[INFO] fetching crate ptree2 1.0.0...
[INFO] testing ptree2-1.0.0 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate ptree2 1.0.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate ptree2 1.0.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate ptree2 1.0.0
[INFO] tweaked toml for crates.io crate ptree2 1.0.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ptree2 1.0.0 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ptree2 1.0.0 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "73355654e86b94bff3a30adf4c662edae5e825a914206476dddfc6a3bf66975f" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73355654e86b94bff3a30adf4c662edae5e825a914206476dddfc6a3bf66975f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "73355654e86b94bff3a30adf4c662edae5e825a914206476dddfc6a3bf66975f" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
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[INFO] [stderr]    Compiling ptree2 v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl u32>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]   --> src/print_config.rs:70:25
[INFO] [stdout]    |
[INFO] [stdout] 70 |             depth: u32::max_value(),
[INFO] [stdout]    |                         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `config::Config::merge`: please use 'ConfigBuilder' instead
[INFO] [stdout]    --> src/print_config.rs:108:22
[INFO] [stdout]     |
[INFO] [stdout] 108 |             settings.merge(config::File::with_name(&p)).ok()?;
[INFO] [stdout]     |                      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `config::Config::merge`: please use 'ConfigBuilder' instead
[INFO] [stdout]    --> src/print_config.rs:111:22
[INFO] [stdout]     |
[INFO] [stdout] 111 |             settings.merge(config::File::with_name(f.to_str()?)).ok()?;
[INFO] [stdout]     |                      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `config::Config::merge`: please use 'ConfigBuilder' instead
[INFO] [stdout]    --> src/print_config.rs:115:14
[INFO] [stdout]     |
[INFO] [stdout] 115 |             .merge(config::Environment::with_prefix("PTREE").separator("_"))
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/item.rs:40:17
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn children(&self) -> Cow<[Self::Child]>;
[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] 40 |     fn children(&self) -> Cow<'_, [Self::Child]>;
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/item.rs:69:17
[INFO] [stdout]    |
[INFO] [stdout] 69 |     fn children(&self) -> Cow<[Self::Child]> {
[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] 69 |     fn children(&self) -> Cow<'_, [Self::Child]> {
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/graph.rs:31:17
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn children(&self) -> Cow<[Self::Child]> {
[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] 31 |     fn children(&self) -> Cow<'_, [Self::Child]> {
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/value.rs:37:17
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn children(&self) -> Cow<[Self::Child]> {
[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] 37 |     fn children(&self) -> Cow<'_, [Self::Child]> {
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/value.rs:73:17
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn children(&self) -> Cow<[Self::Child]> {
[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] 73 |     fn children(&self) -> Cow<'_, [Self::Child]> {
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 1m 16s
[INFO] running `Command { std: "docker" "inspect" "73355654e86b94bff3a30adf4c662edae5e825a914206476dddfc6a3bf66975f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "73355654e86b94bff3a30adf4c662edae5e825a914206476dddfc6a3bf66975f" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
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[INFO] [stderr]    Compiling config v0.14.0
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[INFO] [stderr]    Compiling serde_any v0.5.0
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[INFO] [stderr]    Compiling ptree2 v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl u32>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]   --> src/print_config.rs:70:25
[INFO] [stdout]    |
[INFO] [stdout] 70 |             depth: u32::max_value(),
[INFO] [stdout]    |                         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `config::Config::merge`: please use 'ConfigBuilder' instead
[INFO] [stdout]    --> src/print_config.rs:108:22
[INFO] [stdout]     |
[INFO] [stdout] 108 |             settings.merge(config::File::with_name(&p)).ok()?;
[INFO] [stdout]     |                      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `config::Config::merge`: please use 'ConfigBuilder' instead
[INFO] [stdout]    --> src/print_config.rs:111:22
[INFO] [stdout]     |
[INFO] [stdout] 111 |             settings.merge(config::File::with_name(f.to_str()?)).ok()?;
[INFO] [stdout]     |                      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `config::Config::merge`: please use 'ConfigBuilder' instead
[INFO] [stdout]    --> src/print_config.rs:115:14
[INFO] [stdout]     |
[INFO] [stdout] 115 |             .merge(config::Environment::with_prefix("PTREE").separator("_"))
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/item.rs:40:17
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn children(&self) -> Cow<[Self::Child]>;
[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] 40 |     fn children(&self) -> Cow<'_, [Self::Child]>;
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/item.rs:69:17
[INFO] [stdout]    |
[INFO] [stdout] 69 |     fn children(&self) -> Cow<[Self::Child]> {
[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] 69 |     fn children(&self) -> Cow<'_, [Self::Child]> {
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/graph.rs:31:17
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn children(&self) -> Cow<[Self::Child]> {
[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] 31 |     fn children(&self) -> Cow<'_, [Self::Child]> {
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/value.rs:37:17
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn children(&self) -> Cow<[Self::Child]> {
[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] 37 |     fn children(&self) -> Cow<'_, [Self::Child]> {
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/value.rs:73:17
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn children(&self) -> Cow<[Self::Child]> {
[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] 73 |     fn children(&self) -> Cow<'_, [Self::Child]> {
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> examples/dirtree.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn children(&self) -> Cow<[Self::Child]> {
[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] 24 |     fn children(&self) -> Cow<'_, [Self::Child]> {
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl u32>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]   --> src/print_config.rs:70:25
[INFO] [stdout]    |
[INFO] [stdout] 70 |             depth: u32::max_value(),
[INFO] [stdout]    |                         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `config::Config::merge`: please use 'ConfigBuilder' instead
[INFO] [stdout]    --> src/print_config.rs:108:22
[INFO] [stdout]     |
[INFO] [stdout] 108 |             settings.merge(config::File::with_name(&p)).ok()?;
[INFO] [stdout]     |                      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `config::Config::merge`: please use 'ConfigBuilder' instead
[INFO] [stdout]    --> src/print_config.rs:111:22
[INFO] [stdout]     |
[INFO] [stdout] 111 |             settings.merge(config::File::with_name(f.to_str()?)).ok()?;
[INFO] [stdout]     |                      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `config::Config::merge`: please use 'ConfigBuilder' instead
[INFO] [stdout]    --> src/print_config.rs:115:14
[INFO] [stdout]     |
[INFO] [stdout] 115 |             .merge(config::Environment::with_prefix("PTREE").separator("_"))
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/item.rs:40:17
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn children(&self) -> Cow<[Self::Child]>;
[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] 40 |     fn children(&self) -> Cow<'_, [Self::Child]>;
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/item.rs:69:17
[INFO] [stdout]    |
[INFO] [stdout] 69 |     fn children(&self) -> Cow<[Self::Child]> {
[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] 69 |     fn children(&self) -> Cow<'_, [Self::Child]> {
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/graph.rs:31:17
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn children(&self) -> Cow<[Self::Child]> {
[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] 31 |     fn children(&self) -> Cow<'_, [Self::Child]> {
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/value.rs:37:17
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn children(&self) -> Cow<[Self::Child]> {
[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] 37 |     fn children(&self) -> Cow<'_, [Self::Child]> {
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/value.rs:73:17
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn children(&self) -> Cow<[Self::Child]> {
[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] 73 |     fn children(&self) -> Cow<'_, [Self::Child]> {
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 2m 51s
[INFO] running `Command { std: "docker" "inspect" "73355654e86b94bff3a30adf4c662edae5e825a914206476dddfc6a3bf66975f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "73355654e86b94bff3a30adf4c662edae5e825a914206476dddfc6a3bf66975f" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated associated function `core::num::<impl u32>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stderr]   --> src/print_config.rs:70:25
[INFO] [stderr]    |
[INFO] [stderr] 70 |             depth: u32::max_value(),
[INFO] [stderr]    |                         ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `config::Config::merge`: please use 'ConfigBuilder' instead
[INFO] [stderr]    --> src/print_config.rs:108:22
[INFO] [stderr]     |
[INFO] [stderr] 108 |             settings.merge(config::File::with_name(&p)).ok()?;
[INFO] [stderr]     |                      ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `config::Config::merge`: please use 'ConfigBuilder' instead
[INFO] [stderr]    --> src/print_config.rs:111:22
[INFO] [stderr]     |
[INFO] [stderr] 111 |             settings.merge(config::File::with_name(f.to_str()?)).ok()?;
[INFO] [stderr]     |                      ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `config::Config::merge`: please use 'ConfigBuilder' instead
[INFO] [stderr]    --> src/print_config.rs:115:14
[INFO] [stderr]     |
[INFO] [stderr] 115 |             .merge(config::Environment::with_prefix("PTREE").separator("_"))
[INFO] [stderr]     |              ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/item.rs:40:17
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn children(&self) -> Cow<[Self::Child]>;
[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] 40 |     fn children(&self) -> Cow<'_, [Self::Child]>;
[INFO] [stderr]    |                               +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/item.rs:69:17
[INFO] [stderr]    |
[INFO] [stderr] 69 |     fn children(&self) -> Cow<[Self::Child]> {
[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] 69 |     fn children(&self) -> Cow<'_, [Self::Child]> {
[INFO] [stderr]    |                               +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/graph.rs:31:17
[INFO] [stderr]    |
[INFO] [stderr] 31 |     fn children(&self) -> Cow<[Self::Child]> {
[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] 31 |     fn children(&self) -> Cow<'_, [Self::Child]> {
[INFO] [stderr]    |                               +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/value.rs:37:17
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn children(&self) -> Cow<[Self::Child]> {
[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] 37 |     fn children(&self) -> Cow<'_, [Self::Child]> {
[INFO] [stderr]    |                               +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/value.rs:73:17
[INFO] [stderr]    |
[INFO] [stderr] 73 |     fn children(&self) -> Cow<[Self::Child]> {
[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] 73 |     fn children(&self) -> Cow<'_, [Self::Child]> {
[INFO] [stderr]    |                               +++
[INFO] [stderr] 
[INFO] [stderr] warning: `ptree2` (lib) generated 9 warnings (run `cargo fix --lib -p ptree2` to apply 5 suggestions)
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> examples/dirtree.rs:24:17
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn children(&self) -> Cow<[Self::Child]> {
[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] 24 |     fn children(&self) -> Cow<'_, [Self::Child]> {
[INFO] [stderr]    |                               +++
[INFO] [stderr] 
[INFO] [stderr] warning: `ptree2` (lib test) generated 9 warnings (9 duplicates)
[INFO] [stderr] warning: `ptree2` (example "dirtree") generated 1 warning (run `cargo fix --example "dirtree" -p ptree2` to apply 1 suggestion)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.25s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/deps/ptree2-ab4a2984ac6c6c34)
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test graph::tests::small_graph_output ... ok
[INFO] [stdout] test builder::tests::many_children_flat ... ok
[INFO] [stdout] test output::tests::indent_from_characters_ascii ... ok
[INFO] [stdout] test output::tests::indent_from_characters_pad ... ok
[INFO] [stdout] test item::tests::small_item_output ... ok
[INFO] [stdout] test output::tests::indent_from_characters ... ok
[INFO] [stdout] test output::tests::indent_from_config ... ok
[INFO] [stdout] test builder::tests::empty ... ok
[INFO] [stdout] test builder::tests::many_children_nested ... ok
[INFO] [stdout] test style::tests::color_from_toml ... ok
[INFO] [stdout] test print_config::tests::load_env ... FAILED
[INFO] [stdout] test builder::tests::single_child ... ok
[INFO] [stdout] test print_config::tests::load_yaml_config_file ... FAILED
[INFO] [stdout] test style::tests::color_from_yaml ... ok
[INFO] [stdout] test print_config::tests::load_toml_config_file ... FAILED
[INFO] [stdout] test style::tests::style_from_toml ... ok
[INFO] [stdout] test value::tests::toml_value_output ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- print_config::tests::load_env stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'print_config::tests::load_env' (2512) panicked at src/print_config.rs:485:44:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x57282ff68dd1 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x57282ff8132a - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    2:     0x57282ff6d52c - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x57282ff44506 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x57282ff60e99 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]    5:     0x57282fdfea60 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]    6:     0x57282ff61052 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x57282ff445b2 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x57282ff3cf39 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x57282ff453cd - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]   10:     0x57282ff81a5c - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]   11:     0x57282ff81832 - core[df12db4294e9bfd3]::result::unwrap_failed
[INFO] [stdout]   12:     0x57282fde4cad - ptree2[ba3439edf6f5c0d4]::print_config::tests::load_env
[INFO] [stdout]   13:     0x57282fdef919 - <ptree2[ba3439edf6f5c0d4]::print_config::tests::load_env::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   14:     0x57282fdf1d4b - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]   15:     0x57282fdff3b5 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]   16:     0x57282fdf8c74 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stdout]   17:     0x57282fe02512 - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   18:     0x57282ff68339 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   19:     0x79811f43adfa - <unknown>
[INFO] [stdout]   20:     0x79811f4ce3d4 - clone
[INFO] [stdout]   21:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- print_config::tests::load_yaml_config_file stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'print_config::tests::load_yaml_config_file' (2514) panicked at src/print_config.rs:440:35:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: PoisonError { .. }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x57282ff68dd1 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x57282ff8132a - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    2:     0x57282ff6d52c - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x57282ff44506 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x57282ff60e99 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]    5:     0x57282fdfea60 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]    6:     0x57282ff61052 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x57282ff445b2 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x57282ff3cf39 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x57282ff453cd - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]   10:     0x57282ff81a5c - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]   11:     0x57282ff81832 - core[df12db4294e9bfd3]::result::unwrap_failed
[INFO] [stdout]   12:     0x57282fde44a0 - ptree2[ba3439edf6f5c0d4]::print_config::tests::load_yaml_config_file
[INFO] [stdout]   13:     0x57282fdef8f9 - <ptree2[ba3439edf6f5c0d4]::print_config::tests::load_yaml_config_file::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   14:     0x57282fdf1d4b - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]   15:     0x57282fdff3b5 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]   16:     0x57282fdf8c74 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stdout]   17:     0x57282fe02512 - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   18:     0x57282ff68339 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   19:     0x79811f43adfa - <unknown>
[INFO] [stdout]   20:     0x79811f4ce3d4 - clone
[INFO] [stdout]   21:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- print_config::tests::load_toml_config_file stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'print_config::tests::load_toml_config_file' (2513) panicked at src/print_config.rs:458:35:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: PoisonError { .. }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x57282ff68dd1 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x57282ff8132a - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    2:     0x57282ff6d52c - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x57282ff44506 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x57282ff60e99 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]    5:     0x57282fdfea60 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]    6:     0x57282ff61052 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x57282ff445b2 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x57282ff3cf39 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x57282ff453cd - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]   10:     0x57282ff81a5c - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]   11:     0x57282ff81832 - core[df12db4294e9bfd3]::result::unwrap_failed
[INFO] [stdout]   12:     0x57282fde3ed7 - ptree2[ba3439edf6f5c0d4]::print_config::tests::load_toml_config_file
[INFO] [stdout]   13:     0x57282fdef8d9 - <ptree2[ba3439edf6f5c0d4]::print_config::tests::load_toml_config_file::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   14:     0x57282fdf1d4b - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]   15:     0x57282fdff3b5 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]   16:     0x57282fdf8c74 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stdout]   17:     0x57282fe02512 - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   18:     0x57282ff68339 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   19:     0x79811f43adfa - <unknown>
[INFO] [stdout]   20:     0x79811f4ce3d4 - clone
[INFO] [stdout]   21:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     print_config::tests::load_env
[INFO] [stdout]     print_config::tests::load_toml_config_file
[INFO] [stdout]     print_config::tests::load_yaml_config_file
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 14 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "73355654e86b94bff3a30adf4c662edae5e825a914206476dddfc6a3bf66975f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73355654e86b94bff3a30adf4c662edae5e825a914206476dddfc6a3bf66975f", kill_on_drop: false }`
[INFO] [stdout] 73355654e86b94bff3a30adf4c662edae5e825a914206476dddfc6a3bf66975f
