[INFO] fetching crate mkw41z 0.1.2...
[INFO] building mkw41z-0.1.2 against try#d5c88c22807925c189328ef9d923c5d2b11a95b8+rustflags=-Zprofile-closures for pr-87066-3
[INFO] extracting crate mkw41z 0.1.2 into /workspace/builds/worker-99/source
[INFO] validating manifest of crates.io crate mkw41z 0.1.2 on toolchain d5c88c22807925c189328ef9d923c5d2b11a95b8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-99/source/.cargo/config
[INFO] started tweaking crates.io crate mkw41z 0.1.2
[INFO] finished tweaking crates.io crate mkw41z 0.1.2
[INFO] tweaked toml for crates.io crate mkw41z 0.1.2 written to /workspace/builds/worker-99/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded aligned v0.1.2
[INFO] [stderr]   Downloaded cortex-m v0.4.3
[INFO] [stderr]   Downloaded bare-metal v0.1.3
[INFO] [stderr]   Downloaded cortex-m-rt v0.4.0
[INFO] [stderr]   Downloaded cortex-m v0.3.1
[INFO] [stderr]   Downloaded untagged-option v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f52b43c9511b61d17c210073ef25f2dcf0aa9a1394cb2e195aa95553758c97a
[INFO] running `Command { std: "docker" "start" "-a" "6f52b43c9511b61d17c210073ef25f2dcf0aa9a1394cb2e195aa95553758c97a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f52b43c9511b61d17c210073ef25f2dcf0aa9a1394cb2e195aa95553758c97a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f52b43c9511b61d17c210073ef25f2dcf0aa9a1394cb2e195aa95553758c97a", kill_on_drop: false }`
[INFO] [stdout] 6f52b43c9511b61d17c210073ef25f2dcf0aa9a1394cb2e195aa95553758c97a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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 -Zprofile-closures" "-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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c3aa8d2ac82fea186ff56010892ba45292af7d9f81f7a680899296dd73b5b510
[INFO] running `Command { std: "docker" "start" "-a" "c3aa8d2ac82fea186ff56010892ba45292af7d9f81f7a680899296dd73b5b510", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] SG_CR_Eslkdjf: semver_parser, (fb0a09b838ab64eb, 708c1c6201806c7c), 8, 8
[INFO] [stderr] SG_CR_Eslkdjf: semver_parser, (cc99da52b9402d6f, cf5dfa5bab3bd781), 16, 24
[INFO] [stderr] SG_CR_Eslkdjf: semver_parser, (9133cfdae8aba24c, d868577b47e80353), 8, 8
[INFO] [stderr] SG_CR_Eslkdjf: semver_parser, (9e0004aaedce54fc, 8d54175b42856907), 8, 8
[INFO] [stderr] SG_CR_Eslkdjf: semver_parser, (a653d8b4e5150b2d, e84108ef656a566a), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: semver_parser, (194360a56e0d482b, b62400b51ccb09c3), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: semver_parser, (40c52217249eeaad, 80a3c59ac05d9d93), 8, 16
[INFO] [stderr] SG_CR_Eslkdjf: semver_parser, (69fca6571e950206, 6b07641fe7ea4f27), 8, 8
[INFO] [stderr] SG_CR_Eslkdjf: semver_parser, (139f7d9b03d69558, e510202e9369ff94), 16, 24
[INFO] [stderr] SG_CR_Eslkdjf: semver_parser, (db402430aa1b54ea, 8d3b49c20e7679f0), 8, 8
[INFO] [stderr] SG_CR_Eslkdjf: semver_parser, (170ed510eda2f291, 59751b52b70e28d9), 0, 0
[INFO] [stderr]    Compiling cortex-m v0.4.3
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling bare-metal v0.1.3
[INFO] [stderr]    Compiling untagged-option v0.1.1
[INFO] [stderr]    Compiling aligned v0.1.2
[INFO] [stderr] SG_CR_Eslkdjf: semver, (52af47bef5d03cae, 633f068a423b6104), 8, 8
[INFO] [stderr] SG_CR_Eslkdjf: semver, (77cf8ab1e3d0c18b, bd6c1cf3e1433c8), 8, 8
[INFO] [stderr] SG_CR_Eslkdjf: rustc_version, (755dba5556f225b, 7081684834645799), 0, 0
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/bare-metal-0.1.3/src/lib.rs:5:43
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![cfg_attr(feature = "const-fn", 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[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/untagged-option-0.1.1/src/lib.rs:5:29
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(untagged_unions, 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[E0557]: feature has been removed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/aligned-0.1.2/src/lib.rs:32:43
[INFO] [stdout]    |
[INFO] [stdout] 32 | #![cfg_attr(feature = "const-fn", 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[E0740]: unions may not contain fields that need dropping
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/untagged-option-0.1.1/src/lib.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub some: T,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `std::mem::ManuallyDrop` can be used to wrap the type
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/untagged-option-0.1.1/src/lib.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub some: T,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0557, E0740.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling volatile-register v0.2.1
[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 `untagged-option` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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: build failed
[INFO] running `Command { std: "docker" "inspect" "c3aa8d2ac82fea186ff56010892ba45292af7d9f81f7a680899296dd73b5b510", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3aa8d2ac82fea186ff56010892ba45292af7d9f81f7a680899296dd73b5b510", kill_on_drop: false }`
[INFO] [stdout] c3aa8d2ac82fea186ff56010892ba45292af7d9f81f7a680899296dd73b5b510