[INFO] cloning repository https://github.com/SolarLiner/rsfdn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SolarLiner/rsfdn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSolarLiner%2Frsfdn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSolarLiner%2Frsfdn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 97459728ac99ab9b1dd64041b468dd0674f0d477
[INFO] checking SolarLiner/rsfdn against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSolarLiner%2Frsfdn" "/workspace/builds/worker-27/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-27/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SolarLiner/rsfdn on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SolarLiner/rsfdn
[INFO] finished tweaking git repo https://github.com/SolarLiner/rsfdn
[INFO] tweaked toml for git repo https://github.com/SolarLiner/rsfdn written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] crate git repo https://github.com/SolarLiner/rsfdn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ringbuf v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bcbb7acb3aaa42c93086078e3e6fc12be8bba0c0b04955aa73d478e31921e9e1
[INFO] running `Command { std: "docker" "start" "-a" "bcbb7acb3aaa42c93086078e3e6fc12be8bba0c0b04955aa73d478e31921e9e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bcbb7acb3aaa42c93086078e3e6fc12be8bba0c0b04955aa73d478e31921e9e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcbb7acb3aaa42c93086078e3e6fc12be8bba0c0b04955aa73d478e31921e9e1", kill_on_drop: false }`
[INFO] [stdout] bcbb7acb3aaa42c93086078e3e6fc12be8bba0c0b04955aa73d478e31921e9e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a3250268c1ad7d35b5d254e7eb6398e5af935fb63c274d49f02dc1ea0487edee
[INFO] running `Command { std: "docker" "start" "-a" "a3250268c1ad7d35b5d254e7eb6398e5af935fb63c274d49f02dc1ea0487edee", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling libc v0.2.78
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking ringbuf v0.2.2
[INFO] [stderr]     Checking hound v3.4.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling structopt-derive v0.4.11
[INFO] [stderr]     Checking structopt v0.3.18
[INFO] [stderr]     Checking fdn v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/lib.rs (3 fixes)
[INFO] [stdout] warning: function is never used: `copy`
[INFO] [stdout]    --> src/lib.rs:153:4
[INFO] [stdout]     |
[INFO] [stdout] 153 | fn copy<T: Clone>(to: &mut [T], from: &[T]) {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mix`
[INFO] [stdout]    --> src/lib.rs:165:4
[INFO] [stdout]     |
[INFO] [stdout] 165 | fn mix(into: &mut [f64], from: &[f64], t: f64) {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gen_matrix`
[INFO] [stdout]    --> src/lib.rs:171:4
[INFO] [stdout]     |
[INFO] [stdout] 171 | fn gen_matrix(ndelays: usize, val: f64) -> Vec<Vec<f64>> {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hadamard`
[INFO] [stdout]    --> src/lib.rs:186:4
[INFO] [stdout]     |
[INFO] [stdout] 186 | fn hadamard(logn: usize) -> Vec<Vec<isize>> {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `trunc_matrix`
[INFO] [stdout]    --> src/lib.rs:206:4
[INFO] [stdout]     |
[INFO] [stdout] 206 | fn trunc_matrix<T: Clone>(data: Vec<Vec<T>>, m: usize, n: usize) -> Vec<Vec<T>> {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/lib.rs:32:21
[INFO] [stdout]    |
[INFO] [stdout] 32 |                     self.tx.push(i);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Migrating src/bin/wavproc.rs from 2018 edition to 2021
[INFO] [stdout] warning: function is never used: `copy`
[INFO] [stdout]    --> src/lib.rs:153:4
[INFO] [stdout]     |
[INFO] [stdout] 153 | fn copy<T: Clone>(to: &mut [T], from: &[T]) {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mix`
[INFO] [stdout]    --> src/lib.rs:165:4
[INFO] [stdout]     |
[INFO] [stdout] 165 | fn mix(into: &mut [f64], from: &[f64], t: f64) {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gen_matrix`
[INFO] [stdout]    --> src/lib.rs:171:4
[INFO] [stdout]     |
[INFO] [stdout] 171 | fn gen_matrix(ndelays: usize, val: f64) -> Vec<Vec<f64>> {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/lib.rs:32:21
[INFO] [stdout]    |
[INFO] [stdout] 32 |                     self.tx.push(i);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]        Fixed src/bin/wavproc.rs (2 fixes)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.84s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking fdn v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: function is never used: `copy`
[INFO] [stdout]    --> src/lib.rs:153:4
[INFO] [stdout]     |
[INFO] [stdout] 153 | fn copy<T: Clone>(to: &mut [T], from: &[T]) {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mix`
[INFO] [stdout]    --> src/lib.rs:165:4
[INFO] [stdout]     |
[INFO] [stdout] 165 | fn mix(into: &mut [f64], from: &[f64], t: f64) {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gen_matrix`
[INFO] [stdout]    --> src/lib.rs:171:4
[INFO] [stdout]     |
[INFO] [stdout] 171 | fn gen_matrix(ndelays: usize, val: f64) -> Vec<Vec<f64>> {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/lib.rs:32:21
[INFO] [stdout]    |
[INFO] [stdout] 32 |                     self.tx.push(i);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `copy`
[INFO] [stdout]    --> src/lib.rs:153:4
[INFO] [stdout]     |
[INFO] [stdout] 153 | fn copy<T: Clone>(to: &mut [T], from: &[T]) {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mix`
[INFO] [stdout]    --> src/lib.rs:165:4
[INFO] [stdout]     |
[INFO] [stdout] 165 | fn mix(into: &mut [f64], from: &[f64], t: f64) {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gen_matrix`
[INFO] [stdout]    --> src/lib.rs:171:4
[INFO] [stdout]     |
[INFO] [stdout] 171 | fn gen_matrix(ndelays: usize, val: f64) -> Vec<Vec<f64>> {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hadamard`
[INFO] [stdout]    --> src/lib.rs:186:4
[INFO] [stdout]     |
[INFO] [stdout] 186 | fn hadamard(logn: usize) -> Vec<Vec<isize>> {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `trunc_matrix`
[INFO] [stdout]    --> src/lib.rs:206:4
[INFO] [stdout]     |
[INFO] [stdout] 206 | fn trunc_matrix<T: Clone>(data: Vec<Vec<T>>, m: usize, n: usize) -> Vec<Vec<T>> {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/lib.rs:32:21
[INFO] [stdout]    |
[INFO] [stdout] 32 |                     self.tx.push(i);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.94s
[INFO] running `Command { std: "docker" "inspect" "a3250268c1ad7d35b5d254e7eb6398e5af935fb63c274d49f02dc1ea0487edee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3250268c1ad7d35b5d254e7eb6398e5af935fb63c274d49f02dc1ea0487edee", kill_on_drop: false }`
[INFO] [stdout] a3250268c1ad7d35b5d254e7eb6398e5af935fb63c274d49f02dc1ea0487edee