[INFO] fetching crate gap-buffer 0.1.0...
[INFO] testing gap-buffer-0.1.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate gap-buffer 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate gap-buffer 0.1.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gap-buffer 0.1.0
[INFO] finished tweaking crates.io crate gap-buffer 0.1.0
[INFO] tweaked toml for crates.io crate gap-buffer 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", 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] 9d9747b3a4235e86c814a572f409ee744cd26c434fcd8ed82407184687242346
[INFO] running `Command { std: "docker" "start" "-a" "9d9747b3a4235e86c814a572f409ee744cd26c434fcd8ed82407184687242346", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d9747b3a4235e86c814a572f409ee744cd26c434fcd8ed82407184687242346", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d9747b3a4235e86c814a572f409ee744cd26c434fcd8ed82407184687242346", kill_on_drop: false }`
[INFO] [stdout] 9d9747b3a4235e86c814a572f409ee744cd26c434fcd8ed82407184687242346
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", 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] aa3549be57a798e846e08595971952d6b5cceb6e5bedc67ee85afbbe7889df5a
[INFO] running `Command { std: "docker" "start" "-a" "aa3549be57a798e846e08595971952d6b5cceb6e5bedc67ee85afbbe7889df5a", kill_on_drop: false }`
[INFO] [stderr]    Compiling gap-buffer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "aa3549be57a798e846e08595971952d6b5cceb6e5bedc67ee85afbbe7889df5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa3549be57a798e846e08595971952d6b5cceb6e5bedc67ee85afbbe7889df5a", kill_on_drop: false }`
[INFO] [stdout] aa3549be57a798e846e08595971952d6b5cceb6e5bedc67ee85afbbe7889df5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 46563b9aaacbc2d5d8a0d4bca8e3888a67e100ff6bd16d17c8d3706ef892e7b9
[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" "46563b9aaacbc2d5d8a0d4bca8e3888a67e100ff6bd16d17c8d3706ef892e7b9", kill_on_drop: false }`
[INFO] [stderr]    Compiling gap-buffer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `Command { std: "docker" "inspect" "46563b9aaacbc2d5d8a0d4bca8e3888a67e100ff6bd16d17c8d3706ef892e7b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46563b9aaacbc2d5d8a0d4bca8e3888a67e100ff6bd16d17c8d3706ef892e7b9", kill_on_drop: false }`
[INFO] [stdout] 46563b9aaacbc2d5d8a0d4bca8e3888a67e100ff6bd16d17c8d3706ef892e7b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] 4334f2bbde5b3ec36581e0965a87ca02bfb38cdbf40e447b2f54efaf5a1c6e38
[INFO] running `Command { std: "docker" "start" "-a" "4334f2bbde5b3ec36581e0965a87ca02bfb38cdbf40e447b2f54efaf5a1c6e38", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/gap_buffer-bda412ff935671ef
[INFO] [stdout] running 10 tests
[INFO] [stdout] test tests::insert_str_1 ... ok
[INFO] [stdout] test tests::insert_str_3 ... ok
[INFO] [stdout] test tests::remove_1 ... ok
[INFO] [stdout] test tests::remove_2 ... ok
[INFO] [stdout] test tests::remove_4 ... ok
[INFO] [stdout] test tests::remove_3 ... ok
[INFO] [stdout] test tests::insert_str_4 ... ok
[INFO] [stdout] test tests::insert_str_2 ... ok
[INFO] [stdout] test tests::insert_str_5 ... ok
[INFO] [stdout] test tests::remove_5 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests gap-buffer
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4334f2bbde5b3ec36581e0965a87ca02bfb38cdbf40e447b2f54efaf5a1c6e38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4334f2bbde5b3ec36581e0965a87ca02bfb38cdbf40e447b2f54efaf5a1c6e38", kill_on_drop: false }`
[INFO] [stdout] 4334f2bbde5b3ec36581e0965a87ca02bfb38cdbf40e447b2f54efaf5a1c6e38