[INFO] fetching crate bit_manager 0.5.3...
[INFO] testing bit_manager-0.5.3 against 1.49.0 for beta-1.50-1
[INFO] extracting crate bit_manager 0.5.3 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate bit_manager 0.5.3 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 bit_manager 0.5.3
[INFO] finished tweaking crates.io crate bit_manager 0.5.3
[INFO] tweaked toml for crates.io crate bit_manager 0.5.3 written to /workspace/builds/worker-0/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] [stderr]     Blocking waiting for file lock on package cache
[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-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 825e98b70bce687c49f5a64e57ba211f6f9c30d743caebf6d90913a5c47e35a5
[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" "825e98b70bce687c49f5a64e57ba211f6f9c30d743caebf6d90913a5c47e35a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "825e98b70bce687c49f5a64e57ba211f6f9c30d743caebf6d90913a5c47e35a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "825e98b70bce687c49f5a64e57ba211f6f9c30d743caebf6d90913a5c47e35a5", kill_on_drop: false }`
[INFO] [stdout] 825e98b70bce687c49f5a64e57ba211f6f9c30d743caebf6d90913a5c47e35a5
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9456e44241cec5281ac51bcaac84f228b242a24cf2d26f662111e82d82379bdb
[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" "9456e44241cec5281ac51bcaac84f228b242a24cf2d26f662111e82d82379bdb", kill_on_drop: false }`
[INFO] [stderr]    Compiling bit_manager v0.5.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.15s
[INFO] running `Command { std: "docker" "inspect" "9456e44241cec5281ac51bcaac84f228b242a24cf2d26f662111e82d82379bdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9456e44241cec5281ac51bcaac84f228b242a24cf2d26f662111e82d82379bdb", kill_on_drop: false }`
[INFO] [stdout] 9456e44241cec5281ac51bcaac84f228b242a24cf2d26f662111e82d82379bdb
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--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] 7daf96a03446b46d5bbe2e58849f74aef3f8ecb9f918a751d83cf35fb6bc3347
[INFO] running `Command { std: "docker" "start" "-a" "7daf96a03446b46d5bbe2e58849f74aef3f8ecb9f918a751d83cf35fb6bc3347", kill_on_drop: false }`
[INFO] [stderr]    Compiling bit_manager v0.5.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.66s
[INFO] running `Command { std: "docker" "inspect" "7daf96a03446b46d5bbe2e58849f74aef3f8ecb9f918a751d83cf35fb6bc3347", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7daf96a03446b46d5bbe2e58849f74aef3f8ecb9f918a751d83cf35fb6bc3347", kill_on_drop: false }`
[INFO] [stdout] 7daf96a03446b46d5bbe2e58849f74aef3f8ecb9f918a751d83cf35fb6bc3347
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7ff9dfb0f0b0aad179b53903bc5696f5cad9f53adf3fb1de6117673fe2e1ef11
[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" "7ff9dfb0f0b0aad179b53903bc5696f5cad9f53adf3fb1de6117673fe2e1ef11", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/bit_manager-40dbb437175d873d
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests bit_manager
[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] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/prelude.rs - prelude (line 3) ... ok
[INFO] [stdout] test src/lib.rs - (line 6) ... ok
[INFO] [stdout] test src/lib.rs - (line 20) ... ok
[INFO] [stdout] test src/io.rs - io::BitWriter (line 238) ... ok
[INFO] [stdout] test src/io.rs - io::BitReader (line 134) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7ff9dfb0f0b0aad179b53903bc5696f5cad9f53adf3fb1de6117673fe2e1ef11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ff9dfb0f0b0aad179b53903bc5696f5cad9f53adf3fb1de6117673fe2e1ef11", kill_on_drop: false }`
[INFO] [stdout] 7ff9dfb0f0b0aad179b53903bc5696f5cad9f53adf3fb1de6117673fe2e1ef11