[INFO] cloning repository https://github.com/system125/Doubly_linked_list_rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/system125/Doubly_linked_list_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsystem125%2FDoubly_linked_list_rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsystem125%2FDoubly_linked_list_rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 479db7c23e7658eb49bb9f435d5930eb298305c5 [INFO] building system125/Doubly_linked_list_rust against master#44f415c1d617ebc7b931a243b7b321ef8a6ca47c for pr-142134-abi-ast-error [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsystem125%2FDoubly_linked_list_rust" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/system125/Doubly_linked_list_rust on toolchain 44f415c1d617ebc7b931a243b7b321ef8a6ca47c [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/system125/Doubly_linked_list_rust [INFO] finished tweaking git repo https://github.com/system125/Doubly_linked_list_rust [INFO] tweaked toml for git repo https://github.com/system125/Doubly_linked_list_rust written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/system125/Doubly_linked_list_rust 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" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 97a9f082e585ec47aaa8696c246d9a2c6c9fa0f29513ed220609d3d4b7e1b2bf [INFO] running `Command { std: "docker" "start" "-a" "97a9f082e585ec47aaa8696c246d9a2c6c9fa0f29513ed220609d3d4b7e1b2bf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "97a9f082e585ec47aaa8696c246d9a2c6c9fa0f29513ed220609d3d4b7e1b2bf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "97a9f082e585ec47aaa8696c246d9a2c6c9fa0f29513ed220609d3d4b7e1b2bf", kill_on_drop: false }` [INFO] [stdout] 97a9f082e585ec47aaa8696c246d9a2c6c9fa0f29513ed220609d3d4b7e1b2bf [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4186224bdb0b574a4d727d27bd2654d0587ef3d0db55226ed980442bc74a762d [INFO] running `Command { std: "docker" "start" "-a" "4186224bdb0b574a4d727d27bd2654d0587ef3d0db55226ed980442bc74a762d", kill_on_drop: false }` [INFO] [stderr] Compiling doubly_linked_list v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `Ref` and `Weak` [INFO] [stdout] --> src/doubly_linked_list/doubly_linked_list.rs:3:9 [INFO] [stdout] | [INFO] [stdout] 3 | Ref, [INFO] [stdout] | ^^^ [INFO] [stdout] 4 | RefCell}, rc::{Rc, Weak} [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Doubly_Linked_List` should have an upper camel case name [INFO] [stdout] --> src/doubly_linked_list/doubly_linked_list.rs:20:12 [INFO] [stdout] | [INFO] [stdout] 20 | pub struct Doubly_Linked_List { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `DoublyLinkedList` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `nextNodeType` should have an upper camel case name [INFO] [stdout] --> src/doubly_linked_list/node.rs:5:10 [INFO] [stdout] | [INFO] [stdout] 5 | pub type nextNodeType = Option>>>; [INFO] [stdout] | ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `NextNodeType` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `prevNodeType` should have an upper camel case name [INFO] [stdout] --> src/doubly_linked_list/node.rs:6:10 [INFO] [stdout] | [INFO] [stdout] 6 | pub type prevNodeType = Option>>>; [INFO] [stdout] | ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `PrevNodeType` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Reverse_Iterator` should have an upper camel case name [INFO] [stdout] --> src/doubly_linked_list/reversed_linked_list_iterator.rs:7:12 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct Reverse_Iterator { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `ReverseIterator` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Doubly_Linked_List_Iterator` should have an upper camel case name [INFO] [stdout] --> src/doubly_linked_list/linked_list_iterator.rs:6:12 [INFO] [stdout] | [INFO] [stdout] 6 | pub struct Doubly_Linked_List_Iterator { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `DoublyLinkedListIterator` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `self` [INFO] [stdout] --> src/doubly_linked_list/test_doubly_linked_list.rs:1:33 [INFO] [stdout] | [INFO] [stdout] 1 | use super::doubly_linked_list::{self, Doubly_Linked_List}; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/doubly_linked_list/doubly_linked_list.rs:96:9 [INFO] [stdout] | [INFO] [stdout] 80 | / loop { [INFO] [stdout] 81 | | [INFO] [stdout] 82 | | if current_count == index { [INFO] [stdout] 83 | | return Some(current_node); [INFO] [stdout] ... | [INFO] [stdout] 93 | | current_count += 1; [INFO] [stdout] 94 | | } [INFO] [stdout] | |_________- any code following this expression is unreachable [INFO] [stdout] 95 | [INFO] [stdout] 96 | None [INFO] [stdout] | ^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/doubly_linked_list/doubly_linked_list.rs:176:9 [INFO] [stdout] | [INFO] [stdout] 173 | / loop { [INFO] [stdout] 174 | | [INFO] [stdout] 175 | | } [INFO] [stdout] | |_________- any code following this expression is unreachable [INFO] [stdout] 176 | None [INFO] [stdout] | ^^^^ unreachable expression [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/doubly_linked_list/doubly_linked_list.rs:45:29 [INFO] [stdout] | [INFO] [stdout] 45 | if let Some(mut tail_ptr) = tail_ptr.upgrade(){ [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `current_ptr` [INFO] [stdout] --> src/doubly_linked_list/doubly_linked_list.rs:170:13 [INFO] [stdout] | [INFO] [stdout] 170 | let current_ptr = head_ptr; [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_ptr` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `current_count` [INFO] [stdout] --> src/doubly_linked_list/doubly_linked_list.rs:171:13 [INFO] [stdout] | [INFO] [stdout] 171 | let current_count = 0; [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_count` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/doubly_linked_list/reversed_linked_list_iterator.rs:17:13 [INFO] [stdout] | [INFO] [stdout] 17 | let mut prevNode = currentNode [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `create_linked_list` is never used [INFO] [stdout] --> src/doubly_linked_list/test_doubly_linked_list.rs:3:4 [INFO] [stdout] | [INFO] [stdout] 3 | fn create_linked_list()-> Doubly_Linked_List{ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `currentNode` should have a snake case name [INFO] [stdout] --> src/doubly_linked_list/reversed_linked_list_iterator.rs:15:13 [INFO] [stdout] | [INFO] [stdout] 15 | let currentNode = self.current.take()?.clone(); [INFO] [stdout] | ^^^^^^^^^^^ help: convert the identifier to snake case: `current_node` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `prevNode` should have a snake case name [INFO] [stdout] --> src/doubly_linked_list/reversed_linked_list_iterator.rs:17:17 [INFO] [stdout] | [INFO] [stdout] 17 | let mut prevNode = currentNode [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to snake case: `prev_node` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `currentNode` should have a snake case name [INFO] [stdout] --> src/doubly_linked_list/linked_list_iterator.rs:14:13 [INFO] [stdout] | [INFO] [stdout] 14 | let currentNode = self [INFO] [stdout] | ^^^^^^^^^^^ help: convert the identifier to snake case: `current_node` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s [INFO] running `Command { std: "docker" "inspect" "4186224bdb0b574a4d727d27bd2654d0587ef3d0db55226ed980442bc74a762d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4186224bdb0b574a4d727d27bd2654d0587ef3d0db55226ed980442bc74a762d", kill_on_drop: false }` [INFO] [stdout] 4186224bdb0b574a4d727d27bd2654d0587ef3d0db55226ed980442bc74a762d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8f2d0d073a5b5cf5a7b59f0c1ced28190cd1dd8ef3aadad6615df4511e817afb [INFO] running `Command { std: "docker" "start" "-a" "8f2d0d073a5b5cf5a7b59f0c1ced28190cd1dd8ef3aadad6615df4511e817afb", kill_on_drop: false }` [INFO] [stderr] Compiling doubly_linked_list v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `Ref` and `Weak` [INFO] [stdout] --> src/doubly_linked_list/doubly_linked_list.rs:3:9 [INFO] [stdout] | [INFO] [stdout] 3 | Ref, [INFO] [stdout] | ^^^ [INFO] [stdout] 4 | RefCell}, rc::{Rc, Weak} [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `doubly_linked_list` (bin "doubly_linked_list" test); 1 warning emitted [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] No space left on device (os error 28) [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] failed to parse process output: `/opt/rustwide/rustup-home/toolchains/44f415c1d617ebc7b931a243b7b321ef8a6ca47c/bin/rustc --crate-name doubly_linked_list --edition=2021 src/main.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=dd40240813d46b54 -C extra-filename=-6928f23a96ab67b8 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn` (exit status: 1) [INFO] running `Command { std: "docker" "inspect" "8f2d0d073a5b5cf5a7b59f0c1ced28190cd1dd8ef3aadad6615df4511e817afb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8f2d0d073a5b5cf5a7b59f0c1ced28190cd1dd8ef3aadad6615df4511e817afb", kill_on_drop: false }` [INFO] [stdout] 8f2d0d073a5b5cf5a7b59f0c1ced28190cd1dd8ef3aadad6615df4511e817afb