[INFO] fetching crate nrf52840-platform 0.1.2...
[INFO] testing nrf52840-platform-0.1.2 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate nrf52840-platform 0.1.2 into /workspace/builds/worker-94/source
[INFO] validating manifest of crates.io crate nrf52840-platform 0.1.2 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] started tweaking crates.io crate nrf52840-platform 0.1.2
[INFO] finished tweaking crates.io crate nrf52840-platform 0.1.2
[INFO] tweaked toml for crates.io crate nrf52840-platform 0.1.2 written to /workspace/builds/worker-94/source/Cargo.toml
[INFO] crate crates.io crate nrf52840-platform 0.1.2 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]     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 cortex-m-rt-macros v0.1.7
[INFO] [stderr]   Downloaded cortex-m-rt v0.6.11
[INFO] [stderr]   Downloaded nrf52-hal-common v0.8.1
[INFO] [stderr]   Downloaded nrf52840-pac v0.8.0
[INFO] [stderr]   Downloaded core-futures-tls v0.1.1
[INFO] [stderr]   Downloaded nrf52840-hal v0.8.1
[INFO] [stderr]   Downloaded embedded-platform v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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] [stdout] 169283591b424b69720ebbd23982f876eaf9e2a7cdda479bd3891ac928fed34f
[INFO] running `Command { std: "docker" "start" "-a" "169283591b424b69720ebbd23982f876eaf9e2a7cdda479bd3891ac928fed34f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "169283591b424b69720ebbd23982f876eaf9e2a7cdda479bd3891ac928fed34f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "169283591b424b69720ebbd23982f876eaf9e2a7cdda479bd3891ac928fed34f", kill_on_drop: false }`
[INFO] [stdout] 169283591b424b69720ebbd23982f876eaf9e2a7cdda479bd3891ac928fed34f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f760b1986bb55347c36904a60414270bed30abe9ca5d7889858cc0eb6d249af7
[INFO] running `Command { std: "docker" "start" "-a" "f760b1986bb55347c36904a60414270bed30abe9ca5d7889858cc0eb6d249af7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.7
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling cortex-m v0.6.1
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
[INFO] [stderr]    Compiling cortex-m-rt v0.6.11
[INFO] [stderr]    Compiling vcell v0.1.2
[INFO] [stderr]    Compiling futures-sink v0.3.1
[INFO] [stderr]    Compiling r0 v0.2.2
[INFO] [stderr]    Compiling nrf52840-pac v0.8.0
[INFO] [stderr]    Compiling futures-core v0.3.1
[INFO] [stderr]    Compiling fpa v0.1.0
[INFO] [stderr]    Compiling nb v0.1.2
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling pin-utils v0.1.0-alpha.4
[INFO] [stderr]    Compiling futures-task v0.3.1
[INFO] [stderr]    Compiling futures-io v0.3.1
[INFO] [stderr]    Compiling nrf52840-hal v0.8.1
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling volatile-register v0.2.0
[INFO] [stderr]    Compiling futures-channel v0.3.1
[INFO] [stderr]    Compiling embedded-hal v0.2.3
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling generic-array v0.13.2
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling as-slice v0.1.2
[INFO] [stderr]    Compiling aligned v0.3.2
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.7
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling futures-macro v0.3.1
[INFO] [stderr]    Compiling futures-util v0.3.1
[INFO] [stderr]    Compiling futures v0.3.1
[INFO] [stderr]    Compiling embedded-platform v0.1.1
[INFO] [stderr]    Compiling nrf52-hal-common v0.8.1
[INFO] [stderr]    Compiling nrf52840-platform v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `cx`
[INFO] [stdout]   --> src/i2c.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         cx: &mut task::Context<'_>,
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_cx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sda`
[INFO] [stdout]   --> src/i2c.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         sda: &mut gpio::Pin<p0::P0_26<hal_gpio::Input<hal_gpio::Floating>>>,
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_sda`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scl`
[INFO] [stdout]   --> src/i2c.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |         scl: &mut gpio::Pin<p0::P0_27<hal_gpio::Input<hal_gpio::Floating>>>,
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_scl`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cx`
[INFO] [stdout]   --> src/i2c.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |         cx: &mut task::Context<'_>,
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_cx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]   --> src/i2c.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         addr: u8,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cx`
[INFO] [stdout]   --> src/i2c.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         cx: &mut task::Context<'_>,
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_cx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buffer`
[INFO] [stdout]   --> src/i2c.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |         buffer: &mut [u8],
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cx`
[INFO] [stdout]   --> src/i2c.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |         cx: &mut task::Context<'_>,
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_cx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]   --> src/i2c.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |         addr: u8,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cx`
[INFO] [stdout]   --> src/i2c.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |         cx: &mut task::Context<'_>,
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_cx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]   --> src/i2c.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |         bytes: &[u8],
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cx`
[INFO] [stdout]   --> src/i2c.rs:97:9
[INFO] [stdout]    |
[INFO] [stdout] 97 |         cx: &mut task::Context<'_>,
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_cx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 52.62s
[INFO] running `Command { std: "docker" "inspect" "f760b1986bb55347c36904a60414270bed30abe9ca5d7889858cc0eb6d249af7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f760b1986bb55347c36904a60414270bed30abe9ca5d7889858cc0eb6d249af7", kill_on_drop: false }`
[INFO] [stdout] f760b1986bb55347c36904a60414270bed30abe9ca5d7889858cc0eb6d249af7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 266fc162c9e22a7c03e23e01dfc73c2b83e3f433827c57e410e290f96a0d89cd
[INFO] running `Command { std: "docker" "start" "-a" "266fc162c9e22a7c03e23e01dfc73c2b83e3f433827c57e410e290f96a0d89cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling core-futures-tls v0.1.1
[INFO] [stderr]    Compiling panic-halt v0.2.0
[INFO] [stdout] warning: unused variable: `cx`
[INFO] [stdout]   --> src/i2c.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         cx: &mut task::Context<'_>,
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_cx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sda`
[INFO] [stdout]   --> src/i2c.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         sda: &mut gpio::Pin<p0::P0_26<hal_gpio::Input<hal_gpio::Floating>>>,
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_sda`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scl`
[INFO] [stdout]   --> src/i2c.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |         scl: &mut gpio::Pin<p0::P0_27<hal_gpio::Input<hal_gpio::Floating>>>,
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_scl`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cx`
[INFO] [stdout]   --> src/i2c.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |         cx: &mut task::Context<'_>,
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_cx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]   --> src/i2c.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         addr: u8,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cx`
[INFO] [stdout]   --> src/i2c.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         cx: &mut task::Context<'_>,
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_cx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buffer`
[INFO] [stdout]   --> src/i2c.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |         buffer: &mut [u8],
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cx`
[INFO] [stdout]   --> src/i2c.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |         cx: &mut task::Context<'_>,
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_cx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]   --> src/i2c.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |         addr: u8,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cx`
[INFO] [stdout]   --> src/i2c.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |         cx: &mut task::Context<'_>,
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_cx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]   --> src/i2c.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |         bytes: &[u8],
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cx`
[INFO] [stdout]   --> src/i2c.rs:97:9
[INFO] [stdout]    |
[INFO] [stdout] 97 |         cx: &mut task::Context<'_>,
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_cx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/core-futures-tls-0.1.1/src/lib.rs:78:43
[INFO] [stdout]    |
[INFO] [stdout] 78 | #![feature(thread_local, generator_trait, optin_builtin_traits)]
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: renamed to `auto_traits`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/core-futures-tls-0.1.1/src/lib.rs:78:1
[INFO] [stdout]    |
[INFO] [stdout] 78 | #![feature(thread_local, generator_trait, optin_builtin_traits)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: negative trait bounds are not yet fully implemented; use marker types for now
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/core-futures-tls-0.1.1/src/future.rs:30:32
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl<T: Generator<Yield = ()>> !Unpin for GenFuture<T> {}
[INFO] [stdout]    |                                ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #68318 <https://github.com/rust-lang/rust/issues/68318> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 1 argument but 0 arguments were supplied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/core-futures-tls-0.1.1/src/future.rs:38:43
[INFO] [stdout]     |
[INFO] [stdout] 38  |         set_task_context(cx, || match gen.resume() {
[INFO] [stdout]     |                                           ^^^^^^- supplied 0 arguments
[INFO] [stdout]     |
[INFO] [stdout] note: associated function defined here
[INFO] [stdout] help: expected the unit value `()`; create it with empty parentheses
[INFO] [stdout]     |
[INFO] [stdout] 38  |         set_task_context(cx, || match gen.resume(()) {
[INFO] [stdout]     |                                                  ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `core-futures-tls` due to 5 previous errors
[INFO] [stdout] Some errors have detailed explanations: E0061, E0554, E0557, E0658.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about an error, try `rustc --explain E0061`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "266fc162c9e22a7c03e23e01dfc73c2b83e3f433827c57e410e290f96a0d89cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "266fc162c9e22a7c03e23e01dfc73c2b83e3f433827c57e410e290f96a0d89cd", kill_on_drop: false }`
[INFO] [stdout] 266fc162c9e22a7c03e23e01dfc73c2b83e3f433827c57e410e290f96a0d89cd
