[INFO] cloning repository https://github.com/hangsiaongithub/casio
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hangsiaongithub/casio" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhangsiaongithub%2Fcasio", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhangsiaongithub%2Fcasio'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 207bd0184eb51378a0eaab002df250c7f596039b
[INFO] checking hangsiaongithub/casio against master#9fa580b1175018b0a276b0bc68f9827a106f7260 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhangsiaongithub%2Fcasio" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hangsiaongithub/casio on toolchain 9fa580b1175018b0a276b0bc68f9827a106f7260
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hangsiaongithub/casio
[INFO] finished tweaking git repo https://github.com/hangsiaongithub/casio
[INFO] tweaked toml for git repo https://github.com/hangsiaongithub/casio written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/hangsiaongithub/casio already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "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-13/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[INFO] the lockfile is outdated, regenerating it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" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c6274f95f9277232707e4c554dca2262f1d08e05e303a7b4582860b63081f59
[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" "2c6274f95f9277232707e4c554dca2262f1d08e05e303a7b4582860b63081f59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c6274f95f9277232707e4c554dca2262f1d08e05e303a7b4582860b63081f59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c6274f95f9277232707e4c554dca2262f1d08e05e303a7b4582860b63081f59", kill_on_drop: false }`
[INFO] [stdout] 2c6274f95f9277232707e4c554dca2262f1d08e05e303a7b4582860b63081f59
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b3adbbc600b30116fc97955e29a775984d648ed4409fac314bfb492815ddade9
[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" "b3adbbc600b30116fc97955e29a775984d648ed4409fac314bfb492815ddade9", kill_on_drop: false }`
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[INFO] [stderr]     Checking casio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0583]: file not found for module `subtraction`
[INFO] [stdout]  --> src/operations/mod.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub mod subtraction;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: to create the module `subtraction`, create file "src/operations/subtraction.rs"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `division` should have an upper camel case name
[INFO] [stdout]   --> src/operations/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     division,
[INFO] [stdout]    |     ^^^^^^^^ help: convert the identifier to upper camel case: `Division`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `multiplication` should have an upper camel case name
[INFO] [stdout]   --> src/operations/mod.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     multiplication,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `Multiplication`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `subtraction` should have an upper camel case name
[INFO] [stdout]   --> src/operations/mod.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     subtraction,
[INFO] [stdout]    |     ^^^^^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Subtraction`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `operations::Operation`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use operations::Operation;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0583]: file not found for module `subtraction`
[INFO] [stdout]  --> src/operations/mod.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub mod subtraction;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: to create the module `subtraction`, create file "src/operations/subtraction.rs"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `division` should have an upper camel case name
[INFO] [stdout]   --> src/operations/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     division,
[INFO] [stdout]    |     ^^^^^^^^ help: convert the identifier to upper camel case: `Division`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `multiplication` should have an upper camel case name
[INFO] [stdout]   --> src/operations/mod.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     multiplication,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `Multiplication`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `subtraction` should have an upper camel case name
[INFO] [stdout]   --> src/operations/mod.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     subtraction,
[INFO] [stdout]    |     ^^^^^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Subtraction`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `operations::Operation`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use operations::Operation;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `T` is not an iterator
[INFO] [stdout]  --> src/operations/addition.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 |     for i in values {
[INFO] [stdout]   |              ^^^^^^ `T` is not an iterator
[INFO] [stdout]   |
[INFO] [stdout]   = note: required because of the requirements on the impl of `IntoIterator` for `T`
[INFO] [stdout]   = note: required by `into_iter`
[INFO] [stdout] help: consider restricting type parameter `T`
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn addition<T: Iterator>(values: T) -> T {
[INFO] [stdout]   |              ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `T` is not an iterator
[INFO] [stdout]  --> src/operations/addition.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 |     for i in values {
[INFO] [stdout]   |              ^^^^^^ `T` is not an iterator
[INFO] [stdout]   |
[INFO] [stdout]   = note: required because of the requirements on the impl of `IntoIterator` for `T`
[INFO] [stdout]   = note: required by `into_iter`
[INFO] [stdout] help: consider restricting type parameter `T`
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn addition<T: Iterator>(values: T) -> T {
[INFO] [stdout]   |              ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> src/operations/addition.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 1 |   fn addition<T>(values: T) -> T {
[INFO] [stdout]   |               -                - expected `T` because of return type
[INFO] [stdout]   |               |
[INFO] [stdout]   |               this type parameter
[INFO] [stdout] ...
[INFO] [stdout] 4 | /     for i in values {
[INFO] [stdout] 5 | |         sum = sum + i;
[INFO] [stdout] 6 | |
[INFO] [stdout] 7 | |     }
[INFO] [stdout]   | |_____^ expected type parameter `T`, found `()`
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected type parameter `T`
[INFO] [stdout]                   found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0308, E0583.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> src/operations/addition.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 1 |   fn addition<T>(values: T) -> T {
[INFO] [stdout]   |               -                - expected `T` because of return type
[INFO] [stdout]   |               |
[INFO] [stdout]   |               this type parameter
[INFO] [stdout] ...
[INFO] [stdout] 4 | /     for i in values {
[INFO] [stdout] 5 | |         sum = sum + i;
[INFO] [stdout] 6 | |
[INFO] [stdout] 7 | |     }
[INFO] [stdout]   | |_____^ expected type parameter `T`, found `()`
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected type parameter `T`
[INFO] [stdout]                   found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `casio`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 3 previous errors; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0308, E0583.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "b3adbbc600b30116fc97955e29a775984d648ed4409fac314bfb492815ddade9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3adbbc600b30116fc97955e29a775984d648ed4409fac314bfb492815ddade9", kill_on_drop: false }`
[INFO] [stdout] b3adbbc600b30116fc97955e29a775984d648ed4409fac314bfb492815ddade9