[INFO] fetching crate intricate 0.7.0... [INFO] checking intricate-0.7.0 against master#18a6d911caba59605eb03db1452848a85d2e5879 for pr-112743 [INFO] extracting crate intricate 0.7.0 into /workspace/builds/worker-2-tc1/source [INFO] validating manifest of crates.io crate intricate 0.7.0 on toolchain 18a6d911caba59605eb03db1452848a85d2e5879 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+18a6d911caba59605eb03db1452848a85d2e5879" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate intricate 0.7.0 [INFO] removed 2 missing examples [INFO] finished tweaking crates.io crate intricate 0.7.0 [INFO] tweaked toml for crates.io crate intricate 0.7.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate crates.io crate intricate 0.7.0 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" "+18a6d911caba59605eb03db1452848a85d2e5879" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded indicatif v0.17.0 [INFO] [stderr] Downloaded console v0.15.1 [INFO] [stderr] Downloaded ipnet v2.7.0 [INFO] [stderr] Downloaded savefile v0.10.1 [INFO] [stderr] Downloaded savefile-derive v0.10.1 [INFO] [stderr] Downloaded intricate-macros v0.7.0 [INFO] [stderr] Downloaded opencl-sys v0.2.2 [INFO] [stderr] Downloaded cl3 v0.8.1 [INFO] [stderr] Downloaded opencl3 v0.8.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+18a6d911caba59605eb03db1452848a85d2e5879" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e8def6c99c8f090a9fa1a95ec295469eaf750d7b9a5da571dfd876763617a3aa [INFO] running `Command { std: "docker" "start" "-a" "e8def6c99c8f090a9fa1a95ec295469eaf750d7b9a5da571dfd876763617a3aa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e8def6c99c8f090a9fa1a95ec295469eaf750d7b9a5da571dfd876763617a3aa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e8def6c99c8f090a9fa1a95ec295469eaf750d7b9a5da571dfd876763617a3aa", kill_on_drop: false }` [INFO] [stdout] e8def6c99c8f090a9fa1a95ec295469eaf750d7b9a5da571dfd876763617a3aa [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+18a6d911caba59605eb03db1452848a85d2e5879" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4f963676c4258ba532e5e2a01b770d9d196c36d2ef671b25dbd14a6365ce7a0e [INFO] running `Command { std: "docker" "start" "-a" "4f963676c4258ba532e5e2a01b770d9d196c36d2ef671b25dbd14a6365ce7a0e", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.132 [INFO] [stderr] Checking once_cell v1.13.1 [INFO] [stderr] Compiling proc-macro2 v1.0.43 [INFO] [stderr] Compiling pkg-config v0.3.26 [INFO] [stderr] Compiling quote v1.0.21 [INFO] [stderr] Compiling unicode-ident v1.0.3 [INFO] [stderr] Checking bytes v1.3.0 [INFO] [stderr] Compiling futures-core v0.3.25 [INFO] [stderr] Compiling syn v1.0.99 [INFO] [stderr] Compiling tokio v1.23.0 [INFO] [stderr] Compiling slab v0.4.7 [INFO] [stderr] Compiling indexmap v1.9.1 [INFO] [stderr] Compiling crossbeam-utils v0.8.11 [INFO] [stderr] Compiling futures-task v0.3.25 [INFO] [stderr] Checking tracing-core v0.1.30 [INFO] [stderr] Compiling futures-util v0.3.25 [INFO] [stderr] Compiling openssl v0.10.45 [INFO] [stderr] Compiling openssl-sys v0.9.80 [INFO] [stderr] Checking tracing v0.1.37 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking mio v0.8.5 [INFO] [stderr] Checking socket2 v0.4.7 [INFO] [stderr] Checking http v0.2.8 [INFO] [stderr] Compiling crossbeam-epoch v0.9.10 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Checking futures-sink v0.3.25 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Checking futures-io v0.3.25 [INFO] [stderr] Compiling futures-channel v0.3.25 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling native-tls v0.2.11 [INFO] [stderr] Checking getrandom v0.2.7 [INFO] [stderr] Compiling libm v0.2.6 [INFO] [stderr] Compiling serde v1.0.151 [INFO] [stderr] Checking try-lock v0.2.3 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling parking_lot_core v0.9.3 [INFO] [stderr] Compiling opencl-sys v0.2.2 [INFO] [stderr] Compiling rayon-core v1.9.3 [INFO] [stderr] Checking want v0.3.0 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking http-body v0.4.5 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling encoding_rs v0.8.31 [INFO] [stderr] Checking smallvec v1.9.0 [INFO] [stderr] Checking tower-service v0.3.2 [INFO] [stderr] Checking unicode-bidi v0.3.8 [INFO] [stderr] Compiling savefile v0.10.1 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking idna v0.3.0 [INFO] [stderr] Checking crossbeam-deque v0.8.2 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Checking crossbeam-channel v0.5.6 [INFO] [stderr] Checking terminal_size v0.1.17 [INFO] [stderr] Compiling rayon v1.5.3 [INFO] [stderr] Checking unicode-width v0.1.9 [INFO] [stderr] Checking console v0.15.1 [INFO] [stderr] Checking url v2.3.1 [INFO] [stderr] Checking cl3 v0.8.1 [INFO] [stderr] Compiling syn v0.14.9 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Checking mime v0.3.16 [INFO] [stderr] Checking either v1.7.0 [INFO] [stderr] Checking ipnet v2.7.0 [INFO] [stderr] Checking arrayvec v0.5.2 [INFO] [stderr] Checking bit-vec v0.6.3 [INFO] [stderr] Checking number_prefix v0.4.0 [INFO] [stderr] Checking rand_distr v0.4.3 [INFO] [stderr] Checking indicatif v0.17.0 [INFO] [stderr] Checking tokio-util v0.7.4 [INFO] [stderr] Checking opencl3 v0.8.1 [INFO] [stderr] Checking h2 v0.3.15 [INFO] [stderr] Compiling openssl-macros v0.1.0 [INFO] [stderr] Compiling intricate-macros v0.7.0 [INFO] [stderr] Compiling savefile-derive v0.10.1 [INFO] [stderr] Checking serde_urlencoded v0.7.1 [INFO] [stderr] Checking hyper v0.14.23 [INFO] [stderr] Checking tokio-native-tls v0.3.0 [INFO] [stderr] Checking hyper-tls v0.5.0 [INFO] [stderr] Checking reqwest v0.11.13 [INFO] [stderr] Checking intricate v0.7.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/layers/activations/softmax.rs:134:13 [INFO] [stdout] | [INFO] [stdout] 134 | drop(self.last_inputs_buffer.as_ref().unwrap()); [INFO] [stdout] | ^^^^^-----------------------------------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&Buffer` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/layers/activations/softmax.rs:138:13 [INFO] [stdout] | [INFO] [stdout] 138 | drop(self.last_outputs_buffer.as_ref().unwrap()); [INFO] [stdout] | ^^^^^------------------------------------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&Buffer` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/layers/conv2d.rs:205:13 [INFO] [stdout] | [INFO] [stdout] 205 | drop(self.weights_buff.as_ref().unwrap()); [INFO] [stdout] | ^^^^^-----------------------------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&Buffer` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/layers/conv2d.rs:209:13 [INFO] [stdout] | [INFO] [stdout] 209 | drop(self.last_inputs_buffer.as_ref().unwrap()); [INFO] [stdout] | ^^^^^-----------------------------------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&Buffer` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/layers/conv2d.rs:213:13 [INFO] [stdout] | [INFO] [stdout] 213 | drop(self.last_outputs_buffer.as_ref().unwrap()); [INFO] [stdout] | ^^^^^------------------------------------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&Buffer` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/layers/dense.rs:209:13 [INFO] [stdout] | [INFO] [stdout] 209 | drop(self.weights_buffer.as_ref().unwrap()); [INFO] [stdout] | ^^^^^-------------------------------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&Buffer` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/layers/dense.rs:213:13 [INFO] [stdout] | [INFO] [stdout] 213 | drop(self.biases_buffer.as_ref().unwrap()); [INFO] [stdout] | ^^^^^------------------------------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&Buffer` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/layers/dense.rs:217:13 [INFO] [stdout] | [INFO] [stdout] 217 | drop(self.last_inputs_buffer.as_ref().unwrap()); [INFO] [stdout] | ^^^^^-----------------------------------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&Buffer` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/layers/dense.rs:221:13 [INFO] [stdout] | [INFO] [stdout] 221 | drop(self.last_outputs_buffer.as_ref().unwrap()); [INFO] [stdout] | ^^^^^------------------------------------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&Buffer` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Sigmoid` [INFO] [stdout] --> examples/mnist/main.rs:4:38 [INFO] [stdout] | [INFO] [stdout] 4 | activations::{ReLU, SoftMax, Sigmoid}, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Layer` [INFO] [stdout] --> examples/mnist/main.rs:5:24 [INFO] [stdout] | [INFO] [stdout] 5 | Conv2D, Dense, Layer, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/layers/activations/softmax.rs:134:13 [INFO] [stdout] | [INFO] [stdout] 134 | drop(self.last_inputs_buffer.as_ref().unwrap()); [INFO] [stdout] | ^^^^^-----------------------------------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&Buffer` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/layers/activations/softmax.rs:138:13 [INFO] [stdout] | [INFO] [stdout] 138 | drop(self.last_outputs_buffer.as_ref().unwrap()); [INFO] [stdout] | ^^^^^------------------------------------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&Buffer` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/layers/conv2d.rs:205:13 [INFO] [stdout] | [INFO] [stdout] 205 | drop(self.weights_buff.as_ref().unwrap()); [INFO] [stdout] | ^^^^^-----------------------------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&Buffer` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/layers/conv2d.rs:209:13 [INFO] [stdout] | [INFO] [stdout] 209 | drop(self.last_inputs_buffer.as_ref().unwrap()); [INFO] [stdout] | ^^^^^-----------------------------------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&Buffer` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/layers/conv2d.rs:213:13 [INFO] [stdout] | [INFO] [stdout] 213 | drop(self.last_outputs_buffer.as_ref().unwrap()); [INFO] [stdout] | ^^^^^------------------------------------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&Buffer` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/layers/dense.rs:209:13 [INFO] [stdout] | [INFO] [stdout] 209 | drop(self.weights_buffer.as_ref().unwrap()); [INFO] [stdout] | ^^^^^-------------------------------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&Buffer` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/layers/dense.rs:213:13 [INFO] [stdout] | [INFO] [stdout] 213 | drop(self.biases_buffer.as_ref().unwrap()); [INFO] [stdout] | ^^^^^------------------------------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&Buffer` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/layers/dense.rs:217:13 [INFO] [stdout] | [INFO] [stdout] 217 | drop(self.last_inputs_buffer.as_ref().unwrap()); [INFO] [stdout] | ^^^^^-----------------------------------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&Buffer` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/layers/dense.rs:221:13 [INFO] [stdout] | [INFO] [stdout] 221 | drop(self.last_outputs_buffer.as_ref().unwrap()); [INFO] [stdout] | ^^^^^------------------------------------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&Buffer` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 10.09s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.14.9 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] running `Command { std: "docker" "inspect" "4f963676c4258ba532e5e2a01b770d9d196c36d2ef671b25dbd14a6365ce7a0e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4f963676c4258ba532e5e2a01b770d9d196c36d2ef671b25dbd14a6365ce7a0e", kill_on_drop: false }` [INFO] [stdout] 4f963676c4258ba532e5e2a01b770d9d196c36d2ef671b25dbd14a6365ce7a0e