[INFO] cloning repository theatlasroom/rust-learning [INFO] running `"git" "clone" "--bare" "git://github.com/theatlasroom/rust-learning.git" "work/cache/sources/gh/theatlasroom/rust-learning"` [INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/theatlasroom/rust-learning'... [INFO] running `"git" "clone" "work/cache/sources/gh/theatlasroom/rust-learning" "work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/theatlasroom/rust-learning"` [INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/theatlasroom/rust-learning'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/theatlasroom/rust-learning" "work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/theatlasroom/rust-learning"` [INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/theatlasroom/rust-learning'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 7d4a390a3ace3085dbcc821e2fb7899f7a668a1c [INFO] sha for GitHub repo theatlasroom/rust-learning: 7d4a390a3ace3085dbcc821e2fb7899f7a668a1c [INFO] validating manifest of theatlasroom/rust-learning on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of theatlasroom/rust-learning on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing theatlasroom/rust-learning [INFO] finished frobbing theatlasroom/rust-learning [INFO] frobbed toml for theatlasroom/rust-learning written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/theatlasroom/rust-learning/Cargo.toml [INFO] started frobbing theatlasroom/rust-learning [INFO] finished frobbing theatlasroom/rust-learning [INFO] frobbed toml for theatlasroom/rust-learning written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/theatlasroom/rust-learning/Cargo.toml [INFO] crate theatlasroom/rust-learning already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking theatlasroom/rust-learning against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-1/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/theatlasroom/rust-learning:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 1915f737e6f0ee8c63e8617d33d749b369024157718d11dde9a6e7d676cebac3 [INFO] running `"docker" "start" "-a" "1915f737e6f0ee8c63e8617d33d749b369024157718d11dde9a6e7d676cebac3"` [INFO] [stderr] Checking learning v0.1.0 (/opt/crater/workdir) [INFO] [stderr] error: format argument must be a string literal [INFO] [stderr] --> src/bin/primitives.rs:3:14 [INFO] [stderr] | [INFO] [stderr] 3 | println!('\u{0024}'); [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] help: you might be missing a string literal to format with [INFO] [stderr] | [INFO] [stderr] 3 | println!("{}", '\u{0024}'); [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] error: format argument must be a string literal [INFO] [stderr] --> src/bin/primitives.rs:4:14 [INFO] [stderr] | [INFO] [stderr] 4 | println!('\u{00A5}'); [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] help: you might be missing a string literal to format with [INFO] [stderr] | [INFO] [stderr] 4 | println!("{}", '\u{00A5}'); [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] error: format argument must be a string literal [INFO] [stderr] --> src/bin/primitives.rs:5:14 [INFO] [stderr] | [INFO] [stderr] 5 | println!('\u{26A1}'); [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] help: you might be missing a string literal to format with [INFO] [stderr] | [INFO] [stderr] 5 | println!("{}", '\u{26A1}'); [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] error: format argument must be a string literal [INFO] [stderr] --> src/bin/primitives.rs:6:14 [INFO] [stderr] | [INFO] [stderr] 6 | println!('\u{2600}'); [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] help: you might be missing a string literal to format with [INFO] [stderr] | [INFO] [stderr] 6 | println!("{}", '\u{2600}'); [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] error: format argument must be a string literal [INFO] [stderr] --> src/bin/primitives.rs:7:14 [INFO] [stderr] | [INFO] [stderr] 7 | println!('\u{99}'); [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] help: you might be missing a string literal to format with [INFO] [stderr] | [INFO] [stderr] 7 | println!("{}", '\u{99}'); [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] error: aborting due to 5 previous errors [INFO] [stderr] [INFO] [stderr] error: Could not compile `learning`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error[E0530]: match bindings cannot shadow tuple variants [INFO] [stderr] --> src/bin/file_io.rs:28:9 [INFO] [stderr] | [INFO] [stderr] 28 | Err => println!("Error\n{:?}", handle), [INFO] [stderr] | ^^^ cannot be named the same as a tuple variant [INFO] [stderr] [INFO] [stderr] error[E0425]: cannot find value `handle` in this scope [INFO] [stderr] --> src/bin/file_io.rs:28:40 [INFO] [stderr] | [INFO] [stderr] 28 | Err => println!("Error\n{:?}", handle), [INFO] [stderr] | ^^^^^^ not found in this scope [INFO] [stderr] [INFO] [stderr] warning: method is never used: `divide` [INFO] [stderr] --> src/bin/matrix_math.rs:35:5 [INFO] [stderr] | [INFO] [stderr] 35 | fn divide(&self, scalar: f64) -> Matrix2d { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `multiply` [INFO] [stderr] --> src/bin/matrix_math.rs:39:5 [INFO] [stderr] | [INFO] [stderr] 39 | fn multiply(&self, scalar: f64) -> Matrix2d { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `scalar_multiply` [INFO] [stderr] --> src/bin/matrix_math.rs:43:5 [INFO] [stderr] | [INFO] [stderr] 43 | fn scalar_multiply(&self) -> f64 { unimplemented!() } [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `determinant` [INFO] [stderr] --> src/bin/matrix_math.rs:44:5 [INFO] [stderr] | [INFO] [stderr] 44 | fn determinant(&self) -> f64 { unimplemented!() } [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0308]: mismatched types [INFO] [stderr] --> src/bin/file_io.rs:27:9 [INFO] [stderr] | [INFO] [stderr] 26 | let mut handle = match fs::File::open(f){ [INFO] [stderr] | ----------------- this match expression has type `std::result::Result` [INFO] [stderr] 27 | Some(handle) => println!("File\n{:?}", handle), [INFO] [stderr] | ^^^^^^^^^^^^ expected enum `std::result::Result`, found enum `std::option::Option` [INFO] [stderr] | [INFO] [stderr] = note: expected type `std::result::Result` [INFO] [stderr] found type `std::option::Option<_>` [INFO] [stderr] [INFO] [stderr] error: aborting due to 3 previous errors [INFO] [stderr] [INFO] [stderr] Some errors have detailed explanations: E0308, E0425, E0530. [INFO] [stderr] For more information about an error, try `rustc --explain E0308`. [INFO] [stderr] error: Could not compile `learning`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "1915f737e6f0ee8c63e8617d33d749b369024157718d11dde9a6e7d676cebac3"` [INFO] running `"docker" "rm" "-f" "1915f737e6f0ee8c63e8617d33d749b369024157718d11dde9a6e7d676cebac3"` [INFO] [stdout] 1915f737e6f0ee8c63e8617d33d749b369024157718d11dde9a6e7d676cebac3