[INFO] cloning repository https://github.com/DanielWilliamClarke/enrustiate
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DanielWilliamClarke/enrustiate" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDanielWilliamClarke%2Fenrustiate", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDanielWilliamClarke%2Fenrustiate'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b4f06a81ccef4001a33c5b83a6f51e47fe2bfdb1
[INFO] checking DanielWilliamClarke/enrustiate against try#f77b5bc6c7c84df104f86b0dd01d9490e3923fa8 for pr-147834
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDanielWilliamClarke%2Fenrustiate" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/DanielWilliamClarke/enrustiate
[INFO] finished tweaking git repo https://github.com/DanielWilliamClarke/enrustiate
[INFO] tweaked toml for git repo https://github.com/DanielWilliamClarke/enrustiate written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/DanielWilliamClarke/enrustiate on toolchain f77b5bc6c7c84df104f86b0dd01d9490e3923fa8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f77b5bc6c7c84df104f86b0dd01d9490e3923fa8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/DanielWilliamClarke/enrustiate 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" "+f77b5bc6c7c84df104f86b0dd01d9490e3923fa8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+f77b5bc6c7c84df104f86b0dd01d9490e3923fa8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7717950563de10f3bbc8627c3a4408f8698ee4d6bcfcd716df03108ba5f8f8fe
[INFO] running `Command { std: "docker" "start" "-a" "7717950563de10f3bbc8627c3a4408f8698ee4d6bcfcd716df03108ba5f8f8fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7717950563de10f3bbc8627c3a4408f8698ee4d6bcfcd716df03108ba5f8f8fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7717950563de10f3bbc8627c3a4408f8698ee4d6bcfcd716df03108ba5f8f8fe", kill_on_drop: false }`
[INFO] [stdout] 7717950563de10f3bbc8627c3a4408f8698ee4d6bcfcd716df03108ba5f8f8fe
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+f77b5bc6c7c84df104f86b0dd01d9490e3923fa8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c35a43ec119a4bd6eb5a307dcbe5f910168a081474fcf353c065ec9f7e7d237
[INFO] running `Command { std: "docker" "start" "-a" "8c35a43ec119a4bd6eb5a307dcbe5f910168a081474fcf353c065ec9f7e7d237", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling cc v1.0.94
[INFO] [stderr]    Compiling serde v1.0.148
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling cpal v0.13.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.81
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.13
[INFO] [stderr]    Compiling zerocopy v0.8.0-alpha.6
[INFO] [stderr]     Checking lewton v0.10.2
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]    Compiling rayon-core v1.10.1
[INFO] [stderr]    Compiling syn v1.0.104
[INFO] [stderr]     Checking colored v2.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.148
[INFO] [stderr]     Checking plotters-backend v0.3.4
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking plotters-svg v0.3.3
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking fizz_buzz v0.1.0 (/opt/rustwide/workdir/fizz_buzz)
[INFO] [stderr]     Checking number_renderer v0.1.0 (/opt/rustwide/workdir/number_renderer)
[INFO] [stderr]    Compiling syn v2.0.60
[INFO] [stderr]     Checking crossbeam-deque v0.8.2
[INFO] [stderr]    Compiling minimp3-sys v0.3.2
[INFO] [stderr]     Checking regex v1.7.0
[INFO] [stderr]     Checking plotters v0.3.4
[INFO] [stderr]     Checking criterion-plot v0.4.5
[INFO] [stderr]     Checking getrandom v0.2.14
[INFO] [stderr]     Checking parking_lot_core v0.8.6
[INFO] [stderr]     Checking nix v0.23.2
[INFO] [stderr]     Checking alsa-sys v0.3.1
[INFO] [stderr]     Checking slice-deque v0.3.0
[INFO] [stderr]     Checking num_cpus v1.14.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_core v0.9.0-alpha.1
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_chacha v0.9.0-alpha.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rand v0.9.0-alpha.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.59
[INFO] [stderr]     Checking rayon v1.6.0
[INFO] [stderr]     Checking wall_spacer v0.1.0 (/opt/rustwide/workdir/wall_spacer)
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking serde_json v1.0.89
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]  --> wall_spacer/src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::Rng;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]   --> wall_spacer/src/lib.rs:77:14
[INFO] [stdout]    |
[INFO] [stdout] 77 |         for (width, center) in widths_with_points.iter() {
[INFO] [stdout]    |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pos_chars`
[INFO] [stdout]   --> wall_spacer/src/lib.rs:85:17
[INFO] [stdout]    |
[INFO] [stdout] 85 |             let pos_chars = (display_length * pos_percentage).floor() as usize;
[INFO] [stdout]    |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pos_chars`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `WallSpacer` is never constructed
[INFO] [stdout]   --> wall_spacer/src/lib.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct WallSpacer {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `format_center_point`, `calc_gap_width`, and `calc_frame_center_points` are never used
[INFO] [stdout]    --> wall_spacer/src/lib.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout] 100 | impl WallSpacer {
[INFO] [stdout]     | --------------- methods in this implementation
[INFO] [stdout] 101 |
[INFO] [stdout] 102 |     fn format_center_point(&self, center_point: &f32) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 126 |     fn calc_gap_width(&self) -> f32 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 134 |     pub fn calc_frame_center_points(&self) -> Vec<f32> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]   --> wall_spacer/src/lib.rs:77:14
[INFO] [stdout]    |
[INFO] [stdout] 77 |         for (width, center) in widths_with_points.iter() {
[INFO] [stdout]    |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pos_chars`
[INFO] [stdout]   --> wall_spacer/src/lib.rs:85:17
[INFO] [stdout]    |
[INFO] [stdout] 85 |             let pos_chars = (display_length * pos_percentage).floor() as usize;
[INFO] [stdout]    |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pos_chars`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking thiserror v1.0.59
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking minimp3 v0.5.1
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stderr]     Checking alsa v0.6.0
[INFO] [stderr]     Checking rodio v0.13.1
[INFO] [stderr]     Checking simple_tones v0.1.0
[INFO] [stderr]     Checking tone_gen v0.1.0 (/opt/rustwide/workdir/tone_gen)
[INFO] [stdout] error[E0277]: `Line` is not an iterator
[INFO] [stdout]    --> tone_gen/src/lib.rs:350:14
[INFO] [stdout]     |
[INFO] [stdout] 350 |             .flat_map(|inner_vec| inner_vec)
[INFO] [stdout]     |              ^^^^^^^^ `Line` is not an iterator
[INFO] [stdout]     |
[INFO] [stdout] help: the trait `Iterator` is not implemented for `Line`
[INFO] [stdout]    --> tone_gen/src/lib.rs:153:1
[INFO] [stdout]     |
[INFO] [stdout] 153 | pub struct Line(pub Vec<RootString>);
[INFO] [stdout]     | ^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: required for `Line` to implement `IntoIterator`
[INFO] [stdout] note: required by a bound in `flat_map`
[INFO] [stdout]    --> /rustc/f77b5bc6c7c84df104f86b0dd01d9490e3923fa8/library/core/src/iter/traits/iterator.rs:1473:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the method `collect` exists for struct `FlatMap<std::vec::IntoIter<Line>, Line, {closure@tone_gen/src/lib.rs:350:23: 350:34}>`, but its trait bounds were not satisfied
[INFO] [stdout]    --> tone_gen/src/lib.rs:351:14
[INFO] [stdout]     |
[INFO] [stdout] 153 |   pub struct Line(pub Vec<RootString>);
[INFO] [stdout]     |   --------------- doesn't satisfy `Line: IntoIterator`
[INFO] [stdout] ...
[INFO] [stdout] 347 |           let flat = result
[INFO] [stdout]     |  ____________________-
[INFO] [stdout] 348 | |             .0
[INFO] [stdout] 349 | |             .into_iter()
[INFO] [stdout] 350 | |             .flat_map(|inner_vec| inner_vec)
[INFO] [stdout] 351 | |             .collect::<Vec<RootString>>();
[INFO] [stdout]     | |             -^^^^^^^ method cannot be called due to unsatisfied trait bounds
[INFO] [stdout]     | |_____________|
[INFO] [stdout]     |
[INFO] [stdout]     |
[INFO] [stdout]     = note: the following trait bounds were not satisfied:
[INFO] [stdout]             `Line: IntoIterator`
[INFO] [stdout]             which is required by `FlatMap<std::vec::IntoIter<Line>, Line, {closure@tone_gen/src/lib.rs:350:23: 350:34}>: Iterator`
[INFO] [stdout]             `FlatMap<std::vec::IntoIter<Line>, Line, {closure@tone_gen/src/lib.rs:350:23: 350:34}>: Iterator`
[INFO] [stdout]             which is required by `&mut FlatMap<std::vec::IntoIter<Line>, Line, {closure@tone_gen/src/lib.rs:350:23: 350:34}>: Iterator`
[INFO] [stdout] note: the trait `IntoIterator` must be implemented
[INFO] [stdout]    --> /rustc/f77b5bc6c7c84df104f86b0dd01d9490e3923fa8/library/core/src/iter/traits/collect.rs:282:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr]     Checking numbers_to_words v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `tone_gen` (lib test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused return value of `must_use` that must be used
[INFO] [stdout]   --> benches/benchmark.rs:28:21
[INFO] [stdout]    |
[INFO] [stdout] 28 |                     format!("{}", NumbersToWords::new(n.to_owned()));
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 28 |                     let _ = format!("{}", NumbersToWords::new(n.to_owned()));
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8c35a43ec119a4bd6eb5a307dcbe5f910168a081474fcf353c065ec9f7e7d237", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c35a43ec119a4bd6eb5a307dcbe5f910168a081474fcf353c065ec9f7e7d237", kill_on_drop: false }`
[INFO] [stdout] 8c35a43ec119a4bd6eb5a307dcbe5f910168a081474fcf353c065ec9f7e7d237
