[INFO] crate piece_table 0.1.0 is already in cache
[INFO] testing piece_table-0.1.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate piece_table 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate piece_table 0.1.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate piece_table 0.1.0
[INFO] finished tweaking crates.io crate piece_table 0.1.0
[INFO] tweaked toml for crates.io crate piece_table 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7c5c21912abf4fccadca1d44d93bebf4b13dd1effa77875e62512600942547f
[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" "b7c5c21912abf4fccadca1d44d93bebf4b13dd1effa77875e62512600942547f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7c5c21912abf4fccadca1d44d93bebf4b13dd1effa77875e62512600942547f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7c5c21912abf4fccadca1d44d93bebf4b13dd1effa77875e62512600942547f", kill_on_drop: false }`
[INFO] [stdout] b7c5c21912abf4fccadca1d44d93bebf4b13dd1effa77875e62512600942547f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df0c60e006271b68056699b967a33162e560bf968feea5af1794d6ce1a730309
[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" "df0c60e006271b68056699b967a33162e560bf968feea5af1794d6ce1a730309", kill_on_drop: false }`
[INFO] [stderr]    Compiling piece_table v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "df0c60e006271b68056699b967a33162e560bf968feea5af1794d6ce1a730309", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df0c60e006271b68056699b967a33162e560bf968feea5af1794d6ce1a730309", kill_on_drop: false }`
[INFO] [stdout] df0c60e006271b68056699b967a33162e560bf968feea5af1794d6ce1a730309
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 325a0d15899aebcf692e9a44f2b77b8831c96e8941310273964902f83f426a77
[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" "325a0d15899aebcf692e9a44f2b77b8831c96e8941310273964902f83f426a77", kill_on_drop: false }`
[INFO] [stderr]    Compiling piece_table v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "325a0d15899aebcf692e9a44f2b77b8831c96e8941310273964902f83f426a77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "325a0d15899aebcf692e9a44f2b77b8831c96e8941310273964902f83f426a77", kill_on_drop: false }`
[INFO] [stdout] 325a0d15899aebcf692e9a44f2b77b8831c96e8941310273964902f83f426a77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "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] fb03edf31474840b512a5b7d5322c0177e77c1fb934d24fbcbe2808f7588f146
[INFO] running `Command { std: "docker" "start" "-a" "fb03edf31474840b512a5b7d5322c0177e77c1fb934d24fbcbe2808f7588f146", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/piece_table-5a5041d32693d922
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test tests::char_at_init_state ... ok
[INFO] [stdout] test tests::add_string_at_empty ... ok
[INFO] [stdout] test tests::delete_string_at_middle_on_read_only_buffer ... ok
[INFO] [stdout] test tests::add_string_at_middle ... ok
[INFO] [stdout] test tests::add_string_at_start ... ok
[INFO] [stdout] test tests::add_string_at_end ... ok
[INFO] [stderr]    Doc-tests piece_table
[INFO] [stdout] test tests::init ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 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" "fb03edf31474840b512a5b7d5322c0177e77c1fb934d24fbcbe2808f7588f146", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb03edf31474840b512a5b7d5322c0177e77c1fb934d24fbcbe2808f7588f146", kill_on_drop: false }`
[INFO] [stdout] fb03edf31474840b512a5b7d5322c0177e77c1fb934d24fbcbe2808f7588f146