |                  -------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 56 |     fn is_file(&self, path: &Path) -> Result<bool> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 62 |     fn is_dir(&self, path: &Path) -> Result<bool> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `any` is never used
[INFO] [stdout]    --> src/io_helper.rs:458:12
[INFO] [stdout]     |
[INFO] [stdout] 458 |     pub fn any() -> Option<Box<dyn FnMut(&Path, &[u8]) -> Result>> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/convert.rs:444:29
[INFO] [stdout]     |
[INFO] [stdout] 444 |     pub(crate) fn as_config(&self) -> mintyml::OutputConfig {
[INFO] [stdout]     |                             ^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 444 |     pub(crate) fn as_config(&self) -> mintyml::OutputConfig<'_> {
[INFO] [stdout]     |                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/io_helper.rs:176:32
[INFO] [stdout]     |
[INFO] [stdout] 176 |     fn lock<T: ?Sized>(target: &Mutex<T>) -> MutexGuard<T> {
[INFO] [stdout]     |                                ^^^^^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                                |
[INFO] [stdout]     |                                the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 176 |     fn lock<T: ?Sized>(target: &Mutex<T>) -> MutexGuard<'_, T> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/io_helper.rs:582:17
[INFO] [stdout]     |
[INFO] [stdout] 582 |         fn lock(&mut self) -> (MutexGuard<Vec<u8>>, &mut usize) {
[INFO] [stdout]     |                 ^^^^^^^^^      ^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^ the same lifetime is elided here
[INFO] [stdout]     |                 |              |
[INFO] [stdout]     |                 |              the same lifetime is hidden here
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 582 |         fn lock(&mut self) -> (MutexGuard<'_, Vec<u8>>, &mut usize) {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.71s
[INFO] running `Command { std: "docker" "inspect" "a1559b498a620d541c64a6cfbbaa20655b92f12fc82fecf2cc7ea4a39fe22e43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1559b498a620d541c64a6cfbbaa20655b92f12fc82fecf2cc7ea4a39fe22e43", kill_on_drop: false }`
[INFO] [stdout] a1559b498a620d541c64a6cfbbaa20655b92f12fc82fecf2cc7ea4a39fe22e43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3cb5e7951d8839ed7e9c1e214313da4e9c6554a9f8b001dd9e3554acc9fd8497
[INFO] running `Command { std: "docker" "start" "-a" "3cb5e7951d8839ed7e9c1e214313da4e9c6554a9f8b001dd9e3554acc9fd8497", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `any`
[INFO] [stderr]  --> src/tests.rs:2:30
[INFO] [stderr]   |
[INFO] [stderr] 2 |     io_helper::test_helper::{any, contains},
[INFO] [stderr]   |                              ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait `OptionExt` is never used
[INFO] [stderr]   --> src/utils.rs:28:11
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub trait OptionExt: Into<Option<Self::Val>> + From<Option<Self::Val>> {
[INFO] [stderr]    |           ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: multiple methods are never used
[INFO] [stderr]    --> src/utils.rs:40:8
[INFO] [stderr]     |
[INFO] [stderr]  39 | pub trait UtilExt: Sized {
[INFO] [stderr]     |           ------- methods in this trait
[INFO] [stderr]  40 |     fn also(mut self, f: impl FnOnce(&mut Self)) -> Self {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] ...
[INFO] [stderr]  45 |     fn also_with<T>(mut self, f: impl FnOnce(&mut Self) -> T) -> (Self, T) {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr]  50 |     fn also_with_ok<T, E>(
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr]  57 |     fn also_with_some<T>(mut self, f: impl FnOnce(&mut Self) -> Option<T>) -> Option<(Self, T)> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr]  61 |     fn also_ok<E>(mut self, f: impl FnOnce(&mut Self) -> Result<(), E>) -> Result<Self, E> {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr]  65 |     fn pipe<R>(self, f: impl FnOnce(Self) -> R) -> R {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] ...
[INFO] [stderr]  73 |     fn err<T>(self) -> Result<T, Self> {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] ...
[INFO] [stderr]  81 |     fn pipe_ok<T, E>(self, f: impl FnOnce(Self) -> Result<T, E>) -> Result<T, E> {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr]  85 |     fn pipe_some<T>(self, f: impl FnOnce(Self) -> Option<T>) -> Option<T> {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr]  89 |     fn into_<T>(self) -> T
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] ...
[INFO] [stderr]  96 |     fn try_into_<T>(self) -> Result<T, Self::Error>
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 103 |     fn drop_ok(self) -> Result<(), Self::ErrVal>
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 118 |     fn try_map<Out, E>(self, f: impl FnOnce(Self::Val) -> Result<Out, E>) -> Result<Option<Out>, E>
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 125 |     fn try_and_then<Out, E>(
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `output_name` is never used
[INFO] [stderr]    --> src/convert.rs:506:15
[INFO] [stderr]     |
[INFO] [stderr] 506 | pub(crate) fn output_name(
[INFO] [stderr]     |               ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `is_file` and `is_dir` are never used
[INFO] [stderr]   --> src/io_helper.rs:56:8
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub(crate) trait IoHelper: Clone + Send + Sync {
[INFO] [stderr]    |                  -------- methods in this trait
[INFO] [stderr] ...
[INFO] [stderr] 56 |     fn is_file(&self, path: &Path) -> Result<bool> {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 62 |     fn is_dir(&self, path: &Path) -> Result<bool> {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `any` is never used
[INFO] [stderr]    --> src/io_helper.rs:458:12
[INFO] [stderr]     |
[INFO] [stderr] 458 |     pub fn any() -> Option<Box<dyn FnMut(&Path, &[u8]) -> Result>> {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/convert.rs:444:29
[INFO] [stderr]     |
[INFO] [stderr] 444 |     pub(crate) fn as_config(&self) -> mintyml::OutputConfig {
[INFO] [stderr]     |                             ^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 444 |     pub(crate) fn as_config(&self) -> mintyml::OutputConfig<'_> {
[INFO] [stderr]     |                                                            ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/io_helper.rs:176:32
[INFO] [stderr]     |
[INFO] [stderr] 176 |     fn lock<T: ?Sized>(target: &Mutex<T>) -> MutexGuard<T> {
[INFO] [stderr]     |                                ^^^^^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                                |
[INFO] [stderr]     |                                the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 176 |     fn lock<T: ?Sized>(target: &Mutex<T>) -> MutexGuard<'_, T> {
[INFO] [stderr]     |                                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/io_helper.rs:582:17
[INFO] [stderr]     |
[INFO] [stderr] 582 |         fn lock(&mut self) -> (MutexGuard<Vec<u8>>, &mut usize) {
[INFO] [stderr]     |                 ^^^^^^^^^      ^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^ the same lifetime is elided here
[INFO] [stderr]     |                 |              |
[INFO] [stderr]     |                 |              the same lifetime is hidden here
[INFO] [stderr]     |                 the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 582 |         fn lock(&mut self) -> (MutexGuard<'_, Vec<u8>>, &mut usize) {
[INFO] [stderr]     |                                           +++
[INFO] [stderr] 
[INFO] [stderr] warning: `mintyml-cli` (bin "mintyml-cli" test) generated 9 warnings (run `cargo fix --bin "mintyml-cli" --tests` to apply 4 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/mintyml_cli-3113bf1e581c196e)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test args::cli_valid ... ok
[INFO] [stdout] test tests::basic_test ... ok
[INFO] [stdout] test tests::convert_explicit_file_explicit_dest ... ok
[INFO] [stdout] test tests::convert_explicit_file_implicit_dest ... ok
[INFO] [stdout] test tests::convert_explicit_file_explicit_absolute_dest ... ok
[INFO] [stdout] test tests::complete_page_implicit ... ok
[INFO] [stdout] test tests::convert_dir_implicit_dest_no_recurse ... ok
[INFO] [stdout] test tests::convert_explicit_files_implicit_dest ... ok
[INFO] [stdout] test tests::convert_explicit_files_explicit_absolute_dest ... ok
[INFO] [stdout] test tests::convert_explicit_files_explicit_dest ... ok
[INFO] [stdout] test tests::complete_page_explicit ... ok
[INFO] [stdout] test tests::convert_dir_implicit_dest_recurse ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3cb5e7951d8839ed7e9c1e214313da4e9c6554a9f8b001dd9e3554acc9fd8497", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cb5e7951d8839ed7e9c1e214313da4e9c6554a9f8b001dd9e3554acc9fd8497", kill_on_drop: false }`
[INFO] [stdout] 3cb5e7951d8839ed7e9c1e214313da4e9c6554a9f8b001dd9e3554acc9fd8497
