[INFO] fetching crate mushin 0.5.0...
[INFO] testing mushin-0.5.0 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate mushin 0.5.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate mushin 0.5.0
[INFO] finished tweaking crates.io crate mushin 0.5.0
[INFO] tweaked toml for crates.io crate mushin 0.5.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mushin 0.5.0 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 26 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b0b4fc379683b271b3bd3644a0b5e78aedc50dc7e4a58b2567bb54ac68a96743
[INFO] running `Command { std: "docker" "start" "-a" "b0b4fc379683b271b3bd3644a0b5e78aedc50dc7e4a58b2567bb54ac68a96743", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0b4fc379683b271b3bd3644a0b5e78aedc50dc7e4a58b2567bb54ac68a96743", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0b4fc379683b271b3bd3644a0b5e78aedc50dc7e4a58b2567bb54ac68a96743", kill_on_drop: false }`
[INFO] [stdout] b0b4fc379683b271b3bd3644a0b5e78aedc50dc7e4a58b2567bb54ac68a96743
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 66741c4c8dfdc9baff2751d983a6daa2be6ca85906148c8eec4088340c7be3bc
[INFO] running `Command { std: "docker" "start" "-a" "66741c4c8dfdc9baff2751d983a6daa2be6ca85906148c8eec4088340c7be3bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling half v1.8.3
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling arrayfire v3.8.0
[INFO] [stderr]    Compiling mushin v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `BinaryReverseFn` and `UnaryReverseFn`
[INFO] [stdout]  --> src/graph/tape.rs:2:30
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use crate::graph::node::{BinaryReverseFn, NodeId, UnaryReverseFn};
[INFO] [stdout]   |                              ^^^^^^^^^^^^^^^          ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/graph/node.rs:107:24
[INFO] [stdout]     |
[INFO] [stdout] 107 |     pub(crate) fn data(&self) -> Ref<Array<f32>> {
[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] 107 |     pub(crate) fn data(&self) -> Ref<'_, Array<f32>> {
[INFO] [stdout]     |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/graph/node.rs:112:28
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub(crate) fn data_mut(&self) -> RefMut<Array<f32>> {
[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] 112 |     pub(crate) fn data_mut(&self) -> RefMut<'_, Array<f32>> {
[INFO] [stdout]     |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/graph/node.rs:117:24
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub(crate) fn grad(&self) -> Ref<Array<f32>> {
[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] 117 |     pub(crate) fn grad(&self) -> Ref<'_, Array<f32>> {
[INFO] [stdout]     |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/graph/node.rs:122:28
[INFO] [stdout]     |
[INFO] [stdout] 122 |     pub(crate) fn grad_mut(&self) -> RefMut<Array<f32>> {
[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] 122 |     pub(crate) fn grad_mut(&self) -> RefMut<'_, Array<f32>> {
[INFO] [stdout]     |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/graph/tape.rs:17:25
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub(crate) fn nodes(&self) -> Values<NodeId, Rc<Node>> {
[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] 17 |     pub(crate) fn nodes(&self) -> Values<'_, NodeId, Rc<Node>> {
[INFO] [stdout]    |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.65s
[INFO] running `Command { std: "docker" "inspect" "66741c4c8dfdc9baff2751d983a6daa2be6ca85906148c8eec4088340c7be3bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66741c4c8dfdc9baff2751d983a6daa2be6ca85906148c8eec4088340c7be3bc", kill_on_drop: false }`
[INFO] [stdout] 66741c4c8dfdc9baff2751d983a6daa2be6ca85906148c8eec4088340c7be3bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20c050f714b9303db3163e06359ff8dcdefe09c105305346972147127d1113b8
[INFO] running `Command { std: "docker" "start" "-a" "20c050f714b9303db3163e06359ff8dcdefe09c105305346972147127d1113b8", kill_on_drop: false }`
[INFO] [stdout] warning: unused imports: `BinaryReverseFn` and `UnaryReverseFn`
[INFO] [stdout]  --> src/graph/tape.rs:2:30
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use crate::graph::node::{BinaryReverseFn, NodeId, UnaryReverseFn};
[INFO] [stdout]   |                              ^^^^^^^^^^^^^^^          ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling mushin v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/graph/node.rs:107:24
[INFO] [stdout]     |
[INFO] [stdout] 107 |     pub(crate) fn data(&self) -> Ref<Array<f32>> {
[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] 107 |     pub(crate) fn data(&self) -> Ref<'_, Array<f32>> {
[INFO] [stdout]     |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/graph/node.rs:112:28
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub(crate) fn data_mut(&self) -> RefMut<Array<f32>> {
[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] 112 |     pub(crate) fn data_mut(&self) -> RefMut<'_, Array<f32>> {
[INFO] [stdout]     |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/graph/node.rs:117:24
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub(crate) fn grad(&self) -> Ref<Array<f32>> {
[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] 117 |     pub(crate) fn grad(&self) -> Ref<'_, Array<f32>> {
[INFO] [stdout]     |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/graph/node.rs:122:28
[INFO] [stdout]     |
[INFO] [stdout] 122 |     pub(crate) fn grad_mut(&self) -> RefMut<Array<f32>> {
[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] 122 |     pub(crate) fn grad_mut(&self) -> RefMut<'_, Array<f32>> {
[INFO] [stdout]     |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/graph/tape.rs:17:25
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub(crate) fn nodes(&self) -> Values<NodeId, Rc<Node>> {
[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] 17 |     pub(crate) fn nodes(&self) -> Values<'_, NodeId, Rc<Node>> {
[INFO] [stdout]    |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BinaryReverseFn` and `UnaryReverseFn`
[INFO] [stdout]  --> src/graph/tape.rs:2:30
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use crate::graph::node::{BinaryReverseFn, NodeId, UnaryReverseFn};
[INFO] [stdout]   |                              ^^^^^^^^^^^^^^^          ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/graph/node.rs:107:24
[INFO] [stdout]     |
[INFO] [stdout] 107 |     pub(crate) fn data(&self) -> Ref<Array<f32>> {
[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] 107 |     pub(crate) fn data(&self) -> Ref<'_, Array<f32>> {
[INFO] [stdout]     |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/graph/node.rs:112:28
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub(crate) fn data_mut(&self) -> RefMut<Array<f32>> {
[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] 112 |     pub(crate) fn data_mut(&self) -> RefMut<'_, Array<f32>> {
[INFO] [stdout]     |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/graph/node.rs:117:24
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub(crate) fn grad(&self) -> Ref<Array<f32>> {
[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] 117 |     pub(crate) fn grad(&self) -> Ref<'_, Array<f32>> {
[INFO] [stdout]     |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/graph/node.rs:122:28
[INFO] [stdout]     |
[INFO] [stdout] 122 |     pub(crate) fn grad_mut(&self) -> RefMut<Array<f32>> {
[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] 122 |     pub(crate) fn grad_mut(&self) -> RefMut<'_, Array<f32>> {
[INFO] [stdout]     |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/graph/tape.rs:17:25
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub(crate) fn nodes(&self) -> Values<NodeId, Rc<Node>> {
[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] 17 |     pub(crate) fn nodes(&self) -> Values<'_, NodeId, Rc<Node>> {
[INFO] [stdout]    |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/tmp/rustcNOE4Fa/symbols.o" "<6 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libtest-*,libgetopts-*,librustc_std_workspace_std-*}.rlib" "/opt/rustwide/target/debug/deps/{libarrayfire-76c01f0dd25311fc,libhalf-cc6be314b18dd970,liblibc-e2775a15e5abc6fd,libnum-08825b1d16367042,libnum_rational-65d190a0991d678a,libnum_iter-272925f6ca0c53d6,libnum_complex-9c939617ff12fe99,libnum_bigint-35cb7e1582da28e5,libnum_integer-74a4cf281e9d481c,libnum_traits-c87bc96fedcc67a8,liblazy_static-b3603208c0de2608}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libstd-*,libpanic_unwind-*,libobject-*,libmemchr-*,libaddr2line-*,libgimli-*,libcfg_if-*,librustc_demangle-*,libstd_detect-*,libhashbrown-*,librustc_std_workspace_alloc-*,libminiz_oxide-*,libadler2-*,libunwind-*,liblibc-*,librustc_std_workspace_core-*,liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-L" "/tmp/rustcNOE4Fa/raw-dylibs" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "/opt/arrayfire/lib" "-L" "/opt/arrayfire/lib64" "-L" "/usr/local/lib" "-L" "/usr/lib" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/mushin-d66cc812420fcf8a" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: undefined symbol: af_tile
[INFO] [stdout]           >>> referenced by data.rs:496 (/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/arrayfire-3.8.0/src/core/data.rs:496)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/mushin-d66cc812420fcf8a.mushin.f946e213929f09c3-cgu.2.rcgu.o:(arrayfire::core::data::tile::h85877ef53cddcd37)
[INFO] [stdout]           >>> referenced by data.rs:496 (/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/arrayfire-3.8.0/src/core/data.rs:496)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/mushin-d66cc812420fcf8a.mushin.f946e213929f09c3-cgu.2.rcgu.o:(arrayfire::core::data::tile::hfc0852274c6c6f2d)
[INFO] [stdout]           >>> referenced by data.rs:496 (/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/arrayfire-3.8.0/src/core/data.rs:496)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/mushin-d66cc812420fcf8a.mushin.f946e213929f09c3-cgu.2.rcgu.o:(arrayfire::core::data::tile::hfe077b74c2ce862b)
[INFO] [stdout]           
[INFO] [stdout]           rust-lld: error: undefined symbol: af_identity
[INFO] [stdout]           >>> referenced by data.rs:366 (/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/arrayfire-3.8.0/src/core/data.rs:366)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/mushin-d66cc812420fcf8a.mushin.f946e213929f09c3-cgu.2.rcgu.o:(arrayfire::core::data::identity::h5859733af8b4bca9)
[INFO] [stdout]           
[INFO] [stdout]           rust-lld: error: undefined symbol: af_assign_gen
[INFO] [stdout]           >>> referenced by index.rs:619 (/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/arrayfire-3.8.0/src/core/index.rs:619)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/mushin-d66cc812420fcf8a.mushin.f946e213929f09c3-cgu.2.rcgu.o:(arrayfire::core::index::assign_gen::h5d281dc8d4448c72)
[INFO] [stdout]           
[INFO] [stdout]           rust-lld: error: undefined symbol: af_all_true_all
[INFO] [stdout]           >>> referenced by mod.rs:684 (/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/arrayfire-3.8.0/src/algorithm/mod.rs:684)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/mushin-d66cc812420fcf8a.mushin.f946e213929f09c3-cgu.2.rcgu.o:(arrayfire::algorithm::all_true_all::h36c293fd2aa5927b)
[INFO] [stdout]           
[INFO] [stdout]           rust-lld: error: undefined symbol: af_sum_all
[INFO] [stdout]           >>> referenced by mod.rs:543 (/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/arrayfire-3.8.0/src/algorithm/mod.rs:543)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/mushin-d66cc812420fcf8a.mushin.f946e213929f09c3-cgu.2.rcgu.o:(arrayfire::algorithm::sum_all::h93dd7bcde697d39d)
[INFO] [stdout]           
[INFO] [stdout]           rust-lld: error: undefined symbol: af_add
[INFO] [stdout]           >>> referenced by arith.rs:407 (/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/arrayfire-3.8.0/src/core/arith.rs:407)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/mushin-d66cc812420fcf8a.mushin.f946e213929f09c3-cgu.1.rcgu.o:(arrayfire::core::arith::add_helper::hf28f6e92eb73e31a)
[INFO] [stdout]           
[INFO] [stdout]           rust-lld: error: undefined symbol: af_div
[INFO] [stdout]           >>> referenced by arith.rs:407 (/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/arrayfire-3.8.0/src/core/arith.rs:407)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/mushin-d66cc812420fcf8a.mushin.f946e213929f09c3-cgu.1.rcgu.o:(arrayfire::core::arith::div_helper::h5a603aa723cd1519)
[INFO] [stdout]           
[INFO] [stdout]           rust-lld: error: undefined symbol: af_mul
[INFO] [stdout]           >>> referenced by arith.rs:407 (/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/arrayfire-3.8.0/src/core/arith.rs:407)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/mushin-d66cc812420fcf8a.mushin.f946e213929f09c3-cgu.1.rcgu.o:(arrayfire::core::arith::mul_helper::h68080ac959978a1a)
[INFO] [stdout]           >>> referenced by arith.rs:407 (/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/arrayfire-3.8.0/src/core/arith.rs:407)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/mushin-d66cc812420fcf8a.mushin.f946e213929f09c3-cgu.1.rcgu.o:(arrayfire::core::arith::mul_helper::hc531646abe395c8a)
[INFO] [stdout]           
[INFO] [stdout]           rust-lld: error: undefined symbol: af_pow
[INFO] [stdout]           >>> referenced by arith.rs:407 (/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/arrayfire-3.8.0/src/core/arith.rs:407)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/mushin-d66cc812420fcf8a.mushin.f946e213929f09c3-cgu.1.rcgu.o:(arrayfire::core::arith::pow_helper::hf4e4b61314abf0e6)
[INFO] [stdout]           
[INFO] [stdout]           rust-lld: error: undefined symbol: af_sub
[INFO] [stdout]           >>> referenced by arith.rs:407 (/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/arrayfire-3.8.0/src/core/arith.rs:407)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/mushin-d66cc812420fcf8a.mushin.f946e213929f09c3-cgu.1.rcgu.o:(arrayfire::core::arith::sub_helper::h2e56f2623d9b1bb4)
[INFO] [stdout]           
[INFO] [stdout]           rust-lld: error: undefined symbol: af_abs
[INFO] [stdout]           >>> referenced by arith.rs:129 (/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/arrayfire-3.8.0/src/core/arith.rs:129)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/mushin-d66cc812420fcf8a.mushin.f946e213929f09c3-cgu.1.rcgu.o:(arrayfire::core::arith::abs::h16cb13894df836d1)
[INFO] [stdout]           
[INFO] [stdout]           rust-lld: error: undefined symbol: af_cos
[INFO] [stdout]           >>> referenced by arith.rs:129 (/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/arrayfire-3.8.0/src/core/arith.rs:129)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/mushin-d66cc812420fcf8a.mushin.f946e213929f09c3-cgu.1.rcgu.o:(arrayfire::core::arith::cos::h9306399d1a0630ae)
[INFO] [stdout]           
[INFO] [stdout]           rust-lld: error: undefined symbol: af_log
[INFO] [stdout]           >>> referenced by arith.rs:129 (/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/arrayfire-3.8.0/src/core/arith.rs:129)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/mushin-d66cc812420fcf8a.mushin.f946e213929f09c3-cgu.1.rcgu.o:(arrayfire::core::arith::log::hb34a2661f15ebd74)
[INFO] [stdout]           
[INFO] [stdout]           rust-lld: error: undefined symbol: af_sin
[INFO] [stdout]           >>> referenced by arith.rs:129 (/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/arrayfire-3.8.0/src/core/arith.rs:129)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/mushin-d66cc812420fcf8a.mushin.f946e213929f09c3-cgu.1.rcgu.o:(arrayfire::core::arith::sin::hb8f8b0413ee6ea2a)
[INFO] [stdout]           
[INFO] [stdout]           rust-lld: error: undefined symbol: af_maxof
[INFO] [stdout]           >>> referenced by arith.rs:296 (/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/arrayfire-3.8.0/src/core/arith.rs:296)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/mushin-d66cc812420fcf8a.mushin.f946e213929f09c3-cgu.1.rcgu.o:(arrayfire::core::arith::maxof::hd9318956e3100107)
[INFO] [stdout]           
[INFO] [stdout]           rust-lld: error: undefined symbol: af_gt
[INFO] [stdout]           >>> referenced by arith.rs:511 (/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/arrayfire-3.8.0/src/core/arith.rs:511)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/mushin-d66cc812420fcf8a.mushin.f946e213929f09c3-cgu.1.rcgu.o:(arrayfire::core::arith::gt_helper::h45f41942a97de908)
[INFO] [stdout]           
[INFO] [stdout]           rust-lld: error: undefined symbol: af_le
[INFO] [stdout]           >>> referenced by arith.rs:511 (/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/arrayfire-3.8.0/src/core/arith.rs:511)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/mushin-d66cc812420fcf8a.mushin.f946e213929f09c3-cgu.1.rcgu.o:(arrayfire::core::arith::le_helper::h05196f364a3ec22c)
[INFO] [stdout]           
[INFO] [stdout]           rust-lld: error: undefined symbol: af_set_seq_indexer
[INFO] [stdout]           >>> referenced by index.rs:168 (/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/arrayfire-3.8.0/src/core/index.rs:168)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/mushin-d66cc812420fcf8a.mushin.f946e213929f09c3-cgu.4.rcgu.o:(_$LT$arrayfire..core..seq..Seq$LT$T$GT$$u20$as$u20$arrayfire..core..index..Indexable$GT$::set::hf3b4ab16a9252d5d)
[INFO] [stdout]           
[INFO] [stdout]           rust-lld: error: undefined symbol: af_retain_array
[INFO] [stdout]           >>> referenced by array.rs:694 (/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/arrayfire-3.8.0/src/core/array.rs:694)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/mushin-d66cc812420fcf8a.mushin.f946e213929f09c3-cgu.3.rcgu.o:(_$LT$arrayfire..core..array..Array$LT$T$GT$$u20$as$u20$core..clone..Clone$GT$::clone::h30f05b1e0a488f97)
[INFO] [stdout]           >>> referenced by array.rs:694 (/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/arrayfire-3.8.0/src/core/array.rs:694)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/mushin-d66cc812420fcf8a.mushin.f946e213929f09c3-cgu.3.rcgu.o:(_$LT$arrayfire..core..array..Array$LT$T$GT$$u20$as$u20$core..clone..Clone$GT$::clone::hedd6ede4fad11a4a)
[INFO] [stdout]           >>> referenced by array.rs:694 (src/core/array.rs:694)
[INFO] [stdout]           >>>               arrayfire-76c01f0dd25311fc.arrayfire.7d3cbeb7f59b4377-cgu.0.rcgu.o:(_$LT$arrayfire..core..array..Array$LT$T$GT$$u20$as$u20$core..clone..Clone$GT$::clone::h895df3791c643959) in archive /opt/rustwide/target/debug/deps/libarrayfire-76c01f0dd25311fc.rlib
[INFO] [stdout]           
[INFO] [stdout]           rust-lld: error: undefined symbol: af_release_array
[INFO] [stdout]           >>> referenced by array.rs:710 (/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/arrayfire-3.8.0/src/core/array.rs:710)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/mushin-d66cc812420fcf8a.mushin.f946e213929f09c3-cgu.3.rcgu.o:(_$LT$arrayfire..core..array..Array$LT$T$GT$$u20$as$u20$core..ops..drop..Drop$GT$::drop::h1c8ee2a17ebe29f8)
[INFO] [stdout]           >>> referenced by array.rs:710 (/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/arrayfire-3.8.0/src/core/array.rs:710)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/mushin-d66cc812420fcf8a.mushin.f946e213929f09c3-cgu.3.rcgu.o:(_$LT$arrayfire..core..array..Array$LT$T$GT$$u20$as$u20$core..ops..drop..Drop$GT$::drop::hee4cc92cecd3e059)
[INFO] [stdout]           >>> referenced by array.rs:710 (src/core/array.rs:710)
[INFO] [stdout]           >>>               arrayfire-76c01f0dd25311fc.arrayfire.7d3cbeb7f59b4377-cgu.0.rcgu.o:(_$LT$arrayfire..core..array..Array$LT$T$GT$$u20$as$u20$core..ops..drop..Drop$GT$::drop::h5f9d11fd020453fc) in archive /opt/rustwide/target/debug/deps/libarrayfire-76c01f0dd25311fc.rlib
[INFO] [stdout]           
[INFO] [stdout]           rust-lld: error: too many errors emitted, stopping now (use --error-limit=0 to see all errors)
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mushin` (lib test) due to 1 previous error; 6 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "20c050f714b9303db3163e06359ff8dcdefe09c105305346972147127d1113b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20c050f714b9303db3163e06359ff8dcdefe09c105305346972147127d1113b8", kill_on_drop: false }`
[INFO] [stdout] 20c050f714b9303db3163e06359ff8dcdefe09c105305346972147127d1113b8
