[INFO] cloning repository https://github.com/Aalanli/MonadicBackprop
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Aalanli/MonadicBackprop" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAalanli%2FMonadicBackprop", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAalanli%2FMonadicBackprop'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3ecda06525a1ecea542d264242d2554ef6075c59
[INFO] checking Aalanli/MonadicBackprop against master#3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0 for pr-143164
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAalanli%2FMonadicBackprop" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Aalanli/MonadicBackprop
[INFO] finished tweaking git repo https://github.com/Aalanli/MonadicBackprop
[INFO] tweaked toml for git repo https://github.com/Aalanli/MonadicBackprop written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Aalanli/MonadicBackprop on toolchain 3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Aalanli/MonadicBackprop 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" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e3203d71b8d33d609bf69b18f834387a8d4160c5f63d14b7d6cb8290608e501c
[INFO] running `Command { std: "docker" "start" "-a" "e3203d71b8d33d609bf69b18f834387a8d4160c5f63d14b7d6cb8290608e501c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3203d71b8d33d609bf69b18f834387a8d4160c5f63d14b7d6cb8290608e501c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3203d71b8d33d609bf69b18f834387a8d4160c5f63d14b7d6cb8290608e501c", kill_on_drop: false }`
[INFO] [stdout] e3203d71b8d33d609bf69b18f834387a8d4160c5f63d14b7d6cb8290608e501c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 731f5cc983aebfc07257c1d1d7e56871cc691d3d47c40c7579613b876b82aff9
[INFO] running `Command { std: "docker" "start" "-a" "731f5cc983aebfc07257c1d1d7e56871cc691d3d47c40c7579613b876b82aff9", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]     Checking num-complex v0.4.3
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking MonadicBackprop v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::iter::Extend`
[INFO] [stdout]    --> src/main.rs:126:5
[INFO] [stdout]     |
[INFO] [stdout] 126 | use std::iter::Extend;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::Extend`
[INFO] [stdout]    --> src/main.rs:126:5
[INFO] [stdout]     |
[INFO] [stdout] 126 | use std::iter::Extend;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/main.rs:333:35
[INFO] [stdout]     |
[INFO] [stdout] 333 |     fn store_weight<D>(&mut self, s: StaticArrayId<D>) { todo!() }
[INFO] [stdout]     |                                   ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/main.rs:334:36
[INFO] [stdout]     |
[INFO] [stdout] 334 |     fn store_grad<D, F>(&mut self, s: Array<F, D>) { todo!() }
[INFO] [stdout]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/main.rs:335:36
[INFO] [stdout]     |
[INFO] [stdout] 335 |     fn get<D: Dimension, F>(&self, id: StaticArrayId<D>) -> &Array<F, D> { todo!() }
[INFO] [stdout]     |                                    ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `shape`
[INFO] [stdout]    --> src/main.rs:336:38
[INFO] [stdout]     |
[INFO] [stdout] 336 |     fn alloc<D: Dimension, F>(&self, shape: <D as Dimension>::Pattern) -> (StaticArrayId<D>, &mut Array<F, D>) { todo!() }
[INFO] [stdout]     |                                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_shape`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `shape`
[INFO] [stdout]    --> src/main.rs:337:43
[INFO] [stdout]     |
[INFO] [stdout] 337 |     fn alloc_temp<D: Dimension, F>(&self, shape: <D as Dimension>::Pattern) -> (StaticArrayId<D>, &mut Array<F, D>) { todo!() }
[INFO] [stdout]     |                                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_shape`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/main.rs:339:36
[INFO] [stdout]     |
[INFO] [stdout] 339 |     fn dyn_store_weight(&mut self, s: ArrayId) { todo!() }
[INFO] [stdout]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/main.rs:340:37
[INFO] [stdout]     |
[INFO] [stdout] 340 |     fn dyn_store_grad<F>(&mut self, s: ArrayD<F>) { todo!() }
[INFO] [stdout]     |                                     ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/main.rs:341:26
[INFO] [stdout]     |
[INFO] [stdout] 341 |     fn dyn_get<F>(&self, id: ArrayId) -> &ArrayD<F> { todo!() }
[INFO] [stdout]     |                          ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `shape`
[INFO] [stdout]    --> src/main.rs:342:28
[INFO] [stdout]     |
[INFO] [stdout] 342 |     fn dyn_alloc<F>(&self, shape: &[usize]) -> (ArrayId, &mut ArrayD<F>) { todo!() }
[INFO] [stdout]     |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_shape`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `shape`
[INFO] [stdout]    --> src/main.rs:343:33
[INFO] [stdout]     |
[INFO] [stdout] 343 |     fn dyn_alloc_temp<F>(&self, shape: &[usize]) -> (ArrayId, &mut ArrayD<F>) { todo!() }    
[INFO] [stdout]     |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_shape`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/main.rs:136:16
[INFO] [stdout]     |
[INFO] [stdout] 136 |     fn unroll(&'a mut self, grad: Self::Grad) -> (&mut [F], &[F]) {
[INFO] [stdout]     |                ^^                                 --------  ---- the lifetimes get resolved as `'a`
[INFO] [stdout]     |                |                                  |
[INFO] [stdout]     |                |                                  the lifetimes get resolved as `'a`
[INFO] [stdout]     |                this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 136 |     fn unroll(&'a mut self, grad: Self::Grad) -> (&'a mut [F], &'a [F]) {
[INFO] [stdout]     |                                                    ++           ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/main.rs:333:35
[INFO] [stdout]     |
[INFO] [stdout] 333 |     fn store_weight<D>(&mut self, s: StaticArrayId<D>) { todo!() }
[INFO] [stdout]     |                                   ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/main.rs:334:36
[INFO] [stdout]     |
[INFO] [stdout] 334 |     fn store_grad<D, F>(&mut self, s: Array<F, D>) { todo!() }
[INFO] [stdout]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/main.rs:335:36
[INFO] [stdout]     |
[INFO] [stdout] 335 |     fn get<D: Dimension, F>(&self, id: StaticArrayId<D>) -> &Array<F, D> { todo!() }
[INFO] [stdout]     |                                    ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `shape`
[INFO] [stdout]    --> src/main.rs:336:38
[INFO] [stdout]     |
[INFO] [stdout] 336 |     fn alloc<D: Dimension, F>(&self, shape: <D as Dimension>::Pattern) -> (StaticArrayId<D>, &mut Array<F, D>) { todo!() }
[INFO] [stdout]     |                                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_shape`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `shape`
[INFO] [stdout]    --> src/main.rs:337:43
[INFO] [stdout]     |
[INFO] [stdout] 337 |     fn alloc_temp<D: Dimension, F>(&self, shape: <D as Dimension>::Pattern) -> (StaticArrayId<D>, &mut Array<F, D>) { todo!() }
[INFO] [stdout]     |                                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_shape`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/main.rs:339:36
[INFO] [stdout]     |
[INFO] [stdout] 339 |     fn dyn_store_weight(&mut self, s: ArrayId) { todo!() }
[INFO] [stdout]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/main.rs:340:37
[INFO] [stdout]     |
[INFO] [stdout] 340 |     fn dyn_store_grad<F>(&mut self, s: ArrayD<F>) { todo!() }
[INFO] [stdout]     |                                     ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/main.rs:341:26
[INFO] [stdout]     |
[INFO] [stdout] 341 |     fn dyn_get<F>(&self, id: ArrayId) -> &ArrayD<F> { todo!() }
[INFO] [stdout]     |                          ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `shape`
[INFO] [stdout]    --> src/main.rs:342:28
[INFO] [stdout]     |
[INFO] [stdout] 342 |     fn dyn_alloc<F>(&self, shape: &[usize]) -> (ArrayId, &mut ArrayD<F>) { todo!() }
[INFO] [stdout]     |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_shape`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `shape`
[INFO] [stdout]    --> src/main.rs:343:33
[INFO] [stdout]     |
[INFO] [stdout] 343 |     fn dyn_alloc_temp<F>(&self, shape: &[usize]) -> (ArrayId, &mut ArrayD<F>) { todo!() }    
[INFO] [stdout]     |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_shape`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/main.rs:136:16
[INFO] [stdout]     |
[INFO] [stdout] 136 |     fn unroll(&'a mut self, grad: Self::Grad) -> (&mut [F], &[F]) {
[INFO] [stdout]     |                ^^                                 --------  ---- the lifetimes get resolved as `'a`
[INFO] [stdout]     |                |                                  |
[INFO] [stdout]     |                |                                  the lifetimes get resolved as `'a`
[INFO] [stdout]     |                this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 136 |     fn unroll(&'a mut self, grad: Self::Grad) -> (&'a mut [F], &'a [F]) {
[INFO] [stdout]     |                                                    ++           ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.16s
[INFO] running `Command { std: "docker" "inspect" "731f5cc983aebfc07257c1d1d7e56871cc691d3d47c40c7579613b876b82aff9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "731f5cc983aebfc07257c1d1d7e56871cc691d3d47c40c7579613b876b82aff9", kill_on_drop: false }`
[INFO] [stdout] 731f5cc983aebfc07257c1d1d7e56871cc691d3d47c40c7579613b876b82aff9
