[INFO] fetching crate serial_frame 0.3.0...
[INFO] testing serial_frame-0.3.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate serial_frame 0.3.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate serial_frame 0.3.0 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 serial_frame 0.3.0
[INFO] finished tweaking crates.io crate serial_frame 0.3.0
[INFO] tweaked toml for crates.io crate serial_frame 0.3.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate serial_frame 0.3.0 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] [stderr]     Blocking waiting for file lock on package cache
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4940d221142b3f5a3db7948d04745b9acd9c9673cfd84bd3a33a41498e1bf1cb
[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" "4940d221142b3f5a3db7948d04745b9acd9c9673cfd84bd3a33a41498e1bf1cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4940d221142b3f5a3db7948d04745b9acd9c9673cfd84bd3a33a41498e1bf1cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4940d221142b3f5a3db7948d04745b9acd9c9673cfd84bd3a33a41498e1bf1cb", kill_on_drop: false }`
[INFO] [stdout] 4940d221142b3f5a3db7948d04745b9acd9c9673cfd84bd3a33a41498e1bf1cb
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d045274a4fc3d171cf871ba9bff79370f1cfa113f7ec53ca265280127d13198
[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" "5d045274a4fc3d171cf871ba9bff79370f1cfa113f7ec53ca265280127d13198", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.7
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling serialport v3.3.0
[INFO] [stderr]    Compiling derive_more v0.99.2
[INFO] [stderr]    Compiling serial_frame v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.83s
[INFO] running `Command { std: "docker" "inspect" "5d045274a4fc3d171cf871ba9bff79370f1cfa113f7ec53ca265280127d13198", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d045274a4fc3d171cf871ba9bff79370f1cfa113f7ec53ca265280127d13198", kill_on_drop: false }`
[INFO] [stdout] 5d045274a4fc3d171cf871ba9bff79370f1cfa113f7ec53ca265280127d13198
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9477aa2f78362c7b95f1c81715a8023a65b3b0ccbd5342d42709f837c47a163b
[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" "9477aa2f78362c7b95f1c81715a8023a65b3b0ccbd5342d42709f837c47a163b", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling colored v1.9.2
[INFO] [stderr]    Compiling chrono v0.4.10
[INFO] [stderr]    Compiling simple_logger v1.4.0
[INFO] [stderr]    Compiling serial_frame v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 10.25s
[INFO] running `Command { std: "docker" "inspect" "9477aa2f78362c7b95f1c81715a8023a65b3b0ccbd5342d42709f837c47a163b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9477aa2f78362c7b95f1c81715a8023a65b3b0ccbd5342d42709f837c47a163b", kill_on_drop: false }`
[INFO] [stdout] 9477aa2f78362c7b95f1c81715a8023a65b3b0ccbd5342d42709f837c47a163b
[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: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] 22b65154a72548a789b2e5b8924b6bb264266a53cad08825c6f0836f710ab7be
[INFO] running `Command { std: "docker" "start" "-a" "22b65154a72548a789b2e5b8924b6bb264266a53cad08825c6f0836f710ab7be", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/serial_frame-7c6d879ee3c73e93
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests serial_frame
[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] [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" "22b65154a72548a789b2e5b8924b6bb264266a53cad08825c6f0836f710ab7be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22b65154a72548a789b2e5b8924b6bb264266a53cad08825c6f0836f710ab7be", kill_on_drop: false }`
[INFO] [stdout] 22b65154a72548a789b2e5b8924b6bb264266a53cad08825c6f0836f710ab7be