[INFO] cloning repository https://github.com/Posich/sorting [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Posich/sorting" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPosich%2Fsorting", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPosich%2Fsorting'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 132d19d25b981d5253a3e0aa9d864e8cc214aa30 [INFO] checking Posich/sorting against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPosich%2Fsorting" "/workspace/builds/worker-62/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-62/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Posich/sorting on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Posich/sorting [INFO] finished tweaking git repo https://github.com/Posich/sorting [INFO] tweaked toml for git repo https://github.com/Posich/sorting written to /workspace/builds/worker-62/source/Cargo.toml [INFO] crate git repo https://github.com/Posich/sorting already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "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-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 078ca5adc9a49f1ca93764474e6f61fdb5d911db8b981f40e4e6f1bb81d79775 [INFO] running `Command { std: "docker" "start" "-a" "078ca5adc9a49f1ca93764474e6f61fdb5d911db8b981f40e4e6f1bb81d79775", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "078ca5adc9a49f1ca93764474e6f61fdb5d911db8b981f40e4e6f1bb81d79775", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "078ca5adc9a49f1ca93764474e6f61fdb5d911db8b981f40e4e6f1bb81d79775", kill_on_drop: false }` [INFO] [stdout] 078ca5adc9a49f1ca93764474e6f61fdb5d911db8b981f40e4e6f1bb81d79775 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8149958bdf531932ab7ba23a8c007d215a1cef60e5d6a47816da4cdb4efe40ca [INFO] running `Command { std: "docker" "start" "-a" "8149958bdf531932ab7ba23a8c007d215a1cef60e5d6a47816da4cdb4efe40ca", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Checking rand_core v0.4.0 [INFO] [stderr] Compiling libc v0.2.50 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking rand_jitter v0.1.3 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking sorting v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/heap_sort.rs:169:13 [INFO] [stdout] | [INFO] [stdout] 169 | &mut self.build_rec(*val); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [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] 169 | let _ = &mut self.build_rec(*val); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/heap_sort.rs:174:9 [INFO] [stdout] | [INFO] [stdout] 174 | &mut self.values.push_back(elem.value); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 174 | let _ = &mut self.values.push_back(elem.value); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/heap_sort.rs:182:13 [INFO] [stdout] | [INFO] [stdout] 182 | &mut self.build_rec(*val); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 182 | let _ = &mut self.build_rec(*val); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/heap_sort.rs:169:13 [INFO] [stdout] | [INFO] [stdout] 169 | &mut self.build_rec(*val); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [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] 169 | let _ = &mut self.build_rec(*val); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/heap_sort.rs:174:9 [INFO] [stdout] | [INFO] [stdout] 174 | &mut self.values.push_back(elem.value); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 174 | let _ = &mut self.values.push_back(elem.value); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/heap_sort.rs:182:13 [INFO] [stdout] | [INFO] [stdout] 182 | &mut self.build_rec(*val); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 182 | let _ = &mut self.build_rec(*val); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:77:59 [INFO] [stdout] | [INFO] [stdout] 77 | let mut it = Box::new(col.clone().into_iter()) as Box>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:77:59 [INFO] [stdout] | [INFO] [stdout] 77 | let mut it = Box::new(col.clone().into_iter()) as Box>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `IntoIterator` [INFO] [stdout] --> src/main.rs:8:27 [INFO] [stdout] | [INFO] [stdout] 8 | use std::iter::{Iterator, IntoIterator}; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `IntoIterator` [INFO] [stdout] --> src/main.rs:8:27 [INFO] [stdout] | [INFO] [stdout] 8 | use std::iter::{Iterator, IntoIterator}; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [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] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 26.61s [INFO] running `Command { std: "docker" "inspect" "8149958bdf531932ab7ba23a8c007d215a1cef60e5d6a47816da4cdb4efe40ca", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8149958bdf531932ab7ba23a8c007d215a1cef60e5d6a47816da4cdb4efe40ca", kill_on_drop: false }` [INFO] [stdout] 8149958bdf531932ab7ba23a8c007d215a1cef60e5d6a47816da4cdb4efe40ca