[INFO] fetching crate sliding_window_alt 0.1.2...
[INFO] testing sliding_window_alt-0.1.2 against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739-1
[INFO] extracting crate sliding_window_alt 0.1.2 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate sliding_window_alt 0.1.2
[INFO] finished tweaking crates.io crate sliding_window_alt 0.1.2
[INFO] tweaked toml for crates.io crate sliding_window_alt 0.1.2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate sliding_window_alt 0.1.2 on toolchain ec6f9a5b4413f74386267ef8efc93712c2ce6db6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate sliding_window_alt 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" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sliding_window v0.1.2
[INFO] [stderr]   Downloaded cast v0.2.7
[INFO] [stderr]   Downloaded queues v1.1.0
[INFO] [stderr]   Downloaded circular-queue v0.2.6
[INFO] [stderr]   Downloaded itoa v1.0.1
[INFO] [stderr]   Downloaded serde v1.0.136
[INFO] [stderr]   Downloaded generic-array v0.14.5
[INFO] [stderr]   Downloaded plotters-backend v0.3.2
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.80
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.80
[INFO] [stderr]   Downloaded plotters-svg v0.3.1
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.80
[INFO] [stderr]   Downloaded semver v1.0.7
[INFO] [stderr]   Downloaded crossbeam-deque v0.8.1
[INFO] [stderr]   Downloaded criterion-plot v0.4.4
[INFO] [stderr]   Downloaded unicode-width v0.1.9
[INFO] [stderr]   Downloaded quote v1.0.17
[INFO] [stderr]   Downloaded half v1.8.2
[INFO] [stderr]   Downloaded ryu v1.0.9
[INFO] [stderr]   Downloaded proc-macro2 v1.0.37
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.80
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.8
[INFO] [stderr]   Downloaded serde_json v1.0.79
[INFO] [stderr]   Downloaded memchr v2.4.1
[INFO] [stderr]   Downloaded rayon-core v1.9.1
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.8
[INFO] [stderr]   Downloaded log v0.4.16
[INFO] [stderr]   Downloaded serde_derive v1.0.136
[INFO] [stderr]   Downloaded bumpalo v3.9.1
[INFO] [stderr]   Downloaded js-sys v0.3.57
[INFO] [stderr]   Downloaded crossbeam-channel v0.5.4
[INFO] [stderr]   Downloaded itertools v0.10.3
[INFO] [stderr]   Downloaded rayon v1.5.1
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.80
[INFO] [stderr]   Downloaded syn v1.0.91
[INFO] [stderr]   Downloaded regex v1.5.5
[INFO] [stderr]   Downloaded libc v0.2.122
[INFO] [stderr]   Downloaded web-sys v0.3.57
[INFO] [stderr]   Downloaded plotters v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 662f8506554013e3c18ccf6b3b40163c3f3bd4a6b18d9e84d59a6e3bfa0de338
[INFO] running `Command { std: "docker" "start" "-a" "662f8506554013e3c18ccf6b3b40163c3f3bd4a6b18d9e84d59a6e3bfa0de338", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "662f8506554013e3c18ccf6b3b40163c3f3bd4a6b18d9e84d59a6e3bfa0de338", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "662f8506554013e3c18ccf6b3b40163c3f3bd4a6b18d9e84d59a6e3bfa0de338", kill_on_drop: false }`
[INFO] [stdout] 662f8506554013e3c18ccf6b3b40163c3f3bd4a6b18d9e84d59a6e3bfa0de338
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5597ea98cd44fcfe5ac7a3d1b3a592fafdc3956cc8ee87ebe7724e7ecc565841
[INFO] running `Command { std: "docker" "start" "-a" "5597ea98cd44fcfe5ac7a3d1b3a592fafdc3956cc8ee87ebe7724e7ecc565841", kill_on_drop: false }`
[INFO] [stderr]    Compiling sliding_window_alt v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:246:17
[INFO] [stdout]     |
[INFO] [stdout] 246 |     pub fn iter(&self) -> Chain<Iter<T>, Iter<T>> {
[INFO] [stdout]     |                 ^^^^^           ^^^^^^^  ^^^^^^^ the same lifetime is hidden 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]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 246 |     pub fn iter(&self) -> Chain<Iter<'_, T>, Iter<'_, T>> {
[INFO] [stdout]     |                                      +++          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:252:21
[INFO] [stdout]     |
[INFO] [stdout] 252 |     pub fn iter_mut(&mut self) -> Chain<IterMut<T>, IterMut<T>> {
[INFO] [stdout]     |                     ^^^^^^^^^           ^^^^^^^^^^  ^^^^^^^^^^ the same lifetime is hidden 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] 252 |     pub fn iter_mut(&mut self) -> Chain<IterMut<'_, T>, IterMut<'_, T>> {
[INFO] [stdout]     |                                                 +++             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "5597ea98cd44fcfe5ac7a3d1b3a592fafdc3956cc8ee87ebe7724e7ecc565841", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5597ea98cd44fcfe5ac7a3d1b3a592fafdc3956cc8ee87ebe7724e7ecc565841", kill_on_drop: false }`
[INFO] [stdout] 5597ea98cd44fcfe5ac7a3d1b3a592fafdc3956cc8ee87ebe7724e7ecc565841
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd155aaea07da219bc1194bd549e6a4d08d8bc69d08b284d542fc370bdc7488f
[INFO] running `Command { std: "docker" "start" "-a" "dd155aaea07da219bc1194bd549e6a4d08d8bc69d08b284d542fc370bdc7488f", kill_on_drop: false }`
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling semver v1.0.7
[INFO] [stderr]    Compiling libc v0.2.122
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling ryu v1.0.9
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling plotters-backend v0.3.2
[INFO] [stderr]    Compiling itoa v1.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling circular-queue v0.2.6
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling plotters-svg v0.3.1
[INFO] [stderr]    Compiling half v1.8.2
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling crossbeam-channel v0.5.4
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling queues v1.1.0
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:246:17
[INFO] [stdout]     |
[INFO] [stdout] 246 |     pub fn iter(&self) -> Chain<Iter<T>, Iter<T>> {
[INFO] [stdout]     |                 ^^^^^           ^^^^^^^  ^^^^^^^ the same lifetime is hidden 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]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 246 |     pub fn iter(&self) -> Chain<Iter<'_, T>, Iter<'_, T>> {
[INFO] [stdout]     |                                      +++          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:252:21
[INFO] [stdout]     |
[INFO] [stdout] 252 |     pub fn iter_mut(&mut self) -> Chain<IterMut<T>, IterMut<T>> {
[INFO] [stdout]     |                     ^^^^^^^^^           ^^^^^^^^^^  ^^^^^^^^^^ the same lifetime is hidden 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] 252 |     pub fn iter_mut(&mut self) -> Chain<IterMut<'_, T>, IterMut<'_, T>> {
[INFO] [stdout]     |                                                 +++             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quote v1.0.17
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling sliding_window v0.1.2
[INFO] [stderr]    Compiling plotters v0.3.1
[INFO] [stderr]    Compiling criterion-plot v0.4.4
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.3.6
[INFO] [stderr]    Compiling sliding_window_alt v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:246:17
[INFO] [stdout]     |
[INFO] [stdout] 246 |     pub fn iter(&self) -> Chain<Iter<T>, Iter<T>> {
[INFO] [stdout]     |                 ^^^^^           ^^^^^^^  ^^^^^^^ the same lifetime is hidden 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]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 246 |     pub fn iter(&self) -> Chain<Iter<'_, T>, Iter<'_, T>> {
[INFO] [stdout]     |                                      +++          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:252:21
[INFO] [stdout]     |
[INFO] [stdout] 252 |     pub fn iter_mut(&mut self) -> Chain<IterMut<T>, IterMut<T>> {
[INFO] [stdout]     |                     ^^^^^^^^^           ^^^^^^^^^^  ^^^^^^^^^^ the same lifetime is hidden 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] 252 |     pub fn iter_mut(&mut self) -> Chain<IterMut<'_, T>, IterMut<'_, T>> {
[INFO] [stdout]     |                                                 +++             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 30.66s
[INFO] running `Command { std: "docker" "inspect" "dd155aaea07da219bc1194bd549e6a4d08d8bc69d08b284d542fc370bdc7488f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd155aaea07da219bc1194bd549e6a4d08d8bc69d08b284d542fc370bdc7488f", kill_on_drop: false }`
[INFO] [stdout] dd155aaea07da219bc1194bd549e6a4d08d8bc69d08b284d542fc370bdc7488f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 56eb1f5337994f1426b2105631b9d5d2dec7cb63edda0a8bb9f9255f1174e54f
[INFO] running `Command { std: "docker" "start" "-a" "56eb1f5337994f1426b2105631b9d5d2dec7cb63edda0a8bb9f9255f1174e54f", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:246:17
[INFO] [stderr]     |
[INFO] [stderr] 246 |     pub fn iter(&self) -> Chain<Iter<T>, Iter<T>> {
[INFO] [stderr]     |                 ^^^^^           ^^^^^^^  ^^^^^^^ the same lifetime is hidden 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]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 246 |     pub fn iter(&self) -> Chain<Iter<'_, T>, Iter<'_, T>> {
[INFO] [stderr]     |                                      +++          +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:252:21
[INFO] [stderr]     |
[INFO] [stderr] 252 |     pub fn iter_mut(&mut self) -> Chain<IterMut<T>, IterMut<T>> {
[INFO] [stderr]     |                     ^^^^^^^^^           ^^^^^^^^^^  ^^^^^^^^^^ the same lifetime is hidden 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] 252 |     pub fn iter_mut(&mut self) -> Chain<IterMut<'_, T>, IterMut<'_, T>> {
[INFO] [stderr]     |                                                 +++             +++
[INFO] [stderr] 
[INFO] [stderr] warning: `sliding_window_alt` (lib) generated 2 warnings (run `cargo fix --lib -p sliding_window_alt` to apply 2 suggestions)
[INFO] [stderr] warning: `sliding_window_alt` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/sliding_window_alt-039dba600ef383f3)
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test tests::for_loop ... ok
[INFO] [stdout] test tests::create ... ok
[INFO] [stdout] test tests::from ... ok
[INFO] [stdout] test tests::create_too_small ... ok
[INFO] [stdout] test tests::from_slice ... ok
[INFO] [stdout] test tests::into_arr ... ok
[INFO] [stdout] test tests::index ... ok
[INFO] [stdout] test tests::push ... ok
[INFO] [stdout] test tests::into_vec ... ok
[INFO] [stdout] test tests::push_slice_too_much ... ok
[INFO] [stdout] test tests::partialeqs ... ok
[INFO] [stdout] test tests::use_iter_mut ... ok
[INFO] [stdout] test tests::push_slice ... ok
[INFO] [stdout] test tests::use_iter ... ok
[INFO] [stdout] test tests::use_iter_no_modif ... ok
[INFO] [stdout] test tests::partialneqs ... ok
[INFO] [stdout] test tests::from_empty - should panic ... ok
[INFO] [stdout] test tests::into_empty - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sliding_window_alt
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - Iterator (line 61) ... ok
[INFO] [stdout] test src/lib.rs - (line 61) ... ok
[INFO] [stdout] test src/lib.rs - Chain (line 61) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.48s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "56eb1f5337994f1426b2105631b9d5d2dec7cb63edda0a8bb9f9255f1174e54f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56eb1f5337994f1426b2105631b9d5d2dec7cb63edda0a8bb9f9255f1174e54f", kill_on_drop: false }`
[INFO] [stdout] 56eb1f5337994f1426b2105631b9d5d2dec7cb63edda0a8bb9f9255f1174e54f
