[INFO] fetching crate IOT_B3 0.1.0...
[INFO] checking IOT_B3-0.1.0 against master#8f21a5c92ea55c348c275a1bc4fedbdf181e0d64 for pr-143011
[INFO] extracting crate IOT_B3 0.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate IOT_B3 0.1.0
[INFO] finished tweaking crates.io crate IOT_B3 0.1.0
[INFO] tweaked toml for crates.io crate IOT_B3 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate IOT_B3 0.1.0 on toolchain 8f21a5c92ea55c348c275a1bc4fedbdf181e0d64
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b63b31b249e2af5f7116abe99f988a5abfd1a88555e57d9a37a6b8dccdf2205b
[INFO] running `Command { std: "docker" "start" "-a" "b63b31b249e2af5f7116abe99f988a5abfd1a88555e57d9a37a6b8dccdf2205b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b63b31b249e2af5f7116abe99f988a5abfd1a88555e57d9a37a6b8dccdf2205b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b63b31b249e2af5f7116abe99f988a5abfd1a88555e57d9a37a6b8dccdf2205b", kill_on_drop: false }`
[INFO] [stdout] b63b31b249e2af5f7116abe99f988a5abfd1a88555e57d9a37a6b8dccdf2205b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b8184785f42655c57d34c099c200d55d2f2a5255e9ed4a50ebfe654b09e8107
[INFO] running `Command { std: "docker" "start" "-a" "5b8184785f42655c57d34c099c200d55d2f2a5255e9ed4a50ebfe654b09e8107", kill_on_drop: false }`
[INFO] [stderr]     Checking IOT_B3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: crate `IOT_B3` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `iot_b3`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "5b8184785f42655c57d34c099c200d55d2f2a5255e9ed4a50ebfe654b09e8107", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b8184785f42655c57d34c099c200d55d2f2a5255e9ed4a50ebfe654b09e8107", kill_on_drop: false }`
[INFO] [stdout] 5b8184785f42655c57d34c099c200d55d2f2a5255e9ed4a50ebfe654b09e8107