[INFO] fetching crate SwiftOS 0.0.1...
[INFO] testing SwiftOS-0.0.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate SwiftOS 0.0.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate SwiftOS 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 SwiftOS 0.0.1
[INFO] finished tweaking crates.io crate SwiftOS 0.0.1
[INFO] tweaked toml for crates.io crate SwiftOS 0.0.1 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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 477d0f4dfe890bd6e3062e97cf46818897e63fb03c058b7401656a442495daee
[INFO] running `Command { std: "docker" "start" "-a" "477d0f4dfe890bd6e3062e97cf46818897e63fb03c058b7401656a442495daee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "477d0f4dfe890bd6e3062e97cf46818897e63fb03c058b7401656a442495daee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "477d0f4dfe890bd6e3062e97cf46818897e63fb03c058b7401656a442495daee", kill_on_drop: false }`
[INFO] [stdout] 477d0f4dfe890bd6e3062e97cf46818897e63fb03c058b7401656a442495daee
[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] 6c4e96cee2e1eee92cdef7e9b9ac85178f63594a9d2917286f578120459c7944
[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" "6c4e96cee2e1eee92cdef7e9b9ac85178f63594a9d2917286f578120459c7944", kill_on_drop: false }`
[INFO] [stderr]    Compiling SwiftOS v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "6c4e96cee2e1eee92cdef7e9b9ac85178f63594a9d2917286f578120459c7944", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c4e96cee2e1eee92cdef7e9b9ac85178f63594a9d2917286f578120459c7944", kill_on_drop: false }`
[INFO] [stdout] 6c4e96cee2e1eee92cdef7e9b9ac85178f63594a9d2917286f578120459c7944
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ed308728dac6e0a9abd327494f2bc3475f3c7180711a11401ce8731fa70c1185
[INFO] running `Command { std: "docker" "start" "-a" "ed308728dac6e0a9abd327494f2bc3475f3c7180711a11401ce8731fa70c1185", kill_on_drop: false }`
[INFO] [stderr]    Compiling SwiftOS v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "ed308728dac6e0a9abd327494f2bc3475f3c7180711a11401ce8731fa70c1185", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed308728dac6e0a9abd327494f2bc3475f3c7180711a11401ce8731fa70c1185", kill_on_drop: false }`
[INFO] [stdout] ed308728dac6e0a9abd327494f2bc3475f3c7180711a11401ce8731fa70c1185
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1470a0db3a684551a113a3a97746d36de1cfa66448b82d79a662eb326dd40dd7
[INFO] running `Command { std: "docker" "start" "-a" "1470a0db3a684551a113a3a97746d36de1cfa66448b82d79a662eb326dd40dd7", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/SwiftOS-07b2397557b67cf1
[INFO] [stderr]    Doc-tests SwiftOS
[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] [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" "1470a0db3a684551a113a3a97746d36de1cfa66448b82d79a662eb326dd40dd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1470a0db3a684551a113a3a97746d36de1cfa66448b82d79a662eb326dd40dd7", kill_on_drop: false }`
[INFO] [stdout] 1470a0db3a684551a113a3a97746d36de1cfa66448b82d79a662eb326dd40dd7