[INFO] cloning repository https://github.com/hauke/longan-nano-rust-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hauke/longan-nano-rust-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhauke%2Flongan-nano-rust-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhauke%2Flongan-nano-rust-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5daca57998286c6c9820b2433595aee4f7ecf93d
[INFO] testing hauke/longan-nano-rust-playground against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhauke%2Flongan-nano-rust-playground" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hauke/longan-nano-rust-playground on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7/source/.cargo/config
[INFO] started tweaking git repo https://github.com/hauke/longan-nano-rust-playground
[INFO] finished tweaking git repo https://github.com/hauke/longan-nano-rust-playground
[INFO] tweaked toml for git repo https://github.com/hauke/longan-nano-rust-playground written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/hauke/longan-nano-rust-playground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/riscv-rust/longan-nano.git`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded embedded-hal v0.2.4
[INFO] [stderr]   Downloaded bit_field v0.9.0
[INFO] [stderr]   Downloaded nb v1.0.0
[INFO] [stderr]   Downloaded nb v0.1.3
[INFO] [stderr]   Downloaded r0 v1.0.0
[INFO] [stderr]   Downloaded riscv-target v0.1.2
[INFO] [stderr]   Downloaded riscv-rt-macros v0.1.6
[INFO] [stderr]   Downloaded gd32vf103-pac v0.3.1
[INFO] [stderr]   Downloaded embedded-graphics v0.6.2
[INFO] [stderr]   Downloaded panic-halt v0.2.0
[INFO] [stderr]   Downloaded bare-metal v0.2.4
[INFO] [stderr]   Downloaded riscv-rt v0.7.2
[INFO] [stderr]   Downloaded st7735-lcd v0.7.2
[INFO] [stderr]   Downloaded gd32vf103xx-hal v0.3.0
[INFO] [stderr]   Downloaded riscv v0.5.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f00bf9c0e353924b64818c48563b1820bfce434ed3ec345092bf54e347c76c4f
[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" "f00bf9c0e353924b64818c48563b1820bfce434ed3ec345092bf54e347c76c4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f00bf9c0e353924b64818c48563b1820bfce434ed3ec345092bf54e347c76c4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f00bf9c0e353924b64818c48563b1820bfce434ed3ec345092bf54e347c76c4f", kill_on_drop: false }`
[INFO] [stdout] f00bf9c0e353924b64818c48563b1820bfce434ed3ec345092bf54e347c76c4f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c60928ba5363ac1303ac38d863a5ccde08dd8d50ca6a8f7f064c8c7ff63bb940
[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" "c60928ba5363ac1303ac38d863a5ccde08dd8d50ca6a8f7f064c8c7ff63bb940", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling riscv v0.5.6
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling nb v1.0.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling bit_field v0.9.0
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling vcell v0.1.2
[INFO] [stderr]    Compiling gd32vf103xx-hal v0.3.0
[INFO] [stderr]    Compiling longan-nano v0.1.1 (https://github.com/riscv-rust/longan-nano.git?branch=master#34c172a7)
[INFO] [stderr]    Compiling r0 v1.0.0
[INFO] [stderr]    Compiling panic-halt v0.2.0
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling bare-metal v0.2.4
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling embedded-hal v0.2.4
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling aho-corasick v0.7.13
[INFO] [stderr]    Compiling embedded-graphics v0.6.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling gd32vf103-pac v0.3.1
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling riscv-target v0.1.2
[INFO] [stderr]    Compiling riscv-rt v0.7.2
[INFO] [stderr]    Compiling riscv-rt-macros v0.1.6
[INFO] [stderr]    Compiling st7735-lcd v0.7.2
[INFO] [stderr]    Compiling longan-nano-rust-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: language item required, but not found: `eh_personality`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `longan-nano-rust-playground`
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "c60928ba5363ac1303ac38d863a5ccde08dd8d50ca6a8f7f064c8c7ff63bb940", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c60928ba5363ac1303ac38d863a5ccde08dd8d50ca6a8f7f064c8c7ff63bb940", kill_on_drop: false }`
[INFO] [stdout] c60928ba5363ac1303ac38d863a5ccde08dd8d50ca6a8f7f064c8c7ff63bb940