[INFO] cloning repository https://github.com/brundonsmith/data_structures_and_algorithms
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/brundonsmith/data_structures_and_algorithms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrundonsmith%2Fdata_structures_and_algorithms", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrundonsmith%2Fdata_structures_and_algorithms'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b854c5e099c8880c8d0543ed4782c8f12c426fda
[INFO] testing brundonsmith/data_structures_and_algorithms against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrundonsmith%2Fdata_structures_and_algorithms" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/brundonsmith/data_structures_and_algorithms on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/brundonsmith/data_structures_and_algorithms
[INFO] finished tweaking git repo https://github.com/brundonsmith/data_structures_and_algorithms
[INFO] tweaked toml for git repo https://github.com/brundonsmith/data_structures_and_algorithms written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/brundonsmith/data_structures_and_algorithms already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", 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] 0d5b1358a565dfb0eaf231cc530de6064bbc6de83987718d658d7ff97b949103
[INFO] running `Command { std: "docker" "start" "-a" "0d5b1358a565dfb0eaf231cc530de6064bbc6de83987718d658d7ff97b949103", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d5b1358a565dfb0eaf231cc530de6064bbc6de83987718d658d7ff97b949103", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d5b1358a565dfb0eaf231cc530de6064bbc6de83987718d658d7ff97b949103", kill_on_drop: false }`
[INFO] [stdout] 0d5b1358a565dfb0eaf231cc530de6064bbc6de83987718d658d7ff97b949103
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--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] 7084c68f358561dec22cd493e28aa63d573e56d4f2746baafe5a0645e15d6740
[INFO] running `Command { std: "docker" "start" "-a" "7084c68f358561dec22cd493e28aa63d573e56d4f2746baafe5a0645e15d6740", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling data_structures_and_algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/algorithms/sort.rs:2:22
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub type SortFn<T> = Fn(&mut [T]) -> ();
[INFO] [stdout]   |                      ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut [T]) -> ()`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `data_structures_and_algorithms`
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | / mod algorithms;
[INFO] [stdout] 3 | | mod data_structures;
[INFO] [stdout]   | |____________________^ consider adding a `main` function to `src/main.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `data_structures_and_algorithms`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "7084c68f358561dec22cd493e28aa63d573e56d4f2746baafe5a0645e15d6740", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7084c68f358561dec22cd493e28aa63d573e56d4f2746baafe5a0645e15d6740", kill_on_drop: false }`
[INFO] [stdout] 7084c68f358561dec22cd493e28aa63d573e56d4f2746baafe5a0645e15d6740