[INFO] cloning repository https://github.com/ryanthegentry/Rustlings
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ryanthegentry/Rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryanthegentry%2FRustlings", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryanthegentry%2FRustlings'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3d77f264101a35c4fea194e0253e4ecad2ccb3c0
[INFO] checking ryanthegentry/Rustlings against try#44f3504e96c944ae54fc72b5f5008f53f7eda001 for pr-136776
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryanthegentry%2FRustlings" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ryanthegentry/Rustlings on toolchain 44f3504e96c944ae54fc72b5f5008f53f7eda001
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ryanthegentry/Rustlings
[INFO] finished tweaking git repo https://github.com/ryanthegentry/Rustlings
[INFO] tweaked toml for git repo https://github.com/ryanthegentry/Rustlings written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ryanthegentry/Rustlings 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" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking ryanthegentry/Rustlings against try#44f3504e96c944ae54fc72b5f5008f53f7eda001 for pr-136776
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryanthegentry%2FRustlings" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ryanthegentry/Rustlings on toolchain 44f3504e96c944ae54fc72b5f5008f53f7eda001
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ryanthegentry/Rustlings
[INFO] finished tweaking git repo https://github.com/ryanthegentry/Rustlings
[INFO] tweaked toml for git repo https://github.com/ryanthegentry/Rustlings written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ryanthegentry/Rustlings 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" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 85438b08a50f48a2be08e51559a1b84985f7a81bb7a2bf707f4140970c929743
[INFO] running `Command { std: "docker" "start" "-a" "85438b08a50f48a2be08e51559a1b84985f7a81bb7a2bf707f4140970c929743", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "85438b08a50f48a2be08e51559a1b84985f7a81bb7a2bf707f4140970c929743", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85438b08a50f48a2be08e51559a1b84985f7a81bb7a2bf707f4140970c929743", kill_on_drop: false }`
[INFO] [stdout] 85438b08a50f48a2be08e51559a1b84985f7a81bb7a2bf707f4140970c929743
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 84acaef4aab3a07f18bb0902ab49845f4dd4ca6b48a608ef774216dbaab249c2
[INFO] running `Command { std: "docker" "start" "-a" "84acaef4aab3a07f18bb0902ab49845f4dd4ca6b48a608ef774216dbaab249c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling escargot v0.5.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking tests_intro v0.1.0 (/opt/rustwide/workdir/Writing Automated Tests/Tests/Intro)
[INFO] [stderr]     Checking errorsn v0.1.0 (/opt/rustwide/workdir/Recoverable and Unrecoverable Errors/Error Handling/Multiple Errors)
[INFO] [stderr]     Checking matching_result v0.1.0 (/opt/rustwide/workdir/Recoverable and Unrecoverable Errors/Error Handling/Matching Result)
[INFO] [stderr]     Checking testing_task v0.1.0 (/opt/rustwide/workdir/Writing Automated Tests/Tests/Testing Task)
[INFO] [stderr]     Checking iterator3 v0.1.0 (/opt/rustwide/workdir/Iterators and Closures/Standard Library Types/Iterator)
[INFO] [stderr]     Checking if_task v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/If/If Task)
[INFO] [stderr]     Checking returning_result v0.1.0 (/opt/rustwide/workdir/Recoverable and Unrecoverable Errors/Error Handling/Returning Result)
[INFO] [stdout] error[E0369]: cannot multiply `Result<i32, ParseIntError>` by `{integer}`
[INFO] [stdout]  --> Recoverable and Unrecoverable Errors/Error Handling/Matching Result/src/lib.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Ok(qty * cost_per_item + processing_fee)
[INFO] [stdout]   |        --- ^ ------------- {integer}
[INFO] [stdout]   |        |
[INFO] [stdout]   |        Result<i32, ParseIntError>
[INFO] [stdout]   |
[INFO] [stdout] note: the foreign item type `Result<i32, ParseIntError>` doesn't implement `Mul<{integer}>`
[INFO] [stdout]  --> /rustc/44f3504e96c944ae54fc72b5f5008f53f7eda001/library/core/src/result.rs:528:1
[INFO] [stdout]   |
[INFO] [stdout]   = note: not implement `Mul<{integer}>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0369`.
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found `>`
[INFO] [stdout]  --> Recoverable and Unrecoverable Errors/Error Handling/Multiple Errors/src/lib.rs:6:84
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn read_and_validate(b: &mut io::BufRead) -> Result<PositiveNonzeroInteger, ???> {
[INFO] [stdout]   |                                                                                    ^ expected identifier
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `matching_result` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]  --> Writing Automated Tests/Tests/Intro/src/lib.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Rectangle {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `can_hold` is never used
[INFO] [stdout]  --> Writing Automated Tests/Tests/Intro/src/lib.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl Rectangle {
[INFO] [stdout]   | -------------- method in this implementation
[INFO] [stdout] 8 |     fn can_hold(&self, other: &Rectangle) -> bool {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> Recoverable and Unrecoverable Errors/Error Handling/Returning Result/src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `errorsn` (lib) due to 1 previous error
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> Common Programming Concepts/If/If Task/src/lib.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn bigger(a: i32, b: i32) -> i32 {
[INFO] [stdout]   |        ------                    ^^^ expected `i32`, found `()`
[INFO] [stdout]   |        |
[INFO] [stdout]   |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]   |
[INFO] [stdout] note: consider returning one of these bindings
[INFO] [stdout]  --> Common Programming Concepts/If/If Task/src/lib.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn bigger(a: i32, b: i32) -> i32 {
[INFO] [stdout]   |               ^       ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> Iterators and Closures/Standard Library Types/Iterator/src/lib.rs:15:34
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn divide(a: i32, b: i32) -> Result<i32, DivisionError> {
[INFO] [stdout]    |        ------                    ^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Result<i32, DivisionError>`, found `()`
[INFO] [stdout]    |        |
[INFO] [stdout]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `Result<i32, DivisionError>`
[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] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `if_task` (lib) due to 1 previous error
[INFO] [stderr] error: could not compile `iterator3` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "84acaef4aab3a07f18bb0902ab49845f4dd4ca6b48a608ef774216dbaab249c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84acaef4aab3a07f18bb0902ab49845f4dd4ca6b48a608ef774216dbaab249c2", kill_on_drop: false }`
[INFO] [stdout] 84acaef4aab3a07f18bb0902ab49845f4dd4ca6b48a608ef774216dbaab249c2
