[INFO] cloning repository https://github.com/zainsubhani/CourseraRust-DukeUniversity
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zainsubhani/CourseraRust-DukeUniversity" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzainsubhani%2FCourseraRust-DukeUniversity", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzainsubhani%2FCourseraRust-DukeUniversity'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f40871e5720818d71277b595fdb6bd0e61e6ef8c
[INFO] checking zainsubhani/CourseraRust-DukeUniversity against master#82310651b93a594a3fd69015e1562186a080d94c for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzainsubhani%2FCourseraRust-DukeUniversity" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/zainsubhani/CourseraRust-DukeUniversity
[INFO] finished tweaking git repo https://github.com/zainsubhani/CourseraRust-DukeUniversity
[INFO] tweaked toml for git repo https://github.com/zainsubhani/CourseraRust-DukeUniversity written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/zainsubhani/CourseraRust-DukeUniversity on toolchain 82310651b93a594a3fd69015e1562186a080d94c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/zainsubhani/CourseraRust-DukeUniversity 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" "+82310651b93a594a3fd69015e1562186a080d94c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] faf00ce7980bfbb732db5b5dda8b28bf15121e8f33e7f57112baeb6e36e3f971
[INFO] running `Command { std: "docker" "start" "-a" "faf00ce7980bfbb732db5b5dda8b28bf15121e8f33e7f57112baeb6e36e3f971", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "faf00ce7980bfbb732db5b5dda8b28bf15121e8f33e7f57112baeb6e36e3f971", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "faf00ce7980bfbb732db5b5dda8b28bf15121e8f33e7f57112baeb6e36e3f971", kill_on_drop: false }`
[INFO] [stdout] faf00ce7980bfbb732db5b5dda8b28bf15121e8f33e7f57112baeb6e36e3f971
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f54a17ac7317bf9ede10228f3765046b4432ef2fcea4aa3710df6bc2ac711217
[INFO] running `Command { std: "docker" "start" "-a" "f54a17ac7317bf9ede10228f3765046b4432ef2fcea4aa3710df6bc2ac711217", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_fundamentals_duke_university v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find value `kb` in this scope
[INFO] [stdout]   --> src/topics/FilesizeConverter.rs:16:55
[INFO] [stdout]    |
[INFO] [stdout] 16 |         FileSize::megabytes(_) => format!("{:.2} MB", kb as f64 / 1000.0),
[INFO] [stdout]    |                                                       ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `kb` in this scope
[INFO] [stdout]   --> src/topics/FilesizeConverter.rs:17:55
[INFO] [stdout]    |
[INFO] [stdout] 17 |         FileSize::gigabytes(_) => format!("{:.2} GB", kb as f64 / 1000.0),
[INFO] [stdout]    |                                                       ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `kb` in this scope
[INFO] [stdout]   --> src/topics/FilesizeConverter.rs:18:55
[INFO] [stdout]    |
[INFO] [stdout] 18 |         FileSize::terabytes(_) => format!("{:.2} TB", kb as f64 / 1000.0),
[INFO] [stdout]    |                                                       ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `bytes` should have an upper camel case name
[INFO] [stdout]  --> src/topics/FilesizeConverter.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     bytes(u16),
[INFO] [stdout]   |     ^^^^^ help: convert the identifier to upper camel case: `Bytes`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `kilobytes` should have an upper camel case name
[INFO] [stdout]  --> src/topics/FilesizeConverter.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     kilobytes(u64),
[INFO] [stdout]   |     ^^^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Kilobytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `megabytes` should have an upper camel case name
[INFO] [stdout]  --> src/topics/FilesizeConverter.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     megabytes(u64),
[INFO] [stdout]   |     ^^^^^^^^^ help: convert the identifier to upper camel case: `Megabytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `gigabytes` should have an upper camel case name
[INFO] [stdout]  --> src/topics/FilesizeConverter.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     gigabytes(u64),
[INFO] [stdout]   |     ^^^^^^^^^ help: convert the identifier to upper camel case: `Gigabytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `terabytes` should have an upper camel case name
[INFO] [stdout]  --> src/topics/FilesizeConverter.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     terabytes(u64),
[INFO] [stdout]   |     ^^^^^^^^^ help: convert the identifier to upper camel case: `Terabytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `kb` in this scope
[INFO] [stdout]   --> src/topics/FilesizeConverter.rs:16:55
[INFO] [stdout]    |
[INFO] [stdout] 16 |         FileSize::megabytes(_) => format!("{:.2} MB", kb as f64 / 1000.0),
[INFO] [stdout]    |                                                       ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `kb` in this scope
[INFO] [stdout]   --> src/topics/FilesizeConverter.rs:17:55
[INFO] [stdout]    |
[INFO] [stdout] 17 |         FileSize::gigabytes(_) => format!("{:.2} GB", kb as f64 / 1000.0),
[INFO] [stdout]    |                                                       ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `kb` in this scope
[INFO] [stdout]   --> src/topics/FilesizeConverter.rs:18:55
[INFO] [stdout]    |
[INFO] [stdout] 18 |         FileSize::terabytes(_) => format!("{:.2} TB", kb as f64 / 1000.0),
[INFO] [stdout]    |                                                       ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `bytes` should have an upper camel case name
[INFO] [stdout]  --> src/topics/FilesizeConverter.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     bytes(u16),
[INFO] [stdout]   |     ^^^^^ help: convert the identifier to upper camel case: `Bytes`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `kilobytes` should have an upper camel case name
[INFO] [stdout]  --> src/topics/FilesizeConverter.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     kilobytes(u64),
[INFO] [stdout]   |     ^^^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Kilobytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `megabytes` should have an upper camel case name
[INFO] [stdout]  --> src/topics/FilesizeConverter.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     megabytes(u64),
[INFO] [stdout]   |     ^^^^^^^^^ help: convert the identifier to upper camel case: `Megabytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `gigabytes` should have an upper camel case name
[INFO] [stdout]  --> src/topics/FilesizeConverter.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     gigabytes(u64),
[INFO] [stdout]   |     ^^^^^^^^^ help: convert the identifier to upper camel case: `Gigabytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `terabytes` should have an upper camel case name
[INFO] [stdout]  --> src/topics/FilesizeConverter.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     terabytes(u64),
[INFO] [stdout]   |     ^^^^^^^^^ help: convert the identifier to upper camel case: `Terabytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/topics/FilesizeConverter.rs:10:36
[INFO] [stdout]    |
[INFO] [stdout] 10 |         0..=999 => FileSize::bytes(size),
[INFO] [stdout]    |                    --------------- ^^^^ expected `u16`, found `u64`
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    arguments to this enum variant are incorrect
[INFO] [stdout]    |
[INFO] [stdout] note: tuple variant defined here
[INFO] [stdout]   --> src/topics/FilesizeConverter.rs:2:5
[INFO] [stdout]    |
[INFO] [stdout] 2  |     bytes(u16),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] help: you can convert a `u64` to a `u16` and panic if the converted value doesn't fit
[INFO] [stdout]    |
[INFO] [stdout] 10 |         0..=999 => FileSize::bytes(size.try_into().unwrap()),
[INFO] [stdout]    |                                        ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0425.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_fundamentals_duke_university` (bin "rust_fundamentals_duke_university" test) due to 4 previous errors; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/topics/FilesizeConverter.rs:10:36
[INFO] [stdout]    |
[INFO] [stdout] 10 |         0..=999 => FileSize::bytes(size),
[INFO] [stdout]    |                    --------------- ^^^^ expected `u16`, found `u64`
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    arguments to this enum variant are incorrect
[INFO] [stdout]    |
[INFO] [stdout] note: tuple variant defined here
[INFO] [stdout]   --> src/topics/FilesizeConverter.rs:2:5
[INFO] [stdout]    |
[INFO] [stdout] 2  |     bytes(u16),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] help: you can convert a `u64` to a `u16` and panic if the converted value doesn't fit
[INFO] [stdout]    |
[INFO] [stdout] 10 |         0..=999 => FileSize::bytes(size.try_into().unwrap()),
[INFO] [stdout]    |                                        ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0425.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_fundamentals_duke_university` (bin "rust_fundamentals_duke_university") due to 4 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "f54a17ac7317bf9ede10228f3765046b4432ef2fcea4aa3710df6bc2ac711217", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f54a17ac7317bf9ede10228f3765046b4432ef2fcea4aa3710df6bc2ac711217", kill_on_drop: false }`
[INFO] [stdout] f54a17ac7317bf9ede10228f3765046b4432ef2fcea4aa3710df6bc2ac711217
