[INFO] fetching crate auto-diff 0.5.9...
[INFO] testing auto-diff-0.5.9 against try#28f95933dc0727396c07b48d0a8cb5211b7fb472 for pr-154065-2
[INFO] extracting crate auto-diff 0.5.9 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate auto-diff 0.5.9
[INFO] finished tweaking crates.io crate auto-diff 0.5.9
[INFO] tweaked toml for crates.io crate auto-diff 0.5.9 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate auto-diff 0.5.9 on toolchain 28f95933dc0727396c07b48d0a8cb5211b7fb472
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate auto-diff 0.5.9 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" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec348557869d2082033d4d82d3c70ef9f536b149d6bafa79fa44323081eff227
[INFO] running `Command { std: "docker" "start" "-a" "ec348557869d2082033d4d82d3c70ef9f536b149d6bafa79fa44323081eff227", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec348557869d2082033d4d82d3c70ef9f536b149d6bafa79fa44323081eff227", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec348557869d2082033d4d82d3c70ef9f536b149d6bafa79fa44323081eff227", kill_on_drop: false }`
[INFO] [stdout] ec348557869d2082033d4d82d3c70ef9f536b149d6bafa79fa44323081eff227
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef31a7c103025634380d2864d123ecb04c7f8a31d7fbecfd6fabb6ccd4186153
[INFO] running `Command { std: "docker" "start" "-a" "ef31a7c103025634380d2864d123ecb04c7f8a31d7fbecfd6fabb6ccd4186153", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling libm v0.2.2
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.89
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling blas-src v0.8.0
[INFO] [stderr]    Compiling lapack-src v0.8.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling quote v1.0.17
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]    Compiling blas-sys v0.7.1
[INFO] [stderr]    Compiling lapack-sys v0.14.0
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling lapack v0.19.0
[INFO] [stderr]    Compiling blas v0.22.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rand_distr v0.4.3
[INFO] [stderr]    Compiling auto-diff-macros v0.5.9
[INFO] [stderr]    Compiling tensor-rs v0.5.9
[INFO] [stderr]    Compiling auto-diff v0.5.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/collection/generational_index.rs:131:21
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn iter_key(&self) -> GenIndexIter<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]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn iter_key(&self) -> GenIndexIter<'_, T> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/collection/generational_index.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |     pub fn new(index_ref: &GenIndex<T>) -> GenIndexIter<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] 142 |     pub fn new(index_ref: &GenIndex<T>) -> GenIndexIter<'_, T> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/collection/directed_graph.rs:50:22
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn iter_data(&self) -> NodeIterator<TData> {
[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] 50 |     pub fn iter_data(&self) -> NodeIterator<'_, TData> {
[INFO] [stdout]    |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/collection/directed_graph.rs:56:20
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn iter_op(&self) -> NodeIterator<TOp> {
[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] 56 |     pub fn iter_op(&self) -> NodeIterator<'_, TOp> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/collection/directed_graph.rs:65:32
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn iter_op_given_input(&self, var: &TData) -> Result<NodeIterator<TOp>, &str> {
[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] 65 |     pub fn iter_op_given_input(&self, var: &TData) -> Result<NodeIterator<'_, TOp>, &str> {
[INFO] [stdout]    |                                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/collection/directed_graph.rs:78:33
[INFO] [stdout]    |
[INFO] [stdout] 78 |     pub fn iter_op_given_output(&self, var: &TData) -> Result<NodeIterator<TOp>, &str> {
[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] 78 |     pub fn iter_op_given_output(&self, var: &TData) -> Result<NodeIterator<'_, TOp>, &str> {
[INFO] [stdout]    |                                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/collection/directed_graph.rs:91:32
[INFO] [stdout]    |
[INFO] [stdout] 91 |     pub fn iter_input_given_op(&self, func: &TOp) -> Result<NodeIterator<TData>, &str> {
[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] 91 |     pub fn iter_input_given_op(&self, func: &TOp) -> Result<NodeIterator<'_, TData>, &str> {
[INFO] [stdout]    |                                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/collection/directed_graph.rs:104:33
[INFO] [stdout]     |
[INFO] [stdout] 104 |     pub fn iter_output_given_op(&self, func: &TOp) -> Result<NodeIterator<TData>, &str> {
[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] 104 |     pub fn iter_output_given_op(&self, func: &TOp) -> Result<NodeIterator<'_, TData>, &str> {
[INFO] [stdout]     |                                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.25s
[INFO] running `Command { std: "docker" "inspect" "ef31a7c103025634380d2864d123ecb04c7f8a31d7fbecfd6fabb6ccd4186153", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef31a7c103025634380d2864d123ecb04c7f8a31d7fbecfd6fabb6ccd4186153", kill_on_drop: false }`
[INFO] [stdout] ef31a7c103025634380d2864d123ecb04c7f8a31d7fbecfd6fabb6ccd4186153
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9ef8cd8d310738d9547daeaededca7dad4b96e44d39380792a11b67e8956894
[INFO] running `Command { std: "docker" "start" "-a" "b9ef8cd8d310738d9547daeaededca7dad4b96e44d39380792a11b67e8956894", kill_on_drop: false }`
[INFO] [stderr] warning: auto-diff v0.5.9 (/opt/rustwide/workdir) ignoring invalid dependency `cargo-expand` which is missing a lib target
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling semver v1.0.7
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling dirs-sys v0.3.7
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling protobuf v2.27.1
[INFO] [stderr]    Compiling weezl v0.1.5
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling ryu v1.0.9
[INFO] [stderr]    Compiling dirs v3.0.2
[INFO] [stderr]    Compiling deflate v0.8.6
[INFO] [stderr]    Compiling miniz_oxide v0.3.7
[INFO] [stderr]    Compiling num-bigint v0.3.3
[INFO] [stderr]    Compiling plotters-backend v0.3.2
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling itoa v1.0.1
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling plotters-svg v0.3.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.4
[INFO] [stderr]    Compiling gif v0.11.3
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling png v0.16.8
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling bytemuck v1.8.0
[INFO] [stderr]    Compiling half v1.8.2
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling openblas-build v0.1.1
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling plotters v0.3.1
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling gethostname v0.2.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling iter-read v0.3.1
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/collection/generational_index.rs:131:21
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn iter_key(&self) -> GenIndexIter<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]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn iter_key(&self) -> GenIndexIter<'_, T> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/collection/generational_index.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |     pub fn new(index_ref: &GenIndex<T>) -> GenIndexIter<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] 142 |     pub fn new(index_ref: &GenIndex<T>) -> GenIndexIter<'_, T> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/collection/directed_graph.rs:50:22
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn iter_data(&self) -> NodeIterator<TData> {
[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] 50 |     pub fn iter_data(&self) -> NodeIterator<'_, TData> {
[INFO] [stdout]    |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/collection/directed_graph.rs:56:20
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn iter_op(&self) -> NodeIterator<TOp> {
[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] 56 |     pub fn iter_op(&self) -> NodeIterator<'_, TOp> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/collection/directed_graph.rs:65:32
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn iter_op_given_input(&self, var: &TData) -> Result<NodeIterator<TOp>, &str> {
[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] 65 |     pub fn iter_op_given_input(&self, var: &TData) -> Result<NodeIterator<'_, TOp>, &str> {
[INFO] [stdout]    |                                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/collection/directed_graph.rs:78:33
[INFO] [stdout]    |
[INFO] [stdout] 78 |     pub fn iter_op_given_output(&self, var: &TData) -> Result<NodeIterator<TOp>, &str> {
[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] 78 |     pub fn iter_op_given_output(&self, var: &TData) -> Result<NodeIterator<'_, TOp>, &str> {
[INFO] [stdout]    |                                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/collection/directed_graph.rs:91:32
[INFO] [stdout]    |
[INFO] [stdout] 91 |     pub fn iter_input_given_op(&self, func: &TOp) -> Result<NodeIterator<TData>, &str> {
[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] 91 |     pub fn iter_input_given_op(&self, func: &TOp) -> Result<NodeIterator<'_, TData>, &str> {
[INFO] [stdout]    |                                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/collection/directed_graph.rs:104:33
[INFO] [stdout]     |
[INFO] [stdout] 104 |     pub fn iter_output_given_op(&self, func: &TOp) -> Result<NodeIterator<TData>, &str> {
[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] 104 |     pub fn iter_output_given_op(&self, func: &TOp) -> Result<NodeIterator<'_, TData>, &str> {
[INFO] [stdout]     |                                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling openblas-src v0.10.4
[INFO] [stderr]    Compiling criterion-plot v0.4.4
[INFO] [stderr]    Compiling serde-pickle v0.6.3
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling jpeg-decoder v0.1.22
[INFO] [stderr]    Compiling criterion v0.3.5
[INFO] [stderr]    Compiling tensorboard-proto v0.5.7
[INFO] [stderr]    Compiling tiff v0.6.1
[INFO] [stderr]    Compiling image v0.23.14
[INFO] [stderr]    Compiling tensorboard-rs v0.5.9
[INFO] [stderr]    Compiling auto-diff v0.5.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/collection/generational_index.rs:131:21
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn iter_key(&self) -> GenIndexIter<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]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn iter_key(&self) -> GenIndexIter<'_, T> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/collection/generational_index.rs:142:27
[INFO] [stdout]     |
[INFO] [stdout] 142 |     pub fn new(index_ref: &GenIndex<T>) -> GenIndexIter<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] 142 |     pub fn new(index_ref: &GenIndex<T>) -> GenIndexIter<'_, T> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/collection/directed_graph.rs:50:22
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn iter_data(&self) -> NodeIterator<TData> {
[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] 50 |     pub fn iter_data(&self) -> NodeIterator<'_, TData> {
[INFO] [stdout]    |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/collection/directed_graph.rs:56:20
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn iter_op(&self) -> NodeIterator<TOp> {
[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] 56 |     pub fn iter_op(&self) -> NodeIterator<'_, TOp> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/collection/directed_graph.rs:65:32
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn iter_op_given_input(&self, var: &TData) -> Result<NodeIterator<TOp>, &str> {
[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] 65 |     pub fn iter_op_given_input(&self, var: &TData) -> Result<NodeIterator<'_, TOp>, &str> {
[INFO] [stdout]    |                                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/collection/directed_graph.rs:78:33
[INFO] [stdout]    |
[INFO] [stdout] 78 |     pub fn iter_op_given_output(&self, var: &TData) -> Result<NodeIterator<TOp>, &str> {
[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] 78 |     pub fn iter_op_given_output(&self, var: &TData) -> Result<NodeIterator<'_, TOp>, &str> {
[INFO] [stdout]    |                                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/collection/directed_graph.rs:91:32
[INFO] [stdout]    |
[INFO] [stdout] 91 |     pub fn iter_input_given_op(&self, func: &TOp) -> Result<NodeIterator<TData>, &str> {
[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] 91 |     pub fn iter_input_given_op(&self, func: &TOp) -> Result<NodeIterator<'_, TData>, &str> {
[INFO] [stdout]    |                                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/collection/directed_graph.rs:104:33
[INFO] [stdout]     |
[INFO] [stdout] 104 |     pub fn iter_output_given_op(&self, func: &TOp) -> Result<NodeIterator<TData>, &str> {
[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] 104 |     pub fn iter_output_given_op(&self, func: &TOp) -> Result<NodeIterator<'_, TData>, &str> {
[INFO] [stdout]     |                                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 5m 11s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.5
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "b9ef8cd8d310738d9547daeaededca7dad4b96e44d39380792a11b67e8956894", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9ef8cd8d310738d9547daeaededca7dad4b96e44d39380792a11b67e8956894", kill_on_drop: false }`
[INFO] [stdout] b9ef8cd8d310738d9547daeaededca7dad4b96e44d39380792a11b67e8956894
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ae5c3e9b856cea946d2dac02814955eb7fb0d6421f77b64bc934eb7f42d25bfc
[INFO] running `Command { std: "docker" "start" "-a" "ae5c3e9b856cea946d2dac02814955eb7fb0d6421f77b64bc934eb7f42d25bfc", kill_on_drop: false }`
[INFO] [stderr] warning: auto-diff v0.5.9 (/opt/rustwide/workdir) ignoring invalid dependency `cargo-expand` which is missing a lib target
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/collection/generational_index.rs:131:21
[INFO] [stderr]     |
[INFO] [stderr] 131 |     pub fn iter_key(&self) -> GenIndexIter<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]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 131 |     pub fn iter_key(&self) -> GenIndexIter<'_, T> {
[INFO] [stderr]     |                                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/collection/generational_index.rs:142:27
[INFO] [stderr]     |
[INFO] [stderr] 142 |     pub fn new(index_ref: &GenIndex<T>) -> GenIndexIter<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] 142 |     pub fn new(index_ref: &GenIndex<T>) -> GenIndexIter<'_, T> {
[INFO] [stderr]     |                                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/collection/directed_graph.rs:50:22
[INFO] [stderr]    |
[INFO] [stderr] 50 |     pub fn iter_data(&self) -> NodeIterator<TData> {
[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] 50 |     pub fn iter_data(&self) -> NodeIterator<'_, TData> {
[INFO] [stderr]    |                                             +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/collection/directed_graph.rs:56:20
[INFO] [stderr]    |
[INFO] [stderr] 56 |     pub fn iter_op(&self) -> NodeIterator<TOp> {
[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] 56 |     pub fn iter_op(&self) -> NodeIterator<'_, TOp> {
[INFO] [stderr]    |                                           +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/collection/directed_graph.rs:65:32
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub fn iter_op_given_input(&self, var: &TData) -> Result<NodeIterator<TOp>, &str> {
[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] 65 |     pub fn iter_op_given_input(&self, var: &TData) -> Result<NodeIterator<'_, TOp>, &str> {
[INFO] [stderr]    |                                                                           +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/collection/directed_graph.rs:78:33
[INFO] [stderr]    |
[INFO] [stderr] 78 |     pub fn iter_op_given_output(&self, var: &TData) -> Result<NodeIterator<TOp>, &str> {
[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] 78 |     pub fn iter_op_given_output(&self, var: &TData) -> Result<NodeIterator<'_, TOp>, &str> {
[INFO] [stderr]    |                                                                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/collection/directed_graph.rs:91:32
[INFO] [stderr]    |
[INFO] [stderr] 91 |     pub fn iter_input_given_op(&self, func: &TOp) -> Result<NodeIterator<TData>, &str> {
[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] 91 |     pub fn iter_input_given_op(&self, func: &TOp) -> Result<NodeIterator<'_, TData>, &str> {
[INFO] [stderr]    |                                                                          +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/collection/directed_graph.rs:104:33
[INFO] [stderr]     |
[INFO] [stderr] 104 |     pub fn iter_output_given_op(&self, func: &TOp) -> Result<NodeIterator<TData>, &str> {
[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] 104 |     pub fn iter_output_given_op(&self, func: &TOp) -> Result<NodeIterator<'_, TData>, &str> {
[INFO] [stderr]     |                                                                           +++
[INFO] [stderr] 
[INFO] [stderr] warning: `auto-diff` (lib) generated 8 warnings (run `cargo fix --lib -p auto-diff` to apply 8 suggestions)
[INFO] [stderr] warning: `auto-diff` (lib test) generated 8 warnings (8 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.5
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/auto_diff-4c020c3ab6f24b2b)
[INFO] [stdout] 
[INFO] [stdout] running 57 tests
[INFO] [stdout] test collection::directed_graph::tests::add_data ... ok
[INFO] [stdout] test collection::directed_graph::tests::new ... ok
[INFO] [stdout] test collection::directed_graph::tests::test_get_input_cache ... ok
[INFO] [stdout] test collection::directed_graph::tests::test_get_output_cache ... ok
[INFO] [stdout] test collection::generational_index::tests::genindex_new_add_del ... ok
[INFO] [stdout] test collection::generational_index::tests::iter ... ok
[INFO] [stdout] test collection::generational_index::tests::test_gen_index ... ok
[INFO] [stdout] test collection::directed_graph::tests::iter ... ok
[INFO] [stdout] test collection::undirected_graph::tests::new ... ok
[INFO] [stdout] test err::tests::test ... ok
[INFO] [stdout] test op::element::tests::abs ... ok
[INFO] [stdout] test op::element::tests::ceil ... ok
[INFO] [stdout] test op::element::tests::cos ... ok
[INFO] [stdout] test op::element::tests::exp ... ok
[INFO] [stdout] test op::element::tests::expm1 ... ok
[INFO] [stdout] test op::element::tests::frac ... ok
[INFO] [stdout] test op::element::tests::log ... ok
[INFO] [stdout] test op::element::tests::log10 ... ok
[INFO] [stdout] test op::element::tests::floor ... ok
[INFO] [stdout] test op::element::tests::log1pexp ... ok
[INFO] [stdout] test op::element::tests::sign ... ok
[INFO] [stdout] test op::element::tests::sqrt ... ok
[INFO] [stdout] test op::element::tests::log2 ... ok
[INFO] [stdout] test op::element::tests::sigmoid ... ok
[INFO] [stdout] test op::element::tests::rsqrt ... ok
[INFO] [stdout] test op::local::tests::matmul ... ok
[INFO] [stdout] test op::element::tests::tanh ... ok
[INFO] [stdout] test op::element::tests::reciprocal ... ok
[INFO] [stdout] test op::element::tests::sinh ... ok
[INFO] [stdout] test op::element::tests::round ... ok
[INFO] [stdout] test op::nonlinear::tests::elu ... ok
[INFO] [stdout] test op::loss::tests::test_cross_entropy_loss ... ok
[INFO] [stdout] test op::element::tests::log1p ... ok
[INFO] [stdout] test op::nonlinear::tests::sigmoid ... ok
[INFO] [stdout] test op::nonlinear::tests::sine ... ok
[INFO] [stdout] test optim::tests::mini_batch ... ok
[INFO] [stdout] test op::element::tests::neg ... ok
[INFO] [stdout] test op::element::tests::trunc ... ok
[INFO] [stdout] test op::nonlinear::tests::relu ... ok
[INFO] [stdout] test serde::generational_index::tests::test_serde_genindex ... ok
[INFO] [stdout] test serde::generational_index::tests::test_serde_genkey ... ok
[INFO] [stdout] test var::tests::mul ... ok
[INFO] [stdout] test var::tests::test_add_in_fn ... ok
[INFO] [stdout] test var::tests::test_linear ... ok
[INFO] [stdout] test var::tests::test_macro_tensor ... ok
[INFO] [stdout] test op::element::tests::cosh ... ok
[INFO] [stdout] test var::tests::test_op_mse ... ok
[INFO] [stdout] test serde::directed_graph::tests::test_serde_graph ... ok
[INFO] [stdout] test serde::op::tests::test_serde_op ... ok
[INFO] [stdout] test serde::compute_graph::tests::test_serde_net ... ok
[INFO] [stdout] test serde::var::tests::test_serde_var_inner ... ok
[INFO] [stdout] test serde::var_inner::tests::test_serde_var_inner ... ok
[INFO] [stdout] test var::tests::test_mul_repeat_vars ... ok
[INFO] [stdout] test op::element::tests::atan ... ok
[INFO] [stdout] test op::element::tests::tan ... ok
[INFO] [stdout] test op::element::tests::asin ... ok
[INFO] [stdout] test op::element::tests::acos ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 57 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests auto_diff
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/var.rs - var::Var::outer (line 264) ... ok
[INFO] [stdout] test src/var.rs - var::Var::stack (line 472) ... ok
[INFO] [stdout] test src/var.rs - var::Var::get_patch (line 510) ... ok
[INFO] [stdout] test src/var.rs - var::Var::set_patch (line 527) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.20s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ae5c3e9b856cea946d2dac02814955eb7fb0d6421f77b64bc934eb7f42d25bfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae5c3e9b856cea946d2dac02814955eb7fb0d6421f77b64bc934eb7f42d25bfc", kill_on_drop: false }`
[INFO] [stdout] ae5c3e9b856cea946d2dac02814955eb7fb0d6421f77b64bc934eb7f42d25bfc
