[INFO] cloning repository https://github.com/Anu-Ra-g/Rustlings_course
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Anu-Ra-g/Rustlings_course" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnu-Ra-g%2FRustlings_course", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnu-Ra-g%2FRustlings_course'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2cf814396d063ae41607a87034f5a14a9dd3ce35
[INFO] checking Anu-Ra-g/Rustlings_course against master#021fc25b7a48f6051bee1e1f06c7a277e4de1cc9 for pr-151510
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnu-Ra-g%2FRustlings_course" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Anu-Ra-g/Rustlings_course
[INFO] finished tweaking git repo https://github.com/Anu-Ra-g/Rustlings_course
[INFO] tweaked toml for git repo https://github.com/Anu-Ra-g/Rustlings_course written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Anu-Ra-g/Rustlings_course on toolchain 021fc25b7a48f6051bee1e1f06c7a277e4de1cc9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+021fc25b7a48f6051bee1e1f06c7a277e4de1cc9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Anu-Ra-g/Rustlings_course 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" "+021fc25b7a48f6051bee1e1f06c7a277e4de1cc9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+021fc25b7a48f6051bee1e1f06c7a277e4de1cc9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ea2577bab7241a1c5f3bec2a5b37573e671a01ec99845530fd9dc354df5b9c3f
[INFO] running `Command { std: "docker" "start" "-a" "ea2577bab7241a1c5f3bec2a5b37573e671a01ec99845530fd9dc354df5b9c3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea2577bab7241a1c5f3bec2a5b37573e671a01ec99845530fd9dc354df5b9c3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea2577bab7241a1c5f3bec2a5b37573e671a01ec99845530fd9dc354df5b9c3f", kill_on_drop: false }`
[INFO] [stdout] ea2577bab7241a1c5f3bec2a5b37573e671a01ec99845530fd9dc354df5b9c3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+021fc25b7a48f6051bee1e1f06c7a277e4de1cc9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88585a2fd7c8f822e52195075a2d231c85059e934ddcf39c7375abc6273de002
[INFO] running `Command { std: "docker" "start" "-a" "88585a2fd7c8f822e52195075a2d231c85059e934ddcf39c7375abc6273de002", kill_on_drop: false }`
[INFO] [stderr]     Checking exercises v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find value `child_numbers` in this scope
[INFO] [stdout]   --> exercises/19_smart_pointers/arc1.rs:35:28
[INFO] [stdout]    |
[INFO] [stdout] 35 |             let sum: u32 = child_numbers.iter().filter(|&&n| n % 8 == offset).sum();
[INFO] [stdout]    |                            ^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unused import: `sync::Arc`
[INFO] [stdout]   --> exercises/19_smart_pointers/arc1.rs:20:11
[INFO] [stdout]    |
[INFO] [stdout] 20 | use std::{sync::Arc, thread};
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> exercises/19_smart_pointers/arc1.rs:19:11
[INFO] [stdout]    |
[INFO] [stdout] 19 | #![forbid(unused_imports)]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "arc1" test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0061]: this function takes 0 arguments but 1 argument was supplied
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     placeholder("blue");
[INFO] [stdout]    |     ^^^^^^^^^^^ ------ unexpected argument of type `&'static str`
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:2:4
[INFO] [stdout]    |
[INFO] [stdout]  2 | fn placeholder() {}
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] help: remove the extra argument
[INFO] [stdout]    |
[INFO] [stdout] 16 -     placeholder("blue");
[INFO] [stdout] 16 +     placeholder();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 0 arguments but 1 argument was supplied
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     placeholder("red".to_string());
[INFO] [stdout]    |     ^^^^^^^^^^^ ----------------- unexpected argument of type `String`
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:2:4
[INFO] [stdout]    |
[INFO] [stdout]  2 | fn placeholder() {}
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] help: remove the extra argument
[INFO] [stdout]    |
[INFO] [stdout] 18 -     placeholder("red".to_string());
[INFO] [stdout] 18 +     placeholder();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> exercises/12_options/options1.rs:5:40
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn maybe_icecream(hour_of_day: u16) -> Option<u16> {
[INFO] [stdout]   |    --------------                      ^^^^^^^^^^^ expected `Option<u16>`, found `()`
[INFO] [stdout]   |    |
[INFO] [stdout]   |    implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]   |
[INFO] [stdout]   = note:   expected enum `Option<u16>`
[INFO] [stdout]           found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 0 arguments but 1 argument was supplied
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     placeholder(String::from("hi"));
[INFO] [stdout]    |     ^^^^^^^^^^^ ------------------ unexpected argument of type `String`
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:2:4
[INFO] [stdout]    |
[INFO] [stdout]  2 | fn placeholder() {}
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] help: remove the extra argument
[INFO] [stdout]    |
[INFO] [stdout] 20 -     placeholder(String::from("hi"));
[INFO] [stdout] 20 +     placeholder();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 0 arguments but 1 argument was supplied
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     placeholder("rust is fun!".to_owned());
[INFO] [stdout]    |     ^^^^^^^^^^^ ------------------------- unexpected argument of type `String`
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:2:4
[INFO] [stdout]    |
[INFO] [stdout]  2 | fn placeholder() {}
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] help: remove the extra argument
[INFO] [stdout]    |
[INFO] [stdout] 22 -     placeholder("rust is fun!".to_owned());
[INFO] [stdout] 22 +     placeholder();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 0 arguments but 1 argument was supplied
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     placeholder("nice weather".into());
[INFO] [stdout]    |     ^^^^^^^^^^^ --------------------- unexpected argument
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:2:4
[INFO] [stdout]    |
[INFO] [stdout]  2 | fn placeholder() {}
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] help: remove the extra argument
[INFO] [stdout]    |
[INFO] [stdout] 24 -     placeholder("nice weather".into());
[INFO] [stdout] 24 +     placeholder();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 0 arguments but 1 argument was supplied
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     placeholder(format!("Interpolation {}", "Station"));
[INFO] [stdout]    |     ^^^^^^^^^^^ -------------------------------------- unexpected argument of type `String`
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:2:4
[INFO] [stdout]    |
[INFO] [stdout]  2 | fn placeholder() {}
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] help: remove the extra argument
[INFO] [stdout]    |
[INFO] [stdout] 26 -     placeholder(format!("Interpolation {}", "Station"));
[INFO] [stdout] 26 +     placeholder();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 0 arguments but 1 argument was supplied
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     placeholder(&String::from("abc")[0..1]);
[INFO] [stdout]    |     ^^^^^^^^^^^ -------------------------- unexpected argument of type `&str`
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:2:4
[INFO] [stdout]    |
[INFO] [stdout]  2 | fn placeholder() {}
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] help: remove the extra argument
[INFO] [stdout]    |
[INFO] [stdout] 30 -     placeholder(&String::from("abc")[0..1]);
[INFO] [stdout] 30 +     placeholder();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 0 arguments but 1 argument was supplied
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     placeholder("  hello there ".trim());
[INFO] [stdout]    |     ^^^^^^^^^^^ ----------------------- unexpected argument of type `&str`
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:2:4
[INFO] [stdout]    |
[INFO] [stdout]  2 | fn placeholder() {}
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] help: remove the extra argument
[INFO] [stdout]    |
[INFO] [stdout] 32 -     placeholder("  hello there ".trim());
[INFO] [stdout] 32 +     placeholder();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 0 arguments but 1 argument was supplied
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     placeholder("Happy Monday!".replace("Mon", "Tues"));
[INFO] [stdout]    |     ^^^^^^^^^^^ -------------------------------------- unexpected argument of type `String`
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:2:4
[INFO] [stdout]    |
[INFO] [stdout]  2 | fn placeholder() {}
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] help: remove the extra argument
[INFO] [stdout]    |
[INFO] [stdout] 34 -     placeholder("Happy Monday!".replace("Mon", "Tues"));
[INFO] [stdout] 34 +     placeholder();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 0 arguments but 1 argument was supplied
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     placeholder("mY sHiFt KeY iS sTiCkY".to_lowercase());
[INFO] [stdout]    |     ^^^^^^^^^^^ --------------------------------------- unexpected argument of type `String`
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:2:4
[INFO] [stdout]    |
[INFO] [stdout]  2 | fn placeholder() {}
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] help: remove the extra argument
[INFO] [stdout]    |
[INFO] [stdout] 36 -     placeholder("mY sHiFt KeY iS sTiCkY".to_lowercase());
[INFO] [stdout] 36 +     placeholder();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0061`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "strings4" test) due to 10 previous errors
[INFO] [stderr] error: could not compile `exercises` (bin "options1") due to 1 previous error
[INFO] [stderr] error: could not compile `exercises` (bin "quiz3" test) due to 1 previous error
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> exercises/quizzes/quiz3.rs:55:20
[INFO] [stdout]    |
[INFO] [stdout] 55 |             grade: "A+",
[INFO] [stdout]    |                    ^^^^ expected `f32`, found `&str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "88585a2fd7c8f822e52195075a2d231c85059e934ddcf39c7375abc6273de002", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88585a2fd7c8f822e52195075a2d231c85059e934ddcf39c7375abc6273de002", kill_on_drop: false }`
[INFO] [stdout] 88585a2fd7c8f822e52195075a2d231c85059e934ddcf39c7375abc6273de002
