[INFO] cloning repository https://github.com/pdx-cs-rust/nanoball
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pdx-cs-rust/nanoball" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpdx-cs-rust%2Fnanoball", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpdx-cs-rust%2Fnanoball'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 27e179299de96b1d77cc11dcec6c0b1a58a23ed9
[INFO] checking pdx-cs-rust/nanoball against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpdx-cs-rust%2Fnanoball" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pdx-cs-rust/nanoball on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4/source/.cargo/config
[INFO] started tweaking git repo https://github.com/pdx-cs-rust/nanoball
[INFO] finished tweaking git repo https://github.com/pdx-cs-rust/nanoball
[INFO] tweaked toml for git repo https://github.com/pdx-cs-rust/nanoball written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/pdx-cs-rust/nanoball already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aa3e6f50883ad2db80865de70dfd78a8a60c3efb91f3ef3db896aba340f65b70
[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" "aa3e6f50883ad2db80865de70dfd78a8a60c3efb91f3ef3db896aba340f65b70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa3e6f50883ad2db80865de70dfd78a8a60c3efb91f3ef3db896aba340f65b70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa3e6f50883ad2db80865de70dfd78a8a60c3efb91f3ef3db896aba340f65b70", kill_on_drop: false }`
[INFO] [stdout] aa3e6f50883ad2db80865de70dfd78a8a60c3efb91f3ef3db896aba340f65b70
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9182379a7a82a73bd38c4c82730eec4f00f60bfe56031ee91094c684e830eda
[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" "b9182379a7a82a73bd38c4c82730eec4f00f60bfe56031ee91094c684e830eda", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.6.23
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling gd32vf103xx-hal v0.4.0
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]     Checking bit_field v0.10.1
[INFO] [stderr]     Checking nb v0.1.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling longan-nano v0.2.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking vcell v0.1.2
[INFO] [stderr]    Compiling nanoball v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking r0 v1.0.0
[INFO] [stderr]     Checking panic-halt v0.2.0
[INFO] [stderr]     Checking embedded-graphics v0.6.2
[INFO] [stderr]     Checking embedded-hal v0.2.4
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking num-traits v0.2.11
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling regex v1.4.5
[INFO] [stderr]    Compiling riscv-target v0.1.2
[INFO] [stderr]    Compiling riscv v0.6.0
[INFO] [stderr]    Compiling riscv-rt v0.8.0
[INFO] [stderr]     Checking gd32vf103-pac v0.4.0
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling riscv-rt-macros v0.1.6
[INFO] [stderr]     Checking st7735-lcd v0.7.2
[INFO] [stdout] error: duplicate lang item in crate `std` (which `test` depends on): `panic_impl`.
[INFO] [stdout]   |
[INFO] [stdout]   = note: the lang item is first defined in crate `panic_halt` (which `nanoball` depends on)
[INFO] [stdout]   = note: first definition in `panic_halt` loaded from /opt/rustwide/target/debug/deps/libpanic_halt-31d59393651153d0.rmeta
[INFO] [stdout]   = note: second definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/db1fb85cff63ad5fffe435e17128f99f9e1d970c/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-d6566390077dd5f5.rlib
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nanoball` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "b9182379a7a82a73bd38c4c82730eec4f00f60bfe56031ee91094c684e830eda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9182379a7a82a73bd38c4c82730eec4f00f60bfe56031ee91094c684e830eda", kill_on_drop: false }`
[INFO] [stdout] b9182379a7a82a73bd38c4c82730eec4f00f60bfe56031ee91094c684e830eda