[INFO] fetching crate nucleo-h7xx 0.1.1...
[INFO] checking nucleo-h7xx-0.1.1 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] extracting crate nucleo-h7xx 0.1.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate nucleo-h7xx 0.1.1 on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7/source/.cargo/config.toml
[INFO] started tweaking crates.io crate nucleo-h7xx 0.1.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate nucleo-h7xx 0.1.1
[INFO] tweaked toml for crates.io crate nucleo-h7xx 0.1.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate nucleo-h7xx 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded managed v0.7.2
[INFO] [stderr]   Downloaded cortex-m v0.6.7
[INFO] [stderr]   Downloaded cortex-m-semihosting v0.3.7
[INFO] [stderr]   Downloaded panic-semihosting v0.5.6
[INFO] [stderr]   Downloaded cortex-m-log v0.7.0
[INFO] [stderr]   Downloaded embedded-hal v0.2.4
[INFO] [stderr]   Downloaded panic-itm v0.4.2
[INFO] [stderr]   Downloaded embedded-timeout-macros v0.3.0
[INFO] [stderr]   Downloaded bare-metal v1.0.0
[INFO] [stderr]   Downloaded rtt-target v0.2.2
[INFO] [stderr]   Downloaded embedded-dma v0.1.2
[INFO] [stderr]   Downloaded stm32h7xx-hal v0.9.0
[INFO] [stderr]   Downloaded panic-rtt-target v0.1.1
[INFO] [stderr]   Downloaded cortex-m v0.7.2
[INFO] [stderr]   Downloaded cortex-m-rt v0.6.13
[INFO] [stderr]   Downloaded vcell v0.1.3
[INFO] [stderr]   Downloaded stm32h7 v0.13.0
[INFO] [stderr]   Downloaded ufmt-write v0.1.0
[INFO] [stderr]   Downloaded smoltcp v0.7.1
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "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] 005269451ef3cf28992dedd0651348b1e2e24429c1216b32b5ba3065267ff160
[INFO] running `Command { std: "docker" "start" "-a" "005269451ef3cf28992dedd0651348b1e2e24429c1216b32b5ba3065267ff160", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "005269451ef3cf28992dedd0651348b1e2e24429c1216b32b5ba3065267ff160", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "005269451ef3cf28992dedd0651348b1e2e24429c1216b32b5ba3065267ff160", kill_on_drop: false }`
[INFO] [stdout] 005269451ef3cf28992dedd0651348b1e2e24429c1216b32b5ba3065267ff160
[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=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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 578617d3167dbc47447282a62cd3c45a79732be0ba0cfaaae98e9920671e550b
[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" "578617d3167dbc47447282a62cd3c45a79732be0ba0cfaaae98e9920671e550b", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling cortex-m v0.7.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.67
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.7
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling cortex-m v0.6.7
[INFO] [stderr]    Compiling stm32h7 v0.13.0
[INFO] [stderr]     Checking managed v0.7.2
[INFO] [stderr]    Compiling cortex-m-log v0.7.0
[INFO] [stderr]     Checking bare-metal v1.0.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ufmt-write v0.1.0
[INFO] [stderr]    Compiling nucleo-h7xx v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking embedded-dma v0.1.2
[INFO] [stderr]     Checking volatile-register v0.2.0
[INFO] [stderr]     Checking hash32 v0.1.1
[INFO] [stderr]     Checking embedded-hal v0.2.4
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking embedded-timeout-macros v0.3.0
[INFO] [stderr]     Checking smoltcp v0.7.1
[INFO] [stderr]    Compiling generic-array v0.14.4
[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 quote v1.0.9
[INFO] [stderr]     Checking panic-itm v0.4.2
[INFO] [stderr]     Checking panic-semihosting v0.5.6
[INFO] [stderr]     Checking generic-array v0.13.3
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking as-slice v0.1.5
[INFO] [stderr]     Checking aligned v0.3.4
[INFO] [stderr]     Checking heapless v0.6.1
[INFO] [stderr]     Checking rtt-target v0.2.2
[INFO] [stderr]     Checking panic-rtt-target v0.1.1
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.8
[INFO] [stderr]     Checking cortex-m-rt v0.6.13
[INFO] [stderr]     Checking stm32h7xx-hal v0.9.0
[INFO] [stdout] error[E0512]: cannot transmute between types of different sizes, or dependently-sized types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stm32h7xx-hal-0.9.0/src/rng.rs:110:67
[INFO] [stdout]     |
[INFO] [stdout] 110 |                         let bytes: [$type; BATCH_SIZE] = unsafe { mem::transmute(random_word) };
[INFO] [stdout]     |                                                                   ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 126 | rng_core!(usize);
[INFO] [stdout]     | ----------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: source type: `u32` (32 bits)
[INFO] [stdout]     = note: target type: `[usize; 0]` (0 bits)
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[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 E0512`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `stm32h7xx-hal`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "578617d3167dbc47447282a62cd3c45a79732be0ba0cfaaae98e9920671e550b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "578617d3167dbc47447282a62cd3c45a79732be0ba0cfaaae98e9920671e550b", kill_on_drop: false }`
[INFO] [stdout] 578617d3167dbc47447282a62cd3c45a79732be0ba0cfaaae98e9920671e550b