[INFO] cloning repository https://github.com/sergey-zhidkov/pngme [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sergey-zhidkov/pngme" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsergey-zhidkov%2Fpngme", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsergey-zhidkov%2Fpngme'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 001214eb8c45081c3e9bf2ce1a38c272454db739 [INFO] checking sergey-zhidkov/pngme against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsergey-zhidkov%2Fpngme" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/sergey-zhidkov/pngme [INFO] finished tweaking git repo https://github.com/sergey-zhidkov/pngme [INFO] tweaked toml for git repo https://github.com/sergey-zhidkov/pngme written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/sergey-zhidkov/pngme on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/sergey-zhidkov/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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] dc5da29a3654bae748f93023d7edbc46e7b6b4e7aab6847d5c735bfeaa39e65f [INFO] running `Command { std: "docker" "start" "-a" "dc5da29a3654bae748f93023d7edbc46e7b6b4e7aab6847d5c735bfeaa39e65f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "dc5da29a3654bae748f93023d7edbc46e7b6b4e7aab6847d5c735bfeaa39e65f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dc5da29a3654bae748f93023d7edbc46e7b6b4e7aab6847d5c735bfeaa39e65f", kill_on_drop: false }` [INFO] [stdout] dc5da29a3654bae748f93023d7edbc46e7b6b4e7aab6847d5c735bfeaa39e65f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a998f97dcd5914c99b4ca9e5663160b2e1ee93ddfc7b5d72c0a9ad2af2d78e57 [INFO] running `Command { std: "docker" "start" "-a" "a998f97dcd5914c99b4ca9e5663160b2e1ee93ddfc7b5d72c0a9ad2af2d78e57", kill_on_drop: false }` [INFO] [stderr] Compiling anyhow v1.0.64 [INFO] [stderr] Checking crc-catalog v2.4.0 [INFO] [stderr] Checking crc v3.0.1 [INFO] [stderr] Checking pngme v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `BufReader` [INFO] [stdout] --> src/chunk.rs:3:16 [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::{ BufReader, 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: `Read` [INFO] [stdout] --> src/chunk.rs:3:27 [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::{ BufReader, Read }; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `CRC` is never used [INFO] [stdout] --> src/chunk.rs:9:7 [INFO] [stdout] | [INFO] [stdout] 9 | const CRC: Crc = Crc::::new(&CRC_32_ISO_HDLC); [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` is never constructed [INFO] [stdout] --> src/chunk.rs:14:12 [INFO] [stdout] | [INFO] [stdout] 14 | pub struct Chunk { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple associated items are never used [INFO] [stdout] --> src/chunk.rs:22:12 [INFO] [stdout] | [INFO] [stdout] 21 | impl Chunk { [INFO] [stdout] | ---------- associated items in this implementation [INFO] [stdout] 22 | pub fn new(chunk_type: ChunkType, data: Vec) -> Chunk { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 33 | pub fn get_bytes_for_crc(chunk_type: &ChunkType, data: &Vec) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 41 | pub fn length(&self) -> u32 { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 46 | pub fn chunk_type(&self) -> &ChunkType { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 51 | pub fn data(&self) -> &[u8] { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 56 | pub fn crc(&self) -> u32 { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 62 | pub fn data_as_string(&self) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 72 | pub fn as_bytes(&self) -> Vec { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `ChunkType` is never constructed [INFO] [stdout] --> src/chunk_type.rs:10:12 [INFO] [stdout] | [INFO] [stdout] 10 | pub struct ChunkType { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple associated items are never used [INFO] [stdout] --> src/chunk_type.rs:16:12 [INFO] [stdout] | [INFO] [stdout] 14 | impl ChunkType { [INFO] [stdout] | -------------- associated items in this implementation [INFO] [stdout] 15 | /// Returns the raw bytes contained in this chunk [INFO] [stdout] 16 | pub fn bytes(&self) -> [u8; 4] { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 21 | pub fn is_critical(&self) -> bool { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 26 | pub fn is_public(&self) -> bool { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 31 | pub fn is_reserved_bit_valid(&self) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 36 | pub fn is_safe_to_copy(&self) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 42 | pub fn is_valid(&self) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 47 | pub fn is_valid_byte(byte: u8) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: std::result::Result, Infallible> [INFO] [stdout] --> src/chunk_type.rs:63:43 [INFO] [stdout] | [INFO] [stdout] 63 | write!(f, "{}", String::from_utf8(self.data.try_into().unwrap()).unwrap()) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `pngme` (bin "pngme") due to 1 previous error; 7 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unused import: `BufReader` [INFO] [stdout] --> src/chunk.rs:3:16 [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::{ BufReader, 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: `Read` [INFO] [stdout] --> src/chunk.rs:3:27 [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::{ BufReader, Read }; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `as_bytes` is never used [INFO] [stdout] --> src/chunk.rs:72:12 [INFO] [stdout] | [INFO] [stdout] 21 | impl Chunk { [INFO] [stdout] | ---------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 72 | pub fn as_bytes(&self) -> Vec { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `is_valid_byte` is never used [INFO] [stdout] --> src/chunk_type.rs:47:12 [INFO] [stdout] | [INFO] [stdout] 14 | impl ChunkType { [INFO] [stdout] | -------------- associated function in this implementation [INFO] [stdout] ... [INFO] [stdout] 47 | pub fn is_valid_byte(byte: u8) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: std::result::Result, Infallible> [INFO] [stdout] --> src/chunk_type.rs:63:43 [INFO] [stdout] | [INFO] [stdout] 63 | write!(f, "{}", String::from_utf8(self.data.try_into().unwrap()).unwrap()) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `pngme` (bin "pngme" test) due to 1 previous error; 4 warnings emitted [INFO] running `Command { std: "docker" "inspect" "a998f97dcd5914c99b4ca9e5663160b2e1ee93ddfc7b5d72c0a9ad2af2d78e57", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a998f97dcd5914c99b4ca9e5663160b2e1ee93ddfc7b5d72c0a9ad2af2d78e57", kill_on_drop: false }` [INFO] [stdout] a998f97dcd5914c99b4ca9e5663160b2e1ee93ddfc7b5d72c0a9ad2af2d78e57