[INFO] fetching crate gap-buffer 0.1.0...
[INFO] testing gap-buffer-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate gap-buffer 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate gap-buffer 0.1.0 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 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-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bd75fc291ebbd59afc05921407b4f57e1a5b30be873858c57fa9982e384d7313
[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" "bd75fc291ebbd59afc05921407b4f57e1a5b30be873858c57fa9982e384d7313", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd75fc291ebbd59afc05921407b4f57e1a5b30be873858c57fa9982e384d7313", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd75fc291ebbd59afc05921407b4f57e1a5b30be873858c57fa9982e384d7313", kill_on_drop: false }`
[INFO] [stdout] bd75fc291ebbd59afc05921407b4f57e1a5b30be873858c57fa9982e384d7313
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3122686c3c8712441aa696db3805618d7924a91cd0fa00146cdab927dec90dc1
[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" "3122686c3c8712441aa696db3805618d7924a91cd0fa00146cdab927dec90dc1", kill_on_drop: false }`
[INFO] [stderr]    Compiling gap-buffer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "3122686c3c8712441aa696db3805618d7924a91cd0fa00146cdab927dec90dc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3122686c3c8712441aa696db3805618d7924a91cd0fa00146cdab927dec90dc1", kill_on_drop: false }`
[INFO] [stdout] 3122686c3c8712441aa696db3805618d7924a91cd0fa00146cdab927dec90dc1
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f0ab90312de1255bed171cded734a7ac58319844f807fa0c22baa56e5fc8c3f
[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" "5f0ab90312de1255bed171cded734a7ac58319844f807fa0c22baa56e5fc8c3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling gap-buffer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `Command { std: "docker" "inspect" "5f0ab90312de1255bed171cded734a7ac58319844f807fa0c22baa56e5fc8c3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f0ab90312de1255bed171cded734a7ac58319844f807fa0c22baa56e5fc8c3f", kill_on_drop: false }`
[INFO] [stdout] 5f0ab90312de1255bed171cded734a7ac58319844f807fa0c22baa56e5fc8c3f
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 39f52341c25da5d2127b964dfaa679b384d8705e13e32d7537baea0f3f0b6dfd
[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" "39f52341c25da5d2127b964dfaa679b384d8705e13e32d7537baea0f3f0b6dfd", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/gap_buffer-848ecad6ecd55bb8
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test tests::insert_str_2 ... ok
[INFO] [stdout] test tests::insert_str_3 ... ok
[INFO] [stdout] test tests::remove_2 ... ok
[INFO] [stdout] test tests::remove_3 ... ok
[INFO] [stdout] test tests::remove_4 ... ok
[INFO] [stdout] test tests::insert_str_4 ... ok
[INFO] [stdout] test tests::insert_str_5 ... ok
[INFO] [stdout] test tests::remove_1 ... ok
[INFO] [stdout] test tests::insert_str_1 ... ok
[INFO] [stderr]    Doc-tests gap-buffer
[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
[INFO] [stdout] 
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "39f52341c25da5d2127b964dfaa679b384d8705e13e32d7537baea0f3f0b6dfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39f52341c25da5d2127b964dfaa679b384d8705e13e32d7537baea0f3f0b6dfd", kill_on_drop: false }`
[INFO] [stdout] 39f52341c25da5d2127b964dfaa679b384d8705e13e32d7537baea0f3f0b6dfd