[INFO] cloning repository https://github.com/Roja-Eswaran/Rust-WASM-Steganography [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Roja-Eswaran/Rust-WASM-Steganography" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRoja-Eswaran%2FRust-WASM-Steganography", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRoja-Eswaran%2FRust-WASM-Steganography'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 23d8f5100f9f43c73358ba442cda6034e47a8778 [INFO] checking Roja-Eswaran/Rust-WASM-Steganography against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRoja-Eswaran%2FRust-WASM-Steganography" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Roja-Eswaran/Rust-WASM-Steganography on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Roja-Eswaran/Rust-WASM-Steganography [INFO] finished tweaking git repo https://github.com/Roja-Eswaran/Rust-WASM-Steganography [INFO] tweaked toml for git repo https://github.com/Roja-Eswaran/Rust-WASM-Steganography written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/Roja-Eswaran/Rust-WASM-Steganography 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded wasm-bindgen-macro v0.2.60 [INFO] [stderr] Downloaded wasm-bindgen-shared v0.2.60 [INFO] [stderr] Downloaded wasm-bindgen-backend v0.2.60 [INFO] [stderr] Downloaded wasm-bindgen-macro-support v0.2.60 [INFO] [stderr] Downloaded proc-macro2 v1.0.10 [INFO] [stderr] Downloaded js-sys v0.3.37 [INFO] [stderr] Downloaded bumpalo v3.2.1 [INFO] [stderr] Downloaded wasm-bindgen v0.2.60 [INFO] [stderr] Downloaded web-sys v0.3.37 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] cefd4e4e9a53aa7c7d1028de1a3d6e274af16212c1930cd0d161ad5752039976 [INFO] running `Command { std: "docker" "start" "-a" "cefd4e4e9a53aa7c7d1028de1a3d6e274af16212c1930cd0d161ad5752039976", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cefd4e4e9a53aa7c7d1028de1a3d6e274af16212c1930cd0d161ad5752039976", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cefd4e4e9a53aa7c7d1028de1a3d6e274af16212c1930cd0d161ad5752039976", kill_on_drop: false }` [INFO] [stdout] cefd4e4e9a53aa7c7d1028de1a3d6e274af16212c1930cd0d161ad5752039976 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4a493efe87974bb542a7bb0998bfd439967a60795d2138e16b7660ad9b109718 [INFO] running `Command { std: "docker" "start" "-a" "4a493efe87974bb542a7bb0998bfd439967a60795d2138e16b7660ad9b109718", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.10 [INFO] [stderr] Compiling syn v1.0.17 [INFO] [stderr] Compiling wasm-bindgen-shared v0.2.60 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling bumpalo v3.2.1 [INFO] [stderr] Compiling wasm-bindgen v0.2.60 [INFO] [stderr] Checking futures v0.1.29 [INFO] [stderr] Checking scoped-tls v1.0.0 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling wasm-bindgen-test-macro v0.2.50 [INFO] [stderr] Compiling quote v1.0.3 [INFO] [stderr] Compiling wasm-bindgen-backend v0.2.60 [INFO] [stderr] Compiling wasm-bindgen-macro-support v0.2.60 [INFO] [stderr] Compiling wasm-bindgen-macro v0.2.60 [INFO] [stderr] Checking js-sys v0.3.37 [INFO] [stderr] Checking console_error_panic_hook v0.1.6 [INFO] [stderr] Checking wasm-ppm v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/lib.rs:127:8 [INFO] [stdout] | [INFO] [stdout] 127 | if (header_error == 1) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 127 - if (header_error == 1) { [INFO] [stdout] 127 + if header_error == 1 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/lib.rs:261:8 [INFO] [stdout] | [INFO] [stdout] 261 | if (header_error == 1) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 261 - if (header_error == 1) { [INFO] [stdout] 261 + if header_error == 1 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/lib.rs:291:12 [INFO] [stdout] | [INFO] [stdout] 291 | if (content_error == 1) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 291 - if (content_error == 1) { [INFO] [stdout] 291 + if content_error == 1 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/lib.rs:309:34 [INFO] [stdout] | [INFO] [stdout] 309 | let mut possible_character = (&ppm.pixels.len() / 8) ; [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 309 - let mut possible_character = (&ppm.pixels.len() / 8) ; [INFO] [stdout] 309 + let mut possible_character = &ppm.pixels.len() / 8 ; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/lib.rs:314:8 [INFO] [stdout] | [INFO] [stdout] 314 | if (message.chars().count() > possible_character - 1) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 314 - if (message.chars().count() > possible_character - 1) { [INFO] [stdout] 314 + if message.chars().count() > possible_character - 1 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/lib.rs:337:8 [INFO] [stdout] | [INFO] [stdout] 337 | if (start_index < *ppm_length) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 337 - if (start_index < *ppm_length) { [INFO] [stdout] 337 + if start_index < *ppm_length { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `error` [INFO] [stdout] --> src/lib.rs:62:13 [INFO] [stdout] | [INFO] [stdout] 62 | let mut error = vec![0, 0]; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:62:9 [INFO] [stdout] | [INFO] [stdout] 62 | let mut error = vec![0, 0]; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `error` [INFO] [stdout] --> src/lib.rs:177:13 [INFO] [stdout] | [INFO] [stdout] 177 | let mut error = vec![0, 0]; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:177:9 [INFO] [stdout] | [INFO] [stdout] 177 | let mut error = vec![0, 0]; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:301:9 [INFO] [stdout] | [INFO] [stdout] 301 | let mut return_encode: Result, String>; [INFO] [stdout] | ----^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:309:9 [INFO] [stdout] | [INFO] [stdout] 309 | let mut possible_character = (&ppm.pixels.len() / 8) ; [INFO] [stdout] | ----^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:312:9 [INFO] [stdout] | [INFO] [stdout] 312 | let mut ppm_length = &ppm.pixels.len(); [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:370:9 [INFO] [stdout] | [INFO] [stdout] 370 | let mut final_decode: Result; [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:430:30 [INFO] [stdout] | [INFO] [stdout] 430 | fn parse_maximum_color_value(mut f: &mut impl Read) -> Result, PPMError> { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `set_panic_hook` is never used [INFO] [stdout] --> src/utils.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn set_panic_hook() { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:139:5 [INFO] [stdout] | [INFO] [stdout] 139 | reader_bytes.read_to_end(&mut pixels); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 139 | let _ = reader_bytes.read_to_end(&mut pixels); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:250:5 [INFO] [stdout] | [INFO] [stdout] 250 | reader_bytes.read_to_end(&mut pixels); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 250 | let _ = reader_bytes.read_to_end(&mut pixels); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 18 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking wasm-bindgen-futures v0.3.27 [INFO] [stderr] Checking wasm-bindgen-test v0.2.50 [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/lib.rs:127:8 [INFO] [stdout] | [INFO] [stdout] 127 | if (header_error == 1) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 127 - if (header_error == 1) { [INFO] [stdout] 127 + if header_error == 1 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/lib.rs:261:8 [INFO] [stdout] | [INFO] [stdout] 261 | if (header_error == 1) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 261 - if (header_error == 1) { [INFO] [stdout] 261 + if header_error == 1 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/lib.rs:291:12 [INFO] [stdout] | [INFO] [stdout] 291 | if (content_error == 1) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 291 - if (content_error == 1) { [INFO] [stdout] 291 + if content_error == 1 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/lib.rs:309:34 [INFO] [stdout] | [INFO] [stdout] 309 | let mut possible_character = (&ppm.pixels.len() / 8) ; [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 309 - let mut possible_character = (&ppm.pixels.len() / 8) ; [INFO] [stdout] 309 + let mut possible_character = &ppm.pixels.len() / 8 ; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/lib.rs:314:8 [INFO] [stdout] | [INFO] [stdout] 314 | if (message.chars().count() > possible_character - 1) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 314 - if (message.chars().count() > possible_character - 1) { [INFO] [stdout] 314 + if message.chars().count() > possible_character - 1 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/lib.rs:337:8 [INFO] [stdout] | [INFO] [stdout] 337 | if (start_index < *ppm_length) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 337 - if (start_index < *ppm_length) { [INFO] [stdout] 337 + if start_index < *ppm_length { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `error` [INFO] [stdout] --> src/lib.rs:62:13 [INFO] [stdout] | [INFO] [stdout] 62 | let mut error = vec![0, 0]; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:62:9 [INFO] [stdout] | [INFO] [stdout] 62 | let mut error = vec![0, 0]; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `error` [INFO] [stdout] --> src/lib.rs:177:13 [INFO] [stdout] | [INFO] [stdout] 177 | let mut error = vec![0, 0]; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:177:9 [INFO] [stdout] | [INFO] [stdout] 177 | let mut error = vec![0, 0]; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:301:9 [INFO] [stdout] | [INFO] [stdout] 301 | let mut return_encode: Result, String>; [INFO] [stdout] | ----^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:309:9 [INFO] [stdout] | [INFO] [stdout] 309 | let mut possible_character = (&ppm.pixels.len() / 8) ; [INFO] [stdout] | ----^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:312:9 [INFO] [stdout] | [INFO] [stdout] 312 | let mut ppm_length = &ppm.pixels.len(); [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:370:9 [INFO] [stdout] | [INFO] [stdout] 370 | let mut final_decode: Result; [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:430:30 [INFO] [stdout] | [INFO] [stdout] 430 | fn parse_maximum_color_value(mut f: &mut impl Read) -> Result, PPMError> { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `set_panic_hook` is never used [INFO] [stdout] --> src/utils.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn set_panic_hook() { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:139:5 [INFO] [stdout] | [INFO] [stdout] 139 | reader_bytes.read_to_end(&mut pixels); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 139 | let _ = reader_bytes.read_to_end(&mut pixels); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:250:5 [INFO] [stdout] | [INFO] [stdout] 250 | reader_bytes.read_to_end(&mut pixels); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 250 | let _ = reader_bytes.read_to_end(&mut pixels); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 18 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.29s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.60 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] running `Command { std: "docker" "inspect" "4a493efe87974bb542a7bb0998bfd439967a60795d2138e16b7660ad9b109718", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4a493efe87974bb542a7bb0998bfd439967a60795d2138e16b7660ad9b109718", kill_on_drop: false }` [INFO] [stdout] 4a493efe87974bb542a7bb0998bfd439967a60795d2138e16b7660ad9b109718 [INFO] checking Roja-Eswaran/Rust-WASM-Steganography against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRoja-Eswaran%2FRust-WASM-Steganography" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Roja-Eswaran/Rust-WASM-Steganography on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Roja-Eswaran/Rust-WASM-Steganography [INFO] finished tweaking git repo https://github.com/Roja-Eswaran/Rust-WASM-Steganography [INFO] tweaked toml for git repo https://github.com/Roja-Eswaran/Rust-WASM-Steganography written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/Roja-Eswaran/Rust-WASM-Steganography 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e6b07a9e49ebd924ed9723eb7505ec019e5a4a36113380d89ee3ccc576b06c23 [INFO] running `Command { std: "docker" "start" "-a" "e6b07a9e49ebd924ed9723eb7505ec019e5a4a36113380d89ee3ccc576b06c23", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e6b07a9e49ebd924ed9723eb7505ec019e5a4a36113380d89ee3ccc576b06c23", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e6b07a9e49ebd924ed9723eb7505ec019e5a4a36113380d89ee3ccc576b06c23", kill_on_drop: false }` [INFO] [stdout] e6b07a9e49ebd924ed9723eb7505ec019e5a4a36113380d89ee3ccc576b06c23 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 988ed98d2bb21170abe213720558ef5b78591d740ca908a749733fcb61293fd3 [INFO] running `Command { std: "docker" "start" "-a" "988ed98d2bb21170abe213720558ef5b78591d740ca908a749733fcb61293fd3", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.10 [INFO] [stderr] Compiling syn v1.0.17 [INFO] [stderr] Compiling wasm-bindgen-shared v0.2.60 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling bumpalo v3.2.1 [INFO] [stderr] Compiling wasm-bindgen v0.2.60 [INFO] [stderr] Checking futures v0.1.29 [INFO] [stderr] Checking scoped-tls v1.0.0 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling wasm-bindgen-test-macro v0.2.50 [INFO] [stderr] Compiling quote v1.0.3 [INFO] [stderr] Compiling wasm-bindgen-backend v0.2.60 [INFO] [stderr] Compiling wasm-bindgen-macro-support v0.2.60 [INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/wasm-bindgen-macro-support-0.2.60/src/parser.rs:251:17 [INFO] [stdout] | [INFO] [stdout] 251 | / if input.parse::().is_ok() { [INFO] [stdout] 252 | | let ident = input.parse::()?.0; [INFO] [stdout] 253 | | return Ok(BindgenAttr::$variant(attr_span, Some(ident))) [INFO] [stdout] 254 | | } else { [INFO] [stdout] 255 | | return Ok(BindgenAttr::$variant(attr_span, None)); [INFO] [stdout] 256 | | } [INFO] [stdout] | |_________________^ cannot satisfy `_ -> _` [INFO] [stdout] ... [INFO] [stdout] 282 | attrgen!(parsers); [INFO] [stdout] | ----------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `parsers` which comes from the expansion of the macro `attrgen` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0284`. [INFO] [stdout] [INFO] [stderr] error: could not compile `wasm-bindgen-macro-support` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "988ed98d2bb21170abe213720558ef5b78591d740ca908a749733fcb61293fd3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "988ed98d2bb21170abe213720558ef5b78591d740ca908a749733fcb61293fd3", kill_on_drop: false }` [INFO] [stdout] 988ed98d2bb21170abe213720558ef5b78591d740ca908a749733fcb61293fd3