[INFO] updating cached repository https://github.com/liamoc/tesserae [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }` [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a43e56aa7312c1710160acbbe25d383d91046951 [INFO] testing liamoc/tesserae against beta-2020-07-24 for beta-1.46-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliamoc%2Ftesserae" "/workspace/builds/worker-3/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/liamoc/tesserae on toolchain beta-2020-07-24 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/liamoc/tesserae [INFO] finished tweaking git repo https://github.com/liamoc/tesserae [INFO] tweaked toml for git repo https://github.com/liamoc/tesserae written to /workspace/builds/worker-3/source/Cargo.toml [INFO] crate git repo https://github.com/liamoc/tesserae already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] error: the lock file /workspace/builds/worker-3/source/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag. [INFO] the lockfile is outdated, regenerating it [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e6f853e5595bab35bfc8efe49a05012e53f57841e651727247a776846cc7291c [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "e6f853e5595bab35bfc8efe49a05012e53f57841e651727247a776846cc7291c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e6f853e5595bab35bfc8efe49a05012e53f57841e651727247a776846cc7291c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e6f853e5595bab35bfc8efe49a05012e53f57841e651727247a776846cc7291c", kill_on_drop: false }` [INFO] [stdout] e6f853e5595bab35bfc8efe49a05012e53f57841e651727247a776846cc7291c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e7a5820d58783b70c53e2e42d1c7e56acb73424a674f030af4225e2f7d7330e5 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "e7a5820d58783b70c53e2e42d1c7e56acb73424a674f030af4225e2f7d7330e5", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.74 [INFO] [stderr] Compiling sdl2 v0.33.0 [INFO] [stderr] Compiling sdl2-sys v0.33.0 [INFO] [stderr] Compiling tesserae v0.3.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around const expression [INFO] [stdout] --> src/lib.rs:583:40 [INFO] [stdout] | [INFO] [stdout] 583 | let mut pixel_data = [0 as u8; (64 * 4)]; [INFO] [stdout] | ^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 10.13s [INFO] running `Command { std: "docker" "inspect" "e7a5820d58783b70c53e2e42d1c7e56acb73424a674f030af4225e2f7d7330e5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e7a5820d58783b70c53e2e42d1c7e56acb73424a674f030af4225e2f7d7330e5", kill_on_drop: false }` [INFO] [stdout] e7a5820d58783b70c53e2e42d1c7e56acb73424a674f030af4225e2f7d7330e5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] aae9561b1383ca592741a7424f5423c1f34a073631196bb989e0e37a7cfc41f2 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "aae9561b1383ca592741a7424f5423c1f34a073631196bb989e0e37a7cfc41f2", kill_on_drop: false }` [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling bit_reverse v0.1.8 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stdout] warning: unnecessary parentheses around const expression [INFO] [stdout] --> src/lib.rs:583:40 [INFO] [stdout] | [INFO] [stdout] 583 | let mut pixel_data = [0 as u8; (64 * 4)]; [INFO] [stdout] | ^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling clap v2.33.2 [INFO] [stderr] Compiling tesserae v0.3.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around const expression [INFO] [stdout] --> src/lib.rs:583:40 [INFO] [stdout] | [INFO] [stdout] 583 | let mut pixel_data = [0 as u8; (64 * 4)]; [INFO] [stdout] | ^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 16.61s [INFO] running `Command { std: "docker" "inspect" "aae9561b1383ca592741a7424f5423c1f34a073631196bb989e0e37a7cfc41f2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "aae9561b1383ca592741a7424f5423c1f34a073631196bb989e0e37a7cfc41f2", kill_on_drop: false }` [INFO] [stdout] aae9561b1383ca592741a7424f5423c1f34a073631196bb989e0e37a7cfc41f2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 50d6058a501a48d7207d3a2093d0f6b5763d764487039367a28f5b4db76182ee [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "50d6058a501a48d7207d3a2093d0f6b5763d764487039367a28f5b4db76182ee", kill_on_drop: false }` [INFO] [stderr] warning: unnecessary parentheses around const expression [INFO] [stderr] --> src/lib.rs:583:40 [INFO] [stderr] | [INFO] [stderr] 583 | let mut pixel_data = [0 as u8; (64 * 4)]; [INFO] [stderr] | ^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around const expression [INFO] [stderr] --> src/lib.rs:583:40 [INFO] [stderr] | [INFO] [stderr] 583 | let mut pixel_data = [0 as u8; (64 * 4)]; [INFO] [stderr] | ^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.09s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/tesserae-e2efc2bdb7a961cf [INFO] [stdout] [INFO] [stderr] Doc-tests tesserae [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 6 tests [INFO] [stdout] test src/lib.rs - TileSet::load_from (line 169) ... FAILED [INFO] [stdout] test src/lib.rs - Graphic<()>::blank (line 370) ... FAILED [INFO] [stdout] test src/lib.rs - Graphic<()>::load_from (line 329) ... FAILED [INFO] [stdout] test src/lib.rs - Graphic<()>::load_file (line 317) ... FAILED [INFO] [stdout] test src/lib.rs - Graphic<()>::textured (line 381) ... FAILED [INFO] [stdout] test src/lib.rs - Graphic<()>::tile_cache_textured (line 400) ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - TileSet::load_from (line 169) stdout ---- [INFO] [stdout] error: couldn't read src/tile_set: No such file or directory (os error 2) [INFO] [stdout] --> src/lib.rs:170:10 [INFO] [stdout] | [INFO] [stdout] 3 | let ts = include_bytes!("tile_set"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `TileSet` [INFO] [stdout] --> src/lib.rs:171:1 [INFO] [stdout] | [INFO] [stdout] 4 | TileSet::load_from(Cursor::new(&ts[..])) [INFO] [stdout] | ^^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing this struct [INFO] [stdout] | [INFO] [stdout] 2 | use tesserae::TileSet; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `Cursor` [INFO] [stdout] --> src/lib.rs:171:20 [INFO] [stdout] | [INFO] [stdout] 4 | TileSet::load_from(Cursor::new(&ts[..])) [INFO] [stdout] | ^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing one of these items [INFO] [stdout] | [INFO] [stdout] 2 | use sdl2::mouse::Cursor; [INFO] [stdout] | [INFO] [stdout] 2 | use std::collections::linked_list::Cursor; [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::Cursor; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] error: aborting due to 3 previous errors [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0433`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] ---- src/lib.rs - Graphic<()>::blank (line 370) stdout ---- [INFO] [stdout] error: expected one of `.`, `;`, `?`, `}`, or an operator, found `Graphic` [INFO] [stdout] --> src/lib.rs:373:1 [INFO] [stdout] | [INFO] [stdout] 3 | Graphic::blank(8,12) [INFO] [stdout] | - expected one of `.`, `;`, `?`, `}`, or an operator [INFO] [stdout] 4 | // same as [INFO] [stdout] 5 | Graphic::solid(8,12,Default::default()) [INFO] [stdout] | ^^^^^^^ unexpected token [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] ---- src/lib.rs - Graphic<()>::load_from (line 329) stdout ---- [INFO] [stdout] error: expected `;`, found `}` [INFO] [stdout] --> src/lib.rs:330:69 [INFO] [stdout] | [INFO] [stdout] 3 | let g = Graphic::load_from(Cursor::new(&include_bytes!("file")[..])) [INFO] [stdout] | ^ help: add `;` here [INFO] [stdout] 4 | } [INFO] [stdout] | - unexpected token [INFO] [stdout] [INFO] [stdout] error: couldn't read src/file: No such file or directory (os error 2) [INFO] [stdout] --> src/lib.rs:330:41 [INFO] [stdout] | [INFO] [stdout] 3 | let g = Graphic::load_from(Cursor::new(&include_bytes!("file")[..])) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `Graphic` [INFO] [stdout] --> src/lib.rs:330:9 [INFO] [stdout] | [INFO] [stdout] 3 | let g = Graphic::load_from(Cursor::new(&include_bytes!("file")[..])) [INFO] [stdout] | ^^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing this struct [INFO] [stdout] | [INFO] [stdout] 2 | use tesserae::Graphic; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `Cursor` [INFO] [stdout] --> src/lib.rs:330:28 [INFO] [stdout] | [INFO] [stdout] 3 | let g = Graphic::load_from(Cursor::new(&include_bytes!("file")[..])) [INFO] [stdout] | ^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing one of these items [INFO] [stdout] | [INFO] [stdout] 2 | use sdl2::mouse::Cursor; [INFO] [stdout] | [INFO] [stdout] 2 | use std::collections::linked_list::Cursor; [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::Cursor; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] error: aborting due to 4 previous errors [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0433`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] ---- src/lib.rs - Graphic<()>::load_file (line 317) stdout ---- [INFO] [stdout] error: expected one of `.`, `;`, `?`, `}`, or an operator, found `Graphic` [INFO] [stdout] --> src/lib.rs:320:1 [INFO] [stdout] | [INFO] [stdout] 3 | Graphic::load_file(path) [INFO] [stdout] | - expected one of `.`, `;`, `?`, `}`, or an operator [INFO] [stdout] 4 | // same as [INFO] [stdout] 5 | Graphic::load_from(File::open(path)?) [INFO] [stdout] | ^^^^^^^ unexpected token [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] ---- src/lib.rs - Graphic<()>::textured (line 381) stdout ---- [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `Graphics` [INFO] [stdout] --> src/lib.rs:382:9 [INFO] [stdout] | [INFO] [stdout] 3 | let g = Graphics::load_file("path")?.textured(texture_creator); [INFO] [stdout] | ^^^^^^^^ use of undeclared type or module `Graphics` [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find value `texture_creator` in this scope [INFO] [stdout] --> src/lib.rs:382:47 [INFO] [stdout] | [INFO] [stdout] 3 | let g = Graphics::load_file("path")?.textured(texture_creator); [INFO] [stdout] | ^^^^^^^^^^^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `std::ops::Try`) [INFO] [stdout] --> src/lib.rs:382:9 [INFO] [stdout] | [INFO] [stdout] 2 | / fn main() { [INFO] [stdout] 3 | | let g = Graphics::load_file("path")?.textured(texture_creator); [INFO] [stdout] | | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a function that returns `()` [INFO] [stdout] 4 | | } [INFO] [stdout] | |_- this function should return `Result` or `Option` to accept `?` [INFO] [stdout] | [INFO] [stdout] = help: the trait `std::ops::Try` is not implemented for `()` [INFO] [stdout] = note: required by `std::ops::Try::from_error` [INFO] [stdout] [INFO] [stdout] error: aborting due to 3 previous errors [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0277, E0425, E0433. [INFO] [stdout] For more information about an error, try `rustc --explain E0277`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] ---- src/lib.rs - Graphic<()>::tile_cache_textured (line 400) stdout ---- [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `Graphics` [INFO] [stdout] --> src/lib.rs:401:9 [INFO] [stdout] | [INFO] [stdout] 3 | let g = Graphics::load_file("path")?.tile_cache_textured(texture_creator); [INFO] [stdout] | ^^^^^^^^ use of undeclared type or module `Graphics` [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find value `texture_creator` in this scope [INFO] [stdout] --> src/lib.rs:401:58 [INFO] [stdout] | [INFO] [stdout] 3 | let g = Graphics::load_file("path")?.tile_cache_textured(texture_creator); [INFO] [stdout] | ^^^^^^^^^^^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `std::ops::Try`) [INFO] [stdout] --> src/lib.rs:401:9 [INFO] [stdout] | [INFO] [stdout] 2 | / fn main() { [INFO] [stdout] 3 | | let g = Graphics::load_file("path")?.tile_cache_textured(texture_creator); [INFO] [stdout] | | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a function that returns `()` [INFO] [stdout] 4 | | } [INFO] [stdout] | |_- this function should return `Result` or `Option` to accept `?` [INFO] [stdout] | [INFO] [stdout] = help: the trait `std::ops::Try` is not implemented for `()` [INFO] [stdout] = note: required by `std::ops::Try::from_error` [INFO] [stdout] [INFO] [stdout] error: aborting due to 3 previous errors [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0277, E0425, E0433. [INFO] [stdout] For more information about an error, try `rustc --explain E0277`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/lib.rs - Graphic<()>::blank (line 370) [INFO] [stdout] src/lib.rs - Graphic<()>::load_file (line 317) [INFO] [stdout] src/lib.rs - Graphic<()>::load_from (line 329) [INFO] [stdout] src/lib.rs - Graphic<()>::textured (line 381) [INFO] [stdout] src/lib.rs - Graphic<()>::tile_cache_textured (line 400) [INFO] [stdout] src/lib.rs - TileSet::load_from (line 169) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 0 passed; 6 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--doc' [INFO] running `Command { std: "docker" "inspect" "50d6058a501a48d7207d3a2093d0f6b5763d764487039367a28f5b4db76182ee", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "50d6058a501a48d7207d3a2093d0f6b5763d764487039367a28f5b4db76182ee", kill_on_drop: false }` [INFO] [stdout] 50d6058a501a48d7207d3a2093d0f6b5763d764487039367a28f5b4db76182ee