[INFO] fetching crate ripple 0.2.1...
[INFO] checking ripple-0.2.1 against master#39cb3386ddc6c71657418be28dbb3987eea4aa4b for pr-133536
[INFO] extracting crate ripple 0.2.1 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate ripple 0.2.1 on toolchain 39cb3386ddc6c71657418be28dbb3987eea4aa4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ripple 0.2.1
[INFO] finished tweaking crates.io crate ripple 0.2.1
[INFO] tweaked toml for crates.io crate ripple 0.2.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 20 packages to latest compatible versions
[INFO] [stderr]       Adding nalgebra v0.28.0 (available: v0.33.2)
[INFO] [stderr]       Adding simba v0.5.1 (available: v0.9.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nalgebra v0.28.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 053c3be4fc6201f6f99dec00b941ef41a047822fd2323b69c8ae9e40bccb4f5b
[INFO] running `Command { std: "docker" "start" "-a" "053c3be4fc6201f6f99dec00b941ef41a047822fd2323b69c8ae9e40bccb4f5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "053c3be4fc6201f6f99dec00b941ef41a047822fd2323b69c8ae9e40bccb4f5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "053c3be4fc6201f6f99dec00b941ef41a047822fd2323b69c8ae9e40bccb4f5b", kill_on_drop: false }`
[INFO] [stdout] 053c3be4fc6201f6f99dec00b941ef41a047822fd2323b69c8ae9e40bccb4f5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8253ce274a199463011b41ab6d6f43a5b0293f3e49a2693eecf96ca97b3c0aaa
[INFO] running `Command { std: "docker" "start" "-a" "8253ce274a199463011b41ab6d6f43a5b0293f3e49a2693eecf96ca97b3c0aaa", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.215
[INFO] [stderr]    Compiling ripple v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]    Compiling nalgebra-macros v0.1.0
[INFO] [stdout] warning: function `try_link_gsl` is never used
[INFO] [stdout]   --> build.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn try_link_gsl() {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_derive v1.0.215
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking simba v0.5.1
[INFO] [stderr]     Checking nalgebra v0.28.0
[INFO] [stdout] warning: unused import: `simba::scalar::SupersetOf`
[INFO] [stdout]  --> src/signal/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use simba::scalar::SupersetOf;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::TryFrom`
[INFO] [stdout]  --> src/signal/mod.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Range`
[INFO] [stdout]   --> src/signal/mod.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::ops::Range;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `DAUBECHIES` in this scope
[INFO] [stdout]   --> src/dwt/mod.rs:77:40
[INFO] [stdout]    |
[INFO] [stdout] 77 |     println!("{:?} {:?}", derive_diff(&DAUBECHIES), DAUB4_HIGH);
[INFO] [stdout]    |                                        ^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `simba::scalar::SupersetOf`
[INFO] [stdout]  --> src/signal/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use simba::scalar::SupersetOf;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::TryFrom`
[INFO] [stdout]  --> src/signal/mod.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Range`
[INFO] [stdout]   --> src/signal/mod.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::ops::Range;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/signal/mod.rs:60:18
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn delay(mut self, n : usize) -> Self {
[INFO] [stdout]    |                  ----^^^^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/signal/mod.rs:65:20
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn advance(mut self, n : usize) -> Self {
[INFO] [stdout]    |                    ----^^^^
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sz_compl`
[INFO] [stdout]   --> src/signal/mod.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |         let sz_compl = sz - n;
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sz_compl`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/signal/mod.rs:256:18
[INFO] [stdout]     |
[INFO] [stdout] 256 |     fn into_iter(mut self) -> Self::IntoIter {
[INFO] [stdout]     |                  ----^^^^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max`
[INFO] [stdout]    --> src/signal/mod.rs:611:13
[INFO] [stdout]     |
[INFO] [stdout] 611 |         let max = T::from(n as f32);
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_max`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `panic_on_invalid_slices` is never used
[INFO] [stdout]   --> src/lib.rs:16:15
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub(crate) fn panic_on_invalid_slices<A, B>(a : &[A], b : &[B]) {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `display_as_mat` is never used
[INFO] [stdout]    --> src/lib.rs:162:15
[INFO] [stdout]     |
[INFO] [stdout] 162 | pub(crate) fn display_as_mat(s : &[f32], ncols : usize) -> String {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `len` and `coefficients` are never used
[INFO] [stdout]    --> src/dwt/mod.rs:101:8
[INFO] [stdout]     |
[INFO] [stdout] 99  | impl Basis {
[INFO] [stdout]     | ---------- methods in this implementation
[INFO] [stdout] 100 |
[INFO] [stdout] 101 |     fn len(&self) -> usize {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 108 |     fn coefficients(&self) -> (&'static [f32; 4], &'static [f32; 4]) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dwt_level_index` is never used
[INFO] [stdout]    --> src/dwt/mod.rs:160:4
[INFO] [stdout]     |
[INFO] [stdout] 160 | fn dwt_level_index(n : usize, lvl : usize) -> Range<usize> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `verify_dwt_dimensions` is never used
[INFO] [stdout]    --> src/dwt/mod.rs:165:4
[INFO] [stdout]     |
[INFO] [stdout] 165 | fn verify_dwt_dimensions(src_len : usize, coarse_len : usize, detail_len : usize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `verify_dwt1d_dimensions` is never used
[INFO] [stdout]    --> src/dwt/mod.rs:173:4
[INFO] [stdout]     |
[INFO] [stdout] 173 | fn verify_dwt1d_dimensions(src : &[f32], coarse : &[f32], detail : &[f32]) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `verify_dwt2d_dimensions` is never used
[INFO] [stdout]    --> src/dwt/mod.rs:177:4
[INFO] [stdout]     |
[INFO] [stdout] 177 | fn verify_dwt2d_dimensions(src : &[f32], coarse : &[f32], detail_x : &[f32], detail_y : &[f32], detail_xy : &[f32]) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `index_and_prev_mut` is never used
[INFO] [stdout]    --> src/dwt/mod.rs:192:4
[INFO] [stdout]     |
[INFO] [stdout] 192 | fn index_and_prev_mut<T>(levels : &mut [T], last : usize) -> (&mut T, &mut T) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/signal/mod.rs:60:18
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn delay(mut self, n : usize) -> Self {
[INFO] [stdout]    |                  ----^^^^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/signal/mod.rs:65:20
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn advance(mut self, n : usize) -> Self {
[INFO] [stdout]    |                    ----^^^^
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sz_compl`
[INFO] [stdout]   --> src/signal/mod.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |         let sz_compl = sz - n;
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sz_compl`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/signal/mod.rs:256:18
[INFO] [stdout]     |
[INFO] [stdout] 256 |     fn into_iter(mut self) -> Self::IntoIter {
[INFO] [stdout]     |                  ----^^^^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max`
[INFO] [stdout]    --> src/signal/mod.rs:611:13
[INFO] [stdout]     |
[INFO] [stdout] 611 |         let max = T::from(n as f32);
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_max`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ripple` (lib test) due to 1 previous error; 8 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "8253ce274a199463011b41ab6d6f43a5b0293f3e49a2693eecf96ca97b3c0aaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8253ce274a199463011b41ab6d6f43a5b0293f3e49a2693eecf96ca97b3c0aaa", kill_on_drop: false }`
[INFO] [stdout] 8253ce274a199463011b41ab6d6f43a5b0293f3e49a2693eecf96ca97b3c0aaa
