[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 master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryanthegentry%2FRustlings" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ryanthegentry/Rustlings on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "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-2/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: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be8c672fbd75128b34a828b3b62e8e40a3c5fb0b8608bbaacd0024ab4b0a19d0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "be8c672fbd75128b34a828b3b62e8e40a3c5fb0b8608bbaacd0024ab4b0a19d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be8c672fbd75128b34a828b3b62e8e40a3c5fb0b8608bbaacd0024ab4b0a19d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be8c672fbd75128b34a828b3b62e8e40a3c5fb0b8608bbaacd0024ab4b0a19d0", kill_on_drop: false }`
[INFO] [stdout] be8c672fbd75128b34a828b3b62e8e40a3c5fb0b8608bbaacd0024ab4b0a19d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2c2c14eb898bbb8186d7f89257cef47869bba97dff69626eea6be3cda1215f9f
[INFO] running `Command { std: "docker" "start" "-a" "2c2c14eb898bbb8186d7f89257cef47869bba97dff69626eea6be3cda1215f9f", 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 cfg-if v0.1.10
[INFO] [stderr]    Compiling escargot v0.5.0
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking tests_intro v0.1.0 (/opt/rustwide/workdir/Writing Automated Tests/Tests/Intro)
[INFO] [stderr]     Checking testing_task v0.1.0 (/opt/rustwide/workdir/Writing Automated Tests/Tests/Testing Task)
[INFO] [stderr]     Checking if_task v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/If/If Task)
[INFO] [stderr]     Checking calculate_price v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Variables and Functions Test/Calculate Price)
[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] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `if_task`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused import: `std::cmp::Ordering`
[INFO] [stdout]  --> Common Programming Concepts/Variables and Functions Test/Calculate Price/src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::Ordering;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `can_hold`
[INFO] [stdout]  --> Writing Automated Tests/Tests/Intro/src/lib.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn can_hold(&self, other: &Rectangle) -> bool {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "2c2c14eb898bbb8186d7f89257cef47869bba97dff69626eea6be3cda1215f9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c2c14eb898bbb8186d7f89257cef47869bba97dff69626eea6be3cda1215f9f", kill_on_drop: false }`
[INFO] [stdout] 2c2c14eb898bbb8186d7f89257cef47869bba97dff69626eea6be3cda1215f9f