[INFO] fetching crate multiwii_serial_protocol_v2 0.1.12...
[INFO] checking multiwii_serial_protocol_v2-0.1.12 against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] extracting crate multiwii_serial_protocol_v2 0.1.12 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate multiwii_serial_protocol_v2 0.1.12 on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate multiwii_serial_protocol_v2 0.1.12
[INFO] finished tweaking crates.io crate multiwii_serial_protocol_v2 0.1.12
[INFO] tweaked toml for crates.io crate multiwii_serial_protocol_v2 0.1.12 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quote v0.3.15
[INFO] [stderr]   Downloaded debug-helper v0.3.10
[INFO] [stderr]   Downloaded crc-any v2.3.5
[INFO] [stderr]   Downloaded syn v0.11.11
[INFO] [stderr]   Downloaded packed_struct_codegen v0.3.1
[INFO] [stderr]   Downloaded packed_struct v0.3.1
[INFO] [stderr]   Downloaded unicode-xid v0.0.4
[INFO] [stderr]   Downloaded synom v0.11.3
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "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] 764280511d547680f5a89a5d68b6376247a152a91f053cbbf637ecd9db69be78
[INFO] running `Command { std: "docker" "start" "-a" "764280511d547680f5a89a5d68b6376247a152a91f053cbbf637ecd9db69be78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "764280511d547680f5a89a5d68b6376247a152a91f053cbbf637ecd9db69be78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "764280511d547680f5a89a5d68b6376247a152a91f053cbbf637ecd9db69be78", kill_on_drop: false }`
[INFO] [stdout] 764280511d547680f5a89a5d68b6376247a152a91f053cbbf637ecd9db69be78
[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=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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cb565b3320978e5e7ea89c18915c0e5d59b267cc15647d65020e5194ed77235e
[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" "cb565b3320978e5e7ea89c18915c0e5d59b267cc15647d65020e5194ed77235e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]    Compiling packed_struct v0.3.1
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking debug-helper v0.3.10
[INFO] [stderr]     Checking crc-any v2.3.5
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling packed_struct_codegen v0.3.1
[INFO] [stderr]     Checking multiwii_serial_protocol_v2 v0.1.12 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.99s
[INFO] running `Command { std: "docker" "inspect" "cb565b3320978e5e7ea89c18915c0e5d59b267cc15647d65020e5194ed77235e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb565b3320978e5e7ea89c18915c0e5d59b267cc15647d65020e5194ed77235e", kill_on_drop: false }`
[INFO] [stdout] cb565b3320978e5e7ea89c18915c0e5d59b267cc15647d65020e5194ed77235e