[INFO] fetching crate sliding_windows 3.0.0...
[INFO] testing sliding_windows-3.0.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate sliding_windows 3.0.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate sliding_windows 3.0.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sliding_windows 3.0.0
[INFO] finished tweaking crates.io crate sliding_windows 3.0.0
[INFO] tweaked toml for crates.io crate sliding_windows 3.0.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d7808fbd3ddfd836f11ed103751cad943ae9d4417a00312ce12e73b5dfbd0e36
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d7808fbd3ddfd836f11ed103751cad943ae9d4417a00312ce12e73b5dfbd0e36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d7808fbd3ddfd836f11ed103751cad943ae9d4417a00312ce12e73b5dfbd0e36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7808fbd3ddfd836f11ed103751cad943ae9d4417a00312ce12e73b5dfbd0e36", kill_on_drop: false }`
[INFO] [stdout] d7808fbd3ddfd836f11ed103751cad943ae9d4417a00312ce12e73b5dfbd0e36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0275f9a623b7c6b5d30e783ec85a9ed4b436fec2bc24e4a0ff42d3f77828f562
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0275f9a623b7c6b5d30e783ec85a9ed4b436fec2bc24e4a0ff42d3f77828f562", kill_on_drop: false }`
[INFO] [stderr]    Compiling sliding_windows v3.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/sliding_windows.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |         unsafe {
[INFO] [stdout]    |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `Command { std: "docker" "inspect" "0275f9a623b7c6b5d30e783ec85a9ed4b436fec2bc24e4a0ff42d3f77828f562", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0275f9a623b7c6b5d30e783ec85a9ed4b436fec2bc24e4a0ff42d3f77828f562", kill_on_drop: false }`
[INFO] [stdout] 0275f9a623b7c6b5d30e783ec85a9ed4b436fec2bc24e4a0ff42d3f77828f562
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4dc2e4144cef40d4a7617932bd5fb53bd28daab649fe467de0ac57333c027344
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4dc2e4144cef40d4a7617932bd5fb53bd28daab649fe467de0ac57333c027344", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/sliding_windows.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |         unsafe {
[INFO] [stdout]    |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling sliding_windows v3.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/tests.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let mut element_1 = iter_mut.next().unwrap();
[INFO] [stdout]    |             ----^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/sliding_windows.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |         unsafe {
[INFO] [stdout]    |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.24s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/sliding_windows-fceb094df6219d49)
[INFO] running `Command { std: "docker" "inspect" "4dc2e4144cef40d4a7617932bd5fb53bd28daab649fe467de0ac57333c027344", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dc2e4144cef40d4a7617932bd5fb53bd28daab649fe467de0ac57333c027344", kill_on_drop: false }`
[INFO] [stdout] 4dc2e4144cef40d4a7617932bd5fb53bd28daab649fe467de0ac57333c027344
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3d43f8bddab6b9d41b3182f8c1ee0ff4bbb2ed896ece618446e099b4b63a49b2
[INFO] running `Command { std: "docker" "start" "-a" "3d43f8bddab6b9d41b3182f8c1ee0ff4bbb2ed896ece618446e099b4b63a49b2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stdout] running 6 tests
[INFO] [stderr]   --> src/sliding_windows.rs:94:9
[INFO] [stderr]    |
[INFO] [stderr] 94 |         unsafe {
[INFO] [stderr]    |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `sliding_windows` (lib) generated 1 warning
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/tests.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 |         let mut element_1 = iter_mut.next().unwrap();
[INFO] [stderr]    |             ----^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `sliding_windows` (lib test) generated 2 warnings (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.14s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/sliding_windows-fceb094df6219d49)
[INFO] [stdout] test tests::sliding_windows_5 ... ok
[INFO] [stdout] test tests::sliding_windows_1 ... ok
[INFO] [stdout] test tests::sliding_windows_2 ... ok
[INFO] [stdout] test tests::sliding_windows_6 ... ok
[INFO] [stdout] test tests::sliding_windows_4 ... ok
[INFO] [stdout] test tests::sliding_windows_3 - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sliding_windows
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - (line 20) ... ok
[INFO] [stdout] test src/lib.rs - (line 62) ... ok
[INFO] [stdout] test src/sliding_windows.rs - sliding_windows::Window (line 106) ... ok
[INFO] [stdout] test src/lib.rs - (line 37) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.58s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3d43f8bddab6b9d41b3182f8c1ee0ff4bbb2ed896ece618446e099b4b63a49b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d43f8bddab6b9d41b3182f8c1ee0ff4bbb2ed896ece618446e099b4b63a49b2", kill_on_drop: false }`
[INFO] [stdout] 3d43f8bddab6b9d41b3182f8c1ee0ff4bbb2ed896ece618446e099b4b63a49b2