[INFO] cloning repository https://github.com/markusdemedeiros/pngme
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/markusdemedeiros/pngme" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarkusdemedeiros%2Fpngme", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarkusdemedeiros%2Fpngme'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4e102de5b8e7f30be0a5b6870b991dbd11850a5f
[INFO] testing markusdemedeiros/pngme against try#0abe69e6c16114311cc2700e972492e64d69c28f for pr-154065-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarkusdemedeiros%2Fpngme" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/markusdemedeiros/pngme
[INFO] finished tweaking git repo https://github.com/markusdemedeiros/pngme
[INFO] tweaked toml for git repo https://github.com/markusdemedeiros/pngme written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/markusdemedeiros/pngme on toolchain 0abe69e6c16114311cc2700e972492e64d69c28f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/markusdemedeiros/pngme 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" "+0abe69e6c16114311cc2700e972492e64d69c28f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c1d2e44e6172bfa5d108afb5562fac1a1794fb287ee0f2165e9069d5dc4f3737
[INFO] running `Command { std: "docker" "start" "-a" "c1d2e44e6172bfa5d108afb5562fac1a1794fb287ee0f2165e9069d5dc4f3737", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1d2e44e6172bfa5d108afb5562fac1a1794fb287ee0f2165e9069d5dc4f3737", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1d2e44e6172bfa5d108afb5562fac1a1794fb287ee0f2165e9069d5dc4f3737", kill_on_drop: false }`
[INFO] [stdout] c1d2e44e6172bfa5d108afb5562fac1a1794fb287ee0f2165e9069d5dc4f3737
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d562a70071992cfc41e9fea4ecce323b426d4ba2b6aeddb8840c4d0dcbd0b28d
[INFO] running `Command { std: "docker" "start" "-a" "d562a70071992cfc41e9fea4ecce323b426d4ba2b6aeddb8840c4d0dcbd0b28d", kill_on_drop: false }`
[INFO] [stderr]    Compiling crc-catalog v1.1.1
[INFO] [stderr]    Compiling crc v2.1.0
[INFO] [stderr]    Compiling pngme v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `Chunk_IHDR` should have an upper camel case name
[INFO] [stdout]  --> src/chunk_spec.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Chunk_IHDR {
[INFO] [stdout]   |        ^^^^^^^^^^ help: convert the identifier to upper camel case: `ChunkIhdr`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Chunk_IDAT` should have an upper camel case name
[INFO] [stdout]   --> src/chunk_spec.rs:79:8
[INFO] [stdout]    |
[INFO] [stdout] 79 | struct Chunk_IDAT {}
[INFO] [stdout]    |        ^^^^^^^^^^ help: convert the identifier to upper camel case: `ChunkIdat`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Chunk_IEND` should have an upper camel case name
[INFO] [stdout]   --> src/chunk_spec.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 | struct Chunk_IEND {}
[INFO] [stdout]    |        ^^^^^^^^^^ help: convert the identifier to upper camel case: `ChunkIend`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/png_util.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 |     io::{self, Read},
[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 import: `Error`
[INFO] [stdout]  --> src/png_util.rs:7:46
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::{chunk_type::ChunkType, png::Png, Error, Result};
[INFO] [stdout]   |                                              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `iter::once`
[INFO] [stdout]  --> src/png.rs:1:61
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{convert::TryFrom, convert::TryInto, fmt::Display, iter::once};
[INFO] [stdout]   |                                                             ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/png.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |     chunk::{self, Chunk},
[INFO] [stdout]   |             ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]   --> src/chunk_spec.rs:74:13
[INFO] [stdout]    |
[INFO] [stdout] 74 |             other => self.bit_depth,
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/main.rs:11:27
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn throw_string_error(s: &'static str) -> Error {
[INFO] [stdout]    |                           ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Chunk` is never constructed
[INFO] [stdout]   --> src/chunk.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Chunk {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/chunk.rs:63:15
[INFO] [stdout]     |
[INFO] [stdout]  61 | impl Chunk {
[INFO] [stdout]     | ---------- associated items in this implementation
[INFO] [stdout]  62 |     // CRC algorithm used by the PNG spec
[INFO] [stdout]  63 |     pub const CHUNK_CRC: Crc<u32> = Crc::<u32>::new(&crc::CRC_32_ISO_HDLC);
[INFO] [stdout]     |               ^^^^^^^^^
[INFO] [stdout]  64 |
[INFO] [stdout]  65 |     pub fn new(chunk_type: ChunkType, data: Vec<u8>) -> Chunk {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  82 |     pub fn length(&self) -> u32 {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  85 |     pub fn chunk_type(&self) -> &ChunkType {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  88 |     pub fn data(&self) -> &[u8] {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  91 |     pub fn crc(&self) -> u32 {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  94 |     pub fn data_as_string(&self) -> Result<String> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 100 |     pub fn as_bytes(&self) -> Vec<u8> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ChunkSpec` is never used
[INFO] [stdout]  --> src/chunk_spec.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | trait ChunkSpec {
[INFO] [stdout]   |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Chunk_IHDR` is never constructed
[INFO] [stdout]  --> src/chunk_spec.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Chunk_IHDR {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ColorType` is never used
[INFO] [stdout]   --> src/chunk_spec.rs:16:6
[INFO] [stdout]    |
[INFO] [stdout] 16 | enum ColorType {
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `CompressionMethod` is never used
[INFO] [stdout]   --> src/chunk_spec.rs:25:6
[INFO] [stdout]    |
[INFO] [stdout] 25 | enum CompressionMethod {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `FilterMethod` is never used
[INFO] [stdout]   --> src/chunk_spec.rs:30:6
[INFO] [stdout]    |
[INFO] [stdout] 30 | enum FilterMethod {
[INFO] [stdout]    |      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `InterlaceMethod` is never used
[INFO] [stdout]   --> src/chunk_spec.rs:35:6
[INFO] [stdout]    |
[INFO] [stdout] 35 | enum InterlaceMethod {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `pallate_used`, `color_used`, `alpha_used`, and `allowed_bit_depth` are never used
[INFO] [stdout]   --> src/chunk_spec.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | impl ColorType {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] 41 |     fn pallate_used(self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     fn color_used(self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     fn alpha_used(self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 53 |     fn allowed_bit_depth(self, depth: u8) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `sample_depth` is never used
[INFO] [stdout]   --> src/chunk_spec.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 70 | impl Chunk_IHDR {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] 71 |     fn sample_depth(self) -> u8 {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Chunk_IDAT` is never constructed
[INFO] [stdout]   --> src/chunk_spec.rs:79:8
[INFO] [stdout]    |
[INFO] [stdout] 79 | struct Chunk_IDAT {}
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Chunk_IEND` is never constructed
[INFO] [stdout]   --> src/chunk_spec.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 | struct Chunk_IEND {}
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_png` is never used
[INFO] [stdout]   --> src/png_util.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn read_png(filepath: &str) -> Result<Png> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `chunk_headers` is never used
[INFO] [stdout]   --> src/png_util.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn chunk_headers(png: Png) -> Vec<ChunkType> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `chunk_headers_show` is never used
[INFO] [stdout]   --> src/png_util.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn chunk_headers_show(png: Png) -> Vec<String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Png` is never constructed
[INFO] [stdout]  --> src/png.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Png {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/png.rs:48:15
[INFO] [stdout]    |
[INFO] [stdout] 47 | impl Png {
[INFO] [stdout]    | -------- associated items in this implementation
[INFO] [stdout] 48 |     pub const STANDARD_HEADER: [u8; 8] = [137, 80, 78, 71, 13, 10, 26, 10];
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^
[INFO] [stdout] 49 |     pub fn from_chunks(chunks: Vec<Chunk>) -> Png {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     pub fn append_chunk(&mut self, chunk: Chunk) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     pub fn remove_chunk(&mut self, chunk_type: &str) -> Result<Chunk> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 72 |     pub fn header(&self) -> &[u8; 8] {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 75 |     pub fn chunks(&self) -> &[Chunk] {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 78 |     pub fn chunk_by_type(&self, chunk_type: &str) -> Option<&Chunk> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 87 |     pub fn as_bytes(&self) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "d562a70071992cfc41e9fea4ecce323b426d4ba2b6aeddb8840c4d0dcbd0b28d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d562a70071992cfc41e9fea4ecce323b426d4ba2b6aeddb8840c4d0dcbd0b28d", kill_on_drop: false }`
[INFO] [stdout] d562a70071992cfc41e9fea4ecce323b426d4ba2b6aeddb8840c4d0dcbd0b28d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71a6f549fa5984a01984fc9d7e463110a64f9dc422fdf5950dce08251502e2d8
[INFO] running `Command { std: "docker" "start" "-a" "71a6f549fa5984a01984fc9d7e463110a64f9dc422fdf5950dce08251502e2d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling pngme v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `Chunk_IHDR` should have an upper camel case name
[INFO] [stdout]  --> src/chunk_spec.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Chunk_IHDR {
[INFO] [stdout]   |        ^^^^^^^^^^ help: convert the identifier to upper camel case: `ChunkIhdr`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Chunk_IDAT` should have an upper camel case name
[INFO] [stdout]   --> src/chunk_spec.rs:79:8
[INFO] [stdout]    |
[INFO] [stdout] 79 | struct Chunk_IDAT {}
[INFO] [stdout]    |        ^^^^^^^^^^ help: convert the identifier to upper camel case: `ChunkIdat`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Chunk_IEND` should have an upper camel case name
[INFO] [stdout]   --> src/chunk_spec.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 | struct Chunk_IEND {}
[INFO] [stdout]    |        ^^^^^^^^^^ help: convert the identifier to upper camel case: `ChunkIend`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/png_util.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 |     io::{self, Read},
[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 import: `Error`
[INFO] [stdout]  --> src/png_util.rs:7:46
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::{chunk_type::ChunkType, png::Png, Error, Result};
[INFO] [stdout]   |                                              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `iter::once`
[INFO] [stdout]  --> src/png.rs:1:61
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{convert::TryFrom, convert::TryInto, fmt::Display, iter::once};
[INFO] [stdout]   |                                                             ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/png.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |     chunk::{self, Chunk},
[INFO] [stdout]   |             ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]   --> src/chunk_spec.rs:74:13
[INFO] [stdout]    |
[INFO] [stdout] 74 |             other => self.bit_depth,
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/main.rs:11:27
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn throw_string_error(s: &'static str) -> Error {
[INFO] [stdout]    |                           ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ChunkSpec` is never used
[INFO] [stdout]  --> src/chunk_spec.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | trait ChunkSpec {
[INFO] [stdout]   |       ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Chunk_IHDR` is never constructed
[INFO] [stdout]  --> src/chunk_spec.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Chunk_IHDR {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ColorType` is never used
[INFO] [stdout]   --> src/chunk_spec.rs:16:6
[INFO] [stdout]    |
[INFO] [stdout] 16 | enum ColorType {
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `CompressionMethod` is never used
[INFO] [stdout]   --> src/chunk_spec.rs:25:6
[INFO] [stdout]    |
[INFO] [stdout] 25 | enum CompressionMethod {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `FilterMethod` is never used
[INFO] [stdout]   --> src/chunk_spec.rs:30:6
[INFO] [stdout]    |
[INFO] [stdout] 30 | enum FilterMethod {
[INFO] [stdout]    |      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `InterlaceMethod` is never used
[INFO] [stdout]   --> src/chunk_spec.rs:35:6
[INFO] [stdout]    |
[INFO] [stdout] 35 | enum InterlaceMethod {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `pallate_used`, `color_used`, `alpha_used`, and `allowed_bit_depth` are never used
[INFO] [stdout]   --> src/chunk_spec.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | impl ColorType {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] 41 |     fn pallate_used(self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     fn color_used(self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     fn alpha_used(self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 53 |     fn allowed_bit_depth(self, depth: u8) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `sample_depth` is never used
[INFO] [stdout]   --> src/chunk_spec.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 70 | impl Chunk_IHDR {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] 71 |     fn sample_depth(self) -> u8 {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Chunk_IDAT` is never constructed
[INFO] [stdout]   --> src/chunk_spec.rs:79:8
[INFO] [stdout]    |
[INFO] [stdout] 79 | struct Chunk_IDAT {}
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Chunk_IEND` is never constructed
[INFO] [stdout]   --> src/chunk_spec.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 | struct Chunk_IEND {}
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `chunk_headers` is never used
[INFO] [stdout]   --> src/png_util.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn chunk_headers(png: Png) -> Vec<ChunkType> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `header` is never used
[INFO] [stdout]   --> src/png.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 47 | impl Png {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 72 |     pub fn header(&self) -> &[u8; 8] {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "71a6f549fa5984a01984fc9d7e463110a64f9dc422fdf5950dce08251502e2d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71a6f549fa5984a01984fc9d7e463110a64f9dc422fdf5950dce08251502e2d8", kill_on_drop: false }`
[INFO] [stdout] 71a6f549fa5984a01984fc9d7e463110a64f9dc422fdf5950dce08251502e2d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e0c72c0f42138a3005c73c1eb163249b144d6574c119e5a1ad237fff52b01fb1
[INFO] running `Command { std: "docker" "start" "-a" "e0c72c0f42138a3005c73c1eb163249b144d6574c119e5a1ad237fff52b01fb1", kill_on_drop: false }`
[INFO] [stderr] warning: type `Chunk_IHDR` should have an upper camel case name
[INFO] [stderr]  --> src/chunk_spec.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | struct Chunk_IHDR {
[INFO] [stderr]   |        ^^^^^^^^^^ help: convert the identifier to upper camel case: `ChunkIhdr`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type `Chunk_IDAT` should have an upper camel case name
[INFO] [stderr]   --> src/chunk_spec.rs:79:8
[INFO] [stderr]    |
[INFO] [stderr] 79 | struct Chunk_IDAT {}
[INFO] [stderr]    |        ^^^^^^^^^^ help: convert the identifier to upper camel case: `ChunkIdat`
[INFO] [stderr] 
[INFO] [stderr] warning: type `Chunk_IEND` should have an upper camel case name
[INFO] [stderr]   --> src/chunk_spec.rs:80:8
[INFO] [stderr]    |
[INFO] [stderr] 80 | struct Chunk_IEND {}
[INFO] [stderr]    |        ^^^^^^^^^^ help: convert the identifier to upper camel case: `ChunkIend`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]  --> src/png_util.rs:4:10
[INFO] [stderr]   |
[INFO] [stderr] 4 |     io::{self, Read},
[INFO] [stderr]   |          ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Error`
[INFO] [stderr]  --> src/png_util.rs:7:46
[INFO] [stderr]   |
[INFO] [stderr] 7 | use crate::{chunk_type::ChunkType, png::Png, Error, Result};
[INFO] [stderr]   |                                              ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `iter::once`
[INFO] [stderr]  --> src/png.rs:1:61
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{convert::TryFrom, convert::TryInto, fmt::Display, iter::once};
[INFO] [stderr]   |                                                             ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]  --> src/png.rs:4:13
[INFO] [stderr]   |
[INFO] [stderr] 4 |     chunk::{self, Chunk},
[INFO] [stderr]   |             ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `other`
[INFO] [stderr]   --> src/chunk_spec.rs:74:13
[INFO] [stderr]    |
[INFO] [stderr] 74 |             other => self.bit_depth,
[INFO] [stderr]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/main.rs:11:27
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn throw_string_error(s: &'static str) -> Error {
[INFO] [stderr]    |                           ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: trait `ChunkSpec` is never used
[INFO] [stderr]  --> src/chunk_spec.rs:1:7
[INFO] [stderr]   |
[INFO] [stderr] 1 | trait ChunkSpec {
[INFO] [stderr]   |       ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Chunk_IHDR` is never constructed
[INFO] [stderr]  --> src/chunk_spec.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | struct Chunk_IHDR {
[INFO] [stderr]   |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `ColorType` is never used
[INFO] [stderr]   --> src/chunk_spec.rs:16:6
[INFO] [stderr]    |
[INFO] [stderr] 16 | enum ColorType {
[INFO] [stderr]    |      ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `CompressionMethod` is never used
[INFO] [stderr]   --> src/chunk_spec.rs:25:6
[INFO] [stderr]    |
[INFO] [stderr] 25 | enum CompressionMethod {
[INFO] [stderr]    |      ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `FilterMethod` is never used
[INFO] [stderr]   --> src/chunk_spec.rs:30:6
[INFO] [stderr]    |
[INFO] [stderr] 30 | enum FilterMethod {
[INFO] [stderr]    |      ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `InterlaceMethod` is never used
[INFO] [stderr]   --> src/chunk_spec.rs:35:6
[INFO] [stderr]    |
[INFO] [stderr] 35 | enum InterlaceMethod {
[INFO] [stderr]    |      ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `pallate_used`, `color_used`, `alpha_used`, and `allowed_bit_depth` are never used
[INFO] [stderr]   --> src/chunk_spec.rs:41:8
[INFO] [stderr]    |
[INFO] [stderr] 40 | impl ColorType {
[INFO] [stderr]    | -------------- methods in this implementation
[INFO] [stderr] 41 |     fn pallate_used(self) -> bool {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 45 |     fn color_used(self) -> bool {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 49 |     fn alpha_used(self) -> bool {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 53 |     fn allowed_bit_depth(self, depth: u8) -> bool {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `sample_depth` is never used
[INFO] [stderr]   --> src/chunk_spec.rs:71:8
[INFO] [stderr]    |
[INFO] [stderr] 70 | impl Chunk_IHDR {
[INFO] [stderr]    | --------------- method in this implementation
[INFO] [stderr] 71 |     fn sample_depth(self) -> u8 {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Chunk_IDAT` is never constructed
[INFO] [stderr]   --> src/chunk_spec.rs:79:8
[INFO] [stderr]    |
[INFO] [stderr] 79 | struct Chunk_IDAT {}
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Chunk_IEND` is never constructed
[INFO] [stderr]   --> src/chunk_spec.rs:80:8
[INFO] [stderr]    |
[INFO] [stderr] 80 | struct Chunk_IEND {}
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `chunk_headers` is never used
[INFO] [stderr]   --> src/png_util.rs:20:8
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub fn chunk_headers(png: Png) -> Vec<ChunkType> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `header` is never used
[INFO] [stderr]   --> src/png.rs:72:12
[INFO] [stderr]    |
[INFO] [stderr] 47 | impl Png {
[INFO] [stderr]    | -------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 72 |     pub fn header(&self) -> &[u8; 8] {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `pngme` (bin "pngme" test) generated 21 warnings (run `cargo fix --bin "pngme" -p pngme --tests` to apply 6 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/pngme-6f48d7591edd8cdf)
[INFO] [stdout] 
[INFO] [stdout] running 34 tests
[INFO] [stdout] test chunk::tests::test_chunk_crc ... ok
[INFO] [stdout] test chunk::tests::test_chunk_string ... ok
[INFO] [stdout] test chunk::tests::test_chunk_length ... ok
[INFO] [stdout] test chunk::tests::test_chunk_trait_impls ... ok
[INFO] [stdout] test chunk::tests::test_chunk_type ... ok
[INFO] [stdout] test chunk::tests::test_invalid_chunk_from_bytes ... ok
[INFO] [stdout] test chunk::tests::test_new_chunk ... ok
[INFO] [stdout] test chunk::tests::test_valid_chunk_from_bytes ... ok
[INFO] [stdout] test chunk_type::tests::test_chunk_type_from_bytes ... ok
[INFO] [stdout] test chunk_type::tests::test_chunk_type_from_str ... ok
[INFO] [stdout] test chunk_type::tests::test_chunk_type_is_critical ... ok
[INFO] [stdout] test chunk_type::tests::test_chunk_type_is_not_public ... ok
[INFO] [stdout] test chunk_type::tests::test_chunk_type_is_not_critical ... ok
[INFO] [stdout] test chunk_type::tests::test_chunk_type_is_reserved_bit_invalid ... ok
[INFO] [stdout] test chunk_type::tests::test_chunk_type_is_public ... ok
[INFO] [stdout] test chunk_type::tests::test_chunk_type_is_reserved_bit_valid ... ok
[INFO] [stdout] test chunk_type::tests::test_chunk_type_is_unsafe_to_copy ... ok
[INFO] [stdout] test chunk_type::tests::test_chunk_type_string ... ok
[INFO] [stdout] test chunk_type::tests::test_chunk_type_trait_impls ... ok
[INFO] [stdout] test chunk_type::tests::test_invalid_chunk_is_valid ... ok
[INFO] [stdout] test chunk_type::tests::test_valid_chunk_is_valid ... ok
[INFO] [stdout] test png::tests::test_append_chunk ... ok
[INFO] [stdout] test chunk_type::tests::test_chunk_type_is_safe_to_copy ... ok
[INFO] [stdout] test png::tests::test_chunk_by_type ... ok
[INFO] [stdout] test png::tests::test_from_chunks ... ok
[INFO] [stdout] test png::tests::test_invalid_chunk ... ok
[INFO] [stdout] test png::tests::test_invalid_header ... ok
[INFO] [stdout] test png::tests::test_list_chunks ... ok
[INFO] [stdout] test png::tests::test_png_trait_impls ... ok
[INFO] [stdout] test png::tests::test_remove_chunk ... ok
[INFO] [stdout] test png::tests::test_valid_from_bytes ... ok
[INFO] [stdout] test png::tests::test_png_from_image_file ... ok
[INFO] [stdout] test png::tests::test_as_bytes ... ok
[INFO] [stdout] test png_util::tests::read_file ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 34 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e0c72c0f42138a3005c73c1eb163249b144d6574c119e5a1ad237fff52b01fb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0c72c0f42138a3005c73c1eb163249b144d6574c119e5a1ad237fff52b01fb1", kill_on_drop: false }`
[INFO] [stdout] e0c72c0f42138a3005c73c1eb163249b144d6574c119e5a1ad237fff52b01fb1
