[INFO] fetching crate neuralnetwork 0.1.1...
[INFO] checking neuralnetwork-0.1.1 against master#c3def263a44e07e09ae6d57abfc8650227fb4972 for pr-118833
[INFO] extracting crate neuralnetwork 0.1.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate neuralnetwork 0.1.1 on toolchain c3def263a44e07e09ae6d57abfc8650227fb4972
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c3def263a44e07e09ae6d57abfc8650227fb4972" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate neuralnetwork 0.1.1
[INFO] finished tweaking crates.io crate neuralnetwork 0.1.1
[INFO] tweaked toml for crates.io crate neuralnetwork 0.1.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c3def263a44e07e09ae6d57abfc8650227fb4972" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c3def263a44e07e09ae6d57abfc8650227fb4972" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+c3def263a44e07e09ae6d57abfc8650227fb4972" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e6588c0134cb7f420944319d01beaa3b4360977a5e82a9cc572ffb74b81511f2
[INFO] running `Command { std: "docker" "start" "-a" "e6588c0134cb7f420944319d01beaa3b4360977a5e82a9cc572ffb74b81511f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6588c0134cb7f420944319d01beaa3b4360977a5e82a9cc572ffb74b81511f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6588c0134cb7f420944319d01beaa3b4360977a5e82a9cc572ffb74b81511f2", kill_on_drop: false }`
[INFO] [stdout] e6588c0134cb7f420944319d01beaa3b4360977a5e82a9cc572ffb74b81511f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+c3def263a44e07e09ae6d57abfc8650227fb4972" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c0a054efde877dca8094637bba033e944e2816b5b94a6cff6675e02614afcf2
[INFO] running `Command { std: "docker" "start" "-a" "4c0a054efde877dca8094637bba033e944e2816b5b94a6cff6675e02614afcf2", kill_on_drop: false }`
[INFO] [stderr]     Checking neuralnetwork v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/neuralnetwork.rs:210:13
[INFO] [stdout]     |
[INFO] [stdout] 210 |             &file.read_exact(&mut buffer).ok();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 210 |             let _ = &file.read_exact(&mut buffer).ok();
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/neuralnetwork.rs:215:13
[INFO] [stdout]     |
[INFO] [stdout] 215 |             &file.read_exact(&mut buffer).ok();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 215 |             let _ = &file.read_exact(&mut buffer).ok();
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/neuralnetwork.rs:210:13
[INFO] [stdout]     |
[INFO] [stdout] 210 |             &file.read_exact(&mut buffer).ok();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 210 |             let _ = &file.read_exact(&mut buffer).ok();
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/neuralnetwork.rs:215:13
[INFO] [stdout]     |
[INFO] [stdout] 215 |             &file.read_exact(&mut buffer).ok();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 215 |             let _ = &file.read_exact(&mut buffer).ok();
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] running `Command { std: "docker" "inspect" "4c0a054efde877dca8094637bba033e944e2816b5b94a6cff6675e02614afcf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c0a054efde877dca8094637bba033e944e2816b5b94a6cff6675e02614afcf2", kill_on_drop: false }`
[INFO] [stdout] 4c0a054efde877dca8094637bba033e944e2816b5b94a6cff6675e02614afcf2
[INFO] checking neuralnetwork-0.1.1 against try#29596578cb5035fa2b7ac7fbdfea23fab38836e7 for pr-118833
[INFO] extracting crate neuralnetwork 0.1.1 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate neuralnetwork 0.1.1 on toolchain 29596578cb5035fa2b7ac7fbdfea23fab38836e7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+29596578cb5035fa2b7ac7fbdfea23fab38836e7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate neuralnetwork 0.1.1
[INFO] finished tweaking crates.io crate neuralnetwork 0.1.1
[INFO] tweaked toml for crates.io crate neuralnetwork 0.1.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+29596578cb5035fa2b7ac7fbdfea23fab38836e7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+29596578cb5035fa2b7ac7fbdfea23fab38836e7" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+29596578cb5035fa2b7ac7fbdfea23fab38836e7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9423cfd5e4864fb8658fe40010ae7ae5176fb0ca5b6b49ebb475413ef2c3224f
[INFO] running `Command { std: "docker" "start" "-a" "9423cfd5e4864fb8658fe40010ae7ae5176fb0ca5b6b49ebb475413ef2c3224f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9423cfd5e4864fb8658fe40010ae7ae5176fb0ca5b6b49ebb475413ef2c3224f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9423cfd5e4864fb8658fe40010ae7ae5176fb0ca5b6b49ebb475413ef2c3224f", kill_on_drop: false }`
[INFO] [stdout] 9423cfd5e4864fb8658fe40010ae7ae5176fb0ca5b6b49ebb475413ef2c3224f
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+29596578cb5035fa2b7ac7fbdfea23fab38836e7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b555ca56a65365d0ad713875082ce2d81eecbe9486b67a9e2b6f3206fc04de5
[INFO] running `Command { std: "docker" "start" "-a" "7b555ca56a65365d0ad713875082ce2d81eecbe9486b67a9e2b6f3206fc04de5", kill_on_drop: false }`
[INFO] [stderr]     Checking neuralnetwork v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]    --> src/neuralnetwork.rs:185:12
[INFO] [stdout]     |
[INFO] [stdout] 185 |         if self.activation_function == sigmoid {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the address of the same function can very between different codegen units
[INFO] [stdout]     = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]     = note: `#[deny(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]    --> src/neuralnetwork.rs:187:19
[INFO] [stdout]     |
[INFO] [stdout] 187 |         } else if self.activation_function == relu {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the address of the same function can very between different codegen units
[INFO] [stdout]     = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]    --> src/neuralnetwork.rs:189:19
[INFO] [stdout]     |
[INFO] [stdout] 189 |         } else if self.activation_function == tanh {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the address of the same function can very between different codegen units
[INFO] [stdout]     = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/neuralnetwork.rs:210:13
[INFO] [stdout]     |
[INFO] [stdout] 210 |             &file.read_exact(&mut buffer).ok();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 210 |             let _ = &file.read_exact(&mut buffer).ok();
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/neuralnetwork.rs:215:13
[INFO] [stdout]     |
[INFO] [stdout] 215 |             &file.read_exact(&mut buffer).ok();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 215 |             let _ = &file.read_exact(&mut buffer).ok();
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]    --> src/neuralnetwork.rs:185:12
[INFO] [stdout]     |
[INFO] [stdout] 185 |         if self.activation_function == sigmoid {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the address of the same function can very between different codegen units
[INFO] [stdout]     = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]     = note: `#[deny(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]    --> src/neuralnetwork.rs:187:19
[INFO] [stdout]     |
[INFO] [stdout] 187 |         } else if self.activation_function == relu {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the address of the same function can very between different codegen units
[INFO] [stdout]     = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]    --> src/neuralnetwork.rs:189:19
[INFO] [stdout]     |
[INFO] [stdout] 189 |         } else if self.activation_function == tanh {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the address of the same function can very between different codegen units
[INFO] [stdout]     = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/neuralnetwork.rs:210:13
[INFO] [stdout]     |
[INFO] [stdout] 210 |             &file.read_exact(&mut buffer).ok();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 210 |             let _ = &file.read_exact(&mut buffer).ok();
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/neuralnetwork.rs:215:13
[INFO] [stdout]     |
[INFO] [stdout] 215 |             &file.read_exact(&mut buffer).ok();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 215 |             let _ = &file.read_exact(&mut buffer).ok();
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `neuralnetwork` (lib test) due to 4 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `neuralnetwork` (lib) due to 4 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "7b555ca56a65365d0ad713875082ce2d81eecbe9486b67a9e2b6f3206fc04de5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b555ca56a65365d0ad713875082ce2d81eecbe9486b67a9e2b6f3206fc04de5", kill_on_drop: false }`
[INFO] [stdout] 7b555ca56a65365d0ad713875082ce2d81eecbe9486b67a9e2b6f3206fc04de5