[INFO] fetching crate ev3dev-lang-rust 0.15.0...
[INFO] checking ev3dev-lang-rust-0.15.0 against master#cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9 for pr-136968
[INFO] extracting crate ev3dev-lang-rust 0.15.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate ev3dev-lang-rust 0.15.0 on toolchain cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0-tc1/source/.cargo/config.toml
[INFO] started tweaking crates.io crate ev3dev-lang-rust 0.15.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate ev3dev-lang-rust 0.15.0
[INFO] tweaked toml for crates.io crate ev3dev-lang-rust 0.15.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate ev3dev-lang-rust 0.15.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ev3dev-lang-rust-derive v0.10.0
[INFO] [stderr]   Downloaded framebuffer v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c134d4b440c8a9b6a67cb0f476975f2abfd088bb010c8f72d7fbe2630e553a0
[INFO] running `Command { std: "docker" "start" "-a" "9c134d4b440c8a9b6a67cb0f476975f2abfd088bb010c8f72d7fbe2630e553a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c134d4b440c8a9b6a67cb0f476975f2abfd088bb010c8f72d7fbe2630e553a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c134d4b440c8a9b6a67cb0f476975f2abfd088bb010c8f72d7fbe2630e553a0", kill_on_drop: false }`
[INFO] [stdout] 9c134d4b440c8a9b6a67cb0f476975f2abfd088bb010c8f72d7fbe2630e553a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 72d5a36c135bd969a162350fa1c55f2a642a8d79526c6d5077b58a5ece1ee83a
[INFO] running `Command { std: "docker" "start" "-a" "72d5a36c135bd969a162350fa1c55f2a642a8d79526c6d5077b58a5ece1ee83a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling ev3dev-lang-rust-derive v0.10.0
[INFO] [stderr]     Checking ev3dev-lang-rust v0.15.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.45s
[INFO] running `Command { std: "docker" "inspect" "72d5a36c135bd969a162350fa1c55f2a642a8d79526c6d5077b58a5ece1ee83a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72d5a36c135bd969a162350fa1c55f2a642a8d79526c6d5077b58a5ece1ee83a", kill_on_drop: false }`
[INFO] [stdout] 72d5a36c135bd969a162350fa1c55f2a642a8d79526c6d5077b58a5ece1ee83a