[INFO] fetching crate dynamixel2 0.3.1...
[INFO] testing dynamixel2-0.3.1 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate dynamixel2 0.3.1 into /workspace/builds/worker-42/source
[INFO] validating manifest of crates.io crate dynamixel2 0.3.1 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dynamixel2 0.3.1
[INFO] finished tweaking crates.io crate dynamixel2 0.3.1
[INFO] tweaked toml for crates.io crate dynamixel2 0.3.1 written to /workspace/builds/worker-42/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--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-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a467710049226123f7d6897e91d4dac7bbfa196dc2ac2d1b871a3da0fdeb9dae
[INFO] running `Command { std: "docker" "start" "-a" "a467710049226123f7d6897e91d4dac7bbfa196dc2ac2d1b871a3da0fdeb9dae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a467710049226123f7d6897e91d4dac7bbfa196dc2ac2d1b871a3da0fdeb9dae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a467710049226123f7d6897e91d4dac7bbfa196dc2ac2d1b871a3da0fdeb9dae", kill_on_drop: false }`
[INFO] [stdout] a467710049226123f7d6897e91d4dac7bbfa196dc2ac2d1b871a3da0fdeb9dae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a50d18ded6678114057b3d6abb170da4cd12312f3c14cbe2f903d5c6d8a7a4b3
[INFO] running `Command { std: "docker" "start" "-a" "a50d18ded6678114057b3d6abb170da4cd12312f3c14cbe2f903d5c6d8a7a4b3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling serial2 v0.1.4
[INFO] [stderr]    Compiling dynamixel2 v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.86s
[INFO] running `Command { std: "docker" "inspect" "a50d18ded6678114057b3d6abb170da4cd12312f3c14cbe2f903d5c6d8a7a4b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a50d18ded6678114057b3d6abb170da4cd12312f3c14cbe2f903d5c6d8a7a4b3", kill_on_drop: false }`
[INFO] [stdout] a50d18ded6678114057b3d6abb170da4cd12312f3c14cbe2f903d5c6d8a7a4b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bbae79e36eb09790a1547b04945a94facbb04c0666d08b015731e7a54abeb3d1
[INFO] running `Command { std: "docker" "start" "-a" "bbae79e36eb09790a1547b04945a94facbb04c0666d08b015731e7a54abeb3d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling yansi v0.5.0
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling assert2-macros v0.3.6
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling env_logger v0.9.0
[INFO] [stderr]    Compiling assert2 v0.3.6
[INFO] [stderr]    Compiling dynamixel2 v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 9.88s
[INFO] running `Command { std: "docker" "inspect" "bbae79e36eb09790a1547b04945a94facbb04c0666d08b015731e7a54abeb3d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbae79e36eb09790a1547b04945a94facbb04c0666d08b015731e7a54abeb3d1", kill_on_drop: false }`
[INFO] [stdout] bbae79e36eb09790a1547b04945a94facbb04c0666d08b015731e7a54abeb3d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4b8ba6d995da3e812f2b3e15d8421d10e9326c7c62cf411e3b6909d040d13b4b
[INFO] running `Command { std: "docker" "start" "-a" "4b8ba6d995da3e812f2b3e15d8421d10e9326c7c62cf411e3b6909d040d13b4b", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/dynamixel2-3028aa74f6c08089)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test bus::test::test_find_garbage_end ... ok
[INFO] [stdout] test bytestuff::test::test_stuff ... ok
[INFO] [stdout] test bytestuff::test::test_unstuff ... ok
[INFO] [stdout] test checksum::tests::test_calculate_checksum ... ok
[INFO] [stdout] test endian::test::test_read_u32_le ... ok
[INFO] [stdout] test endian::test::test_read_u16_le ... ok
[INFO] [stdout] test endian::test::test_write_u16_le ... ok
[INFO] [stdout] test endian::test::test_write_u32_le ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests dynamixel2
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4b8ba6d995da3e812f2b3e15d8421d10e9326c7c62cf411e3b6909d040d13b4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b8ba6d995da3e812f2b3e15d8421d10e9326c7c62cf411e3b6909d040d13b4b", kill_on_drop: false }`
[INFO] [stdout] 4b8ba6d995da3e812f2b3e15d8421d10e9326c7c62cf411e3b6909d040d13b4b