[INFO] updating cached repository Sceptix/rust-backpropagation
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Sceptix/rust-backpropagation
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Sceptix/rust-backpropagation" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/Sceptix/rust-backpropagation"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/Sceptix/rust-backpropagation'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Sceptix/rust-backpropagation" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/Sceptix/rust-backpropagation"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/Sceptix/rust-backpropagation'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d98007dad805d0b966e3811cdb5230ea7b2fb2a3
[INFO] sha for GitHub repo Sceptix/rust-backpropagation: d98007dad805d0b966e3811cdb5230ea7b2fb2a3
[INFO] validating manifest of Sceptix/rust-backpropagation on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Sceptix/rust-backpropagation on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Sceptix/rust-backpropagation
[INFO] finished frobbing Sceptix/rust-backpropagation
[INFO] frobbed toml for Sceptix/rust-backpropagation written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/Sceptix/rust-backpropagation/Cargo.toml
[INFO] started frobbing Sceptix/rust-backpropagation
[INFO] finished frobbing Sceptix/rust-backpropagation
[INFO] frobbed toml for Sceptix/rust-backpropagation written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/Sceptix/rust-backpropagation/Cargo.toml
[INFO] crate Sceptix/rust-backpropagation already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Sceptix/rust-backpropagation against master#60960a260f7b5c695fd0717311d72ce62dd4eb43 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-6/master#60960a260f7b5c695fd0717311d72ce62dd4eb43:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/Sceptix/rust-backpropagation:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5fc44333bf9aef3e4dedee7e8428c97331d02f733feadc1548c5b593199a2cdb
[INFO] running `"docker" "start" "-a" "5fc44333bf9aef3e4dedee7e8428c97331d02f733feadc1548c5b593199a2cdb"`
[INFO] [stderr]     Checking getrandom v0.1.7
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking backpropagation v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:32:17
[INFO] [stderr]    |
[INFO] [stderr] 32 |             let mut inputs = &row.0;
[INFO] [stderr]    |                 ----^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:33:17
[INFO] [stderr]    |
[INFO] [stderr] 33 |             let mut wantedoutputs = &row.1;
[INFO] [stderr]    |                 ----^^^^^^^^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:99:13
[INFO] [stderr]    |
[INFO] [stderr] 99 |         let mut node: Node = Node {
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:115:17
[INFO] [stderr]     |
[INFO] [stderr] 115 |             let mut activation = activate_neuron(&data_in, neuron);
[INFO] [stderr]     |                 ----^^^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function `transferDeriv` should have a snake case name
[INFO] [stderr]    --> src/lib.rs:136:4
[INFO] [stderr]     |
[INFO] [stderr] 136 | fn transferDeriv(y: f64) -> f64 {
[INFO] [stderr]     |    ^^^^^^^^^^^^^ help: convert the identifier to snake case: `transfer_deriv`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:32:17
[INFO] [stderr]    |
[INFO] [stderr] 32 |             let mut inputs = &row.0;
[INFO] [stderr]    |                 ----^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:33:17
[INFO] [stderr]    |
[INFO] [stderr] 33 |             let mut wantedoutputs = &row.1;
[INFO] [stderr]    |                 ----^^^^^^^^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:99:13
[INFO] [stderr]    |
[INFO] [stderr] 99 |         let mut node: Node = Node {
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:115:17
[INFO] [stderr]     |
[INFO] [stderr] 115 |             let mut activation = activate_neuron(&data_in, neuron);
[INFO] [stderr]     |                 ----^^^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function `transferDeriv` should have a snake case name
[INFO] [stderr]    --> src/lib.rs:136:4
[INFO] [stderr]     |
[INFO] [stderr] 136 | fn transferDeriv(y: f64) -> f64 {
[INFO] [stderr]     |    ^^^^^^^^^^^^^ help: convert the identifier to snake case: `transfer_deriv`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:26:13
[INFO] [stderr]    |
[INFO] [stderr] 26 |         let mut inputs = &row.0;
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let mut wantedoutputs = &row.1;
[INFO] [stderr]    |             ----^^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:26:13
[INFO] [stderr]    |
[INFO] [stderr] 26 |         let mut inputs = &row.0;
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let mut wantedoutputs = &row.1;
[INFO] [stderr]    |             ----^^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.24s
[INFO] running `"docker" "inspect" "5fc44333bf9aef3e4dedee7e8428c97331d02f733feadc1548c5b593199a2cdb"`
[INFO] running `"docker" "rm" "-f" "5fc44333bf9aef3e4dedee7e8428c97331d02f733feadc1548c5b593199a2cdb"`
[INFO] [stdout] 5fc44333bf9aef3e4dedee7e8428c97331d02f733feadc1548c5b593199a2cdb