[INFO] cloning repository https://github.com/mikeleppane/Crust-of-Rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mikeleppane/Crust-of-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikeleppane%2FCrust-of-Rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikeleppane%2FCrust-of-Rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b4e5a00ce068794a2fef0b86a454ab48e44f4764 [INFO] testing mikeleppane/Crust-of-Rust against master#d3515155216e98c23440ea92c3f49c6a0d7101fc for pr-113843 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikeleppane%2FCrust-of-Rust" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mikeleppane/Crust-of-Rust on toolchain d3515155216e98c23440ea92c3f49c6a0d7101fc [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d3515155216e98c23440ea92c3f49c6a0d7101fc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/mikeleppane/Crust-of-Rust [INFO] finished tweaking git repo https://github.com/mikeleppane/Crust-of-Rust [INFO] tweaked toml for git repo https://github.com/mikeleppane/Crust-of-Rust written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/mikeleppane/Crust-of-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" "+d3515155216e98c23440ea92c3f49c6a0d7101fc" "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-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+d3515155216e98c23440ea92c3f49c6a0d7101fc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5ce8f7b1aac1704745b2861033a269af66e5e390493c8e6ec03ab695eaf0bef7 [INFO] running `Command { std: "docker" "start" "-a" "5ce8f7b1aac1704745b2861033a269af66e5e390493c8e6ec03ab695eaf0bef7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5ce8f7b1aac1704745b2861033a269af66e5e390493c8e6ec03ab695eaf0bef7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5ce8f7b1aac1704745b2861033a269af66e5e390493c8e6ec03ab695eaf0bef7", kill_on_drop: false }` [INFO] [stdout] 5ce8f7b1aac1704745b2861033a269af66e5e390493c8e6ec03ab695eaf0bef7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+d3515155216e98c23440ea92c3f49c6a0d7101fc" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 790a7018e505d112d4bb9d79b9488c4895c2c8f793d2d0049ab0a7249cb40315 [INFO] running `Command { std: "docker" "start" "-a" "790a7018e505d112d4bb9d79b9488c4895c2c8f793d2d0049ab0a7249cb40315", kill_on_drop: false }` [INFO] [stderr] Compiling diff v0.1.13 [INFO] [stderr] Compiling yansi v0.5.1 [INFO] [stderr] Compiling pretty_assertions v1.3.0 [INFO] [stderr] Compiling crust-of-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: constant `LOCKED` is never used [INFO] [stdout] --> src/atomics_and_memory_ordering/atomics.rs:4:7 [INFO] [stdout] | [INFO] [stdout] 4 | const LOCKED: bool = true; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `UNLOCKED` is never used [INFO] [stdout] --> src/atomics_and_memory_ordering/atomics.rs:5:7 [INFO] [stdout] | [INFO] [stdout] 5 | const UNLOCKED: bool = false; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `locked` and `v` are never read [INFO] [stdout] --> src/atomics_and_memory_ordering/atomics.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct MyMutex { [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] 8 | locked: AtomicBool, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 9 | v: UnsafeCell, [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `with_lock` are never used [INFO] [stdout] --> src/atomics_and_memory_ordering/atomics.rs:15:12 [INFO] [stdout] | [INFO] [stdout] 14 | impl MyMutex { [INFO] [stdout] | ------------------ associated items in this implementation [INFO] [stdout] 15 | pub fn new(t: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 22 | fn with_lock(&self, f: impl FnOnce(&mut T) -> R) -> R { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `send` is never used [INFO] [stdout] --> src/channels/panama.rs:33:12 [INFO] [stdout] | [INFO] [stdout] 32 | impl Sender { [INFO] [stdout] | ----------------- method in this implementation [INFO] [stdout] 33 | pub fn send(&mut self, t: T) { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `channel` is never used [INFO] [stdout] --> src/channels/panama.rs:87:8 [INFO] [stdout] | [INFO] [stdout] 87 | pub fn channel() -> (Sender, Receiver) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `strlen` is never used [INFO] [stdout] --> src/dispatch_and_fat_pointers/main.rs:31:4 [INFO] [stdout] | [INFO] [stdout] 31 | fn strlen(s: impl AsRef) -> usize { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `strlen_dyn` is never used [INFO] [stdout] --> src/dispatch_and_fat_pointers/main.rs:35:4 [INFO] [stdout] | [INFO] [stdout] 35 | fn strlen_dyn(s: Box>) -> usize { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `bool_then` is never used [INFO] [stdout] --> src/dispatch_and_fat_pointers/main.rs:39:8 [INFO] [stdout] | [INFO] [stdout] 39 | pub fn bool_then(b: bool, f: impl FnOnce() -> T) -> Option { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `baz` is never used [INFO] [stdout] --> src/dispatch_and_fat_pointers/main.rs:49:8 [INFO] [stdout] | [INFO] [stdout] 49 | pub fn baz(s: &dyn HeiAsRef) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `slice_of_trait_object` is never used [INFO] [stdout] --> src/dispatch_and_fat_pointers/main.rs:55:8 [INFO] [stdout] | [INFO] [stdout] 55 | pub fn slice_of_trait_object(v: &[&dyn AsRef]) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/dispatch_and_fat_pointers/main.rs:61:8 [INFO] [stdout] | [INFO] [stdout] 61 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `ny` is never used [INFO] [stdout] --> src/drop_check/boks.rs:32:12 [INFO] [stdout] | [INFO] [stdout] 31 | impl Boks { [INFO] [stdout] | --------------- associated function in this implementation [INFO] [stdout] 32 | pub fn ny(t: T) -> Self { [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `strtok` is never used [INFO] [stdout] --> src/subtyping_and_variance/strtok.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | pub fn strtok<'a>(s: &'_ mut &'a str, delimiter: char) -> &'a str { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `core::str::::len` that must be used [INFO] [stdout] --> src/dispatch_and_fat_pointers/main.rs:52:5 [INFO] [stdout] | [INFO] [stdout] 52 | s.len(); [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 52 | let _ = s.len(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary allocation, use `&` instead [INFO] [stdout] --> src/dispatch_and_fat_pointers/main.rs:66:29 [INFO] [stdout] | [INFO] [stdout] 66 | slice_of_trait_object(&[Box::new("hello").as_ref()]) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_allocation)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Box::::from_raw` that must be used [INFO] [stdout] --> src/drop_check/boks.rs:10:18 [INFO] [stdout] | [INFO] [stdout] 10 | unsafe { Box::from_raw(self.p) }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box` [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 10 | unsafe { let _ = Box::from_raw(self.p); }; [INFO] [stdout] | +++++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/smart_pointers_and_interior_mutability/rc.rs:64:13 [INFO] [stdout] | [INFO] [stdout] 64 | drop(inner); [INFO] [stdout] | ^^^^^-----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&RcInner` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 18 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.16s [INFO] running `Command { std: "docker" "inspect" "790a7018e505d112d4bb9d79b9488c4895c2c8f793d2d0049ab0a7249cb40315", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "790a7018e505d112d4bb9d79b9488c4895c2c8f793d2d0049ab0a7249cb40315", kill_on_drop: false }` [INFO] [stdout] 790a7018e505d112d4bb9d79b9488c4895c2c8f793d2d0049ab0a7249cb40315 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+d3515155216e98c23440ea92c3f49c6a0d7101fc" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2e4e3b5f424f58771ff05cff4ddae0f24d2394d622cf4b5db182afa7726e111f [INFO] running `Command { std: "docker" "start" "-a" "2e4e3b5f424f58771ff05cff4ddae0f24d2394d622cf4b5db182afa7726e111f", kill_on_drop: false }` [INFO] [stderr] Compiling crust-of-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `pretty_assertions::assert_eq` [INFO] [stdout] --> src/drop_check/boks.rs:41:9 [INFO] [stdout] | [INFO] [stdout] 41 | use pretty_assertions::assert_eq; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `boks` [INFO] [stdout] --> src/drop_check/boks.rs:52:13 [INFO] [stdout] | [INFO] [stdout] 52 | let boks = Boks::ny(&mut y); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_boks` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `strlen` is never used [INFO] [stdout] --> src/dispatch_and_fat_pointers/main.rs:31:4 [INFO] [stdout] | [INFO] [stdout] 31 | fn strlen(s: impl AsRef) -> usize { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `strlen_dyn` is never used [INFO] [stdout] --> src/dispatch_and_fat_pointers/main.rs:35:4 [INFO] [stdout] | [INFO] [stdout] 35 | fn strlen_dyn(s: Box>) -> usize { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `bool_then` is never used [INFO] [stdout] --> src/dispatch_and_fat_pointers/main.rs:39:8 [INFO] [stdout] | [INFO] [stdout] 39 | pub fn bool_then(b: bool, f: impl FnOnce() -> T) -> Option { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `baz` is never used [INFO] [stdout] --> src/dispatch_and_fat_pointers/main.rs:49:8 [INFO] [stdout] | [INFO] [stdout] 49 | pub fn baz(s: &dyn HeiAsRef) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `slice_of_trait_object` is never used [INFO] [stdout] --> src/dispatch_and_fat_pointers/main.rs:55:8 [INFO] [stdout] | [INFO] [stdout] 55 | pub fn slice_of_trait_object(v: &[&dyn AsRef]) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/dispatch_and_fat_pointers/main.rs:61:8 [INFO] [stdout] | [INFO] [stdout] 61 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `core::str::::len` that must be used [INFO] [stdout] --> src/dispatch_and_fat_pointers/main.rs:52:5 [INFO] [stdout] | [INFO] [stdout] 52 | s.len(); [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 52 | let _ = s.len(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary allocation, use `&` instead [INFO] [stdout] --> src/dispatch_and_fat_pointers/main.rs:66:29 [INFO] [stdout] | [INFO] [stdout] 66 | slice_of_trait_object(&[Box::new("hello").as_ref()]) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_allocation)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Box::::from_raw` that must be used [INFO] [stdout] --> src/drop_check/boks.rs:10:18 [INFO] [stdout] | [INFO] [stdout] 10 | unsafe { Box::from_raw(self.p) }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box` [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 10 | unsafe { let _ = Box::from_raw(self.p); }; [INFO] [stdout] | +++++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/smart_pointers_and_interior_mutability/rc.rs:64:13 [INFO] [stdout] | [INFO] [stdout] 64 | drop(inner); [INFO] [stdout] | ^^^^^-----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&RcInner` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.33s [INFO] running `Command { std: "docker" "inspect" "2e4e3b5f424f58771ff05cff4ddae0f24d2394d622cf4b5db182afa7726e111f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2e4e3b5f424f58771ff05cff4ddae0f24d2394d622cf4b5db182afa7726e111f", kill_on_drop: false }` [INFO] [stdout] 2e4e3b5f424f58771ff05cff4ddae0f24d2394d622cf4b5db182afa7726e111f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+d3515155216e98c23440ea92c3f49c6a0d7101fc" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] dec69378da83dbcc7d8ccc9e908c12587c12d7bb69d3b3ce1aac3d112234a82f [INFO] running `Command { std: "docker" "start" "-a" "dec69378da83dbcc7d8ccc9e908c12587c12d7bb69d3b3ce1aac3d112234a82f", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `pretty_assertions::assert_eq` [INFO] [stderr] --> src/drop_check/boks.rs:41:9 [INFO] [stderr] | [INFO] [stderr] 41 | use pretty_assertions::assert_eq; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `boks` [INFO] [stderr] --> src/drop_check/boks.rs:52:13 [INFO] [stderr] | [INFO] [stderr] 52 | let boks = Boks::ny(&mut y); [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_boks` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function `strlen` is never used [INFO] [stderr] --> src/dispatch_and_fat_pointers/main.rs:31:4 [INFO] [stderr] | [INFO] [stderr] 31 | fn strlen(s: impl AsRef) -> usize { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function `strlen_dyn` is never used [INFO] [stderr] --> src/dispatch_and_fat_pointers/main.rs:35:4 [INFO] [stderr] | [INFO] [stderr] 35 | fn strlen_dyn(s: Box>) -> usize { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `bool_then` is never used [INFO] [stderr] --> src/dispatch_and_fat_pointers/main.rs:39:8 [INFO] [stderr] | [INFO] [stderr] 39 | pub fn bool_then(b: bool, f: impl FnOnce() -> T) -> Option { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `baz` is never used [INFO] [stderr] --> src/dispatch_and_fat_pointers/main.rs:49:8 [INFO] [stderr] | [INFO] [stderr] 49 | pub fn baz(s: &dyn HeiAsRef) { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function `slice_of_trait_object` is never used [INFO] [stderr] --> src/dispatch_and_fat_pointers/main.rs:55:8 [INFO] [stderr] | [INFO] [stderr] 55 | pub fn slice_of_trait_object(v: &[&dyn AsRef]) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `main` is never used [INFO] [stderr] --> src/dispatch_and_fat_pointers/main.rs:61:8 [INFO] [stderr] | [INFO] [stderr] 61 | pub fn main() { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused return value of `core::str::::len` that must be used [INFO] [stderr] --> src/dispatch_and_fat_pointers/main.rs:52:5 [INFO] [stderr] | [INFO] [stderr] 52 | s.len(); [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 52 | let _ = s.len(); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: unnecessary allocation, use `&` instead [INFO] [stderr] --> src/dispatch_and_fat_pointers/main.rs:66:29 [INFO] [stderr] | [INFO] [stderr] 66 | slice_of_trait_object(&[Box::new("hello").as_ref()]) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_allocation)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused return value of `Box::::from_raw` that must be used [INFO] [stderr] --> src/drop_check/boks.rs:10:18 [INFO] [stderr] | [INFO] [stderr] 10 | unsafe { Box::from_raw(self.p) }; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box` [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 10 | unsafe { let _ = Box::from_raw(self.p); }; [INFO] [stderr] | +++++++ + [INFO] [stderr] [INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stderr] --> src/smart_pointers_and_interior_mutability/rc.rs:64:13 [INFO] [stderr] | [INFO] [stderr] 64 | drop(inner); [INFO] [stderr] | ^^^^^-----^ [INFO] [stderr] | | [INFO] [stderr] | argument has type `&RcInner` [INFO] [stderr] | [INFO] [stderr] = note: use `let _ = ...` to ignore the expression or result [INFO] [stderr] = note: `#[warn(dropping_references)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `crust-of-rust` (bin "crust-of-rust" test) generated 12 warnings (run `cargo fix --bin "crust-of-rust" --tests` to apply 2 suggestions) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/crust_of_rust-c60ad90b43a33a59) [INFO] [stdout] [INFO] [stdout] running 29 tests [INFO] [stdout] test channels::panama::tests::closed_rx ... ok [INFO] [stdout] test declarative_macros::vecmac::tests::empty_vec ... ok [INFO] [stdout] test channels::panama::tests::ping_pong ... ok [INFO] [stdout] test declarative_macros::vecmac::tests::clone_2 ... ok [INFO] [stdout] test declarative_macros::vecmac::tests::double ... ok [INFO] [stdout] test declarative_macros::vecmac::tests::single ... ok [INFO] [stdout] test declarative_macros::vecmac::tests::trailing ... ok [INFO] [stdout] test drop_check::boks::tests::it_works ... ok [INFO] [stdout] test atomics_and_memory_ordering::atomics::tests::too_relaxed ... ok [INFO] [stdout] test channels::panama::tests::closed_tx ... ok [INFO] [stdout] test iterators::iterator::tests::both_ends ... ok [INFO] [stdout] test iterators::iterator::tests::empty ... ok [INFO] [stdout] test iterators::iterator::tests::empty_wide ... ok [INFO] [stdout] test iterators::iterator::tests::one ... ok [INFO] [stdout] test iterators::iterator::tests::two ... ok [INFO] [stdout] test iterators::iterator::tests::two_reverse ... ok [INFO] [stdout] test iterators::iterator::tests::two_wide ... ok [INFO] [stdout] test lifetime_annotations::strsplit::tests::tail ... ok [INFO] [stdout] test lifetime_annotations::strsplit::tests::test_until_char ... ok [INFO] [stdout] test lifetime_annotations::strsplit::tests::empty_tail ... ok [INFO] [stdout] test iterators::iterator::tests::two_wide_reverse ... ok [INFO] [stdout] test lifetime_annotations::strsplit::tests::it_works ... ok [INFO] [stdout] test lifetime_annotations::strsplit::tests::test_until_char_with_unicode ... ok [INFO] [stdout] test smart_pointers_and_interior_mutability::cell::tests::it_works ... ok [INFO] [stdout] test smart_pointers_and_interior_mutability::rc::tests::it_works ... ok [INFO] [stdout] test subtyping_and_variance::strtok::tests::it_works ... ok [INFO] [stdout] test smart_pointers_and_interior_mutability::refcell::tests::it_works ... ok [INFO] [stdout] test atomics_and_memory_ordering::atomics::tests::mutex_test ... FAILED [INFO] [stderr] error: test failed, to rerun pass `--bin crust-of-rust` [INFO] [stdout] test atomics_and_memory_ordering::atomics::tests::it_works ... ok [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- atomics_and_memory_ordering::atomics::tests::mutex_test stdout ---- [INFO] [stdout] thread 'atomics_and_memory_ordering::atomics::tests::mutex_test' panicked at 'assertion failed: `(left == right)` [INFO] [stdout] [INFO] [stdout] Diff < left / right > : [INFO] [stdout] <1 [INFO] [stdout] >2 [INFO] [stdout] [INFO] [stdout] ', src/atomics_and_memory_ordering/atomics.rs:112:9 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x558860096a21 - std::backtrace_rs::backtrace::libunwind::trace::h2703a10e9200794c [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5 [INFO] [stdout] 1: 0x558860096a21 - std::backtrace_rs::backtrace::trace_unsynchronized::h4844f7d488b44dc0 [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x558860096a21 - std::sys_common::backtrace::_print_fmt::hf45311442c372df0 [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/std/src/sys_common/backtrace.rs:65:5 [INFO] [stdout] 3: 0x558860096a21 - ::fmt::h51751bf0e7490aba [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/std/src/sys_common/backtrace.rs:44:22 [INFO] [stdout] 4: 0x5588600c0aac - core::fmt::rt::Argument::fmt::hd1fd9c2a99deb5d8 [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/core/src/fmt/rt.rs:138:9 [INFO] [stdout] 5: 0x5588600c0aac - core::fmt::write::hbfbb2d31c1f0855c [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/core/src/fmt/mod.rs:1094:21 [INFO] [stdout] 6: 0x558860093bee - std::io::Write::write_fmt::hbc06e15dd07a341d [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/std/src/io/mod.rs:1714:15 [INFO] [stdout] 7: 0x558860096835 - std::sys_common::backtrace::_print::hdbe3ddcbbe0168c0 [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/std/src/sys_common/backtrace.rs:47:5 [INFO] [stdout] 8: 0x558860096835 - std::sys_common::backtrace::print::hb26905a5b7786a7c [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/std/src/sys_common/backtrace.rs:34:9 [INFO] [stdout] 9: 0x558860098553 - std::panicking::default_hook::{{closure}}::h8ebb81b0f88d6f0c [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/std/src/panicking.rs:269:22 [INFO] [stdout] 10: 0x5588600981f0 - std::panicking::default_hook::h68ef778f73f0172f [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/std/src/panicking.rs:285:9 [INFO] [stdout] 11: 0x55886004d597 - as core::ops::function::Fn>::call::hae2e49ca62e027a7 [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/alloc/src/boxed.rs:2021:9 [INFO] [stdout] 12: 0x55886004d597 - test::test_main::{{closure}}::hfabcca8fcc567747 [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/test/src/lib.rs:135:21 [INFO] [stdout] 13: 0x558860098c4e - as core::ops::function::Fn>::call::h24d4a2aeda7029b9 [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/alloc/src/boxed.rs:2021:9 [INFO] [stdout] 14: 0x558860098c4e - std::panicking::rust_panic_with_hook::h802085966bb64488 [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/std/src/panicking.rs:709:13 [INFO] [stdout] 15: 0x5588600989d7 - std::panicking::begin_panic_handler::{{closure}}::h646997c92b8b8ce3 [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/std/src/panicking.rs:597:13 [INFO] [stdout] 16: 0x558860096e86 - std::sys_common::backtrace::__rust_end_short_backtrace::h00c2f9b1ae29e02d [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/std/src/sys_common/backtrace.rs:151:18 [INFO] [stdout] 17: 0x558860098722 - rust_begin_unwind [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/std/src/panicking.rs:593:5 [INFO] [stdout] 18: 0x55885ffe94a3 - core::panicking::panic_fmt::hcb3f95bd29fc9a6f [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/core/src/panicking.rs:67:14 [INFO] [stdout] 19: 0x55886000777d - crust_of_rust::atomics_and_memory_ordering::atomics::tests::mutex_test::h66af8828e7025476 [INFO] [stdout] at /opt/rustwide/workdir/src/atomics_and_memory_ordering/atomics.rs:112:9 [INFO] [stdout] 20: 0x5588600071d7 - crust_of_rust::atomics_and_memory_ordering::atomics::tests::mutex_test::{{closure}}::h1902b8e1fa491acd [INFO] [stdout] at /opt/rustwide/workdir/src/atomics_and_memory_ordering/atomics.rs:87:21 [INFO] [stdout] 21: 0x5588600023b5 - core::ops::function::FnOnce::call_once::h9d7210bfc3a9c394 [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 22: 0x55886005283f - core::ops::function::FnOnce::call_once::h0617ecab077fa701 [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 23: 0x55886005283f - test::__rust_begin_short_backtrace::h5a61b0d3b3858a9e [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/test/src/lib.rs:626:18 [INFO] [stdout] 24: 0x558860051872 - test::run_test_in_process::{{closure}}::h612e19f1fff74c0b [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/test/src/lib.rs:649:60 [INFO] [stdout] 25: 0x558860051872 - as core::ops::function::FnOnce<()>>::call_once::h9c274bf226b4b405 [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 26: 0x558860051872 - std::panicking::try::do_call::h2e1fe1d6dd44ae26 [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/std/src/panicking.rs:500:40 [INFO] [stdout] 27: 0x558860051872 - std::panicking::try::hd56cf97b42cd7225 [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/std/src/panicking.rs:464:19 [INFO] [stdout] 28: 0x558860051872 - std::panic::catch_unwind::h73b3fd42fc280662 [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/std/src/panic.rs:142:14 [INFO] [stdout] 29: 0x558860051872 - test::run_test_in_process::h89bc4bc707762a60 [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/test/src/lib.rs:649:27 [INFO] [stdout] 30: 0x558860051872 - test::run_test::{{closure}}::hbb9d716625919f12 [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/test/src/lib.rs:572:43 [INFO] [stdout] 31: 0x5588600186d4 - test::run_test::{{closure}}::h6b8e0276183b66a8 [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/test/src/lib.rs:600:41 [INFO] [stdout] 32: 0x5588600186d4 - std::sys_common::backtrace::__rust_begin_short_backtrace::hedd230a3e26fe7ae [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/std/src/sys_common/backtrace.rs:135:18 [INFO] [stdout] 33: 0x55886001e3ab - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h4db94156f406f673 [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/std/src/thread/mod.rs:529:17 [INFO] [stdout] 34: 0x55886001e3ab - as core::ops::function::FnOnce<()>>::call_once::hbd354b464352c928 [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 35: 0x55886001e3ab - std::panicking::try::do_call::ha2cf3b8f2d86484e [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/std/src/panicking.rs:500:40 [INFO] [stdout] 36: 0x55886001e3ab - std::panicking::try::h0f17c2aad7c9cec6 [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/std/src/panicking.rs:464:19 [INFO] [stdout] 37: 0x55886001e3ab - std::panic::catch_unwind::hf1265b3f74892fe9 [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/std/src/panic.rs:142:14 [INFO] [stdout] 38: 0x55886001e3ab - std::thread::Builder::spawn_unchecked_::{{closure}}::h34c179833b973108 [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/std/src/thread/mod.rs:528:30 [INFO] [stdout] 39: 0x55886001e3ab - core::ops::function::FnOnce::call_once{{vtable.shim}}::hfb7aff8ad36f3e68 [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 40: 0x55886009d255 - as core::ops::function::FnOnce>::call_once::h97566ec5ca724d12 [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/alloc/src/boxed.rs:2007:9 [INFO] [stdout] 41: 0x55886009d255 - as core::ops::function::FnOnce>::call_once::h8965e3547219fbf7 [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/alloc/src/boxed.rs:2007:9 [INFO] [stdout] 42: 0x55886009d255 - std::sys::unix::thread::Thread::new::thread_start::hfb921fb13d012ef9 [INFO] [stdout] at /rustc/d3515155216e98c23440ea92c3f49c6a0d7101fc/library/std/src/sys/unix/thread.rs:108:17 [INFO] [stdout] 43: 0x7f0af13fcb43 - [INFO] [stdout] 44: 0x7f0af148dbb4 - __clone [INFO] [stdout] 45: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] atomics_and_memory_ordering::atomics::tests::mutex_test [INFO] [stdout] [INFO] [stdout] test result: FAILED. 28 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.19s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "dec69378da83dbcc7d8ccc9e908c12587c12d7bb69d3b3ce1aac3d112234a82f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dec69378da83dbcc7d8ccc9e908c12587c12d7bb69d3b3ce1aac3d112234a82f", kill_on_drop: false }` [INFO] [stdout] dec69378da83dbcc7d8ccc9e908c12587c12d7bb69d3b3ce1aac3d112234a82f