[INFO] cloning repository https://github.com/reynoldsbd/polos-alef-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/reynoldsbd/polos-alef-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freynoldsbd%2Fpolos-alef-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freynoldsbd%2Fpolos-alef-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 33067bd939b5fd4ae3ac5abb2b8349626fbcb9fc
[INFO] checking reynoldsbd/polos-alef-rust against try#4907eac94165faff6c5e5e015670b1c584275f7b for pr-154149
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freynoldsbd%2Fpolos-alef-rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-0-tc2/source/.cargo/config
[INFO] started tweaking git repo https://github.com/reynoldsbd/polos-alef-rust
[INFO] finished tweaking git repo https://github.com/reynoldsbd/polos-alef-rust
[INFO] tweaked toml for git repo https://github.com/reynoldsbd/polos-alef-rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/reynoldsbd/polos-alef-rust on toolchain 4907eac94165faff6c5e5e015670b1c584275f7b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4907eac94165faff6c5e5e015670b1c584275f7b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/reynoldsbd/polos-alef-rust 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" "+4907eac94165faff6c5e5e015670b1c584275f7b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking reynoldsbd/polos-alef-rust against try#4907eac94165faff6c5e5e015670b1c584275f7b for pr-154149
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freynoldsbd%2Fpolos-alef-rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-0-tc2/source/.cargo/config
[INFO] started tweaking git repo https://github.com/reynoldsbd/polos-alef-rust
[INFO] finished tweaking git repo https://github.com/reynoldsbd/polos-alef-rust
[INFO] tweaked toml for git repo https://github.com/reynoldsbd/polos-alef-rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/reynoldsbd/polos-alef-rust on toolchain 4907eac94165faff6c5e5e015670b1c584275f7b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4907eac94165faff6c5e5e015670b1c584275f7b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/reynoldsbd/polos-alef-rust 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" "+4907eac94165faff6c5e5e015670b1c584275f7b" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nb v0.1.2
[INFO] [stderr]   Downloaded vcell v0.1.2
[INFO] [stderr]   Downloaded bit_field v0.9.0
[INFO] [stderr]   Downloaded riscv-rt-macros v0.1.6
[INFO] [stderr]   Downloaded bare-metal v0.2.4
[INFO] [stderr]   Downloaded riscv-rt v0.7.0
[INFO] [stderr]   Downloaded gd32vf103xx-hal v0.3.0
[INFO] [stderr]   Downloaded embedded-hal v0.2.3
[INFO] [stderr]   Downloaded riscv v0.5.6
[INFO] [stderr]   Downloaded gd32vf103-pac v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+4907eac94165faff6c5e5e015670b1c584275f7b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a2b7691778a55c695fa5d187e51dd70600959d0acf1fb9ee38b9db1e0dd4d9c2
[INFO] running `Command { std: "docker" "start" "-a" "a2b7691778a55c695fa5d187e51dd70600959d0acf1fb9ee38b9db1e0dd4d9c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2b7691778a55c695fa5d187e51dd70600959d0acf1fb9ee38b9db1e0dd4d9c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2b7691778a55c695fa5d187e51dd70600959d0acf1fb9ee38b9db1e0dd4d9c2", kill_on_drop: false }`
[INFO] [stdout] a2b7691778a55c695fa5d187e51dd70600959d0acf1fb9ee38b9db1e0dd4d9c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+4907eac94165faff6c5e5e015670b1c584275f7b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] efb6d55cd10a9e29f898f8f07102daaa7c64f1c821a7eb3d567f7f1b9f6b7bf7
[INFO] running `Command { std: "docker" "start" "-a" "efb6d55cd10a9e29f898f8f07102daaa7c64f1c821a7eb3d567f7f1b9f6b7bf7", kill_on_drop: false }`
[INFO] [stderr]    Compiling bare-metal v0.2.4
[INFO] [stderr]    Compiling riscv v0.5.6
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]     Checking bit_field v0.9.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling gd32vf103xx-hal v0.3.0
[INFO] [stderr]     Checking vcell v0.1.2
[INFO] [stderr]     Checking nb v0.1.2
[INFO] [stderr]    Compiling riscv-rt v0.7.0
[INFO] [stderr]    Compiling gd32vf103-samples v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking r0 v1.0.0
[INFO] [stderr]     Checking panic-halt v0.2.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking embedded-hal v0.2.3
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]     Checking gd32vf103-pac v0.3.0
[INFO] [stderr]    Compiling riscv-rt-macros v0.1.6
[INFO] [stdout] error: unwinding panics are not supported without std
[INFO] [stdout]   |
[INFO] [stdout]   = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding
[INFO] [stdout]   = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: 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 `hello` depends on)
[INFO] [stdout]   = note: first definition in `panic_halt` loaded from /opt/rustwide/target/debug/deps/libpanic_halt-b09f8ab056e64272.rmeta
[INFO] [stdout]   = note: second definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/4907eac94165faff6c5e5e015670b1c584275f7b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-eaa78b24106cd0ea.rmeta
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: 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 `echo` depends on)
[INFO] [stdout]   = note: first definition in `panic_halt` loaded from /opt/rustwide/target/debug/deps/libpanic_halt-b09f8ab056e64272.rmeta
[INFO] [stdout]   = note: second definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/4907eac94165faff6c5e5e015670b1c584275f7b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-eaa78b24106cd0ea.rmeta
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stdout] error: unwinding panics are not supported without std
[INFO] [stdout]   |
[INFO] [stdout]   = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding
[INFO] [stdout]   = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gd32vf103-samples` (bin "echo") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `gd32vf103-samples` (bin "echo" test) due to 1 previous error
[INFO] [stdout] error: unwinding panics are not supported without std
[INFO] [stdout]   |
[INFO] [stdout]   = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding
[INFO] [stdout]   = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gd32vf103-samples` (bin "interrupt") due to 1 previous error
[INFO] [stdout] error: unwinding panics are not supported without std
[INFO] [stdout]   |
[INFO] [stdout]   = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding
[INFO] [stdout]   = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gd32vf103-samples` (bin "hello") due to 1 previous error
[INFO] [stderr] error: could not compile `gd32vf103-samples` (bin "hello" test) due to 1 previous error
[INFO] [stderr] error: could not compile `gd32vf103-samples` (bin "blinky") due to 1 previous error
[INFO] [stdout] error[E0152]: 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 `interrupt` depends on)
[INFO] [stdout]   = note: first definition in `panic_halt` loaded from /opt/rustwide/target/debug/deps/libpanic_halt-b09f8ab056e64272.rmeta
[INFO] [stdout]   = note: second definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/4907eac94165faff6c5e5e015670b1c584275f7b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-eaa78b24106cd0ea.rmeta
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gd32vf103-samples` (bin "interrupt" test) due to 1 previous error
[INFO] [stdout] error[E0152]: 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 `blinky` depends on)
[INFO] [stdout]   = note: first definition in `panic_halt` loaded from /opt/rustwide/target/debug/deps/libpanic_halt-b09f8ab056e64272.rmeta
[INFO] [stdout]   = note: second definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/4907eac94165faff6c5e5e015670b1c584275f7b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-eaa78b24106cd0ea.rmeta
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gd32vf103-samples` (bin "blinky" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "efb6d55cd10a9e29f898f8f07102daaa7c64f1c821a7eb3d567f7f1b9f6b7bf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efb6d55cd10a9e29f898f8f07102daaa7c64f1c821a7eb3d567f7f1b9f6b7bf7", kill_on_drop: false }`
[INFO] [stdout] efb6d55cd10a9e29f898f8f07102daaa7c64f1c821a7eb3d567f7f1b9f6b7bf7