[INFO] fetching crate dynamixel2 0.1.3...
[INFO] checking dynamixel2-0.1.3 against master#6526e5c772f2da07db745c94ca6bb0a591a39ba4 for pr-80920
[INFO] extracting crate dynamixel2 0.1.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate dynamixel2 0.1.3 on toolchain 6526e5c772f2da07db745c94ca6bb0a591a39ba4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dynamixel2 0.1.3
[INFO] finished tweaking crates.io crate dynamixel2 0.1.3
[INFO] tweaked toml for crates.io crate dynamixel2 0.1.3 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate dynamixel2 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 92a97dd4b5f51a3b08d3c258e21de60c3d432818ea3d38d0e177f551ee2350a9
[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" "92a97dd4b5f51a3b08d3c258e21de60c3d432818ea3d38d0e177f551ee2350a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92a97dd4b5f51a3b08d3c258e21de60c3d432818ea3d38d0e177f551ee2350a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92a97dd4b5f51a3b08d3c258e21de60c3d432818ea3d38d0e177f551ee2350a9", kill_on_drop: false }`
[INFO] [stdout] 92a97dd4b5f51a3b08d3c258e21de60c3d432818ea3d38d0e177f551ee2350a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b07f6829aef51292c4094462ccb79d5a073e6e1b3c1e8c675fb95fce964b5a5
[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" "9b07f6829aef51292c4094462ccb79d5a073e6e1b3c1e8c675fb95fce964b5a5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]    Compiling proc-macro-hack v0.5.16
[INFO] [stderr]     Checking yansi v0.5.0
[INFO] [stderr]     Checking dynamixel2 v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling assert2-macros v0.2.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking termios v0.2.2
[INFO] [stderr]     Checking ioctl-rs v0.1.6
[INFO] [stderr]     Checking serial-core v0.4.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking serial-unix v0.4.0
[INFO] [stderr]     Checking serial v0.4.0
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking assert2 v0.2.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.70s
[INFO] running `Command { std: "docker" "inspect" "9b07f6829aef51292c4094462ccb79d5a073e6e1b3c1e8c675fb95fce964b5a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b07f6829aef51292c4094462ccb79d5a073e6e1b3c1e8c675fb95fce964b5a5", kill_on_drop: false }`
[INFO] [stdout] 9b07f6829aef51292c4094462ccb79d5a073e6e1b3c1e8c675fb95fce964b5a5