[INFO] cloning repository https://github.com/startdusk/crust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/startdusk/crust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstartdusk%2Fcrust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstartdusk%2Fcrust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4b6fbd77399f1cdf18fb0369fb72ada36af3bbde [INFO] checking startdusk/crust against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstartdusk%2Fcrust" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/startdusk/crust on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/startdusk/crust [INFO] finished tweaking git repo https://github.com/startdusk/crust [INFO] tweaked toml for git repo https://github.com/startdusk/crust written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/startdusk/crust 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b9b7415d66d1e27b7a547ee9bd04eafe965c047e59e5e0bbef75cc4e74579599 [INFO] running `Command { std: "docker" "start" "-a" "b9b7415d66d1e27b7a547ee9bd04eafe965c047e59e5e0bbef75cc4e74579599", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b9b7415d66d1e27b7a547ee9bd04eafe965c047e59e5e0bbef75cc4e74579599", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b9b7415d66d1e27b7a547ee9bd04eafe965c047e59e5e0bbef75cc4e74579599", kill_on_drop: false }` [INFO] [stdout] b9b7415d66d1e27b7a547ee9bd04eafe965c047e59e5e0bbef75cc4e74579599 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ef2b64a36caac7d72e9f2c9640c05eb79acfadf0db874f63de5684fcc1445235 [INFO] running `Command { std: "docker" "start" "-a" "ef2b64a36caac7d72e9f2c9640c05eb79acfadf0db874f63de5684fcc1445235", kill_on_drop: false }` [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] [stderr] Compiling libc v0.2.138 [INFO] [stderr] Checking boks v0.1.0 (/opt/rustwide/workdir/boks) [INFO] [stderr] Checking build-and-ffi v0.1.0 (/opt/rustwide/workdir/build-and-ffi) [INFO] [stderr] Checking eksempel v0.1.0 (/opt/rustwide/workdir/eksempel) [INFO] [stderr] Checking strtok v0.1.0 (/opt/rustwide/workdir/strtok) [INFO] [stderr] Checking lifetime_annotations v0.1.0 (/opt/rustwide/workdir/lifetime_annotations) [INFO] [stderr] Checking call-me v0.1.0 (/opt/rustwide/workdir/call-me) [INFO] [stderr] Checking channels v0.1.0 (/opt/rustwide/workdir/channels) [INFO] [stderr] Checking smart_pointers_and_interior_mutability v0.1.0 (/opt/rustwide/workdir/smart_pointers_and_interior_mutability) [INFO] [stderr] Checking iterators v0.1.0 (/opt/rustwide/workdir/iterators) [INFO] [stderr] Checking declarative_macros v0.1.0 (/opt/rustwide/workdir/declarative_macros) [INFO] [stderr] Checking patience v0.1.0 (/opt/rustwide/workdir/patience) [INFO] [stderr] Checking atomics v0.1.0 (/opt/rustwide/workdir/atomics) [INFO] [stdout] warning: trait `MaxValue` is never used [INFO] [stdout] --> declarative_macros/src/lib.rs:105:7 [INFO] [stdout] | [INFO] [stdout] 105 | trait MaxValue { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `z` [INFO] [stdout] --> atomics/src/main.rs:118:9 [INFO] [stdout] | [INFO] [stdout] 118 | let z = z.load(Ordering::SeqCst); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> smart_pointers_and_interior_mutability/src/cell.rs:14:12 [INFO] [stdout] | [INFO] [stdout] 13 | impl Cell { [INFO] [stdout] | --------------- associated function in this implementation [INFO] [stdout] 14 | pub fn new(value: T) -> Self { [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] --> smart_pointers_and_interior_mutability/src/rc.rs:20:12 [INFO] [stdout] | [INFO] [stdout] 19 | impl Rc { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 20 | pub fn new(v: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Shared` and `Exclusive` are never constructed [INFO] [stdout] --> smart_pointers_and_interior_mutability/src/refcell.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 8 | enum RefState { [INFO] [stdout] | -------- variants in this enum [INFO] [stdout] 9 | Unshared, [INFO] [stdout] 10 | Shared(usize), [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 11 | Exclusive, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `RefState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `borrow`, and `borrow_mut` are never used [INFO] [stdout] --> smart_pointers_and_interior_mutability/src/refcell.rs:23:12 [INFO] [stdout] | [INFO] [stdout] 22 | impl RefCell { [INFO] [stdout] | ------------------ associated items in this implementation [INFO] [stdout] 23 | pub fn new(value: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 30 | pub fn borrow(&mut self) -> Option> { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 46 | pub fn borrow_mut(&mut self) -> Option> { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking sharing-is-caring v0.1.0 (/opt/rustwide/workdir/sharing-is-caring) [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> smart_pointers_and_interior_mutability/src/rc.rs:59:13 [INFO] [stdout] | [INFO] [stdout] 59 | drop(inner); [INFO] [stdout] | ^^^^^-----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&RcInner` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 59 - drop(inner); [INFO] [stdout] 59 + let _ = inner; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::Cell` [INFO] [stdout] --> smart_pointers_and_interior_mutability/src/cell.rs:38:9 [INFO] [stdout] | [INFO] [stdout] 38 | use super::Cell; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::sync::Arc` [INFO] [stdout] --> smart_pointers_and_interior_mutability/src/cell.rs:39:9 [INFO] [stdout] | [INFO] [stdout] 39 | use std::sync::Arc; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::thread` [INFO] [stdout] --> smart_pointers_and_interior_mutability/src/cell.rs:40:9 [INFO] [stdout] | [INFO] [stdout] 40 | use std::thread; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> boks/src/main.rs:60:9 [INFO] [stdout] | [INFO] [stdout] 60 | let b = Boks::ny(Oisann(&mut z)); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> boks/src/main.rs:60:9 [INFO] [stdout] | [INFO] [stdout] 60 | let b = Boks::ny(Oisann(&mut z)); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Box::::from_raw` that must be used [INFO] [stdout] --> boks/src/main.rs:17:18 [INFO] [stdout] | [INFO] [stdout] 17 | 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] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 17 | unsafe { let _ = Box::from_raw(self.p); }; [INFO] [stdout] | +++++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Box::::from_raw` that must be used [INFO] [stdout] --> boks/src/main.rs:17:18 [INFO] [stdout] | [INFO] [stdout] 17 | 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] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 17 | unsafe { let _ = Box::from_raw(self.p); }; [INFO] [stdout] | +++++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> smart_pointers_and_interior_mutability/src/cell.rs:14:12 [INFO] [stdout] | [INFO] [stdout] 13 | impl Cell { [INFO] [stdout] | --------------- associated function in this implementation [INFO] [stdout] 14 | pub fn new(value: T) -> Self { [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] --> smart_pointers_and_interior_mutability/src/rc.rs:20:12 [INFO] [stdout] | [INFO] [stdout] 19 | impl Rc { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 20 | pub fn new(v: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Shared` and `Exclusive` are never constructed [INFO] [stdout] --> smart_pointers_and_interior_mutability/src/refcell.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 8 | enum RefState { [INFO] [stdout] | -------- variants in this enum [INFO] [stdout] 9 | Unshared, [INFO] [stdout] 10 | Shared(usize), [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 11 | Exclusive, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `RefState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> sharing-is-caring/src/main.rs:48:9 [INFO] [stdout] | [INFO] [stdout] 48 | let y = x.clone(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `borrow`, and `borrow_mut` are never used [INFO] [stdout] --> smart_pointers_and_interior_mutability/src/refcell.rs:23:12 [INFO] [stdout] | [INFO] [stdout] 22 | impl RefCell { [INFO] [stdout] | ------------------ associated items in this implementation [INFO] [stdout] 23 | pub fn new(value: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 30 | pub fn borrow(&mut self) -> Option> { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 46 | pub fn borrow_mut(&mut self) -> Option> { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `r1` [INFO] [stdout] --> atomics/src/main.rs:87:9 [INFO] [stdout] | [INFO] [stdout] 87 | let r1 = t1.join().unwrap(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_r1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `r2` [INFO] [stdout] --> atomics/src/main.rs:88:9 [INFO] [stdout] | [INFO] [stdout] 88 | let r2 = t2.join().unwrap(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_r2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `MaxValue` is never used [INFO] [stdout] --> declarative_macros/src/lib.rs:105:7 [INFO] [stdout] | [INFO] [stdout] 105 | trait MaxValue { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `z` [INFO] [stdout] --> atomics/src/main.rs:118:9 [INFO] [stdout] | [INFO] [stdout] 118 | let z = z.load(Ordering::SeqCst); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> smart_pointers_and_interior_mutability/src/rc.rs:59:13 [INFO] [stdout] | [INFO] [stdout] 59 | drop(inner); [INFO] [stdout] | ^^^^^-----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&RcInner` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 59 - drop(inner); [INFO] [stdout] 59 + let _ = inner; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> sharing-is-caring/src/main.rs:48:9 [INFO] [stdout] | [INFO] [stdout] 48 | let y = x.clone(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking getrandom v0.2.8 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking sorting_algorithms v0.1.0 (/opt/rustwide/workdir/sorting_algorithms) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.75s [INFO] running `Command { std: "docker" "inspect" "ef2b64a36caac7d72e9f2c9640c05eb79acfadf0db874f63de5684fcc1445235", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ef2b64a36caac7d72e9f2c9640c05eb79acfadf0db874f63de5684fcc1445235", kill_on_drop: false }` [INFO] [stdout] ef2b64a36caac7d72e9f2c9640c05eb79acfadf0db874f63de5684fcc1445235