[INFO] fetching crate nib-server 0.0.1...
[INFO] testing nib-server-0.0.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate nib-server 0.0.1 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate nib-server 0.0.1 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 nib-server 0.0.1
[INFO] removed 1 missing tests
[INFO] finished tweaking crates.io crate nib-server 0.0.1
[INFO] tweaked toml for crates.io crate nib-server 0.0.1 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate nib-server 0.0.1 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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 4353cc39866b5b7ecebb7b7a5ea26e067d6e0168d8cf73faec91d1a9a55004b8
[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" "4353cc39866b5b7ecebb7b7a5ea26e067d6e0168d8cf73faec91d1a9a55004b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4353cc39866b5b7ecebb7b7a5ea26e067d6e0168d8cf73faec91d1a9a55004b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4353cc39866b5b7ecebb7b7a5ea26e067d6e0168d8cf73faec91d1a9a55004b8", kill_on_drop: false }`
[INFO] [stdout] 4353cc39866b5b7ecebb7b7a5ea26e067d6e0168d8cf73faec91d1a9a55004b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 9deb57317dd704bf16378a793f8ae31a1ccf7c4c0408ae731f9f16896f254898
[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" "9deb57317dd704bf16378a793f8ae31a1ccf7c4c0408ae731f9f16896f254898", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.23
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.34
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling pin-project-internal v0.4.17
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling tokio v0.2.21
[INFO] [stderr]    Compiling pin-project v0.4.17
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling futures-executor v0.3.5
[INFO] [stderr]    Compiling h2 v0.2.5
[INFO] [stderr]    Compiling futures v0.3.5
[INFO] [stderr]    Compiling hyper v0.13.5
[INFO] [stderr]    Compiling nib-server v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 52.78s
[INFO] running `Command { std: "docker" "inspect" "9deb57317dd704bf16378a793f8ae31a1ccf7c4c0408ae731f9f16896f254898", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9deb57317dd704bf16378a793f8ae31a1ccf7c4c0408ae731f9f16896f254898", kill_on_drop: false }`
[INFO] [stdout] 9deb57317dd704bf16378a793f8ae31a1ccf7c4c0408ae731f9f16896f254898
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 1bbe3563032f1e97e41bf50e65da6b3f3e3dfba945c0d9007d4c40316387bc64
[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" "1bbe3563032f1e97e41bf50e65da6b3f3e3dfba945c0d9007d4c40316387bc64", kill_on_drop: false }`
[INFO] [stderr]    Compiling nib-server v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "1bbe3563032f1e97e41bf50e65da6b3f3e3dfba945c0d9007d4c40316387bc64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bbe3563032f1e97e41bf50e65da6b3f3e3dfba945c0d9007d4c40316387bc64", kill_on_drop: false }`
[INFO] [stdout] 1bbe3563032f1e97e41bf50e65da6b3f3e3dfba945c0d9007d4c40316387bc64
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] ad50e34ece84560910817627f6a40aa08214191f244199449e79eb8df4dcbe31
[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" "ad50e34ece84560910817627f6a40aa08214191f244199449e79eb8df4dcbe31", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/nib_server-8a4d87067867df8f
[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" "ad50e34ece84560910817627f6a40aa08214191f244199449e79eb8df4dcbe31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad50e34ece84560910817627f6a40aa08214191f244199449e79eb8df4dcbe31", kill_on_drop: false }`
[INFO] [stdout] ad50e34ece84560910817627f6a40aa08214191f244199449e79eb8df4dcbe31