[INFO] cloning repository https://github.com/KeKsBoTer/disco
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KeKsBoTer/disco" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKeKsBoTer%2Fdisco", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKeKsBoTer%2Fdisco'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 616a3ee688c3436feff299b555f1adb64db13901
[INFO] checking KeKsBoTer/disco against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKeKsBoTer%2Fdisco" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KeKsBoTer/disco on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KeKsBoTer/disco
[INFO] finished tweaking git repo https://github.com/KeKsBoTer/disco
[INFO] tweaked toml for git repo https://github.com/KeKsBoTer/disco written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/KeKsBoTer/disco 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded png v0.16.3
[INFO] [stderr]   Downloaded tobj v1.0.0
[INFO] [stderr]   Downloaded image v0.23.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e9f7eb436e8a457e4333ba2eb570c2092a3bcade0e50890810f2a89162098c73
[INFO] running `Command { std: "docker" "start" "-a" "e9f7eb436e8a457e4333ba2eb570c2092a3bcade0e50890810f2a89162098c73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9f7eb436e8a457e4333ba2eb570c2092a3bcade0e50890810f2a89162098c73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9f7eb436e8a457e4333ba2eb570c2092a3bcade0e50890810f2a89162098c73", kill_on_drop: false }`
[INFO] [stdout] e9f7eb436e8a457e4333ba2eb570c2092a3bcade0e50890810f2a89162098c73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 810c16a3298a7641a13e066aa4d6c7d32f3adcb6614d3c089b8bc19a1df54f1f
[INFO] running `Command { std: "docker" "start" "-a" "810c16a3298a7641a13e066aa4d6c7d32f3adcb6614d3c089b8bc19a1df54f1f", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling cgmath v0.17.0
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking bytemuck v1.2.0
[INFO] [stderr]     Checking tobj v1.0.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking miniz_oxide v0.3.6
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
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[INFO] [stderr]     Checking crossbeam-queue v0.2.1
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[INFO] [stderr]     Checking jpeg-decoder v0.1.18
[INFO] [stderr]     Checking image v0.23.4
[INFO] [stderr]     Checking disco v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::cmp::Ordering`
[INFO] [stdout]  --> src/model.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::cmp::Ordering;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:285:6
[INFO] [stdout]     |
[INFO] [stdout] 285 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::Ordering`
[INFO] [stdout]  --> src/model.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::cmp::Ordering;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:285:6
[INFO] [stdout]     |
[INFO] [stdout] 285 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     for i in 0..8 {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/main.rs:154:34
[INFO] [stdout]     |
[INFO] [stdout] 154 |                 .min_by_key(|(p, n)| {
[INFO] [stdout]     |                                  ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n1`
[INFO] [stdout]    --> src/main.rs:291:57
[INFO] [stdout]     |
[INFO] [stdout] 291 |                 v.iter().enumerate().map(move |(i, (p1, n1))| {
[INFO] [stdout]     |                                                         ^^ help: if this is intentional, prefix it with an underscore: `_n1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `connect_lines` is never used
[INFO] [stdout]   --> src/main.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn connect_lines(lines: &Vec<Polygon>) -> Vec<Polygon> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main_slice` is never used
[INFO] [stdout]    --> src/main.rs:309:4
[INFO] [stdout]     |
[INFO] [stdout] 309 | fn main_slice() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_polygon` is never used
[INFO] [stdout]    --> src/main.rs:378:4
[INFO] [stdout]     |
[INFO] [stdout] 378 | fn to_polygon(points: &Vec<Vertex>) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_line` is never used
[INFO] [stdout]    --> src/main.rs:386:4
[INFO] [stdout]     |
[INFO] [stdout] 386 | fn to_line(p: Vertex, v: Normal) -> String {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Slice` is never used
[INFO] [stdout]  --> src/model.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub type Slice = Vec<Polygon>;
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Model` is never constructed
[INFO] [stdout]   --> src/model.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Model {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Model` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `load` and `slice` are never used
[INFO] [stdout]   --> src/model.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl Model {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 21 |     // loads model from file
[INFO] [stdout] 22 |     pub fn load(file: &str) -> Model {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |     pub fn slice(&self, y: f32) -> Option<Slice> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `to_indices` and `union` are never used
[INFO] [stdout]   --> src/polygons.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl Polygon {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] 44 |     pub fn to_indices(&self, vertices: &mut Vec<Vertex>) -> IndexPolygon {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 72 |     pub fn union(&self, other: Polygon) -> Vec<Polygon> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `IndexPolygon` is never used
[INFO] [stdout]    --> src/polygons.rs:113:10
[INFO] [stdout]     |
[INFO] [stdout] 113 | pub type IndexPolygon = AbstractPolygon<usize>;
[INFO] [stdout]     |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `to_polygon` and `join` are never used
[INFO] [stdout]    --> src/polygons.rs:116:12
[INFO] [stdout]     |
[INFO] [stdout] 115 | impl IndexPolygon {
[INFO] [stdout]     | ----------------- methods in this implementation
[INFO] [stdout] 116 |     pub fn to_polygon(&self, vertices: Vec<Vertex>) -> Polygon {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 127 |     pub fn join(&self, l2: IndexPolygon) -> Option<IndexPolygon> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     for i in 0..8 {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/main.rs:154:34
[INFO] [stdout]     |
[INFO] [stdout] 154 |                 .min_by_key(|(p, n)| {
[INFO] [stdout]     |                                  ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n1`
[INFO] [stdout]    --> src/main.rs:291:57
[INFO] [stdout]     |
[INFO] [stdout] 291 |                 v.iter().enumerate().map(move |(i, (p1, n1))| {
[INFO] [stdout]     |                                                         ^^ help: if this is intentional, prefix it with an underscore: `_n1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `connect_lines` is never used
[INFO] [stdout]   --> src/main.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn connect_lines(lines: &Vec<Polygon>) -> Vec<Polygon> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main_slice` is never used
[INFO] [stdout]    --> src/main.rs:309:4
[INFO] [stdout]     |
[INFO] [stdout] 309 | fn main_slice() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_polygon` is never used
[INFO] [stdout]    --> src/main.rs:378:4
[INFO] [stdout]     |
[INFO] [stdout] 378 | fn to_polygon(points: &Vec<Vertex>) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_line` is never used
[INFO] [stdout]    --> src/main.rs:386:4
[INFO] [stdout]     |
[INFO] [stdout] 386 | fn to_line(p: Vertex, v: Normal) -> String {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Slice` is never used
[INFO] [stdout]  --> src/model.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub type Slice = Vec<Polygon>;
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Model` is never constructed
[INFO] [stdout]   --> src/model.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Model {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Model` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `load` and `slice` are never used
[INFO] [stdout]   --> src/model.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl Model {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 21 |     // loads model from file
[INFO] [stdout] 22 |     pub fn load(file: &str) -> Model {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |     pub fn slice(&self, y: f32) -> Option<Slice> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `to_indices` and `union` are never used
[INFO] [stdout]   --> src/polygons.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl Polygon {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] 44 |     pub fn to_indices(&self, vertices: &mut Vec<Vertex>) -> IndexPolygon {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 72 |     pub fn union(&self, other: Polygon) -> Vec<Polygon> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `IndexPolygon` is never used
[INFO] [stdout]    --> src/polygons.rs:113:10
[INFO] [stdout]     |
[INFO] [stdout] 113 | pub type IndexPolygon = AbstractPolygon<usize>;
[INFO] [stdout]     |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `to_polygon` and `join` are never used
[INFO] [stdout]    --> src/polygons.rs:116:12
[INFO] [stdout]     |
[INFO] [stdout] 115 | impl IndexPolygon {
[INFO] [stdout]     | ----------------- methods in this implementation
[INFO] [stdout] 116 |     pub fn to_polygon(&self, vertices: Vec<Vertex>) -> Polygon {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 127 |     pub fn join(&self, l2: IndexPolygon) -> Option<IndexPolygon> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.85s
[INFO] running `Command { std: "docker" "inspect" "810c16a3298a7641a13e066aa4d6c7d32f3adcb6614d3c089b8bc19a1df54f1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "810c16a3298a7641a13e066aa4d6c7d32f3adcb6614d3c089b8bc19a1df54f1f", kill_on_drop: false }`
[INFO] [stdout] 810c16a3298a7641a13e066aa4d6c7d32f3adcb6614d3c089b8bc19a1df54f1f
[INFO] checking KeKsBoTer/disco against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKeKsBoTer%2Fdisco" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KeKsBoTer/disco on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KeKsBoTer/disco
[INFO] finished tweaking git repo https://github.com/KeKsBoTer/disco
[INFO] tweaked toml for git repo https://github.com/KeKsBoTer/disco written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/KeKsBoTer/disco 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fbd0c51ee77da1fc766060550b766fbf44dfffab993a90904e9efbb160e1dec9
[INFO] running `Command { std: "docker" "start" "-a" "fbd0c51ee77da1fc766060550b766fbf44dfffab993a90904e9efbb160e1dec9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fbd0c51ee77da1fc766060550b766fbf44dfffab993a90904e9efbb160e1dec9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbd0c51ee77da1fc766060550b766fbf44dfffab993a90904e9efbb160e1dec9", kill_on_drop: false }`
[INFO] [stdout] fbd0c51ee77da1fc766060550b766fbf44dfffab993a90904e9efbb160e1dec9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c775c42152240d55e3b07322942f42e503194b63171ad8c20b73f0b2f290eba
[INFO] running `Command { std: "docker" "start" "-a" "0c775c42152240d55e3b07322942f42e503194b63171ad8c20b73f0b2f290eba", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]    Compiling cgmath v0.17.0
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking bytemuck v1.2.0
[INFO] [stderr]     Checking tobj v1.0.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking miniz_oxide v0.3.6
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking deflate v0.8.4
[INFO] [stderr]     Checking tiff v0.4.0
[INFO] [stderr]     Checking png v0.16.3
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.18
[INFO] [stderr]     Checking image v0.23.4
[INFO] [stderr]     Checking disco v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::cmp::Ordering`
[INFO] [stdout]  --> src/model.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::cmp::Ordering;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:285:6
[INFO] [stdout]     |
[INFO] [stdout] 285 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::Ordering`
[INFO] [stdout]  --> src/model.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::cmp::Ordering;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:285:6
[INFO] [stdout]     |
[INFO] [stdout] 285 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     for i in 0..8 {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/main.rs:154:34
[INFO] [stdout]     |
[INFO] [stdout] 154 |                 .min_by_key(|(p, n)| {
[INFO] [stdout]     |                                  ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n1`
[INFO] [stdout]    --> src/main.rs:291:57
[INFO] [stdout]     |
[INFO] [stdout] 291 |                 v.iter().enumerate().map(move |(i, (p1, n1))| {
[INFO] [stdout]     |                                                         ^^ help: if this is intentional, prefix it with an underscore: `_n1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `connect_lines` is never used
[INFO] [stdout]   --> src/main.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn connect_lines(lines: &Vec<Polygon>) -> Vec<Polygon> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main_slice` is never used
[INFO] [stdout]    --> src/main.rs:309:4
[INFO] [stdout]     |
[INFO] [stdout] 309 | fn main_slice() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_polygon` is never used
[INFO] [stdout]    --> src/main.rs:378:4
[INFO] [stdout]     |
[INFO] [stdout] 378 | fn to_polygon(points: &Vec<Vertex>) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_line` is never used
[INFO] [stdout]    --> src/main.rs:386:4
[INFO] [stdout]     |
[INFO] [stdout] 386 | fn to_line(p: Vertex, v: Normal) -> String {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Slice` is never used
[INFO] [stdout]  --> src/model.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub type Slice = Vec<Polygon>;
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Model` is never constructed
[INFO] [stdout]   --> src/model.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Model {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Model` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `load` and `slice` are never used
[INFO] [stdout]   --> src/model.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl Model {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 21 |     // loads model from file
[INFO] [stdout] 22 |     pub fn load(file: &str) -> Model {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |     pub fn slice(&self, y: f32) -> Option<Slice> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `to_indices` and `union` are never used
[INFO] [stdout]   --> src/polygons.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl Polygon {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] 44 |     pub fn to_indices(&self, vertices: &mut Vec<Vertex>) -> IndexPolygon {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 72 |     pub fn union(&self, other: Polygon) -> Vec<Polygon> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `IndexPolygon` is never used
[INFO] [stdout]    --> src/polygons.rs:113:10
[INFO] [stdout]     |
[INFO] [stdout] 113 | pub type IndexPolygon = AbstractPolygon<usize>;
[INFO] [stdout]     |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `to_polygon` and `join` are never used
[INFO] [stdout]    --> src/polygons.rs:116:12
[INFO] [stdout]     |
[INFO] [stdout] 115 | impl IndexPolygon {
[INFO] [stdout]     | ----------------- methods in this implementation
[INFO] [stdout] 116 |     pub fn to_polygon(&self, vertices: Vec<Vertex>) -> Polygon {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 127 |     pub fn join(&self, l2: IndexPolygon) -> Option<IndexPolygon> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     for i in 0..8 {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/main.rs:154:34
[INFO] [stdout]     |
[INFO] [stdout] 154 |                 .min_by_key(|(p, n)| {
[INFO] [stdout]     |                                  ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n1`
[INFO] [stdout]    --> src/main.rs:291:57
[INFO] [stdout]     |
[INFO] [stdout] 291 |                 v.iter().enumerate().map(move |(i, (p1, n1))| {
[INFO] [stdout]     |                                                         ^^ help: if this is intentional, prefix it with an underscore: `_n1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `connect_lines` is never used
[INFO] [stdout]   --> src/main.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn connect_lines(lines: &Vec<Polygon>) -> Vec<Polygon> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main_slice` is never used
[INFO] [stdout]    --> src/main.rs:309:4
[INFO] [stdout]     |
[INFO] [stdout] 309 | fn main_slice() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_polygon` is never used
[INFO] [stdout]    --> src/main.rs:378:4
[INFO] [stdout]     |
[INFO] [stdout] 378 | fn to_polygon(points: &Vec<Vertex>) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_line` is never used
[INFO] [stdout]    --> src/main.rs:386:4
[INFO] [stdout]     |
[INFO] [stdout] 386 | fn to_line(p: Vertex, v: Normal) -> String {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Slice` is never used
[INFO] [stdout]  --> src/model.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub type Slice = Vec<Polygon>;
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Model` is never constructed
[INFO] [stdout]   --> src/model.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Model {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Model` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `load` and `slice` are never used
[INFO] [stdout]   --> src/model.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl Model {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 21 |     // loads model from file
[INFO] [stdout] 22 |     pub fn load(file: &str) -> Model {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |     pub fn slice(&self, y: f32) -> Option<Slice> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `to_indices` and `union` are never used
[INFO] [stdout]   --> src/polygons.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl Polygon {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] 44 |     pub fn to_indices(&self, vertices: &mut Vec<Vertex>) -> IndexPolygon {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 72 |     pub fn union(&self, other: Polygon) -> Vec<Polygon> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `IndexPolygon` is never used
[INFO] [stdout]    --> src/polygons.rs:113:10
[INFO] [stdout]     |
[INFO] [stdout] 113 | pub type IndexPolygon = AbstractPolygon<usize>;
[INFO] [stdout]     |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `to_polygon` and `join` are never used
[INFO] [stdout]    --> src/polygons.rs:116:12
[INFO] [stdout]     |
[INFO] [stdout] 115 | impl IndexPolygon {
[INFO] [stdout]     | ----------------- methods in this implementation
[INFO] [stdout] 116 |     pub fn to_polygon(&self, vertices: Vec<Vertex>) -> Polygon {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 127 |     pub fn join(&self, l2: IndexPolygon) -> Option<IndexPolygon> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.33s
[INFO] running `Command { std: "docker" "inspect" "0c775c42152240d55e3b07322942f42e503194b63171ad8c20b73f0b2f290eba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c775c42152240d55e3b07322942f42e503194b63171ad8c20b73f0b2f290eba", kill_on_drop: false }`
[INFO] [stdout] 0c775c42152240d55e3b07322942f42e503194b63171ad8c20b73f0b2f290eba