[INFO] fetching crate tinygrad 0.1.0...
[INFO] checking tinygrad-0.1.0 against try#0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9 for pr-147185
[INFO] extracting crate tinygrad 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate tinygrad 0.1.0
[INFO] finished tweaking crates.io crate tinygrad 0.1.0
[INFO] tweaked toml for crates.io crate tinygrad 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tinygrad 0.1.0 on toolchain 0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9" "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" "+0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9" "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]      Locking 7 packages to latest compatible versions
[INFO] [stderr]       Adding ndarray v0.15.6 (available: v0.16.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 54e6acb164834fdc25ddfba775c599c2820d5093afb3dd296fa2d493b31eb303
[INFO] running `Command { std: "docker" "start" "-a" "54e6acb164834fdc25ddfba775c599c2820d5093afb3dd296fa2d493b31eb303", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "54e6acb164834fdc25ddfba775c599c2820d5093afb3dd296fa2d493b31eb303", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54e6acb164834fdc25ddfba775c599c2820d5093afb3dd296fa2d493b31eb303", kill_on_drop: false }`
[INFO] [stdout] 54e6acb164834fdc25ddfba775c599c2820d5093afb3dd296fa2d493b31eb303
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1b3f14890b4dacb7ee14d82e3ff9c8a0cdefe023d1ed4a30048601eead37478d
[INFO] running `Command { std: "docker" "start" "-a" "1b3f14890b4dacb7ee14d82e3ff9c8a0cdefe023d1ed4a30048601eead37478d", kill_on_drop: false }`
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]     Checking tinygrad v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Dot` is never constructed
[INFO] [stdout]    --> src/lib.rs:231:8
[INFO] [stdout]     |
[INFO] [stdout] 231 | struct Dot;
[INFO] [stdout]     |        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Sum` is never constructed
[INFO] [stdout]    --> src/lib.rs:234:8
[INFO] [stdout]     |
[INFO] [stdout] 234 | struct Sum;
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:93:18
[INFO] [stdout]    |
[INFO] [stdout] 93 |     fn get_value(&self) -> ArrayView1<f64>;
[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] 93 |     fn get_value(&self) -> ArrayView1<'_, f64>;
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:186:18
[INFO] [stdout]     |
[INFO] [stdout] 186 |     fn get_value(&self) -> ArrayView1<f64> {
[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] 186 |     fn get_value(&self) -> ArrayView1<'_, f64> {
[INFO] [stdout]     |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Dot` is never constructed
[INFO] [stdout]    --> src/lib.rs:231:8
[INFO] [stdout]     |
[INFO] [stdout] 231 | struct Dot;
[INFO] [stdout]     |        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.90s
[INFO] [stdout] warning: struct `Sum` is never constructed
[INFO] [stdout]    --> src/lib.rs:234:8
[INFO] [stdout]     |
[INFO] [stdout] 234 | struct Sum;
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:93:18
[INFO] [stdout]    |
[INFO] [stdout] 93 |     fn get_value(&self) -> ArrayView1<f64>;
[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] 93 |     fn get_value(&self) -> ArrayView1<'_, f64>;
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:186:18
[INFO] [stdout]     |
[INFO] [stdout] 186 |     fn get_value(&self) -> ArrayView1<f64> {
[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] 186 |     fn get_value(&self) -> ArrayView1<'_, f64> {
[INFO] [stdout]     |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1b3f14890b4dacb7ee14d82e3ff9c8a0cdefe023d1ed4a30048601eead37478d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b3f14890b4dacb7ee14d82e3ff9c8a0cdefe023d1ed4a30048601eead37478d", kill_on_drop: false }`
[INFO] [stdout] 1b3f14890b4dacb7ee14d82e3ff9c8a0cdefe023d1ed4a30048601eead37478d