[INFO] fetching crate sliding_window 0.1.2...
[INFO] testing sliding_window-0.1.2 against 1.49.0 for beta-1.50-1
[INFO] extracting crate sliding_window 0.1.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate sliding_window 0.1.2 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sliding_window 0.1.2
[INFO] finished tweaking crates.io crate sliding_window 0.1.2
[INFO] tweaked toml for crates.io crate sliding_window 0.1.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 28d54c36d28b37d09c097d576051148840a88379bc12d6fdcdf3825200234fff
[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" "28d54c36d28b37d09c097d576051148840a88379bc12d6fdcdf3825200234fff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "28d54c36d28b37d09c097d576051148840a88379bc12d6fdcdf3825200234fff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28d54c36d28b37d09c097d576051148840a88379bc12d6fdcdf3825200234fff", kill_on_drop: false }`
[INFO] [stdout] 28d54c36d28b37d09c097d576051148840a88379bc12d6fdcdf3825200234fff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab7ebfeba909d06158cee93cb5e23225f4f671368dbd1062d608330fe0a591f2
[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" "ab7ebfeba909d06158cee93cb5e23225f4f671368dbd1062d608330fe0a591f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling sliding_window v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "ab7ebfeba909d06158cee93cb5e23225f4f671368dbd1062d608330fe0a591f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab7ebfeba909d06158cee93cb5e23225f4f671368dbd1062d608330fe0a591f2", kill_on_drop: false }`
[INFO] [stdout] ab7ebfeba909d06158cee93cb5e23225f4f671368dbd1062d608330fe0a591f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10d3ac93d268d510b1b71a1cdd34a80de6c18db8ee48cb2267d7bf24eedc3da5
[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" "10d3ac93d268d510b1b71a1cdd34a80de6c18db8ee48cb2267d7bf24eedc3da5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling sliding_window v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.37s
[INFO] running `Command { std: "docker" "inspect" "10d3ac93d268d510b1b71a1cdd34a80de6c18db8ee48cb2267d7bf24eedc3da5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10d3ac93d268d510b1b71a1cdd34a80de6c18db8ee48cb2267d7bf24eedc3da5", kill_on_drop: false }`
[INFO] [stdout] 10d3ac93d268d510b1b71a1cdd34a80de6c18db8ee48cb2267d7bf24eedc3da5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2d8a8cd45e777bb83146c11548d7a9675b262dbc8d8ed037a93cdc89c95a07ad
[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" "2d8a8cd45e777bb83146c11548d7a9675b262dbc8d8ed037a93cdc89c95a07ad", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.41s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sliding_window-cf38bab376a8ec23
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test test::basics ... ok
[INFO] [stdout] test test::iter ... ok
[INFO] [stdout] test test::unordered_iter ... ok
[INFO] [stdout] test wrapping::test::sanity_check ... ok
[INFO] [stdout] test wrapping::test::sanity_check_increment ... ok
[INFO] [stdout] test test::index_to_uninited ... 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_window
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 7) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2d8a8cd45e777bb83146c11548d7a9675b262dbc8d8ed037a93cdc89c95a07ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d8a8cd45e777bb83146c11548d7a9675b262dbc8d8ed037a93cdc89c95a07ad", kill_on_drop: false }`
[INFO] [stdout] 2d8a8cd45e777bb83146c11548d7a9675b262dbc8d8ed037a93cdc89c95a07ad