[INFO] fetching crate learn_rust_bugs 0.1.0... [INFO] testing learn_rust_bugs-0.1.0 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1 [INFO] extracting crate learn_rust_bugs 0.1.0 into /workspace/builds/worker-3-tc1/source [INFO] started tweaking crates.io crate learn_rust_bugs 0.1.0 [INFO] finished tweaking crates.io crate learn_rust_bugs 0.1.0 [INFO] tweaked toml for crates.io crate learn_rust_bugs 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate learn_rust_bugs 0.1.0 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate learn_rust_bugs 0.1.0 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 425b8030befd24f6177f5ad60a552092f5c5f84fbcbe432c275cd2627e8242ba [INFO] running `Command { std: "docker" "start" "-a" "425b8030befd24f6177f5ad60a552092f5c5f84fbcbe432c275cd2627e8242ba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "425b8030befd24f6177f5ad60a552092f5c5f84fbcbe432c275cd2627e8242ba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "425b8030befd24f6177f5ad60a552092f5c5f84fbcbe432c275cd2627e8242ba", kill_on_drop: false }` [INFO] [stdout] 425b8030befd24f6177f5ad60a552092f5c5f84fbcbe432c275cd2627e8242ba [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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b3a600d0fdd5d9cc91e416fba354b622b5f23a544996b592d260493fa7403069 [INFO] running `Command { std: "docker" "start" "-a" "b3a600d0fdd5d9cc91e416fba354b622b5f23a544996b592d260493fa7403069", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.139 [INFO] [stderr] Compiling regex-syntax v0.6.28 [INFO] [stderr] Compiling termcolor v1.2.0 [INFO] [stderr] Compiling aho-corasick v0.7.20 [INFO] [stderr] Compiling regex v1.7.1 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling env_logger v0.9.3 [INFO] [stderr] Compiling learn_rust_bugs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::rc::Rc` [INFO] [stdout] --> src/locks.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::rc::Rc; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `post` [INFO] [stdout] --> src/state_pattern/states.rs:6:27 [INFO] [stdout] | [INFO] [stdout] 6 | fn content<'a>(&self, post: &'a Post) -> &'a str { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_post` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `MyBox` is never constructed [INFO] [stdout] --> src/boxs/deref.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct MyBox(T); [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/boxs/deref.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 5 | impl MyBox { [INFO] [stdout] | ---------------- associated function in this implementation [INFO] [stdout] 6 | fn new(x: T) -> MyBox { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `mybox_test` is never used [INFO] [stdout] --> src/boxs/deref.rs:18:4 [INFO] [stdout] | [INFO] [stdout] 18 | fn mybox_test() { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/boxs/linked_list.rs:8:10 [INFO] [stdout] | [INFO] [stdout] 8 | Cons(Rc>, Rc), [INFO] [stdout] | ---- ^^^^^^^^^^^^^^^^ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 8 - Cons(Rc>, Rc), [INFO] [stdout] 8 + Cons((), ()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `MessageSender` is never used [INFO] [stdout] --> src/boxs/refcells.rs:4:7 [INFO] [stdout] | [INFO] [stdout] 4 | trait MessageSender { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `LimitChecker` is never constructed [INFO] [stdout] --> src/boxs/refcells.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 8 | struct LimitChecker<'a, T> [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `set_value` are never used [INFO] [stdout] --> src/boxs/refcells.rs:21:12 [INFO] [stdout] | [INFO] [stdout] 17 | / impl<'a, T> LimitChecker<'a, T> [INFO] [stdout] 18 | | where [INFO] [stdout] 19 | | T: MessageSender, [INFO] [stdout] | |_____________________- associated items in this implementation [INFO] [stdout] 20 | { [INFO] [stdout] 21 | pub fn new(message_sender: &'a T, max: usize) -> LimitChecker<'a, T> { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 29 | pub fn set_value(&mut self, value: usize) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `value`, `parent`, and `children` are never read [INFO] [stdout] --> src/boxs/trees.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 5 | pub struct Node { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 6 | value: i32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 7 | parent: RefCell>, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 8 | children: RefCell>>, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `tree_test` is never used [INFO] [stdout] --> src/boxs/trees.rs:11:4 [INFO] [stdout] | [INFO] [stdout] 11 | fn tree_test() { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Post` is never constructed [INFO] [stdout] --> src/state_pattern.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct Post { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `add_text`, `request_review`, `approve`, and `content` are never used [INFO] [stdout] --> src/state_pattern.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 8 | impl Post { [INFO] [stdout] | --------- associated items in this implementation [INFO] [stdout] 9 | pub fn new() -> Post { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 15 | pub fn add_text(&mut self, msg: &str) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 18 | pub fn request_review(&mut self) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 21 | pub fn approve(&mut self) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 24 | pub fn content(&self) -> &str { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `State` is never used [INFO] [stdout] --> src/state_pattern/states.rs:3:11 [INFO] [stdout] | [INFO] [stdout] 3 | pub trait State { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Draft` is never constructed [INFO] [stdout] --> src/state_pattern/states.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 11 | pub struct Draft {} [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `PendingReview` is never constructed [INFO] [stdout] --> src/state_pattern/states.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 12 | struct PendingReview {} [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Approved` is never constructed [INFO] [stdout] --> src/state_pattern/states.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 13 | struct Approved {} [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static `COUNT` is never used [INFO] [stdout] --> src/unsafes.rs:47:12 [INFO] [stdout] | [INFO] [stdout] 47 | static mut COUNT: u32 = 0; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.74s [INFO] running `Command { std: "docker" "inspect" "b3a600d0fdd5d9cc91e416fba354b622b5f23a544996b592d260493fa7403069", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b3a600d0fdd5d9cc91e416fba354b622b5f23a544996b592d260493fa7403069", kill_on_drop: false }` [INFO] [stdout] b3a600d0fdd5d9cc91e416fba354b622b5f23a544996b592d260493fa7403069 [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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ab641bc30bd64ecb4f4ab21051cbe21d9457fd9668b89376996d6acd6fa5abe8 [INFO] running `Command { std: "docker" "start" "-a" "ab641bc30bd64ecb4f4ab21051cbe21d9457fd9668b89376996d6acd6fa5abe8", kill_on_drop: false }` [INFO] [stdout] warning: unused import: `std::rc::Rc` [INFO] [stdout] --> src/locks.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::rc::Rc; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `post` [INFO] [stdout] --> src/state_pattern/states.rs:6:27 [INFO] [stdout] | [INFO] [stdout] 6 | fn content<'a>(&self, post: &'a Post) -> &'a str { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_post` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `MyBox` is never constructed [INFO] [stdout] --> src/boxs/deref.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct MyBox(T); [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/boxs/deref.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 5 | impl MyBox { [INFO] [stdout] | ---------------- associated function in this implementation [INFO] [stdout] 6 | fn new(x: T) -> MyBox { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `mybox_test` is never used [INFO] [stdout] --> src/boxs/deref.rs:18:4 [INFO] [stdout] | [INFO] [stdout] 18 | fn mybox_test() { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/boxs/linked_list.rs:8:10 [INFO] [stdout] | [INFO] [stdout] 8 | Cons(Rc>, Rc), [INFO] [stdout] | ---- ^^^^^^^^^^^^^^^^ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 8 - Cons(Rc>, Rc), [INFO] [stdout] 8 + Cons((), ()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `MessageSender` is never used [INFO] [stdout] --> src/boxs/refcells.rs:4:7 [INFO] [stdout] | [INFO] [stdout] 4 | trait MessageSender { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `LimitChecker` is never constructed [INFO] [stdout] --> src/boxs/refcells.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 8 | struct LimitChecker<'a, T> [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `set_value` are never used [INFO] [stdout] --> src/boxs/refcells.rs:21:12 [INFO] [stdout] | [INFO] [stdout] 17 | / impl<'a, T> LimitChecker<'a, T> [INFO] [stdout] 18 | | where [INFO] [stdout] 19 | | T: MessageSender, [INFO] [stdout] | |_____________________- associated items in this implementation [INFO] [stdout] 20 | { [INFO] [stdout] 21 | pub fn new(message_sender: &'a T, max: usize) -> LimitChecker<'a, T> { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 29 | pub fn set_value(&mut self, value: usize) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `value`, `parent`, and `children` are never read [INFO] [stdout] --> src/boxs/trees.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 5 | pub struct Node { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 6 | value: i32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 7 | parent: RefCell>, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 8 | children: RefCell>>, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `tree_test` is never used [INFO] [stdout] --> src/boxs/trees.rs:11:4 [INFO] [stdout] | [INFO] [stdout] 11 | fn tree_test() { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Post` is never constructed [INFO] [stdout] --> src/state_pattern.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct Post { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `add_text`, `request_review`, `approve`, and `content` are never used [INFO] [stdout] --> src/state_pattern.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 8 | impl Post { [INFO] [stdout] | --------- associated items in this implementation [INFO] [stdout] 9 | pub fn new() -> Post { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 15 | pub fn add_text(&mut self, msg: &str) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 18 | pub fn request_review(&mut self) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 21 | pub fn approve(&mut self) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 24 | pub fn content(&self) -> &str { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `State` is never used [INFO] [stdout] --> src/state_pattern/states.rs:3:11 [INFO] [stdout] | [INFO] [stdout] 3 | pub trait State { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Draft` is never constructed [INFO] [stdout] --> src/state_pattern/states.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 11 | pub struct Draft {} [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `PendingReview` is never constructed [INFO] [stdout] --> src/state_pattern/states.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 12 | struct PendingReview {} [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling learn_rust_bugs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct `Approved` is never constructed [INFO] [stdout] --> src/state_pattern/states.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 13 | struct Approved {} [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static `COUNT` is never used [INFO] [stdout] --> src/unsafes.rs:47:12 [INFO] [stdout] | [INFO] [stdout] 47 | static mut COUNT: u32 = 0; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::rc::Rc` [INFO] [stdout] --> src/locks.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::rc::Rc; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `point` [INFO] [stdout] --> tests/integration_test.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let point = Point::new(1, 2); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_point` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `post` [INFO] [stdout] --> src/state_pattern/states.rs:6:27 [INFO] [stdout] | [INFO] [stdout] 6 | fn content<'a>(&self, post: &'a Post) -> &'a str { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_post` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `MyBox` is never constructed [INFO] [stdout] --> src/boxs/deref.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct MyBox(T); [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/boxs/deref.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 5 | impl MyBox { [INFO] [stdout] | ---------------- associated function in this implementation [INFO] [stdout] 6 | fn new(x: T) -> MyBox { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `mybox_test` is never used [INFO] [stdout] --> src/boxs/deref.rs:18:4 [INFO] [stdout] | [INFO] [stdout] 18 | fn mybox_test() { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/boxs/linked_list.rs:8:10 [INFO] [stdout] | [INFO] [stdout] 8 | Cons(Rc>, Rc), [INFO] [stdout] | ---- ^^^^^^^^^^^^^^^^ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 8 - Cons(Rc>, Rc), [INFO] [stdout] 8 + Cons((), ()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `value`, `parent`, and `children` are never read [INFO] [stdout] --> src/boxs/trees.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 5 | pub struct Node { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 6 | value: i32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 7 | parent: RefCell>, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 8 | children: RefCell>>, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `tree_test` is never used [INFO] [stdout] --> src/boxs/trees.rs:11:4 [INFO] [stdout] | [INFO] [stdout] 11 | fn tree_test() { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static `COUNT` is never used [INFO] [stdout] --> src/unsafes.rs:47:12 [INFO] [stdout] | [INFO] [stdout] 47 | static mut COUNT: u32 = 0; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.83s [INFO] running `Command { std: "docker" "inspect" "ab641bc30bd64ecb4f4ab21051cbe21d9457fd9668b89376996d6acd6fa5abe8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ab641bc30bd64ecb4f4ab21051cbe21d9457fd9668b89376996d6acd6fa5abe8", kill_on_drop: false }` [INFO] [stdout] ab641bc30bd64ecb4f4ab21051cbe21d9457fd9668b89376996d6acd6fa5abe8 [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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 747bfdf11dcc287942d7f9ddbfb845f15c9ed762375cb96a123a0e2c756588b0 [INFO] running `Command { std: "docker" "start" "-a" "747bfdf11dcc287942d7f9ddbfb845f15c9ed762375cb96a123a0e2c756588b0", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `std::rc::Rc` [INFO] [stderr] --> src/locks.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::rc::Rc; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `post` [INFO] [stderr] --> src/state_pattern/states.rs:6:27 [INFO] [stderr] | [INFO] [stderr] 6 | fn content<'a>(&self, post: &'a Post) -> &'a str { [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_post` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: struct `MyBox` is never constructed [INFO] [stderr] --> src/boxs/deref.rs:3:8 [INFO] [stderr] | [INFO] [stderr] 3 | struct MyBox(T); [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: associated function `new` is never used [INFO] [stderr] --> src/boxs/deref.rs:6:8 [INFO] [stderr] | [INFO] [stderr] 5 | impl MyBox { [INFO] [stderr] | ---------------- associated function in this implementation [INFO] [stderr] 6 | fn new(x: T) -> MyBox { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function `mybox_test` is never used [INFO] [stderr] --> src/boxs/deref.rs:18:4 [INFO] [stderr] | [INFO] [stderr] 18 | fn mybox_test() { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: fields `0` and `1` are never read [INFO] [stderr] --> src/boxs/linked_list.rs:8:10 [INFO] [stderr] | [INFO] [stderr] 8 | Cons(Rc>, Rc), [INFO] [stderr] | ---- ^^^^^^^^^^^^^^^^ ^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | fields in this variant [INFO] [stderr] | [INFO] [stderr] = note: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stderr] | [INFO] [stderr] 8 - Cons(Rc>, Rc), [INFO] [stderr] 8 + Cons((), ()), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait `MessageSender` is never used [INFO] [stderr] --> src/boxs/refcells.rs:4:7 [INFO] [stderr] | [INFO] [stderr] 4 | trait MessageSender { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct `LimitChecker` is never constructed [INFO] [stderr] --> src/boxs/refcells.rs:8:8 [INFO] [stderr] | [INFO] [stderr] 8 | struct LimitChecker<'a, T> [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated items `new` and `set_value` are never used [INFO] [stderr] --> src/boxs/refcells.rs:21:12 [INFO] [stderr] | [INFO] [stderr] 17 | / impl<'a, T> LimitChecker<'a, T> [INFO] [stderr] 18 | | where [INFO] [stderr] 19 | | T: MessageSender, [INFO] [stderr] | |_____________________- associated items in this implementation [INFO] [stderr] 20 | { [INFO] [stderr] 21 | pub fn new(message_sender: &'a T, max: usize) -> LimitChecker<'a, T> { [INFO] [stderr] | ^^^ [INFO] [stderr] ... [INFO] [stderr] 29 | pub fn set_value(&mut self, value: usize) { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: fields `value`, `parent`, and `children` are never read [INFO] [stderr] --> src/boxs/trees.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 5 | pub struct Node { [INFO] [stderr] | ---- fields in this struct [INFO] [stderr] 6 | value: i32, [INFO] [stderr] | ^^^^^ [INFO] [stderr] 7 | parent: RefCell>, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] 8 | children: RefCell>>, [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] [INFO] [stderr] warning: function `tree_test` is never used [INFO] [stderr] --> src/boxs/trees.rs:11:4 [INFO] [stderr] | [INFO] [stderr] 11 | fn tree_test() { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct `Post` is never constructed [INFO] [stderr] --> src/state_pattern.rs:3:8 [INFO] [stderr] | [INFO] [stderr] 3 | struct Post { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated items `new`, `add_text`, `request_review`, `approve`, and `content` are never used [INFO] [stderr] --> src/state_pattern.rs:9:12 [INFO] [stderr] | [INFO] [stderr] 8 | impl Post { [INFO] [stderr] | --------- associated items in this implementation [INFO] [stderr] 9 | pub fn new() -> Post { [INFO] [stderr] | ^^^ [INFO] [stderr] ... [INFO] [stderr] 15 | pub fn add_text(&mut self, msg: &str) { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] ... [INFO] [stderr] 18 | pub fn request_review(&mut self) { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] ... [INFO] [stderr] 21 | pub fn approve(&mut self) { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] ... [INFO] [stderr] 24 | pub fn content(&self) -> &str { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: trait `State` is never used [INFO] [stderr] --> src/state_pattern/states.rs:3:11 [INFO] [stderr] | [INFO] [stderr] 3 | pub trait State { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct `Draft` is never constructed [INFO] [stderr] --> src/state_pattern/states.rs:11:12 [INFO] [stderr] | [INFO] [stderr] 11 | pub struct Draft {} [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct `PendingReview` is never constructed [INFO] [stderr] --> src/state_pattern/states.rs:12:8 [INFO] [stderr] | [INFO] [stderr] 12 | struct PendingReview {} [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct `Approved` is never constructed [INFO] [stderr] --> src/state_pattern/states.rs:13:8 [INFO] [stderr] | [INFO] [stderr] 13 | struct Approved {} [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: static `COUNT` is never used [INFO] [stderr] --> src/unsafes.rs:47:12 [INFO] [stderr] | [INFO] [stderr] 47 | static mut COUNT: u32 = 0; [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `learn_rust_bugs` (lib) generated 18 warnings (run `cargo fix --lib -p learn_rust_bugs` to apply 1 suggestion) [INFO] [stderr] warning: `learn_rust_bugs` (lib test) generated 9 warnings (9 duplicates) [INFO] [stderr] warning: unused variable: `point` [INFO] [stderr] --> tests/integration_test.rs:6:9 [INFO] [stderr] | [INFO] [stderr] 6 | let point = Point::new(1, 2); [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_point` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: `learn_rust_bugs` (test "integration_test") generated 1 warning [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.20s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/library-5fa4acb0f0e6b29c) [INFO] [stdout] [INFO] [stdout] running 5 tests [INFO] [stdout] test generics::test_point::test_larger ... ok [INFO] [stdout] test overload::test::add ... ok [INFO] [stdout] test boxs::refcells::test::limit_checker ... ok [INFO] [stdout] test state_pattern::test::post ... ok [INFO] [stdout] test generics::test_point::test_panic - should panic ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s [INFO] [stdout] [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/binary-8232c049f83e77d6) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running tests/integration_test.rs (/opt/rustwide/target/debug/deps/integration_test-c3c0832e00732e17) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test test_point ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests library [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test src/overload.rs - overload::MilliMeter (line 22) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.31s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "747bfdf11dcc287942d7f9ddbfb845f15c9ed762375cb96a123a0e2c756588b0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "747bfdf11dcc287942d7f9ddbfb845f15c9ed762375cb96a123a0e2c756588b0", kill_on_drop: false }` [INFO] [stdout] 747bfdf11dcc287942d7f9ddbfb845f15c9ed762375cb96a123a0e2c756588b0