[INFO] cloning repository https://github.com/wojciechmurimi/list [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wojciechmurimi/list" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwojciechmurimi%2Flist", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwojciechmurimi%2Flist'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1e1e3919cd653335f6104d6e64055fbeb17f80dc [INFO] checking wojciechmurimi/list against master#46424fb5054f211ec836c5c03159f92e46bb35ac for pr-139042 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwojciechmurimi%2Flist" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/wojciechmurimi/list on toolchain 46424fb5054f211ec836c5c03159f92e46bb35ac [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/wojciechmurimi/list [INFO] finished tweaking git repo https://github.com/wojciechmurimi/list [INFO] tweaked toml for git repo https://github.com/wojciechmurimi/list written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/wojciechmurimi/list 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" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "fetch" "--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-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 76b8af9acf61b53566a559fa9227926b214674f36b3077950cc13029923cd0a9 [INFO] running `Command { std: "docker" "start" "-a" "76b8af9acf61b53566a559fa9227926b214674f36b3077950cc13029923cd0a9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "76b8af9acf61b53566a559fa9227926b214674f36b3077950cc13029923cd0a9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "76b8af9acf61b53566a559fa9227926b214674f36b3077950cc13029923cd0a9", kill_on_drop: false }` [INFO] [stdout] 76b8af9acf61b53566a559fa9227926b214674f36b3077950cc13029923cd0a9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 96c40aa82b6b9f15defdb1759bf26003d0f327aea585413a90be9a77c130518f [INFO] running `Command { std: "docker" "start" "-a" "96c40aa82b6b9f15defdb1759bf26003d0f327aea585413a90be9a77c130518f", kill_on_drop: false }` [INFO] [stderr] Checking fplay v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `fs::File` [INFO] [stdout] --> src/linkedlist.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | fs::File, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `linkedlist::LinkedList` [INFO] [stdout] --> src/main.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use linkedlist::LinkedList; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `fs::File` [INFO] [stdout] --> src/linkedlist.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | fs::File, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `linkedlist::LinkedList` [INFO] [stdout] --> src/main.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use linkedlist::LinkedList; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `io::Read` [INFO] [stdout] --> src/linkedlist.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | io::Read, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `states` is never read [INFO] [stdout] --> src/linkedlist.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 8 | pub struct LinkedList { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 15 | states: Vec>>, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/linkedlist.rs:28:8 [INFO] [stdout] | [INFO] [stdout] 27 | impl Node { [INFO] [stdout] | --------------- associated function in this implementation [INFO] [stdout] 28 | fn new(data: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple associated items are never used [INFO] [stdout] --> src/linkedlist.rs:60:12 [INFO] [stdout] | [INFO] [stdout] 59 | impl LinkedList { [INFO] [stdout] | ------------------------------ associated items in this implementation [INFO] [stdout] 60 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 88 | pub fn insert_before(&mut self, mut target: NonNull>, data: T) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 110 | pub fn insert_after(&mut self, target: NonNull>, data: T) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 132 | pub fn forward(&mut self) -> Result<(), ()> { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 141 | fn is_at_end(&self) -> bool { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 145 | fn is_at_start(&self) -> bool { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 149 | pub fn backward(&mut self) -> Result<(), ()> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 158 | pub fn begin(&mut self) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 162 | pub fn end(&mut self) { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 166 | pub fn prepend(&mut self, data: T) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 175 | pub fn insert(&mut self, data: T) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 186 | pub fn insert_with_action(&mut self, data:T, action: F) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 193 | pub fn action(&mut self, action: F) [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 199 | pub fn append(&mut self, data: T) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 208 | pub fn edit(&mut self, data: T) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 215 | fn init_iter_markers(&mut self) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 229 | pub fn remove(&mut self) -> Option> { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 233 | pub fn get(&self) -> Option<&T> { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 241 | pub fn get_mut(&mut self) -> Option<&mut T> { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 265 | pub fn save_state(&mut self) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 269 | pub fn restore_state(&mut self) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `io::Read` [INFO] [stdout] --> src/linkedlist.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | io::Read, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `states` is never read [INFO] [stdout] --> src/linkedlist.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 8 | pub struct LinkedList { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 15 | states: Vec>>, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple methods are never used [INFO] [stdout] --> src/linkedlist.rs:158:12 [INFO] [stdout] | [INFO] [stdout] 59 | impl LinkedList { [INFO] [stdout] | ------------------------------ methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 158 | pub fn begin(&mut self) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 162 | pub fn end(&mut self) { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 186 | pub fn insert_with_action(&mut self, data:T, action: F) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 193 | pub fn action(&mut self, action: F) [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 215 | fn init_iter_markers(&mut self) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 241 | pub fn get_mut(&mut self) -> Option<&mut T> { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 265 | pub fn save_state(&mut self) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 269 | pub fn restore_state(&mut self) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/linkedlist.rs:448:9 [INFO] [stdout] | [INFO] [stdout] 448 | list.backward(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 448 | let _ = list.backward(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/linkedlist.rs:452:9 [INFO] [stdout] | [INFO] [stdout] 452 | list.forward(); [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 452 | let _ = list.forward(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s [INFO] running `Command { std: "docker" "inspect" "96c40aa82b6b9f15defdb1759bf26003d0f327aea585413a90be9a77c130518f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "96c40aa82b6b9f15defdb1759bf26003d0f327aea585413a90be9a77c130518f", kill_on_drop: false }` [INFO] [stdout] 96c40aa82b6b9f15defdb1759bf26003d0f327aea585413a90be9a77c130518f