[INFO] cloning repository https://github.com/pedro-stanaka/rustlings
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pedro-stanaka/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpedro-stanaka%2Frustlings", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpedro-stanaka%2Frustlings'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3b3c6b469718014402765175cbf33b6400bc12e8
[INFO] checking pedro-stanaka/rustlings against try#5d96fa0e954d77528204a1ba3b8847ec083c779b for pr-153457
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpedro-stanaka%2Frustlings" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/pedro-stanaka/rustlings
[INFO] finished tweaking git repo https://github.com/pedro-stanaka/rustlings
[INFO] tweaked toml for git repo https://github.com/pedro-stanaka/rustlings written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/pedro-stanaka/rustlings on toolchain 5d96fa0e954d77528204a1ba3b8847ec083c779b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5d96fa0e954d77528204a1ba3b8847ec083c779b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5d96fa0e954d77528204a1ba3b8847ec083c779b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5d96fa0e954d77528204a1ba3b8847ec083c779b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+5d96fa0e954d77528204a1ba3b8847ec083c779b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81040718739b77680201647e09ea7bd13e3b4685d860c2edd236ae8711010061
[INFO] running `Command { std: "docker" "start" "-a" "81040718739b77680201647e09ea7bd13e3b4685d860c2edd236ae8711010061", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81040718739b77680201647e09ea7bd13e3b4685d860c2edd236ae8711010061", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81040718739b77680201647e09ea7bd13e3b4685d860c2edd236ae8711010061", kill_on_drop: false }`
[INFO] [stdout] 81040718739b77680201647e09ea7bd13e3b4685d860c2edd236ae8711010061
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+5d96fa0e954d77528204a1ba3b8847ec083c779b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4bb7db4e7a74cfc32d14f9838feecf43337379c0acce1e70374a5b0a014eb8fe
[INFO] running `Command { std: "docker" "start" "-a" "4bb7db4e7a74cfc32d14f9838feecf43337379c0acce1e70374a5b0a014eb8fe", kill_on_drop: false }`
[INFO] [stderr]     Checking exercises v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected identifier, found `)`
[INFO] [stdout]   --> exercises/15_traits/traits5.rs:22:23
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn some_func(item: ???) -> bool {
[INFO] [stdout]    |                       ^ expected identifier
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `my_macro`
[INFO] [stdout]  --> exercises/21_macros/macros1.rs:1:14
[INFO] [stdout]   |
[INFO] [stdout] 1 | macro_rules! my_macro {
[INFO] [stdout]   |              ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_macros)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0423]: expected function, found macro `my_macro`
[INFO] [stdout]  --> exercises/21_macros/macros1.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     my_macro();
[INFO] [stdout]   |     ^^^^^^^^ not a function
[INFO] [stdout]   |
[INFO] [stdout] help: use `!` to invoke the macro
[INFO] [stdout]   |
[INFO] [stdout] 9 |     my_macro!();
[INFO] [stdout]   |             +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `item` in this scope
[INFO] [stdout]   --> exercises/15_traits/traits5.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     item.some_function() && item.other_function()
[INFO] [stdout]    |     ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `item` in this scope
[INFO] [stdout]   --> exercises/15_traits/traits5.rs:23:29
[INFO] [stdout]    |
[INFO] [stdout] 23 |     item.some_function() && item.other_function()
[INFO] [stdout]    |                             ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0423`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "traits5" test) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `exercises` (bin "macros1") due to 1 previous error; 1 warning emitted
[INFO] [stderr] error: could not compile `exercises` (bin "try_from_into") due to 3 previous errors
[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] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found `,`
[INFO] [stdout]   --> exercises/15_traits/traits4.rs:14:40
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn compare_license_types(software1: ???, software2: ???) -> bool {
[INFO] [stdout]    |                                        ^ expected identifier
[INFO] [stdout]    |
[INFO] [stdout] help: remove this comma
[INFO] [stdout]    |
[INFO] [stdout] 14 - fn compare_license_types(software1: ???, software2: ???) -> bool {
[INFO] [stdout] 14 + fn compare_license_types(software1: ??? software2: ???) -> bool {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected a trait, found type
[INFO] [stdout]   --> exercises/15_traits/traits4.rs:14:39
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn compare_license_types(software1: ???, software2: ???) -> bool {
[INFO] [stdout]    |                                       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found `)`
[INFO] [stdout]   --> exercises/15_traits/traits4.rs:14:56
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn compare_license_types(software1: ???, software2: ???) -> bool {
[INFO] [stdout]    |                                                        ^ expected identifier
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `my_macro` in this scope
[INFO] [stdout]  --> exercises/21_macros/macros2.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     my_macro!();
[INFO] [stdout]   |     ^^^^^^^^ consider moving the definition of `my_macro` before this call
[INFO] [stdout]   |
[INFO] [stdout] note: a macro with the same name exists, but it appears later
[INFO] [stdout]  --> exercises/21_macros/macros2.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | macro_rules! my_macro {
[INFO] [stdout]   |              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `my_macro`
[INFO] [stdout]  --> exercises/21_macros/macros2.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | macro_rules! my_macro {
[INFO] [stdout]   |              ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_macros)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fill_vec` is never used
[INFO] [stdout]  --> exercises/06_move_semantics/move_semantics2.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn fill_vec(vec: Vec<i32>) -> Vec<i32> {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "macros2") due to 1 previous error; 1 warning emitted
[INFO] [stdout] error[E0425]: cannot find value `software1` in this scope
[INFO] [stdout]   --> exercises/15_traits/traits4.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     software1.licensing_info() == software2.licensing_info()
[INFO] [stdout]    |     ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `software2` in this scope
[INFO] [stdout]   --> exercises/15_traits/traits4.rs:15:35
[INFO] [stdout]    |
[INFO] [stdout] 15 |     software1.licensing_info() == software2.licensing_info()
[INFO] [stdout]    |                                   ^^^^^^^^^ not found in this scope
[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 "traits4" test) due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "4bb7db4e7a74cfc32d14f9838feecf43337379c0acce1e70374a5b0a014eb8fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bb7db4e7a74cfc32d14f9838feecf43337379c0acce1e70374a5b0a014eb8fe", kill_on_drop: false }`
[INFO] [stdout] 4bb7db4e7a74cfc32d14f9838feecf43337379c0acce1e70374a5b0a014eb8fe