[INFO] cloning repository https://github.com/Nabil201-ctrl/Rust-exercises
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Nabil201-ctrl/Rust-exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNabil201-ctrl%2FRust-exercises", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNabil201-ctrl%2FRust-exercises'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 013d33d1937234fdc225c646a878caf3875fa362
[INFO] fixing Nabil201-ctrl/Rust-exercises against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNabil201-ctrl%2FRust-exercises" "/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/Nabil201-ctrl/Rust-exercises
[INFO] finished tweaking git repo https://github.com/Nabil201-ctrl/Rust-exercises
[INFO] tweaked toml for git repo https://github.com/Nabil201-ctrl/Rust-exercises written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Nabil201-ctrl/Rust-exercises on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Nabil201-ctrl/Rust-exercises 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" "+622891a4e29178280638a6b63a8908bde2c0c854" "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/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] a4178eafb6ec46d351432b59f990632b4405d49347bf5a344d70dd2b5af07d9e
[INFO] running `Command { std: "docker" "start" "a4178eafb6ec46d351432b59f990632b4405d49347bf5a344d70dd2b5af07d9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a4178eafb6ec46d351432b59f990632b4405d49347bf5a344d70dd2b5af07d9e" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4178eafb6ec46d351432b59f990632b4405d49347bf5a344d70dd2b5af07d9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a4178eafb6ec46d351432b59f990632b4405d49347bf5a344d70dd2b5af07d9e" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=start=2015", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_excercises v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found `m2`
[INFO] [stdout]   --> src/bin/excercise_06.rs:20:23
[INFO] [stdout]    |
[INFO] [stdout] 20 |             num1 * nu m2;
[INFO] [stdout]    |                       ^^ expected one of 8 possible tokens
[INFO] [stdout]    |
[INFO] [stdout] help: you might have meant to write a field access
[INFO] [stdout]    |
[INFO] [stdout] 20 |             num1 * nu.m2;
[INFO] [stdout]    |                      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `return` value
[INFO] [stdout]   --> src/bin/excercise_06.rs:23:19
[INFO] [stdout]    |
[INFO] [stdout] 23 |             return(print!("input a proper number"))
[INFO] [stdout]    |                   ^                               ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 23 -             return(print!("input a proper number"))
[INFO] [stdout] 23 +             return print!("input a proper number")
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `excercise_05`
[INFO] [stdout]  --> src/bin/excercise_05.rs:1:65
[INFO] [stdout]   |
[INFO] [stdout] 1 | // Reverse a string without using .rev() directly (manual loop).
[INFO] [stdout]   |                                                                 ^ consider adding a `main` function to `src/bin/excercise_05.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_excercises` (bin "excercise_05") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found `m2`
[INFO] [stdout]   --> src/bin/excercise_06.rs:20:23
[INFO] [stdout]    |
[INFO] [stdout] 20 |             num1 * nu m2;
[INFO] [stdout]    |                       ^^ expected one of 8 possible tokens
[INFO] [stdout]    |
[INFO] [stdout] help: you might have meant to write a field access
[INFO] [stdout]    |
[INFO] [stdout] 20 |             num1 * nu.m2;
[INFO] [stdout]    |                      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num1`
[INFO] [stdout]  --> src/bin/excercise_06.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let num1 = 10;
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_num1`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num2`
[INFO] [stdout]  --> src/bin/excercise_06.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let num2 = 20;
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_num2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operator`
[INFO] [stdout]  --> src/bin/excercise_06.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let operator = '+';
[INFO] [stdout]   |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `a` is never read
[INFO] [stdout]   --> src/bin/excercises_02.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut a = a;
[INFO] [stdout]    |                 ^ this value is reassigned later and never used
[INFO] [stdout] 11 |     let mut b = b;
[INFO] [stdout] 12 |     a = b;
[INFO] [stdout]    |     ----- `a` is overwritten here before the previous value is read
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `a` is never read
[INFO] [stdout]   --> src/bin/excercises_02.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     a = a - b;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0369]: no implementation for `char | char`
[INFO] [stdout]   --> src/bin/excercises_07.rs:12:24
[INFO] [stdout]    |
[INFO] [stdout] 12 |         if char == 'a' | 'e' | 'i' | 'o' | 'u' {
[INFO] [stdout]    |                    --- ^ --- char
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    char
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `return` value
[INFO] [stdout]   --> src/bin/excercise_06.rs:23:19
[INFO] [stdout]    |
[INFO] [stdout] 23 |             return(print!("input a proper number"))
[INFO] [stdout]    |                   ^                               ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 23 -             return(print!("input a proper number"))
[INFO] [stdout] 23 +             return print!("input a proper number")
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num1`
[INFO] [stdout]  --> src/bin/excercise_06.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let num1 = 10;
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_num1`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num2`
[INFO] [stdout]  --> src/bin/excercise_06.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let num2 = 20;
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_num2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operator`
[INFO] [stdout]  --> src/bin/excercise_06.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let operator = '+';
[INFO] [stdout]   |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_excercises` (bin "excercise_06") due to 1 previous error; 4 warnings emitted
[INFO] [stdout] error: expected `::`, found `:`
[INFO] [stdout]  --> src/bin/excersise_09.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand:Rng;
[INFO] [stdout]   |         ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: import paths are delimited using `::`
[INFO] [stdout] help: use double colon
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::Rng;
[INFO] [stdout]   |          +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found reserved keyword `gen`
[INFO] [stdout]   --> src/bin/excersise_09.rs:14:27
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let randomBool = flip.gen::<bool>();
[INFO] [stdout]    |                           ^^^ expected identifier, found reserved keyword
[INFO] [stdout]    |
[INFO] [stdout] help: escape `gen` to use it as an identifier
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let randomBool = flip.r#gen::<bool>();
[INFO] [stdout]    |                           ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0369]: no implementation for `char | char`
[INFO] [stdout]   --> src/bin/excercises_07.rs:12:24
[INFO] [stdout]    |
[INFO] [stdout] 12 |         if char == 'a' | 'e' | 'i' | 'o' | 'u' {
[INFO] [stdout]    |                    --- ^ --- char
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    char
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `rand`
[INFO] [stdout]  --> src/bin/excersise_09.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand:Rng;
[INFO] [stdout]   |     ^^^^ use of unresolved module or unlinked crate `rand`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `rand`, use `cargo add rand` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_excercises` (bin "excercise_06" test) due to 1 previous error; 4 warnings emitted
[INFO] [stdout] error: expected `::`, found `:`
[INFO] [stdout]  --> src/bin/excersise_09.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand:Rng;
[INFO] [stdout]   |         ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: import paths are delimited using `::`
[INFO] [stdout] help: use double colon
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::Rng;
[INFO] [stdout]   |          +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_excercises` (bin "excercises_07") due to 1 previous error
[INFO] [stdout] error: expected identifier, found reserved keyword `gen`
[INFO] [stdout]   --> src/bin/excersise_09.rs:14:27
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let randomBool = flip.gen::<bool>();
[INFO] [stdout]    |                           ^^^ expected identifier, found reserved keyword
[INFO] [stdout]    |
[INFO] [stdout] help: escape `gen` to use it as an identifier
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let randomBool = flip.r#gen::<bool>();
[INFO] [stdout]    |                           ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_excercises` (bin "excercises_07" test) due to 1 previous error
[INFO] [stdout] error[E0432]: unresolved import `rand`
[INFO] [stdout]  --> src/bin/excersise_09.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand:Rng;
[INFO] [stdout]   |     ^^^^ use of unresolved module or unlinked crate `rand`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `rand`, use `cargo add rand` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0369`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0369`.
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `rand` in this scope
[INFO] [stdout]   --> src/bin/excersise_09.rs:13:20
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut flip = rand::thread_rng();
[INFO] [stdout]    |                    ^^^^ use of unresolved module or unlinked crate `rand`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `rand`, use `cargo add rand` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `rand` in this scope
[INFO] [stdout]   --> src/bin/excersise_09.rs:13:20
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut flip = rand::thread_rng();
[INFO] [stdout]    |                    ^^^^ use of unresolved module or unlinked crate `rand`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `rand`, use `cargo add rand` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_excercises` (bin "excersise_09") due to 4 previous errors
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_excercises` (bin "excersise_09" test) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "a4178eafb6ec46d351432b59f990632b4405d49347bf5a344d70dd2b5af07d9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4178eafb6ec46d351432b59f990632b4405d49347bf5a344d70dd2b5af07d9e", kill_on_drop: false }`
[INFO] [stdout] a4178eafb6ec46d351432b59f990632b4405d49347bf5a344d70dd2b5af07d9e
