[INFO] cloning repository https://github.com/mwdev22/dsa [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mwdev22/dsa" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmwdev22%2Fdsa", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmwdev22%2Fdsa'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5c9014365ee33c6341b138591c63fd38c79c611c [INFO] checking mwdev22/dsa against try#ac4c3613be2acd5395b65d85e5657b81e3c982f0 for pr-154585 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmwdev22%2Fdsa" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/mwdev22/dsa [INFO] finished tweaking git repo https://github.com/mwdev22/dsa [INFO] tweaked toml for git repo https://github.com/mwdev22/dsa written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/mwdev22/dsa on toolchain ac4c3613be2acd5395b65d85e5657b81e3c982f0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ac4c3613be2acd5395b65d85e5657b81e3c982f0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/mwdev22/dsa 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" "+ac4c3613be2acd5395b65d85e5657b81e3c982f0" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ac4c3613be2acd5395b65d85e5657b81e3c982f0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 456713d0abbaf392c089afb405df5ac412849e57430790334fa6fc8226514e4d [INFO] running `Command { std: "docker" "start" "-a" "456713d0abbaf392c089afb405df5ac412849e57430790334fa6fc8226514e4d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "456713d0abbaf392c089afb405df5ac412849e57430790334fa6fc8226514e4d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "456713d0abbaf392c089afb405df5ac412849e57430790334fa6fc8226514e4d", kill_on_drop: false }` [INFO] [stdout] 456713d0abbaf392c089afb405df5ac412849e57430790334fa6fc8226514e4d [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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ac4c3613be2acd5395b65d85e5657b81e3c982f0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d4d3a87d3b69fe8c749ad219f4b03e56859c8a35c11b7f506eecb225ef8aded3 [INFO] running `Command { std: "docker" "start" "-a" "d4d3a87d3b69fe8c749ad219f4b03e56859c8a35c11b7f506eecb225ef8aded3", kill_on_drop: false }` [INFO] [stderr] Checking dsa v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/linked_list.rs:25:30 [INFO] [stdout] | [INFO] [stdout] 25 | Node{val: val, next: None} [INFO] [stdout] | ^^^^ expected `Box>>`, found `Option<_>` [INFO] [stdout] | [INFO] [stdout] = note: expected struct `Box>>` [INFO] [stdout] found enum `Option<_>` [INFO] [stdout] = note: for more on the distinction between the stack and the heap, read https://doc.rust-lang.org/book/ch15-01-box.html, https://doc.rust-lang.org/rust-by-example/std/box.html, and https://doc.rust-lang.org/std/boxed/index.html [INFO] [stdout] help: store this in the heap by calling `Box::new` [INFO] [stdout] | [INFO] [stdout] 25 | Node{val: val, next: Box::new(None)} [INFO] [stdout] | +++++++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/linked_list.rs:25:30 [INFO] [stdout] | [INFO] [stdout] 25 | Node{val: val, next: None} [INFO] [stdout] | ^^^^ expected `Box>>`, found `Option<_>` [INFO] [stdout] | [INFO] [stdout] = note: expected struct `Box>>` [INFO] [stdout] found enum `Option<_>` [INFO] [stdout] = note: for more on the distinction between the stack and the heap, read https://doc.rust-lang.org/book/ch15-01-box.html, https://doc.rust-lang.org/rust-by-example/std/box.html, and https://doc.rust-lang.org/std/boxed/index.html [INFO] [stdout] help: store this in the heap by calling `Box::new` [INFO] [stdout] | [INFO] [stdout] 25 | Node{val: val, next: Box::new(None)} [INFO] [stdout] | +++++++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `element` [INFO] [stdout] --> src/linked_list.rs:18:30 [INFO] [stdout] | [INFO] [stdout] 18 | pub fn insert(&mut self, element: T) { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_element` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `element` [INFO] [stdout] --> src/linked_list.rs:18:30 [INFO] [stdout] | [INFO] [stdout] 18 | pub fn insert(&mut self, element: T) { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_element` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [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 `dsa` (lib) due to 1 previous error; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `dsa` (lib test) due to 1 previous error; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "d4d3a87d3b69fe8c749ad219f4b03e56859c8a35c11b7f506eecb225ef8aded3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d4d3a87d3b69fe8c749ad219f4b03e56859c8a35c11b7f506eecb225ef8aded3", kill_on_drop: false }` [INFO] [stdout] d4d3a87d3b69fe8c749ad219f4b03e56859c8a35c11b7f506eecb225ef8aded3