[INFO] cloning repository https://github.com/k-h-m/ginger
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/k-h-m/ginger" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fk-h-m%2Fginger"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fk-h-m%2Fginger'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ccee86979eb525022f44bdc8a70d232d9c3740b1
[INFO] checking k-h-m/ginger against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fk-h-m%2Fginger" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/k-h-m/ginger on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/k-h-m/ginger
[INFO] finished tweaking git repo https://github.com/k-h-m/ginger
[INFO] tweaked toml for git repo https://github.com/k-h-m/ginger written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/k-h-m/ginger already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/k-h-m/poppler-glib-rs`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1c3c966f1556f3cd7129e671442b89445bae56374ce9e7fb1d1309c53fcf72a0
[INFO] running `"docker" "start" "-a" "1c3c966f1556f3cd7129e671442b89445bae56374ce9e7fb1d1309c53fcf72a0"`
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking same-file v1.0.4
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking svg v0.5.11
[INFO] [stderr]     Checking walkdir v2.2.7
[INFO] [stderr]    Compiling glib-sys v0.6.0
[INFO] [stderr]    Compiling gobject-sys v0.6.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking glib v0.5.0
[INFO] [stderr]     Checking poppler v0.1.0 (https://github.com/k-h-m/poppler-glib-rs#cd863c2a)
[INFO] [stderr]     Checking ginger v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: method is never used: `width`
[INFO] [stderr]   --> src/similar.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn width(&self) -> f64 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `length`
[INFO] [stderr]   --> src/similar.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn length(&self) -> f64 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `DOI`
[INFO] [stderr]   --> src/item.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     DOI(String),
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `width`
[INFO] [stderr]   --> src/dump_svg.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     fn width(&self) -> f64 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `dist`
[INFO] [stderr]   --> src/dump_svg.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 |     fn dist(&self, other: &BBox) -> f64 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `merge_boxes`
[INFO] [stderr]    --> src/dump_svg.rs:135:4
[INFO] [stderr]     |
[INFO] [stderr] 135 | fn merge_boxes<'a, I: Iterator<Item = &'a BBox>>(mut boxes: I) -> BBox {
[INFO] [stderr]     |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `min`
[INFO] [stderr]    --> src/dump_svg.rs:156:5
[INFO] [stderr]     |
[INFO] [stderr] 156 |     min: Vec<usize>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `create_poset`
[INFO] [stderr]    --> src/dump_svg.rs:161:1
[INFO] [stderr]     |
[INFO] [stderr] 161 | fn create_poset(x: &[TT]) -> Poset {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `chain_iter`
[INFO] [stderr]    --> src/dump_svg.rs:198:1
[INFO] [stderr]     |
[INFO] [stderr] 198 | fn chain_iter<'a>(&'a self) -> ChainIterator<'a> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `split_by_font`
[INFO] [stderr]    --> src/dump_svg.rs:281:4
[INFO] [stderr]     |
[INFO] [stderr] 281 | fn split_by_font<'a>(x: &[TT], c: &'a[usize]) -> Vec<&'a[usize]> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `split_by_distance`
[INFO] [stderr]    --> src/dump_svg.rs:299:4
[INFO] [stderr]     |
[INFO] [stderr] 299 | fn split_by_distance<'a>(x: &[TT], c: &'a[usize]) -> Vec<&'a[usize]> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `merge_tt`
[INFO] [stderr]    --> src/dump_svg.rs:320:4
[INFO] [stderr]     |
[INFO] [stderr] 320 | fn merge_tt(t: &[TT], c: &[usize]) -> TT {
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_succ`
[INFO] [stderr]    --> src/dump_svg.rs:354:4
[INFO] [stderr]     |
[INFO] [stderr] 354 | fn is_succ(t: &[TT], x1: &TT, x2: &TT) -> bool {
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_pred`
[INFO] [stderr]    --> src/dump_svg.rs:366:4
[INFO] [stderr]     |
[INFO] [stderr] 366 | fn is_pred(t: &[TT], x1: &TT, x2: &TT) -> bool {
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `width`
[INFO] [stderr]   --> src/dump_svg.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     fn width(&self) -> f64 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `dist`
[INFO] [stderr]   --> src/dump_svg.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 |     fn dist(&self, other: &BBox) -> f64 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ISBN`
[INFO] [stderr]   --> src/item.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     ISBN(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ARXIV`
[INFO] [stderr]   --> src/item.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     ARXIV(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `CITEER`
[INFO] [stderr]   --> src/item.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     CITEER(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `HAL`
[INFO] [stderr]   --> src/item.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     HAL(String),
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_authors`
[INFO] [stderr]  --> src/named.rs:9:4
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn get_authors(s: &str) -> Vec<item::Author> {
[INFO] [stderr]   |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_publisher`
[INFO] [stderr]   --> src/named.rs:24:4
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn get_publisher(_s: &str) -> (Option<String>,Option<u32>) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_item`
[INFO] [stderr]   --> src/named.rs:28:4
[INFO] [stderr]    |
[INFO] [stderr] 28 | fn get_item(s: &str) -> Option<item::Item>{
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `named`
[INFO] [stderr]   --> src/named.rs:43:4
[INFO] [stderr]    |
[INFO] [stderr] 43 | fn named(fname: &str) {
[INFO] [stderr]    |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `width`
[INFO] [stderr]   --> src/similar.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn width(&self) -> f64 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `length`
[INFO] [stderr]   --> src/similar.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn length(&self) -> f64 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `merge_boxes`
[INFO] [stderr]    --> src/dump_svg.rs:135:4
[INFO] [stderr]     |
[INFO] [stderr] 135 | fn merge_boxes<'a, I: Iterator<Item = &'a BBox>>(mut boxes: I) -> BBox {
[INFO] [stderr]     |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `min`
[INFO] [stderr]    --> src/dump_svg.rs:156:5
[INFO] [stderr]     |
[INFO] [stderr] 156 |     min: Vec<usize>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `create_poset`
[INFO] [stderr]    --> src/dump_svg.rs:161:1
[INFO] [stderr]     |
[INFO] [stderr] 161 | fn create_poset(x: &[TT]) -> Poset {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `chain_iter`
[INFO] [stderr]    --> src/dump_svg.rs:198:1
[INFO] [stderr]     |
[INFO] [stderr] 198 | fn chain_iter<'a>(&'a self) -> ChainIterator<'a> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `split_by_font`
[INFO] [stderr]    --> src/dump_svg.rs:281:4
[INFO] [stderr]     |
[INFO] [stderr] 281 | fn split_by_font<'a>(x: &[TT], c: &'a[usize]) -> Vec<&'a[usize]> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `split_by_distance`
[INFO] [stderr]    --> src/dump_svg.rs:299:4
[INFO] [stderr]     |
[INFO] [stderr] 299 | fn split_by_distance<'a>(x: &[TT], c: &'a[usize]) -> Vec<&'a[usize]> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `merge_tt`
[INFO] [stderr]    --> src/dump_svg.rs:320:4
[INFO] [stderr]     |
[INFO] [stderr] 320 | fn merge_tt(t: &[TT], c: &[usize]) -> TT {
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_succ`
[INFO] [stderr]    --> src/dump_svg.rs:354:4
[INFO] [stderr]     |
[INFO] [stderr] 354 | fn is_succ(t: &[TT], x1: &TT, x2: &TT) -> bool {
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_pred`
[INFO] [stderr]    --> src/dump_svg.rs:366:4
[INFO] [stderr]     |
[INFO] [stderr] 366 | fn is_pred(t: &[TT], x1: &TT, x2: &TT) -> bool {
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `DOI`
[INFO] [stderr]   --> src/item.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     DOI(String),
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `DOI`
[INFO] [stderr]   --> src/item.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     DOI(String),
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ISBN`
[INFO] [stderr]   --> src/item.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     ISBN(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ARXIV`
[INFO] [stderr]   --> src/item.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     ARXIV(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `CITEER`
[INFO] [stderr]   --> src/item.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     CITEER(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `HAL`
[INFO] [stderr]   --> src/item.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     HAL(String),
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `ITEM_TYPES`
[INFO] [stderr]   --> src/item.rs:35:1
[INFO] [stderr]    |
[INFO] [stderr] 35 | / static ITEM_TYPES: [(ItemType,&str); 4] = [(ItemType::Unknown, "unknown: "), (ItemType::Named, "named: "),
[INFO] [stderr] 36 | |                             (ItemType::Arxiv, "arxiv: "), (ItemType::Springer, "springer: ")];
[INFO] [stderr]    | |______________________________________________________________________________________________^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ISBN`
[INFO] [stderr]   --> src/item.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     ISBN(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `item_type`
[INFO] [stderr]   --> src/item.rs:38:8
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub fn item_type(s: &str) -> Option<(&ItemType,&str)> {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]   --> src/ginger.rs:84:4
[INFO] [stderr]    |
[INFO] [stderr] 84 | fn run(filename: &str) -> Result<(), glib::error::Error> {
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ARXIV`
[INFO] [stderr]   --> src/item.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     ARXIV(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `CITEER`
[INFO] [stderr]   --> src/item.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     CITEER(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `HAL`
[INFO] [stderr]   --> src/item.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     HAL(String),
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `ITEM_TYPES`
[INFO] [stderr]   --> src/item.rs:35:1
[INFO] [stderr]    |
[INFO] [stderr] 35 | / static ITEM_TYPES: [(ItemType,&str); 4] = [(ItemType::Unknown, "unknown: "), (ItemType::Named, "named: "),
[INFO] [stderr] 36 | |                             (ItemType::Arxiv, "arxiv: "), (ItemType::Springer, "springer: ")];
[INFO] [stderr]    | |______________________________________________________________________________________________^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `item_type`
[INFO] [stderr]   --> src/item.rs:38:8
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub fn item_type(s: &str) -> Option<(&ItemType,&str)> {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]   --> src/ginger.rs:84:4
[INFO] [stderr]    |
[INFO] [stderr] 84 | fn run(filename: &str) -> Result<(), glib::error::Error> {
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/zuzu.rs:287:17
[INFO] [stderr]     |
[INFO] [stderr] 287 |             let mut chain = vec![i];
[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: variant is never constructed: `DOI`
[INFO] [stderr]   --> src/item.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     DOI(String),
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ISBN`
[INFO] [stderr]   --> src/item.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     ISBN(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ARXIV`
[INFO] [stderr]   --> src/item.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     ARXIV(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `CITEER`
[INFO] [stderr]   --> src/item.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     CITEER(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `HAL`
[INFO] [stderr]   --> src/item.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     HAL(String),
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_authors`
[INFO] [stderr]  --> src/named.rs:9:4
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn get_authors(s: &str) -> Vec<item::Author> {
[INFO] [stderr]   |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_publisher`
[INFO] [stderr]   --> src/named.rs:24:4
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn get_publisher(_s: &str) -> (Option<String>,Option<u32>) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_item`
[INFO] [stderr]   --> src/named.rs:28:4
[INFO] [stderr]    |
[INFO] [stderr] 28 | fn get_item(s: &str) -> Option<item::Item>{
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `named`
[INFO] [stderr]   --> src/named.rs:43:4
[INFO] [stderr]    |
[INFO] [stderr] 43 | fn named(fname: &str) {
[INFO] [stderr]    |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `length`
[INFO] [stderr]   --> src/zuzu.rs:62:5
[INFO] [stderr]    |
[INFO] [stderr] 62 |     fn length(&self) -> f64 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `max`
[INFO] [stderr]    --> src/zuzu.rs:159:5
[INFO] [stderr]     |
[INFO] [stderr] 159 |     max: Vec<usize>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `shrink_poset`
[INFO] [stderr]    --> src/zuzu.rs:280:1
[INFO] [stderr]     |
[INFO] [stderr] 280 | fn shrink_poset(&self, x: &[TT]) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `chain_fn`
[INFO] [stderr]    --> src/zuzu.rs:340:4
[INFO] [stderr]     |
[INFO] [stderr] 340 | fn chain_fn(c: &[usize], x: &[TT], _dt: &mut[usize]) {
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `check_iterator`
[INFO] [stderr]    --> src/zuzu.rs:424:4
[INFO] [stderr]     |
[INFO] [stderr] 424 | fn check_iterator(x: &[TT]) -> bool {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `zuzu`
[INFO] [stderr]    --> src/zuzu.rs:502:4
[INFO] [stderr]     |
[INFO] [stderr] 502 | fn zuzu(x: &[TT]) -> bool {
[INFO] [stderr]     |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/zuzu.rs:287:17
[INFO] [stderr]     |
[INFO] [stderr] 287 |             let mut chain = vec![i];
[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: method is never used: `length`
[INFO] [stderr]   --> src/zuzu.rs:62:5
[INFO] [stderr]    |
[INFO] [stderr] 62 |     fn length(&self) -> f64 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `max`
[INFO] [stderr]    --> src/zuzu.rs:159:5
[INFO] [stderr]     |
[INFO] [stderr] 159 |     max: Vec<usize>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `shrink_poset`
[INFO] [stderr]    --> src/zuzu.rs:280:1
[INFO] [stderr]     |
[INFO] [stderr] 280 | fn shrink_poset(&self, x: &[TT]) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `chain_fn`
[INFO] [stderr]    --> src/zuzu.rs:340:4
[INFO] [stderr]     |
[INFO] [stderr] 340 | fn chain_fn(c: &[usize], x: &[TT], _dt: &mut[usize]) {
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `check_iterator`
[INFO] [stderr]    --> src/zuzu.rs:424:4
[INFO] [stderr]     |
[INFO] [stderr] 424 | fn check_iterator(x: &[TT]) -> bool {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `zuzu`
[INFO] [stderr]    --> src/zuzu.rs:502:4
[INFO] [stderr]     |
[INFO] [stderr] 502 | fn zuzu(x: &[TT]) -> bool {
[INFO] [stderr]     |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.33s
[INFO] running `"docker" "inspect" "1c3c966f1556f3cd7129e671442b89445bae56374ce9e7fb1d1309c53fcf72a0"`
[INFO] running `"docker" "rm" "-f" "1c3c966f1556f3cd7129e671442b89445bae56374ce9e7fb1d1309c53fcf72a0"`
[INFO] [stdout] 1c3c966f1556f3cd7129e671442b89445bae56374ce9e7fb1d1309c53fcf72a0