[INFO] cloning repository https://github.com/rklaehn/rust-nursery [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rklaehn/rust-nursery" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frklaehn%2Frust-nursery", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frklaehn%2Frust-nursery'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 2d9cabeafe1b0bb90ccbf54d168bc0376e23c658 [INFO] checking rklaehn/rust-nursery against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frklaehn%2Frust-nursery" "/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/rklaehn/rust-nursery on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/rklaehn/rust-nursery [INFO] finished tweaking git repo https://github.com/rklaehn/rust-nursery [INFO] tweaked toml for git repo https://github.com/rklaehn/rust-nursery written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/rklaehn/rust-nursery 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... 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"/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 278cba89a042511d6072114d0c7711c64ece477b5a12de5d96cfa6f515510dc4 [INFO] running `Command { std: "docker" "start" "-a" "278cba89a042511d6072114d0c7711c64ece477b5a12de5d96cfa6f515510dc4", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Checking rand_core v0.4.2 [INFO] [stderr] Compiling libc v0.2.65 [INFO] [stderr] Compiling proc-macro2 v1.0.6 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling syn v1.0.8 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling getrandom v0.1.13 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling libm v0.1.4 [INFO] [stderr] Compiling serde v1.0.102 [INFO] [stderr] Compiling num-traits v0.2.8 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling num-complex v0.2.3 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Checking aho-corasick v0.7.6 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking ppv-lite86 v0.2.6 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] 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[stderr] Checking serde_json v1.0.41 [INFO] [stderr] Checking vec-collections v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Ord` is imported redundantly [INFO] [stdout] --> src/merge_state.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::cmp::Ord; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Ord` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Default` is imported redundantly [INFO] [stdout] --> src/merge_state.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::default::Default; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Default` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `VecSet` [INFO] [stdout] --> src/total_vec_set.rs:1:13 [INFO] [stdout] | [INFO] [stdout] 1 | use crate::{VecSet, VecSet2}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `UnsafeSliceMergeState` [INFO] [stdout] --> src/vec_set.rs:6:30 [INFO] [stdout] | [INFO] [stdout] 6 | UnsafeInPlaceMergeState, UnsafeSliceMergeState, VecMergeState, SmallVecInPlaceMergeState, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead [INFO] [stdout] --> src/flip_buffer/small_vec_builder.rs:177:67 [INFO] [stdout] | [INFO] [stdout] 177 | let v = std::mem::replace(&mut self.v, unsafe { std::mem::uninitialized() }); [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `merge` is never used [INFO] [stdout] --> src/merge_state.rs:70:12 [INFO] [stdout] | [INFO] [stdout] 61 | impl<'a, A: Array, B: Array> SmallVecInPlaceMergeState { [INFO] [stdout] | ------------------------------------------------------------ associated function in this implementation [INFO] [stdout] ... [INFO] [stdout] 70 | pub fn merge>(a: &mut SmallVec, b: SmallVec, o: O) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `merge` is never used [INFO] [stdout] --> src/merge_state.rs:344:12 [INFO] [stdout] | [INFO] [stdout] 320 | impl<'a, A, B, Arr: Array> SmallVecMergeState<'a, A, B, Arr> { [INFO] [stdout] | ------------------------------------------------------------ associated function in this implementation [INFO] [stdout] ... [INFO] [stdout] 344 | pub fn merge>(a: &'a [A], b: &'a [B], o: O) -> SmallVec { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `merge` is never used [INFO] [stdout] --> src/merge_state.rs:476:12 [INFO] [stdout] | [INFO] [stdout] 475 | impl UnsafeSliceMergeState { [INFO] [stdout] | -------------------------------- associated function in this implementation [INFO] [stdout] 476 | pub fn merge>( [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `dedup` is never used [INFO] [stdout] --> src/dedup.rs:28:4 [INFO] [stdout] | [INFO] [stdout] 28 | fn dedup(d: &mut [T], keep: Keep) -> usize { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `single` and `filter_map_values` are never used [INFO] [stdout] --> src/radix_tree.rs:87:8 [INFO] [stdout] | [INFO] [stdout] 58 | impl TagTree { [INFO] [stdout] | ----------------------------- associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 87 | fn single(key: Vec, value: V) -> Self { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 96 | fn filter_map_values(self, f: &impl Fn(V) -> Option) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `inner_join_with` is never used [INFO] [stdout] --> src/radix_tree.rs:142:8 [INFO] [stdout] | [INFO] [stdout] 107 | impl TagTree { [INFO] [stdout] | -------------------------------------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 142 | fn inner_join_with(&self, that: &Self, f: &impl Fn(&V, &V) -> Option) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `min` and `max` are never used [INFO] [stdout] --> src/radix_tree.rs:164:8 [INFO] [stdout] | [INFO] [stdout] 163 | impl TagTree { [INFO] [stdout] | --------------------------------------------------------- methods in this implementation [INFO] [stdout] 164 | fn min(&self, that: &Self) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 169 | fn max(&self, that: &Self) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `from_range_bounds` is never used [INFO] [stdout] --> src/range_set.rs:175:8 [INFO] [stdout] | [INFO] [stdout] 174 | impl RangeSet { [INFO] [stdout] | -------------------------------- associated function in this implementation [INFO] [stdout] 175 | fn from_range_bounds>(r: R) -> std::result::Result { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the type `SmallVec` does not permit being left uninitialized [INFO] [stdout] --> src/flip_buffer/small_vec_builder.rs:177:57 [INFO] [stdout] | [INFO] [stdout] 177 | let v = std::mem::replace(&mut self.v, unsafe { std::mem::uninitialized() }); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this code causes undefined behavior when executed [INFO] [stdout] | help: use `MaybeUninit` instead, and only call `assume_init` after initialization is done [INFO] [stdout] | [INFO] [stdout] = note: integers must be initialized [INFO] [stdout] = note: `#[warn(invalid_value)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 14 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `#[macro_use]` import [INFO] [stdout] --> src/lib.rs:2:1 [INFO] [stdout] | [INFO] [stdout] 2 | #[macro_use] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Ord` is imported redundantly [INFO] [stdout] --> src/merge_state.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::cmp::Ord; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Ord` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Default` is imported redundantly [INFO] [stdout] --> src/merge_state.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::default::Default; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Default` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `VecSet` [INFO] [stdout] --> src/total_vec_set.rs:1:13 [INFO] [stdout] | [INFO] [stdout] 1 | use crate::{VecSet, VecSet2}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `BTreeSet` is imported redundantly [INFO] [stdout] --> src/vec_set.rs:487:9 [INFO] [stdout] | [INFO] [stdout] 483 | use super::*; [INFO] [stdout] | -------- the item `BTreeSet` is already imported here [INFO] [stdout] ... [INFO] [stdout] 487 | use std::collections::BTreeSet; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `BTreeSet` is imported redundantly [INFO] [stdout] --> src/vec_set.rs:628:9 [INFO] [stdout] | [INFO] [stdout] 624 | use super::*; [INFO] [stdout] | -------- the item `BTreeSet` is already imported here [INFO] [stdout] ... [INFO] [stdout] 628 | use std::collections::BTreeSet; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `BTreeMap` is imported redundantly [INFO] [stdout] --> src/vec_map.rs:362:9 [INFO] [stdout] | [INFO] [stdout] 359 | use super::*; [INFO] [stdout] | -------- the item `BTreeMap` is already imported here [INFO] [stdout] ... [INFO] [stdout] 362 | use std::collections::BTreeMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead [INFO] [stdout] --> src/flip_buffer/small_vec_builder.rs:177:67 [INFO] [stdout] | [INFO] [stdout] 177 | let v = std::mem::replace(&mut self.v, unsafe { std::mem::uninitialized() }); [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `merge` is never used [INFO] [stdout] --> src/merge_state.rs:70:12 [INFO] [stdout] | [INFO] [stdout] 61 | impl<'a, A: Array, B: Array> SmallVecInPlaceMergeState { [INFO] [stdout] | ------------------------------------------------------------ associated function in this implementation [INFO] [stdout] ... [INFO] [stdout] 70 | pub fn merge>(a: &mut SmallVec, b: SmallVec, o: O) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `merge` is never used [INFO] [stdout] --> src/merge_state.rs:344:12 [INFO] [stdout] | [INFO] [stdout] 320 | impl<'a, A, B, Arr: Array> SmallVecMergeState<'a, A, B, Arr> { [INFO] [stdout] | ------------------------------------------------------------ associated function in this implementation [INFO] [stdout] ... [INFO] [stdout] 344 | pub fn merge>(a: &'a [A], b: &'a [B], o: O) -> SmallVec { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `print_on_failure_unary` is never used [INFO] [stdout] --> src/total_vec_set.rs:285:8 [INFO] [stdout] | [INFO] [stdout] 285 | fn print_on_failure_unary(x: E, expected: R, actual: R) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `dedup` is never used [INFO] [stdout] --> src/dedup.rs:28:4 [INFO] [stdout] | [INFO] [stdout] 28 | fn dedup(d: &mut [T], keep: Keep) -> usize { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `filter_map_values` is never used [INFO] [stdout] --> src/radix_tree.rs:96:8 [INFO] [stdout] | [INFO] [stdout] 58 | impl TagTree { [INFO] [stdout] | ----------------------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 96 | fn filter_map_values(self, f: &impl Fn(V) -> Option) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `max` is never used [INFO] [stdout] --> src/radix_tree.rs:169:8 [INFO] [stdout] | [INFO] [stdout] 163 | impl TagTree { [INFO] [stdout] | --------------------------------------------------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 169 | fn max(&self, that: &Self) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the type `smallvec::SmallVec` does not permit being left uninitialized [INFO] [stdout] --> src/flip_buffer/small_vec_builder.rs:177:57 [INFO] [stdout] | [INFO] [stdout] 177 | let v = std::mem::replace(&mut self.v, unsafe { std::mem::uninitialized() }); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this code causes undefined behavior when executed [INFO] [stdout] | help: use `MaybeUninit` instead, and only call `assume_init` after initialization is done [INFO] [stdout] | [INFO] [stdout] = note: integers must be initialized [INFO] [stdout] = note: `#[warn(invalid_value)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 15 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 27.82s [INFO] running `Command { std: "docker" "inspect" "278cba89a042511d6072114d0c7711c64ece477b5a12de5d96cfa6f515510dc4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "278cba89a042511d6072114d0c7711c64ece477b5a12de5d96cfa6f515510dc4", kill_on_drop: false }` [INFO] [stdout] 278cba89a042511d6072114d0c7711c64ece477b5a12de5d96cfa6f515510dc4