[INFO] cloning repository https://github.com/tweedegolf/embedded-workshop
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tweedegolf/embedded-workshop" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftweedegolf%2Fembedded-workshop", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftweedegolf%2Fembedded-workshop'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8839ecc6655863350a49c203a8eaa0ac71dbb153
[INFO] documenting tweedegolf/embedded-workshop against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftweedegolf%2Fembedded-workshop" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tweedegolf/embedded-workshop on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/tweedegolf/embedded-workshop
[INFO] finished tweaking git repo https://github.com/tweedegolf/embedded-workshop
[INFO] tweaked toml for git repo https://github.com/tweedegolf/embedded-workshop written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/tweedegolf/embedded-workshop already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded heapless v0.6.1
[INFO] [stderr]   Downloaded rtic-core v0.3.1
[INFO] [stderr]   Downloaded accelerometer v0.12.0
[INFO] [stderr]   Downloaded rtic-syntax v0.4.0
[INFO] [stderr]   Downloaded cortex-m-rtic v0.5.6
[INFO] [stderr]   Downloaded micromath v1.1.1
[INFO] [stderr]   Downloaded cortex-m-rt v0.6.13
[INFO] [stderr]   Downloaded defmt-parser v0.2.0
[INFO] [stderr]   Downloaded lis3dh v0.3.0
[INFO] [stderr]   Downloaded cortex-m-rtic-macros v0.5.2
[INFO] [stderr]   Downloaded defmt-macros v0.2.0
[INFO] [stderr]   Downloaded display-interface v0.4.0
[INFO] [stderr]   Downloaded ssd1306 v0.5.2
[INFO] [stderr]   Downloaded fixed v1.7.0
[INFO] [stderr]   Downloaded panic-probe v0.2.0
[INFO] [stderr]   Downloaded display-interface-i2c v0.4.0
[INFO] [stderr]   Downloaded defmt-rtt v0.2.0
[INFO] [stderr]   Downloaded defmt v0.2.1
[INFO] [stderr]   Downloaded display-interface-spi v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2d24385f55dab7221debdbfa6949b3dd980823720c4dad4b42c30365c1feeb2f
[INFO] running `Command { std: "docker" "start" "-a" "2d24385f55dab7221debdbfa6949b3dd980823720c4dad4b42c30365c1feeb2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d24385f55dab7221debdbfa6949b3dd980823720c4dad4b42c30365c1feeb2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d24385f55dab7221debdbfa6949b3dd980823720c4dad4b42c30365c1feeb2f", kill_on_drop: false }`
[INFO] [stdout] 2d24385f55dab7221debdbfa6949b3dd980823720c4dad4b42c30365c1feeb2f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4881d8ee008e401437565b033467d9b4eea62887207c17cbe4fca101abc39c3c
[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" "4881d8ee008e401437565b033467d9b4eea62887207c17cbe4fca101abc39c3c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]    Compiling cortex-m v0.6.7
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]    Compiling cortex-m-rt v0.6.13
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling nrf52840-pac v0.9.0
[INFO] [stderr]    Compiling fixed v1.7.0
[INFO] [stderr]    Compiling defmt-parser v0.2.0
[INFO] [stderr]     Checking display-interface v0.4.0
[INFO] [stderr]     Checking half v1.7.1
[INFO] [stderr]    Compiling nrf-hal-common v0.12.1
[INFO] [stderr]    Compiling nrf52840-hal v0.12.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling panic-probe v0.2.0
[INFO] [stderr]     Checking byte-slice-cast v0.3.5
[INFO] [stderr]    Compiling lis3dh v0.3.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling heapless v0.6.1
[INFO] [stderr]     Checking rtic-core v0.3.1
[INFO] [stderr]    Compiling cortex-m v0.7.2
[INFO] [stderr]    Compiling cortex-m-rtic v0.5.6
[INFO] [stderr]     Checking volatile-register v0.2.0
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking embedded-dma v0.1.2
[INFO] [stderr]     Checking embedded-graphics v0.6.2
[INFO] [stderr]     Checking hash32 v0.1.1
[INFO] [stderr]     Checking typenum v1.13.0
[INFO] [stderr]     Checking az v1.1.1
[INFO] [stderr]    Compiling defmt v0.2.1
[INFO] [stderr]     Checking bare-metal v0.2.5
[INFO] [stderr]     Checking cast v0.2.3
[INFO] [stderr]     Checking embedded-hal v0.2.4
[INFO] [stderr]     Checking display-interface-i2c v0.4.0
[INFO] [stderr]     Checking display-interface-spi v0.4.0
[INFO] [stderr]     Checking generic-array v0.14.4
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking generic-array v0.13.3
[INFO] [stderr]     Checking as-slice v0.1.5
[INFO] [stderr]     Checking micromath v1.1.1
[INFO] [stderr]     Checking ssd1306 v0.5.2
[INFO] [stderr]     Checking accelerometer v0.12.0
[INFO] [stderr]     Checking aligned v0.3.4
[INFO] [stderr]    Compiling rtic-syntax v0.4.0
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.8
[INFO] [stderr]    Compiling defmt-macros v0.2.0
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling num_enum_derive v0.5.1
[INFO] [stderr]    Compiling cortex-m-rtic-macros v0.5.2
[INFO] [stderr]     Checking defmt-rtt v0.2.0
[INFO] [stderr]     Checking num_enum v0.5.1
[INFO] [stderr]     Checking examples v0.1.0 (/opt/rustwide/workdir/lectures)
[INFO] [stderr]     Checking assignments v0.1.0 (/opt/rustwide/workdir/assignments)
[INFO] [stderr]  Documenting assignments v0.1.0 (/opt/rustwide/workdir/assignments)
[INFO] [stderr]  Documenting examples v0.1.0 (/opt/rustwide/workdir/lectures)
[INFO] [stdout] warning: unused import: `nrf52840_hal as hal`
[INFO] [stdout]  --> assignments/src/lib.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use nrf52840_hal as hal; // memory layout
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `examples`
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> lectures/src/bin/gdb_demo.rs:43:1
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn panic(_ef: &PanicInfo) -> ! {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the lang item is first defined in crate `std`.
[INFO] [stdout]    = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-197d933f09d9a590.rlib
[INFO] [stdout]    = note: second definition in the local crate (`gdb_demo`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] Caused by:
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name gdb_demo lectures/src/bin/gdb_demo.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="defmt-default"' --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern cortex_m=/opt/rustwide/target/debug/deps/libcortex_m-0cdb0b9a2672c031.rmeta --extern cortex_m_rt=/opt/rustwide/target/debug/deps/libcortex_m_rt-eba3cbfce42b4920.rmeta --extern rtic=/opt/rustwide/target/debug/deps/librtic-cdf742518ae160cf.rmeta --extern defmt=/opt/rustwide/target/debug/deps/libdefmt-14e6f99bba0eccd8.rmeta --extern defmt_rtt=/opt/rustwide/target/debug/deps/libdefmt_rtt-d303f6bbbea35507.rmeta --extern embedded_hal=/opt/rustwide/target/debug/deps/libembedded_hal-fca3b87c84d3bbe1.rmeta --extern examples=/opt/rustwide/target/debug/deps/libexamples-5b17f3e29b009c23.rmeta --extern lis3dh=/opt/rustwide/target/debug/deps/liblis3dh-b3b86d14904ce869.rmeta --extern nrf52840_hal=/opt/rustwide/target/debug/deps/libnrf52840_hal-aa2d0ee2705ee9fb.rmeta --extern panic_probe=/opt/rustwide/target/debug/deps/libpanic_probe-24a4099466342227.rmeta --extern ssd1306=/opt/rustwide/target/debug/deps/libssd1306-ab7ba8e4b7af0e8c.rmeta --extern void=/opt/rustwide/target/debug/deps/libvoid-cb0463d7e0a202f8.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> lectures/src/bin/minimal_rtic.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn panic(_ef: &PanicInfo) -> ! {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the lang item is first defined in crate `std`.
[INFO] [stdout]    = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-197d933f09d9a590.rlib
[INFO] [stdout]    = note: second definition in the local crate (`minimal_rtic`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> lectures/src/bin/pac_init_example.rs:49:1
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn panic(_ef: &PanicInfo) -> ! {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the lang item is first defined in crate `std`.
[INFO] [stdout]    = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-197d933f09d9a590.rlib
[INFO] [stdout]    = note: second definition in the local crate (`pac_init_example`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> lectures/src/bin/hal_pac_structure.rs:41:1
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn panic(_ef: &PanicInfo) -> ! {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the lang item is first defined in crate `std`.
[INFO] [stdout]    = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-197d933f09d9a590.rlib
[INFO] [stdout]    = note: second definition in the local crate (`hal_pac_structure`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `rtic::cyccnt`
[INFO] [stdout]    --> lectures/src/bin/rtic_example.rs:139:19
[INFO] [stdout]     |
[INFO] [stdout] 139 |         use rtic::cyccnt::U32Ext;
[INFO] [stdout]     |                   ^^^^^^ could not find `cyccnt` in `rtic`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `cyccnt` in `rtic`
[INFO] [stdout]   --> lectures/src/bin/rtic_example.rs:23:21
[INFO] [stdout]    |
[INFO] [stdout] 23 |     monotonic=rtic::cyccnt::CYCCNT
[INFO] [stdout]    |                     ^^^^^^ could not find `cyccnt` in `rtic`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> lectures/src/bin/minimal_structure.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn panic(_ef: &PanicInfo) -> ! {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the lang item is first defined in crate `std`.
[INFO] [stdout]    = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-197d933f09d9a590.rlib
[INFO] [stdout]    = note: second definition in the local crate (`minimal_structure`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "4881d8ee008e401437565b033467d9b4eea62887207c17cbe4fca101abc39c3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4881d8ee008e401437565b033467d9b4eea62887207c17cbe4fca101abc39c3c", kill_on_drop: false }`
[INFO] [stdout] 4881d8ee008e401437565b033467d9b4eea62887207c17cbe4fca101abc39c3c
