[INFO] cloning repository https://github.com/Basharkhan7776/rustling
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Basharkhan7776/rustling" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBasharkhan7776%2Frustling", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBasharkhan7776%2Frustling'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ee0bc7cab4f72a123e1bc0ab9c018e4b396aac2e
[INFO] checking Basharkhan7776/rustling against master#f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b for pr-148329
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBasharkhan7776%2Frustling" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Basharkhan7776/rustling
[INFO] finished tweaking git repo https://github.com/Basharkhan7776/rustling
[INFO] tweaked toml for git repo https://github.com/Basharkhan7776/rustling written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Basharkhan7776/rustling on toolchain f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Basharkhan7776/rustling 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" "+f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b" "fetch" "--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-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a0bbf94374ba881db33eb9aedb644b3e6d91c291cf5fe47f0876a1e99a8244ea
[INFO] running `Command { std: "docker" "start" "-a" "a0bbf94374ba881db33eb9aedb644b3e6d91c291cf5fe47f0876a1e99a8244ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a0bbf94374ba881db33eb9aedb644b3e6d91c291cf5fe47f0876a1e99a8244ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0bbf94374ba881db33eb9aedb644b3e6d91c291cf5fe47f0876a1e99a8244ea", kill_on_drop: false }`
[INFO] [stdout] a0bbf94374ba881db33eb9aedb644b3e6d91c291cf5fe47f0876a1e99a8244ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd27b3ccf66bca5744c0ee693e0f20f5cec1a4cb15fee5e4c10116b17740331e
[INFO] running `Command { std: "docker" "start" "-a" "bd27b3ccf66bca5744c0ee693e0f20f5cec1a4cb15fee5e4c10116b17740331e", kill_on_drop: false }`
[INFO] [stderr]     Checking exercises v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected `;`, found `(`
[INFO] [stdout]  --> exercises/21_macros/macros4.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     }
[INFO] [stdout]   |      - expected `;`
[INFO] [stdout] 7 |     ($val:expr) => {
[INFO] [stdout]   |     ^ unexpected token
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `SystemTime`
[INFO] [stdout]  --> exercises/10_modules/modules3.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 |     match SystemTime::now().duration_since(UNIX_EPOCH) {
[INFO] [stdout]   |           ^^^^^^^^^^ use of undeclared type `SystemTime`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 8 + use std::time::SystemTime;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `UNIX_EPOCH` in this scope
[INFO] [stdout]  --> exercises/10_modules/modules3.rs:9:44
[INFO] [stdout]   |
[INFO] [stdout] 9 |     match SystemTime::now().duration_since(UNIX_EPOCH) {
[INFO] [stdout]   |                                            ^^^^^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this constant
[INFO] [stdout]   |
[INFO] [stdout] 8 + use std::time::UNIX_EPOCH;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: cannot divide `f64` by `usize`
[INFO] [stdout]  --> exercises/23_conversions/using_as.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 |     total / values.len()
[INFO] [stdout]   |           ^ no implementation for `f64 / usize`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `Div<usize>` is not implemented for `f64`
[INFO] [stdout] help: the following other types implement trait `Div<Rhs>`
[INFO] [stdout]  --> /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/core/src/ops/arith.rs:526:1
[INFO] [stdout]   |
[INFO] [stdout]   = note: `&f64` implements `Div<f64>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `&f64` implements `Div`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `f64` implements `Div<&f64>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `f64` implements `Div`
[INFO] [stdout]   = note: this error originates in the macro `div_impl_float` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "using_as" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `exercises` (bin "macros4" test) due to 1 previous error
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> exercises/10_modules/modules3.rs:10:74
[INFO] [stdout]    |
[INFO] [stdout] 10 |         Ok(n) => println!("1970-01-01 00:00:00 UTC was {} seconds ago!", n.as_secs()),
[INFO] [stdout]    |                                                                          ^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0425, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "modules3") due to 3 previous errors
[INFO] [stdout] error[E0599]: no method named `append_bar` found for struct `Vec<String>` in the current scope
[INFO] [stdout]   --> exercises/15_traits/traits2.rs:18:49
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let mut foo = vec![String::from("Foo")].append_bar();
[INFO] [stdout]    |                                                 ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout] note: `AppendBar` defines an item `append_bar`, perhaps you need to implement it
[INFO] [stdout]   --> exercises/15_traits/traits2.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout]  1 | trait AppendBar {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^
[INFO] [stdout] help: there is a method `append` with a similar name, but with different arguments
[INFO] [stdout]   --> /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/alloc/src/vec/mod.rs:2786:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `unwrap` found for unit type `()` in the current scope
[INFO] [stdout]   --> exercises/18_iterators/iterators3.rs:68:39
[INFO] [stdout]    |
[INFO] [stdout] 68 |         assert_eq!(result_with_list().unwrap(), [1, 11, 1426, 3]);
[INFO] [stdout]    |                                       ^^^^^^ method not found in `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "traits2" test) due to 1 previous error
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> exercises/18_iterators/iterators3.rs:73:39
[INFO] [stdout]    |
[INFO] [stdout] 73 |         assert_eq!(list_of_results(), [Ok(1), Ok(11), Ok(1426), Ok(3)]);
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `()`, found `[Result<{integer}, _>; 4]`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected unit type `()`
[INFO] [stdout]                   found array `[Result<{integer}, _>; 4]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> exercises/18_iterators/iterators3.rs:13:11
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn divide(a: i64, b: i64) -> Result<i64, DivisionError> {
[INFO] [stdout]    |           ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> exercises/18_iterators/iterators3.rs:13:19
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn divide(a: i64, b: i64) -> Result<i64, DivisionError> {
[INFO] [stdout]    |                   ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `division_results`
[INFO] [stdout]   --> exercises/18_iterators/iterators3.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let division_results = numbers.into_iter().map(|n| divide(n, 27));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_division_results`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `division_results`
[INFO] [stdout]   --> exercises/18_iterators/iterators3.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let division_results = numbers.into_iter().map(|n| divide(n, 27));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_division_results`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> exercises/23_conversions/try_from_into.rs:31:44
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn try_from(tuple: (i16, i16, i16)) -> Result<Self, Self::Error> {}
[INFO] [stdout]    |        --------                            ^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Result<Color, IntoColorError>`, found `()`
[INFO] [stdout]    |        |
[INFO] [stdout]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `Result<Color, IntoColorError>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> exercises/23_conversions/try_from_into.rs:38:35
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn try_from(arr: [i16; 3]) -> Result<Self, Self::Error> {}
[INFO] [stdout]    |        --------                   ^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Result<Color, IntoColorError>`, found `()`
[INFO] [stdout]    |        |
[INFO] [stdout]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `Result<Color, IntoColorError>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> exercises/23_conversions/try_from_into.rs:46:35
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn try_from(slice: &[i16]) -> Result<Self, Self::Error> {}
[INFO] [stdout]    |        --------                   ^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Result<Color, IntoColorError>`, found `()`
[INFO] [stdout]    |        |
[INFO] [stdout]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `Result<Color, IntoColorError>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_ref` found for type parameter `T` in the current scope
[INFO] [stdout]  --> exercises/23_conversions/as_ref_mut.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn byte_counter<T>(arg: T) -> usize {
[INFO] [stdout]   |                 - method `as_ref` not found for this type parameter
[INFO] [stdout] 9 |     arg.as_ref().len()
[INFO] [stdout]   |         ^^^^^^ method not found in `T`
[INFO] [stdout]   |
[INFO] [stdout]   = help: items from traits can only be used if the type parameter is bounded by the trait
[INFO] [stdout] help: the following trait defines an item `as_ref`, perhaps you need to restrict type parameter `T` with it:
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn byte_counter<T: AsRef</* T */>>(arg: T) -> usize {
[INFO] [stdout]   |                  ++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_ref` found for type parameter `T` in the current scope
[INFO] [stdout]   --> exercises/23_conversions/as_ref_mut.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn char_counter<T>(arg: T) -> usize {
[INFO] [stdout]    |                 - method `as_ref` not found for this type parameter
[INFO] [stdout] 15 |     arg.as_ref().chars().count()
[INFO] [stdout]    |         ^^^^^^ method not found in `T`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the type parameter is bounded by the trait
[INFO] [stdout] help: the following trait defines an item `as_ref`, perhaps you need to restrict type parameter `T` with it:
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn char_counter<T: AsRef</* T */>>(arg: T) -> usize {
[INFO] [stdout]    |                  ++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arg`
[INFO] [stdout]   --> exercises/23_conversions/as_ref_mut.rs:20:14
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn num_sq<T>(arg: &mut T) {
[INFO] [stdout]    |              ^^^ help: if this is intentional, prefix it with an underscore: `_arg`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "try_from_into" test) due to 3 previous errors
[INFO] [stderr] error: could not compile `exercises` (bin "iterators3" test) due to 2 previous errors; 4 warnings emitted
[INFO] [stderr] error: could not compile `exercises` (bin "as_ref_mut" test) due to 2 previous errors; 1 warning emitted
[INFO] [stdout] error[E0046]: not all trait items implemented, missing: `licensing_info`
[INFO] [stdout]   --> exercises/15_traits/traits3.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout]  6 |     fn licensing_info(&self) -> String;
[INFO] [stdout]    |     ----------------------------------- `licensing_info` from trait
[INFO] [stdout] ...
[INFO] [stdout] 17 | impl Licensed for SomeSoftware {} // Don't edit this line.
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `licensing_info` in implementation
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0046]: not all trait items implemented, missing: `licensing_info`
[INFO] [stdout]   --> exercises/15_traits/traits3.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout]  6 |     fn licensing_info(&self) -> String;
[INFO] [stdout]    |     ----------------------------------- `licensing_info` from trait
[INFO] [stdout] ...
[INFO] [stdout] 18 | impl Licensed for OtherSoftware {} // Don't edit this line.
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `licensing_info` in implementation
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0046`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "traits3" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "bd27b3ccf66bca5744c0ee693e0f20f5cec1a4cb15fee5e4c10116b17740331e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd27b3ccf66bca5744c0ee693e0f20f5cec1a4cb15fee5e4c10116b17740331e", kill_on_drop: false }`
[INFO] [stdout] bd27b3ccf66bca5744c0ee693e0f20f5cec1a4cb15fee5e4c10116b17740331e
