[INFO] cloning repository https://github.com/YoonSung/Rust-Sort
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/YoonSung/Rust-Sort" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYoonSung%2FRust-Sort", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYoonSung%2FRust-Sort'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 15c10df3566a6c8ab08d5020344fdfd2f3a26169
[INFO] checking YoonSung/Rust-Sort against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYoonSung%2FRust-Sort" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/YoonSung/Rust-Sort on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/YoonSung/Rust-Sort
[INFO] finished tweaking git repo https://github.com/YoonSung/Rust-Sort
[INFO] tweaked toml for git repo https://github.com/YoonSung/Rust-Sort written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/YoonSung/Rust-Sort already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 10482c6ffb199aaef544513d74c024502ccebc8080679c07cb03ddd5ea682504
[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" "10482c6ffb199aaef544513d74c024502ccebc8080679c07cb03ddd5ea682504", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10482c6ffb199aaef544513d74c024502ccebc8080679c07cb03ddd5ea682504", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10482c6ffb199aaef544513d74c024502ccebc8080679c07cb03ddd5ea682504", kill_on_drop: false }`
[INFO] [stdout] 10482c6ffb199aaef544513d74c024502ccebc8080679c07cb03ddd5ea682504
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20db3c8dd316c767dd4c76824f6cd8db08608ebd996fdcb034e95625f4e0eac3
[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" "20db3c8dd316c767dd4c76824f6cd8db08608ebd996fdcb034e95625f4e0eac3", kill_on_drop: false }`
[INFO] [stderr]     Checking collection_sort v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> tests/lib.rs:6:22
[INFO] [stdout]   |
[INFO] [stdout] 6 |     quick_sort::sort([1,2,3]);
[INFO] [stdout]   |                      ^^^^^^^
[INFO] [stdout]   |                      |
[INFO] [stdout]   |                      expected `&mut [i32]`, found array `[{integer}; 3]`
[INFO] [stdout]   |                      help: consider mutably borrowing here: `&mut [1,2,3]`
[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 `collection_sort`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "20db3c8dd316c767dd4c76824f6cd8db08608ebd996fdcb034e95625f4e0eac3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20db3c8dd316c767dd4c76824f6cd8db08608ebd996fdcb034e95625f4e0eac3", kill_on_drop: false }`
[INFO] [stdout] 20db3c8dd316c767dd4c76824f6cd8db08608ebd996fdcb034e95625f4e0eac3