[INFO] cloning repository https://github.com/xdevs23/terribly-failed-doubly-linked-list-in-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xdevs23/terribly-failed-doubly-linked-list-in-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxdevs23%2Fterribly-failed-doubly-linked-list-in-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxdevs23%2Fterribly-failed-doubly-linked-list-in-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e87d03b837f5ce67b81d4afbe12d0a62ccd05eaf
[INFO] checking xdevs23/terribly-failed-doubly-linked-list-in-rust against try#575650af7d7ca88602df28e39d27bf3e456c306e for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxdevs23%2Fterribly-failed-doubly-linked-list-in-rust" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xdevs23/terribly-failed-doubly-linked-list-in-rust on toolchain 575650af7d7ca88602df28e39d27bf3e456c306e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/xdevs23/terribly-failed-doubly-linked-list-in-rust
[INFO] finished tweaking git repo https://github.com/xdevs23/terribly-failed-doubly-linked-list-in-rust
[INFO] tweaked toml for git repo https://github.com/xdevs23/terribly-failed-doubly-linked-list-in-rust written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/xdevs23/terribly-failed-doubly-linked-list-in-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1bac440fd15d1388e960f4e844c2c34ad0f87c32f4b7449d8bcb95c88a49dee6
[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" "1bac440fd15d1388e960f4e844c2c34ad0f87c32f4b7449d8bcb95c88a49dee6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1bac440fd15d1388e960f4e844c2c34ad0f87c32f4b7449d8bcb95c88a49dee6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bac440fd15d1388e960f4e844c2c34ad0f87c32f4b7449d8bcb95c88a49dee6", kill_on_drop: false }`
[INFO] [stdout] 1bac440fd15d1388e960f4e844c2c34ad0f87c32f4b7449d8bcb95c88a49dee6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5bbf7f417df8ebcae2027e06c2164411930a210b15b440c6985b26e275ab74b9
[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" "5bbf7f417df8ebcae2027e06c2164411930a210b15b440c6985b26e275ab74b9", kill_on_drop: false }`
[INFO] [stderr]     Checking dbl-ll v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0382]: use of moved value: `list`
[INFO] [stdout]   --> src/main.rs:59:19
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let list = LinkedList {
[INFO] [stdout]    |         ---- move occurs because `list` has type `LinkedList<'_, &str>`, which does not implement the `Copy` trait
[INFO] [stdout] ...
[INFO] [stdout] 58 |     list.add(&data);
[INFO] [stdout]    |          ---------- `list` moved due to this method call
[INFO] [stdout] 59 |     let newdata = list.get(0);
[INFO] [stdout]    |                   ^^^^ value used here after move
[INFO] [stdout]    |
[INFO] [stdout] note: this function consumes the receiver `self` by taking ownership of it, which moves `list`
[INFO] [stdout]   --> src/main.rs:20:16
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn add(self, data: &'a T) {
[INFO] [stdout]    |                ^^^^
[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 E0382`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dbl-ll`
[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] error[E0382]: use of moved value: `list`
[INFO] [stdout]   --> src/main.rs:59:19
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let list = LinkedList {
[INFO] [stdout]    |         ---- move occurs because `list` has type `LinkedList<'_, &str>`, which does not implement the `Copy` trait
[INFO] [stdout] ...
[INFO] [stdout] 58 |     list.add(&data);
[INFO] [stdout]    |          ---------- `list` moved due to this method call
[INFO] [stdout] 59 |     let newdata = list.get(0);
[INFO] [stdout]    |                   ^^^^ value used here after move
[INFO] [stdout]    |
[INFO] [stdout] note: this function consumes the receiver `self` by taking ownership of it, which moves `list`
[INFO] [stdout]   --> src/main.rs:20:16
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn add(self, data: &'a T) {
[INFO] [stdout]    |                ^^^^
[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 E0382`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "5bbf7f417df8ebcae2027e06c2164411930a210b15b440c6985b26e275ab74b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bbf7f417df8ebcae2027e06c2164411930a210b15b440c6985b26e275ab74b9", kill_on_drop: false }`
[INFO] [stdout] 5bbf7f417df8ebcae2027e06c2164411930a210b15b440c6985b26e275ab74b9