[INFO] fetching crate sliding_windows 3.0.0...
[INFO] testing sliding_windows-3.0.0 against 1.44.0 for beta-1.45-1
[INFO] extracting crate sliding_windows 3.0.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate sliding_windows 3.0.0 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-9/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b2eb63792ce138737e407123ae47807c1921b9c3b73a8ef9fc3fbe7798ba57e1
[INFO] running `"docker" "start" "-a" "b2eb63792ce138737e407123ae47807c1921b9c3b73a8ef9fc3fbe7798ba57e1"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling sliding_windows v3.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary `unsafe` block
[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: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `"docker" "inspect" "b2eb63792ce138737e407123ae47807c1921b9c3b73a8ef9fc3fbe7798ba57e1"`
[INFO] running `"docker" "rm" "-f" "b2eb63792ce138737e407123ae47807c1921b9c3b73a8ef9fc3fbe7798ba57e1"`
[INFO] [stdout] b2eb63792ce138737e407123ae47807c1921b9c3b73a8ef9fc3fbe7798ba57e1
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 916d03a69716adbd4c739c30ee43e8b46caef87042ea3f4421d56057d6dbb4c7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "916d03a69716adbd4c739c30ee43e8b46caef87042ea3f4421d56057d6dbb4c7"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling sliding_windows v3.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary `unsafe` block
[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: 1 warning emitted
[INFO] [stderr] 
[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: unnecessary `unsafe` block
[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: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `"docker" "inspect" "916d03a69716adbd4c739c30ee43e8b46caef87042ea3f4421d56057d6dbb4c7"`
[INFO] running `"docker" "rm" "-f" "916d03a69716adbd4c739c30ee43e8b46caef87042ea3f4421d56057d6dbb4c7"`
[INFO] [stdout] 916d03a69716adbd4c739c30ee43e8b46caef87042ea3f4421d56057d6dbb4c7
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] da5f20102a2b42bca7fac87c93de64a7c96eb4e7030dd13fc703cdabb3a36175
[INFO] running `"docker" "start" "-a" "da5f20102a2b42bca7fac87c93de64a7c96eb4e7030dd13fc703cdabb3a36175"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unnecessary `unsafe` block
[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: 1 warning emitted
[INFO] [stderr] 
[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: unnecessary `unsafe` block
[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: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sliding_windows-0070caad8638f56e
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::sliding_windows_6 ... ok
[INFO] [stdout] test tests::sliding_windows_1 ... ok
[INFO] [stdout] test tests::sliding_windows_2 ... ok
[INFO] [stdout] test tests::sliding_windows_4 ... ok
[INFO] [stdout] test tests::sliding_windows_5 ... ok
[INFO] [stdout] test tests::sliding_windows_3 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sliding_windows
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[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] test src/lib.rs -  (line 20) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "da5f20102a2b42bca7fac87c93de64a7c96eb4e7030dd13fc703cdabb3a36175"`
[INFO] running `"docker" "rm" "-f" "da5f20102a2b42bca7fac87c93de64a7c96eb4e7030dd13fc703cdabb3a36175"`
[INFO] [stdout] da5f20102a2b42bca7fac87c93de64a7c96eb4e7030dd13fc703cdabb3a36175