[INFO] cloning repository https://github.com/DKolaya/rustling
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DKolaya/rustling" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDKolaya%2Frustling", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDKolaya%2Frustling'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 764960ec2f357856dacfaa37077ad8920d982bfc
[INFO] checking DKolaya/rustling against try#f70ee28831acc074c109afab32d287057c3eca46 for pr-149389
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDKolaya%2Frustling" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
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[INFO] started tweaking git repo https://github.com/DKolaya/rustling
[INFO] finished tweaking git repo https://github.com/DKolaya/rustling
[INFO] tweaked toml for git repo https://github.com/DKolaya/rustling written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/DKolaya/rustling on toolchain f70ee28831acc074c109afab32d287057c3eca46
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f70ee28831acc074c109afab32d287057c3eca46" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/DKolaya/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" "+f70ee28831acc074c109afab32d287057c3eca46" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+f70ee28831acc074c109afab32d287057c3eca46" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ede0db53a55fe750d0286956a573b6964919c949cffdcf7f9b6f83752d166370
[INFO] running `Command { std: "docker" "start" "-a" "ede0db53a55fe750d0286956a573b6964919c949cffdcf7f9b6f83752d166370", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ede0db53a55fe750d0286956a573b6964919c949cffdcf7f9b6f83752d166370", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ede0db53a55fe750d0286956a573b6964919c949cffdcf7f9b6f83752d166370", kill_on_drop: false }`
[INFO] [stdout] ede0db53a55fe750d0286956a573b6964919c949cffdcf7f9b6f83752d166370
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+f70ee28831acc074c109afab32d287057c3eca46" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dcbcecbb757808536a6c66973530b9678d5957871dbf6f574fdb5bf1240921bc
[INFO] running `Command { std: "docker" "start" "-a" "dcbcecbb757808536a6c66973530b9678d5957871dbf6f574fdb5bf1240921bc", kill_on_drop: false }`
[INFO] [stderr]     Checking exercises v0.0.0 (/opt/rustwide/workdir)
[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[E0046]: not all trait items implemented, missing: `append_bar`
[INFO] [stdout]  --> exercises/15_traits/traits1.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fn append_bar(self) -> Self;
[INFO] [stdout]   |     ---------------------------- `append_bar` from trait
[INFO] [stdout] ...
[INFO] [stdout] 7 | impl AppendBar for String {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^ missing `append_bar` in implementation
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0046`.
[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] [stderr] error: could not compile `exercises` (bin "traits1" test) due to 1 previous error
[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] [stderr] warning: build failed, waiting for other jobs to finish...
[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: cannot find macro `my_macro` in this scope
[INFO] [stdout]   --> exercises/21_macros/macros3.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     my_macro!();
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: have you added the `#[macro_use]` on the module/import?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `message`
[INFO] [stdout]   --> exercises/08_enums/enums3.rs:46:27
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn process(&mut self, message: Message) {
[INFO] [stdout]    |                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `my_macro`
[INFO] [stdout]  --> exercises/21_macros/macros3.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 |     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] [stderr] error: could not compile `exercises` (bin "macros3") due to 1 previous error; 1 warning emitted
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> exercises/23_conversions/from_str.rs:44:29
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn from_str(s: &str) -> Result<Self, Self::Err> {}
[INFO] [stdout]    |        --------             ^^^^^^^^^^^^^^^^^^^^^^^ expected `Result<Person, ParsePersonError>`, found `()`
[INFO] [stdout]    |        |
[INFO] [stdout]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `Result<Person, ParsePersonError>`
[INFO] [stdout]            found unit type `()`
[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] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "from_str" test) due to 1 previous error
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "try_from_into" test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "dcbcecbb757808536a6c66973530b9678d5957871dbf6f574fdb5bf1240921bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcbcecbb757808536a6c66973530b9678d5957871dbf6f574fdb5bf1240921bc", kill_on_drop: false }`
[INFO] [stdout] dcbcecbb757808536a6c66973530b9678d5957871dbf6f574fdb5bf1240921bc
