[INFO] fetching crate tle5012 0.1.0...
[INFO] testing tle5012-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate tle5012 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate tle5012 0.1.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4/source/.cargo/config
[INFO] started tweaking crates.io crate tle5012 0.1.0
[INFO] finished tweaking crates.io crate tle5012 0.1.0
[INFO] tweaked toml for crates.io crate tle5012 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 42c7cb1e6dd1eed583a840fb8e4ed6fe0f490a903796b265235c01b57fc0d935
[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" "42c7cb1e6dd1eed583a840fb8e4ed6fe0f490a903796b265235c01b57fc0d935", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42c7cb1e6dd1eed583a840fb8e4ed6fe0f490a903796b265235c01b57fc0d935", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42c7cb1e6dd1eed583a840fb8e4ed6fe0f490a903796b265235c01b57fc0d935", kill_on_drop: false }`
[INFO] [stdout] 42c7cb1e6dd1eed583a840fb8e4ed6fe0f490a903796b265235c01b57fc0d935
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 801b213305734f300fe1d39b9e40b236fd2b80ac4e1e5932e19af8d28ec34048
[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" "801b213305734f300fe1d39b9e40b236fd2b80ac4e1e5932e19af8d28ec34048", kill_on_drop: false }`
[INFO] [stderr]    Compiling nb v1.0.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling embedded-hal v0.2.4
[INFO] [stderr]    Compiling tle5012 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:298:9
[INFO] [stdout]     |
[INFO] [stdout] 298 | /         (if tmp & CHECK_BIT_14 != 0 {
[INFO] [stdout] 299 | |             tmp.wrapping_sub(CHANGE_UINT_TO_INT_15)
[INFO] [stdout] 300 | |         } else {
[INFO] [stdout] 301 | |             tmp
[INFO] [stdout] 302 | |         } as i16)
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 298 |         if tmp & CHECK_BIT_14 != 0 {
[INFO] [stdout] 299 |             tmp.wrapping_sub(CHANGE_UINT_TO_INT_15)
[INFO] [stdout] 300 |         } else {
[INFO] [stdout] 301 |             tmp
[INFO] [stdout] 302 |         } as i16
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:308:9
[INFO] [stdout]     |
[INFO] [stdout] 308 | /         (if tmp & CHECK_BIT_9 != 0 {
[INFO] [stdout] 309 | |             tmp.wrapping_sub(CHANGE_UNIT_TO_INT_9)
[INFO] [stdout] 310 | |         } else {
[INFO] [stdout] 311 | |             tmp
[INFO] [stdout] 312 | |         } as i16)
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 308 |         if tmp & CHECK_BIT_9 != 0 {
[INFO] [stdout] 309 |             tmp.wrapping_sub(CHANGE_UNIT_TO_INT_9)
[INFO] [stdout] 310 |         } else {
[INFO] [stdout] 311 |             tmp
[INFO] [stdout] 312 |         } as i16
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.79s
[INFO] running `Command { std: "docker" "inspect" "801b213305734f300fe1d39b9e40b236fd2b80ac4e1e5932e19af8d28ec34048", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "801b213305734f300fe1d39b9e40b236fd2b80ac4e1e5932e19af8d28ec34048", kill_on_drop: false }`
[INFO] [stdout] 801b213305734f300fe1d39b9e40b236fd2b80ac4e1e5932e19af8d28ec34048
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", 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] d2943abc3d1b741e02460c234fe99d2a4637d7237be5ab9f103693cbe43d39de
[INFO] running `Command { std: "docker" "start" "-a" "d2943abc3d1b741e02460c234fe99d2a4637d7237be5ab9f103693cbe43d39de", kill_on_drop: false }`
[INFO] [stderr]    Compiling cortex-m v0.6.4
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling bitfield v0.13.2
[INFO] [stderr]    Compiling cortex-m-rt v0.6.13
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.7
[INFO] [stderr]    Compiling r0 v0.2.2
[INFO] [stderr]    Compiling stm32f7 v0.7.1
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling serialio v0.1.2
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:298:9
[INFO] [stdout]     |
[INFO] [stdout] 298 | /         (if tmp & CHECK_BIT_14 != 0 {
[INFO] [stdout] 299 | |             tmp.wrapping_sub(CHANGE_UINT_TO_INT_15)
[INFO] [stdout] 300 | |         } else {
[INFO] [stdout] 301 | |             tmp
[INFO] [stdout] 302 | |         } as i16)
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 298 |         if tmp & CHECK_BIT_14 != 0 {
[INFO] [stdout] 299 |             tmp.wrapping_sub(CHANGE_UINT_TO_INT_15)
[INFO] [stdout] 300 |         } else {
[INFO] [stdout] 301 |             tmp
[INFO] [stdout] 302 |         } as i16
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:308:9
[INFO] [stdout]     |
[INFO] [stdout] 308 | /         (if tmp & CHECK_BIT_9 != 0 {
[INFO] [stdout] 309 | |             tmp.wrapping_sub(CHANGE_UNIT_TO_INT_9)
[INFO] [stdout] 310 | |         } else {
[INFO] [stdout] 311 | |             tmp
[INFO] [stdout] 312 | |         } as i16)
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 308 |         if tmp & CHECK_BIT_9 != 0 {
[INFO] [stdout] 309 |             tmp.wrapping_sub(CHANGE_UNIT_TO_INT_9)
[INFO] [stdout] 310 |         } else {
[INFO] [stdout] 311 |             tmp
[INFO] [stdout] 312 |         } as i16
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling volatile-register v0.2.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling generic-array v0.13.2
[INFO] [stderr]    Compiling as-slice v0.1.4
[INFO] [stderr]    Compiling aligned v0.3.4
[INFO] [stderr]    Compiling panic-semihosting v0.5.6
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.8
[INFO] [stderr]    Compiling stm32f7x7-hal v0.2.1
[INFO] [stderr] error: could not compile `stm32f7`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name stm32f7 --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stm32f7-0.7.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C codegen-units=1 -C debuginfo=2 --cfg 'feature="cortex-m-rt"' --cfg 'feature="default"' --cfg 'feature="rt"' --cfg 'feature="stm32f7x7"' -C metadata=699dcc7e11ac4412 -C extra-filename=-699dcc7e11ac4412 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bare_metal=/opt/rustwide/target/debug/deps/libbare_metal-21103d694c75fcb4.rmeta --extern cortex_m=/opt/rustwide/target/debug/deps/libcortex_m-6675a8bc437c569c.rmeta --extern cortex_m_rt=/opt/rustwide/target/debug/deps/libcortex_m_rt-2d1e71a684095af1.rmeta --extern vcell=/opt/rustwide/target/debug/deps/libvcell-e12af6426719a4ed.rmeta --cap-lints allow --cap-lints=warn -L /opt/rustwide/target/debug/build/stm32f7-ffb8a49b588cc39e/out -L /opt/rustwide/target/debug/build/cortex-m-rt-2cb5b4ba3a1ac431/out` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d2943abc3d1b741e02460c234fe99d2a4637d7237be5ab9f103693cbe43d39de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2943abc3d1b741e02460c234fe99d2a4637d7237be5ab9f103693cbe43d39de", kill_on_drop: false }`
[INFO] [stdout] d2943abc3d1b741e02460c234fe99d2a4637d7237be5ab9f103693cbe43d39de