[INFO] cloning repository https://github.com/Zitronenjoghurt/lemon-png [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Zitronenjoghurt/lemon-png" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZitronenjoghurt%2Flemon-png", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZitronenjoghurt%2Flemon-png'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 11c86c2d1120da73d1afd2cea47f638680cfcc2f [INFO] checking Zitronenjoghurt/lemon-png against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZitronenjoghurt%2Flemon-png" "/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/Zitronenjoghurt/lemon-png [INFO] finished tweaking git repo https://github.com/Zitronenjoghurt/lemon-png [INFO] tweaked toml for git repo https://github.com/Zitronenjoghurt/lemon-png written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/Zitronenjoghurt/lemon-png on toolchain 93086cfebfccb79083c59d0d3b2052944bba643c [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/Zitronenjoghurt/lemon-png 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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] 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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5c04572213ea1cefd2f122a1aa9b29150196e20dfc79bad65a8a96cc8cc0352d [INFO] running `Command { std: "docker" "start" "-a" "5c04572213ea1cefd2f122a1aa9b29150196e20dfc79bad65a8a96cc8cc0352d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5c04572213ea1cefd2f122a1aa9b29150196e20dfc79bad65a8a96cc8cc0352d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5c04572213ea1cefd2f122a1aa9b29150196e20dfc79bad65a8a96cc8cc0352d", kill_on_drop: false }` [INFO] [stdout] 5c04572213ea1cefd2f122a1aa9b29150196e20dfc79bad65a8a96cc8cc0352d [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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 59304e60c1fd5783659ecf255a2f25cb433e70430cd18bdd9f95471ef31403da [INFO] running `Command { std: "docker" "start" "-a" "59304e60c1fd5783659ecf255a2f25cb433e70430cd18bdd9f95471ef31403da", kill_on_drop: false }` [INFO] [stderr] Checking miniz_oxide v0.8.9 [INFO] [stderr] Checking crc32fast v1.5.0 [INFO] [stderr] Checking flate2 v1.1.2 [INFO] [stderr] Checking lemon-png v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `stream` [INFO] [stdout] --> src/rendering/filtering.rs:13:26 [INFO] [stdout] | [INFO] [stdout] 13 | pub fn filter(&self, stream: &[u8], scanline_width: usize) -> Vec { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `stream` [INFO] [stdout] --> src/rendering/filtering.rs:13:26 [INFO] [stdout] | [INFO] [stdout] 13 | pub fn filter(&self, stream: &[u8], scanline_width: usize) -> Vec { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `lemon-png` (lib) due to 1 previous error; 12 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `lemon-png` (lib test) due to 1 previous error; 12 warnings emitted [INFO] [stdout] warning: unused variable: `scanline_width` [INFO] [stdout] --> src/rendering/filtering.rs:13:41 [INFO] [stdout] | [INFO] [stdout] 13 | pub fn filter(&self, stream: &[u8], scanline_width: usize) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scanline_width` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `scanline_width` [INFO] [stdout] --> src/rendering/filtering.rs:13:41 [INFO] [stdout] | [INFO] [stdout] 13 | pub fn filter(&self, stream: &[u8], scanline_width: usize) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scanline_width` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `get_type` is never used [INFO] [stdout] --> src/codec/parsed_chunk.rs:15:12 [INFO] [stdout] | [INFO] [stdout] 14 | impl ParsedChunk { [INFO] [stdout] | ---------------- method in this implementation [INFO] [stdout] 15 | pub fn get_type(&self) -> ChunkType { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `as_rgb8` is never used [INFO] [stdout] --> src/color.rs:53:8 [INFO] [stdout] | [INFO] [stdout] 52 | pub trait ColorTrait { [INFO] [stdout] | ---------- method in this trait [INFO] [stdout] 53 | fn as_rgb8(&self) -> ColorRGB8; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `as_rgb8` is never used [INFO] [stdout] --> src/color.rs:58:8 [INFO] [stdout] | [INFO] [stdout] 57 | pub trait ColorBufferTrait { [INFO] [stdout] | ---------------- method in this trait [INFO] [stdout] 58 | fn as_rgb8(&self) -> Vec; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `get_type` is never used [INFO] [stdout] --> src/codec/parsed_chunk.rs:15:12 [INFO] [stdout] | [INFO] [stdout] 14 | impl ParsedChunk { [INFO] [stdout] | ---------------- method in this implementation [INFO] [stdout] 15 | pub fn get_type(&self) -> ChunkType { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/png/types/palette.rs:4:20 [INFO] [stdout] | [INFO] [stdout] 4 | pub struct Palette(Vec); [INFO] [stdout] | ------- ^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `Palette` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: struct `UnfilteredScanline` is never constructed [INFO] [stdout] --> src/png/types/scanline.rs:10:12 [INFO] [stdout] | [INFO] [stdout] 10 | pub struct UnfilteredScanline(Vec); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it [INFO] [stdout] = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/png/types/scanline.rs:10:31 [INFO] [stdout] | [INFO] [stdout] 10 | pub struct UnfilteredScanline(Vec); [INFO] [stdout] | ------------------ ^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `UnfilteredScanline` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `as_rgb8` is never used [INFO] [stdout] --> src/color.rs:53:8 [INFO] [stdout] | [INFO] [stdout] 52 | pub trait ColorTrait { [INFO] [stdout] | ---------- method in this trait [INFO] [stdout] 53 | fn as_rgb8(&self) -> ColorRGB8; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `filter` and `filter_byte` are never used [INFO] [stdout] --> src/rendering/filtering.rs:13:12 [INFO] [stdout] | [INFO] [stdout] 8 | impl Filterer { [INFO] [stdout] | ------------- associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 13 | pub fn filter(&self, stream: &[u8], scanline_width: usize) -> Vec { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 61 | pub fn filter_byte(a: u8, b: u8, c: u8, x: u8, filter_type: FilterType) -> u8 { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `as_rgb8` is never used [INFO] [stdout] --> src/color.rs:58:8 [INFO] [stdout] | [INFO] [stdout] 57 | pub trait ColorBufferTrait { [INFO] [stdout] | ---------------- method in this trait [INFO] [stdout] 58 | fn as_rgb8(&self) -> Vec; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `read_u8` is never used [INFO] [stdout] --> src/utils/bytestream.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn read_u8(stream: &[u8], offset: usize) -> Option { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `read_u16_be` is never used [INFO] [stdout] --> src/utils/bytestream.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | pub fn read_u16_be(stream: &[u8], offset: usize) -> Option { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/png/types/palette.rs:4:20 [INFO] [stdout] | [INFO] [stdout] 4 | pub struct Palette(Vec); [INFO] [stdout] | ------- ^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `Palette` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `crc32` is never used [INFO] [stdout] --> src/utils/crc.rs:45:8 [INFO] [stdout] | [INFO] [stdout] 45 | pub fn crc32(data: &[u8]) -> u32 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: struct `UnfilteredScanline` is never constructed [INFO] [stdout] --> src/png/types/scanline.rs:10:12 [INFO] [stdout] | [INFO] [stdout] 10 | pub struct UnfilteredScanline(Vec); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it [INFO] [stdout] = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/png/chunk.rs:86:17 [INFO] [stdout] | [INFO] [stdout] 86 | pub fn iter(&self) -> std::slice::Iter { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 86 | pub fn iter(&self) -> std::slice::Iter<'_, Chunk> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/png/types/scanline.rs:10:31 [INFO] [stdout] | [INFO] [stdout] 10 | pub struct UnfilteredScanline(Vec); [INFO] [stdout] | ------------------ ^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `UnfilteredScanline` 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 `filter` and `filter_byte` are never used [INFO] [stdout] --> src/rendering/filtering.rs:13:12 [INFO] [stdout] | [INFO] [stdout] 8 | impl Filterer { [INFO] [stdout] | ------------- associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 13 | pub fn filter(&self, stream: &[u8], scanline_width: usize) -> Vec { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 61 | pub fn filter_byte(a: u8, b: u8, c: u8, x: u8, filter_type: FilterType) -> u8 { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `read_u8` is never used [INFO] [stdout] --> src/utils/bytestream.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn read_u8(stream: &[u8], offset: usize) -> Option { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `read_u16_be` is never used [INFO] [stdout] --> src/utils/bytestream.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | pub fn read_u16_be(stream: &[u8], offset: usize) -> Option { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `crc32` is never used [INFO] [stdout] --> src/utils/crc.rs:45:8 [INFO] [stdout] | [INFO] [stdout] 45 | pub fn crc32(data: &[u8]) -> u32 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/png/chunk.rs:86:17 [INFO] [stdout] | [INFO] [stdout] 86 | pub fn iter(&self) -> std::slice::Iter { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 86 | pub fn iter(&self) -> std::slice::Iter<'_, Chunk> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "59304e60c1fd5783659ecf255a2f25cb433e70430cd18bdd9f95471ef31403da", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "59304e60c1fd5783659ecf255a2f25cb433e70430cd18bdd9f95471ef31403da", kill_on_drop: false }` [INFO] [stdout] 59304e60c1fd5783659ecf255a2f25cb433e70430cd18bdd9f95471ef31403da