[INFO] cloning repository https://github.com/Rust-Mikrocontroller-Praktikum-2018/mp-pong-stm32f7
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Rust-Mikrocontroller-Praktikum-2018/mp-pong-stm32f7" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRust-Mikrocontroller-Praktikum-2018%2Fmp-pong-stm32f7", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRust-Mikrocontroller-Praktikum-2018%2Fmp-pong-stm32f7'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2a4c732f3bbc874c29ac9572c40c0972b9395b11
[INFO] checking Rust-Mikrocontroller-Praktikum-2018/mp-pong-stm32f7 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRust-Mikrocontroller-Praktikum-2018%2Fmp-pong-stm32f7" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Rust-Mikrocontroller-Praktikum-2018/mp-pong-stm32f7 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6/source/.cargo/config
[INFO] started tweaking git repo https://github.com/Rust-Mikrocontroller-Praktikum-2018/mp-pong-stm32f7
[INFO] finished tweaking git repo https://github.com/Rust-Mikrocontroller-Praktikum-2018/mp-pong-stm32f7
[INFO] tweaked toml for git repo https://github.com/Rust-Mikrocontroller-Praktikum-2018/mp-pong-stm32f7 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Rust-Mikrocontroller-Praktikum-2018/mp-pong-stm32f7 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f316282fd59648625b28c08f3549f7324d1945d890f66c84106e0a491122442e
[INFO] running `Command { std: "docker" "start" "-a" "f316282fd59648625b28c08f3549f7324d1945d890f66c84106e0a491122442e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f316282fd59648625b28c08f3549f7324d1945d890f66c84106e0a491122442e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f316282fd59648625b28c08f3549f7324d1945d890f66c84106e0a491122442e", kill_on_drop: false }`
[INFO] [stdout] f316282fd59648625b28c08f3549f7324d1945d890f66c84106e0a491122442e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a1ed5f71e722c8583784ab5bb9dd962819b8c9e238fcae0caec1e8cd385d2bd
[INFO] running `Command { std: "docker" "start" "-a" "0a1ed5f71e722c8583784ab5bb9dd962819b8c9e238fcae0caec1e8cd385d2bd", kill_on_drop: false }`
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]     Checking odds v0.2.26
[INFO] [stderr]     Checking byteorder v1.2.2
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking volatile v0.2.3
[INFO] [stderr]     Checking volatile-register v0.1.2
[INFO] [stderr]     Checking bit_field v0.4.0
[INFO] [stderr]     Checking spin v0.4.7
[INFO] [stderr]     Checking bit_field v0.6.1
[INFO] [stderr]     Checking managed v0.5.1
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking once v0.3.3
[INFO] [stderr]     Checking r0 v0.1.0
[INFO] [stderr]     Checking bit_field v0.7.0
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/bit_field-0.4.0/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_fn)]
[INFO] [stdout]   |            ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `alloc::btree_map`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/managed-0.5.1/src/map.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | use alloc::btree_map::BTreeMap;
[INFO] [stdout]   |            ^^^^^^^^^ could not find `btree_map` in `alloc`
[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 E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bit_field` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.7/src/lib.rs:8:43
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
[INFO] [stdout]   |                                           ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: the legacy LLVM-style asm! syntax is no longer supported
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.7/src/util.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 |     unsafe { asm!("pause" :::: "volatile"); }
[INFO] [stdout]   |              ----^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |              |
[INFO] [stdout]   |              help: replace with: `llvm_asm!`
[INFO] [stdout]   |
[INFO] [stdout]   = note: consider migrating to the new asm! syntax specified in RFC 2873
[INFO] [stdout]   = note: alternatively, switch to llvm_asm! to keep your code working as it is
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[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 E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "0a1ed5f71e722c8583784ab5bb9dd962819b8c9e238fcae0caec1e8cd385d2bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a1ed5f71e722c8583784ab5bb9dd962819b8c9e238fcae0caec1e8cd385d2bd", kill_on_drop: false }`
[INFO] [stdout] 0a1ed5f71e722c8583784ab5bb9dd962819b8c9e238fcae0caec1e8cd385d2bd