[INFO] fetching crate rustbee 0.1.1...
[INFO] testing rustbee-0.1.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate rustbee 0.1.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate rustbee 0.1.1 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 rustbee 0.1.1
[INFO] finished tweaking crates.io crate rustbee 0.1.1
[INFO] tweaked toml for crates.io crate rustbee 0.1.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate rustbee 0.1.1 already has a lockfile, it will not be regenerated
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9195b3dcb028bd8e86bef2a878c0386042e7106a7f20d1d3ffa1534c16208083
[INFO] running `Command { std: "docker" "start" "-a" "9195b3dcb028bd8e86bef2a878c0386042e7106a7f20d1d3ffa1534c16208083", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9195b3dcb028bd8e86bef2a878c0386042e7106a7f20d1d3ffa1534c16208083", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9195b3dcb028bd8e86bef2a878c0386042e7106a7f20d1d3ffa1534c16208083", kill_on_drop: false }`
[INFO] [stdout] 9195b3dcb028bd8e86bef2a878c0386042e7106a7f20d1d3ffa1534c16208083
[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] e867c6bbfe44d82165dfb5ef0020f3c7c8790845de185eeee1096f99cc3dd794
[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" "e867c6bbfe44d82165dfb5ef0020f3c7c8790845de185eeee1096f99cc3dd794", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling libudev v0.2.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling serialport v3.3.0
[INFO] [stderr]    Compiling rustbee v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.80s
[INFO] running `Command { std: "docker" "inspect" "e867c6bbfe44d82165dfb5ef0020f3c7c8790845de185eeee1096f99cc3dd794", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e867c6bbfe44d82165dfb5ef0020f3c7c8790845de185eeee1096f99cc3dd794", kill_on_drop: false }`
[INFO] [stdout] e867c6bbfe44d82165dfb5ef0020f3c7c8790845de185eeee1096f99cc3dd794
[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] 1741bfe234cf25f6539f8b7bbb3d608a0d8fba5f1844afe88056285467859979
[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" "1741bfe234cf25f6539f8b7bbb3d608a0d8fba5f1844afe88056285467859979", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustbee v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.47s
[INFO] running `Command { std: "docker" "inspect" "1741bfe234cf25f6539f8b7bbb3d608a0d8fba5f1844afe88056285467859979", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1741bfe234cf25f6539f8b7bbb3d608a0d8fba5f1844afe88056285467859979", kill_on_drop: false }`
[INFO] [stdout] 1741bfe234cf25f6539f8b7bbb3d608a0d8fba5f1844afe88056285467859979
[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] 533ee83c752aecc92df692301a2f1d6011cf17f377077e8ec782566d63a89fe9
[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" "533ee83c752aecc92df692301a2f1d6011cf17f377077e8ec782566d63a89fe9", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rustbee-dc993ca37ae1653c
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rustbee
[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" "533ee83c752aecc92df692301a2f1d6011cf17f377077e8ec782566d63a89fe9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "533ee83c752aecc92df692301a2f1d6011cf17f377077e8ec782566d63a89fe9", kill_on_drop: false }`
[INFO] [stdout] 533ee83c752aecc92df692301a2f1d6011cf17f377077e8ec782566d63a89fe9