[INFO] cloning repository https://github.com/Xychic/rust_png_processor [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Xychic/rust_png_processor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FXychic%2Frust_png_processor", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FXychic%2Frust_png_processor'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 41e470c853da40a4b3acfaaac50cb2fc35f7b828 [INFO] building Xychic/rust_png_processor against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FXychic%2Frust_png_processor" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Xychic/rust_png_processor on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Xychic/rust_png_processor [INFO] finished tweaking git repo https://github.com/Xychic/rust_png_processor [INFO] tweaked toml for git repo https://github.com/Xychic/rust_png_processor written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/Xychic/rust_png_processor 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b93ee7c75413ea0eb1683027ac3a97551bede9200b3708f9f2be6819276b9d7d [INFO] running `Command { std: "docker" "start" "-a" "b93ee7c75413ea0eb1683027ac3a97551bede9200b3708f9f2be6819276b9d7d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b93ee7c75413ea0eb1683027ac3a97551bede9200b3708f9f2be6819276b9d7d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b93ee7c75413ea0eb1683027ac3a97551bede9200b3708f9f2be6819276b9d7d", kill_on_drop: false }` [INFO] [stdout] b93ee7c75413ea0eb1683027ac3a97551bede9200b3708f9f2be6819276b9d7d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c5c692b1c3331332f6f1a64b3bc942cb2070e5b65af81b864361c0c3dd1d6a5c [INFO] running `Command { std: "docker" "start" "-a" "c5c692b1c3331332f6f1a64b3bc942cb2070e5b65af81b864361c0c3dd1d6a5c", kill_on_drop: false }` [INFO] [stderr] Compiling crc32fast v1.3.2 [INFO] [stderr] Compiling rle-decode-fast v1.0.3 [INFO] [stderr] Compiling adler32 v1.2.0 [INFO] [stderr] Compiling libflate_lz77 v1.1.0 [INFO] [stderr] Compiling libflate v1.2.0 [INFO] [stderr] Compiling png_writer v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: methods `check_crc` and `chunk_size` are never used [INFO] [stdout] --> src/structs.rs:76:12 [INFO] [stdout] | [INFO] [stdout] 64 | impl Chunk { [INFO] [stdout] | ---------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 76 | pub fn check_crc(&self) -> bool { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 95 | pub fn chunk_size(&self) -> usize { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `RGB`, `Palette`, `GrayscaleAlpha`, and `RGBAlpha` are never constructed [INFO] [stdout] --> src/structs.rs:122:5 [INFO] [stdout] | [INFO] [stdout] 120 | pub enum ColourType { [INFO] [stdout] | ---------- variants in this enum [INFO] [stdout] 121 | Grayscale, [INFO] [stdout] 122 | RGB, [INFO] [stdout] | ^^^ [INFO] [stdout] 123 | Palette, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 124 | GrayscaleAlpha, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] 125 | RGBAlpha, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `dimension` and `bit_depth` are never read [INFO] [stdout] --> src/structs.rs:156:9 [INFO] [stdout] | [INFO] [stdout] 153 | pub struct PNG { [INFO] [stdout] | --- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 156 | pub dimension: (u32, u32), [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 157 | pub bit_depth: u8, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `PNG` 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 function `from_file` is never used [INFO] [stdout] --> src/structs.rs:212:12 [INFO] [stdout] | [INFO] [stdout] 163 | impl PNG { [INFO] [stdout] | -------- associated function in this implementation [INFO] [stdout] ... [INFO] [stdout] 212 | pub fn from_file(filepath: &str) -> Result { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `get_chunk` is never used [INFO] [stdout] --> src/structs.rs:343:4 [INFO] [stdout] | [INFO] [stdout] 343 | fn get_chunk(buffer: &mut Iter) -> (Chunk, usize) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `bytes_to_u32` is never used [INFO] [stdout] --> src/structs.rs:365:4 [INFO] [stdout] | [INFO] [stdout] 365 | fn bytes_to_u32(bytes: &[u8]) -> u32 { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `bytes_to_ascii` is never used [INFO] [stdout] --> src/structs.rs:369:4 [INFO] [stdout] | [INFO] [stdout] 369 | fn bytes_to_ascii(bytes: &[u8]) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `take_bytes` is never used [INFO] [stdout] --> src/structs.rs:373:4 [INFO] [stdout] | [INFO] [stdout] 373 | fn take_bytes(buffer: &mut Iter, count: u32) -> Vec { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.41s [INFO] running `Command { std: "docker" "inspect" "c5c692b1c3331332f6f1a64b3bc942cb2070e5b65af81b864361c0c3dd1d6a5c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c5c692b1c3331332f6f1a64b3bc942cb2070e5b65af81b864361c0c3dd1d6a5c", kill_on_drop: false }` [INFO] [stdout] c5c692b1c3331332f6f1a64b3bc942cb2070e5b65af81b864361c0c3dd1d6a5c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e4658fee20f279008b5d9938ed9e62834e2ad207fc5c8c35d042ecc5577ca9e7 [INFO] running `Command { std: "docker" "start" "-a" "e4658fee20f279008b5d9938ed9e62834e2ad207fc5c8c35d042ecc5577ca9e7", kill_on_drop: false }` [INFO] [stderr] Compiling png_writer v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: methods `check_crc` and `chunk_size` are never used [INFO] [stdout] --> src/structs.rs:76:12 [INFO] [stdout] | [INFO] [stdout] 64 | impl Chunk { [INFO] [stdout] | ---------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 76 | pub fn check_crc(&self) -> bool { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 95 | pub fn chunk_size(&self) -> usize { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `RGB`, `Palette`, `GrayscaleAlpha`, and `RGBAlpha` are never constructed [INFO] [stdout] --> src/structs.rs:122:5 [INFO] [stdout] | [INFO] [stdout] 120 | pub enum ColourType { [INFO] [stdout] | ---------- variants in this enum [INFO] [stdout] 121 | Grayscale, [INFO] [stdout] 122 | RGB, [INFO] [stdout] | ^^^ [INFO] [stdout] 123 | Palette, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 124 | GrayscaleAlpha, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] 125 | RGBAlpha, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `dimension` and `bit_depth` are never read [INFO] [stdout] --> src/structs.rs:156:9 [INFO] [stdout] | [INFO] [stdout] 153 | pub struct PNG { [INFO] [stdout] | --- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 156 | pub dimension: (u32, u32), [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 157 | pub bit_depth: u8, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `PNG` 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 function `from_file` is never used [INFO] [stdout] --> src/structs.rs:212:12 [INFO] [stdout] | [INFO] [stdout] 163 | impl PNG { [INFO] [stdout] | -------- associated function in this implementation [INFO] [stdout] ... [INFO] [stdout] 212 | pub fn from_file(filepath: &str) -> Result { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `get_chunk` is never used [INFO] [stdout] --> src/structs.rs:343:4 [INFO] [stdout] | [INFO] [stdout] 343 | fn get_chunk(buffer: &mut Iter) -> (Chunk, usize) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `bytes_to_u32` is never used [INFO] [stdout] --> src/structs.rs:365:4 [INFO] [stdout] | [INFO] [stdout] 365 | fn bytes_to_u32(bytes: &[u8]) -> u32 { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `bytes_to_ascii` is never used [INFO] [stdout] --> src/structs.rs:369:4 [INFO] [stdout] | [INFO] [stdout] 369 | fn bytes_to_ascii(bytes: &[u8]) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `take_bytes` is never used [INFO] [stdout] --> src/structs.rs:373:4 [INFO] [stdout] | [INFO] [stdout] 373 | fn take_bytes(buffer: &mut Iter, count: u32) -> Vec { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.14s [INFO] running `Command { std: "docker" "inspect" "e4658fee20f279008b5d9938ed9e62834e2ad207fc5c8c35d042ecc5577ca9e7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e4658fee20f279008b5d9938ed9e62834e2ad207fc5c8c35d042ecc5577ca9e7", kill_on_drop: false }` [INFO] [stdout] e4658fee20f279008b5d9938ed9e62834e2ad207fc5c8c35d042ecc5577ca9e7