[INFO] fetching crate rak811-at-driver 0.2.0...
[INFO] building rak811-at-driver-0.2.0 against try#8e6760e82a081fb624e777d52ef744c1def2f593 for pr-105577
[INFO] extracting crate rak811-at-driver 0.2.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate rak811-at-driver 0.2.0 on toolchain 8e6760e82a081fb624e777d52ef744c1def2f593
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e6760e82a081fb624e777d52ef744c1def2f593" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate rak811-at-driver 0.2.0
[INFO] finished tweaking crates.io crate rak811-at-driver 0.2.0
[INFO] tweaked toml for crates.io crate rak811-at-driver 0.2.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e6760e82a081fb624e777d52ef744c1def2f593" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e6760e82a081fb624e777d52ef744c1def2f593" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+8e6760e82a081fb624e777d52ef744c1def2f593" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bf03893a8fa5dd8705875bbe177c4debbf53f784332051d01e81d9a89800f7dd
[INFO] running `Command { std: "docker" "start" "-a" "bf03893a8fa5dd8705875bbe177c4debbf53f784332051d01e81d9a89800f7dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf03893a8fa5dd8705875bbe177c4debbf53f784332051d01e81d9a89800f7dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf03893a8fa5dd8705875bbe177c4debbf53f784332051d01e81d9a89800f7dd", kill_on_drop: false }`
[INFO] [stdout] bf03893a8fa5dd8705875bbe177c4debbf53f784332051d01e81d9a89800f7dd
[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" "RUSTDOCFLAGS=--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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+8e6760e82a081fb624e777d52ef744c1def2f593" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d73523eca86b0f288278e3d4ba456a277db81881928d904750d889fa421deb1c
[INFO] running `Command { std: "docker" "start" "-a" "d73523eca86b0f288278e3d4ba456a277db81881928d904750d889fa421deb1c", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling semver v1.0.14
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling nb v1.0.0
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]    Compiling atomic-polyfill v1.0.1
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling critical-section v1.1.1
[INFO] [stderr]    Compiling embassy-sync v0.1.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling embedded-io v0.3.1
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling no-std-net v0.5.0
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr]    Compiling embedded-hal v1.0.0-alpha.9
[INFO] [stderr]    Compiling embedded-io v0.4.0
[INFO] [stderr]    Compiling no-std-net v0.6.0
[INFO] [stderr]    Compiling hash32 v0.2.1
[INFO] [stderr]    Compiling embedded-hal-async v0.2.0-alpha.0
[INFO] [stderr]    Compiling arrayvec v0.6.1
[INFO] [stderr]    Compiling embassy-futures v0.1.0
[INFO] [stderr]    Compiling moveslice v2.0.1
[INFO] [stderr]    Compiling nom v6.2.1
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr] error: failed to run custom build command for `lock_api v0.4.9`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/lock_api-67c6abcf3c0f301d/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Error { kind: Other("could not execute rustc") }', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/autocfg-1.1.0/src/lib.rs:128:20
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x559fdb3a840a - std::backtrace_rs::backtrace::libunwind::trace::h9935aa51e67ff547
[INFO] [stderr]                                  at /rustc/8e6760e82a081fb624e777d52ef744c1def2f593/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stderr]      1:     0x559fdb3a840a - std::backtrace_rs::backtrace::trace_unsynchronized::h22fd361b9bc5c4cb
[INFO] [stderr]                                  at /rustc/8e6760e82a081fb624e777d52ef744c1def2f593/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x559fdb3a840a - std::sys_common::backtrace::_print_fmt::hd12f5ae351cd776c
[INFO] [stderr]                                  at /rustc/8e6760e82a081fb624e777d52ef744c1def2f593/library/std/src/sys_common/backtrace.rs:65:5
[INFO] [stderr]      3:     0x559fdb3a840a - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h41d96e4f233916e4
[INFO] [stderr]                                  at /rustc/8e6760e82a081fb624e777d52ef744c1def2f593/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]      4:     0x559fdb3c5dde - core::fmt::write::h3b7711f30e618cd4
[INFO] [stderr]                                  at /rustc/8e6760e82a081fb624e777d52ef744c1def2f593/library/core/src/fmt/mod.rs:1208:17
[INFO] [stderr]      5:     0x559fdb3a58e9 - std::io::Write::write_fmt::hd0d3dcd309d3cd9f
[INFO] [stderr]                                  at /rustc/8e6760e82a081fb624e777d52ef744c1def2f593/library/std/src/io/mod.rs:1682:15
[INFO] [stderr]      6:     0x559fdb3a81d5 - std::sys_common::backtrace::_print::h162a97c9b16e4aac
[INFO] [stderr]                                  at /rustc/8e6760e82a081fb624e777d52ef744c1def2f593/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]      7:     0x559fdb3a81d5 - std::sys_common::backtrace::print::hfb66d51ea9664dde
[INFO] [stderr]                                  at /rustc/8e6760e82a081fb624e777d52ef744c1def2f593/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]      8:     0x559fdb3a983f - std::panicking::default_hook::{{closure}}::h6b6b85100f7b3d02
[INFO] [stderr]                                  at /rustc/8e6760e82a081fb624e777d52ef744c1def2f593/library/std/src/panicking.rs:267:22
[INFO] [stderr]      9:     0x559fdb3a957b - std::panicking::default_hook::h3e20b5c505006d3e
[INFO] [stderr]                                  at /rustc/8e6760e82a081fb624e777d52ef744c1def2f593/library/std/src/panicking.rs:286:9
[INFO] [stderr]     10:     0x559fdb3a9f4c - std::panicking::rust_panic_with_hook::h9fff36b9d2853e92
[INFO] [stderr]                                  at /rustc/8e6760e82a081fb624e777d52ef744c1def2f593/library/std/src/panicking.rs:688:13
[INFO] [stderr]     11:     0x559fdb3a9ce9 - std::panicking::begin_panic_handler::{{closure}}::h572d99bab01822a3
[INFO] [stderr]                                  at /rustc/8e6760e82a081fb624e777d52ef744c1def2f593/library/std/src/panicking.rs:579:13
[INFO] [stderr]     12:     0x559fdb3a8886 - std::sys_common::backtrace::__rust_end_short_backtrace::hfb125e177e800663
[INFO] [stderr]                                  at /rustc/8e6760e82a081fb624e777d52ef744c1def2f593/library/std/src/sys_common/backtrace.rs:137:18
[INFO] [stderr]     13:     0x559fdb3a99f2 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/8e6760e82a081fb624e777d52ef744c1def2f593/library/std/src/panicking.rs:575:5
[INFO] [stderr]     14:     0x559fdb374193 - core::panicking::panic_fmt::h6fddff0b0c1f7a20
[INFO] [stderr]                                  at /rustc/8e6760e82a081fb624e777d52ef744c1def2f593/library/core/src/panicking.rs:64:14
[INFO] [stderr]     15:     0x559fdb374563 - core::result::unwrap_failed::ha487c1a117624c64
[INFO] [stderr]                                  at /rustc/8e6760e82a081fb624e777d52ef744c1def2f593/library/core/src/result.rs:1791:5
[INFO] [stderr]     16:     0x559fdb38a9d5 - core::result::Result<T,E>::unwrap::h6876552f19c3e161
[INFO] [stderr]                                  at /rustc/8e6760e82a081fb624e777d52ef744c1def2f593/library/core/src/result.rs:1113:23
[INFO] [stderr]     17:     0x559fdb37fa63 - autocfg::new::h132205a01bbb7004
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/autocfg-1.1.0/src/lib.rs:128:5
[INFO] [stderr]     18:     0x559fdb3749ca - build_script_build::main::hd851bf65c438aa89
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lock_api-0.4.9/build.rs:2:15
[INFO] [stderr]     19:     0x559fdb3747cb - core::ops::function::FnOnce::call_once::h4199a48df8d13c95
[INFO] [stderr]                                  at /rustc/8e6760e82a081fb624e777d52ef744c1def2f593/library/core/src/ops/function.rs:507:5
[INFO] [stderr]     20:     0x559fdb37477e - std::sys_common::backtrace::__rust_begin_short_backtrace::ha99fe6fb3d3f5900
[INFO] [stderr]                                  at /rustc/8e6760e82a081fb624e777d52ef744c1def2f593/library/std/src/sys_common/backtrace.rs:121:18
[INFO] [stderr]     21:     0x559fdb374881 - std::rt::lang_start::{{closure}}::h60d413da0e28a038
[INFO] [stderr]                                  at /rustc/8e6760e82a081fb624e777d52ef744c1def2f593/library/std/src/rt.rs:166:18
[INFO] [stderr]     22:     0x559fdb3a29be - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::he228b7d32d45709a
[INFO] [stderr]                                  at /rustc/8e6760e82a081fb624e777d52ef744c1def2f593/library/core/src/ops/function.rs:606:13
[INFO] [stderr]     23:     0x559fdb3a29be - std::panicking::try::do_call::h2a7269b12a63177b
[INFO] [stderr]                                  at /rustc/8e6760e82a081fb624e777d52ef744c1def2f593/library/std/src/panicking.rs:483:40
[INFO] [stderr]     24:     0x559fdb3a29be - std::panicking::try::hf00014375163b180
[INFO] [stderr]                                  at /rustc/8e6760e82a081fb624e777d52ef744c1def2f593/library/std/src/panicking.rs:447:19
[INFO] [stderr]     25:     0x559fdb3a29be - std::panic::catch_unwind::h892b361a9e55fd3c
[INFO] [stderr]                                  at /rustc/8e6760e82a081fb624e777d52ef744c1def2f593/library/std/src/panic.rs:137:14
[INFO] [stderr]     26:     0x559fdb3a29be - std::rt::lang_start_internal::{{closure}}::h1c4356d52f9de60c
[INFO] [stderr]                                  at /rustc/8e6760e82a081fb624e777d52ef744c1def2f593/library/std/src/rt.rs:148:48
[INFO] [stderr]     27:     0x559fdb3a29be - std::panicking::try::do_call::h34037420ee4bf531
[INFO] [stderr]                                  at /rustc/8e6760e82a081fb624e777d52ef744c1def2f593/library/std/src/panicking.rs:483:40
[INFO] [stderr]     28:     0x559fdb3a29be - std::panicking::try::h07d8a6a2ff788d0d
[INFO] [stderr]                                  at /rustc/8e6760e82a081fb624e777d52ef744c1def2f593/library/std/src/panicking.rs:447:19
[INFO] [stderr]     29:     0x559fdb3a29be - std::panic::catch_unwind::h5542efb545530f09
[INFO] [stderr]                                  at /rustc/8e6760e82a081fb624e777d52ef744c1def2f593/library/std/src/panic.rs:137:14
[INFO] [stderr]     30:     0x559fdb3a29be - std::rt::lang_start_internal::h0e15a504169d0674
[INFO] [stderr]                                  at /rustc/8e6760e82a081fb624e777d52ef744c1def2f593/library/std/src/rt.rs:148:20
[INFO] [stderr]     31:     0x559fdb37485a - std::rt::lang_start::h6df8a6136e89ccb2
[INFO] [stderr]                                  at /rustc/8e6760e82a081fb624e777d52ef744c1def2f593/library/std/src/rt.rs:165:17
[INFO] [stderr]     32:     0x559fdb374aae - main
[INFO] [stderr]     33:     0x7fed44261083 - __libc_start_main
[INFO] [stderr]     34:     0x559fdb3746ae - _start
[INFO] [stderr]     35:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d73523eca86b0f288278e3d4ba456a277db81881928d904750d889fa421deb1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d73523eca86b0f288278e3d4ba456a277db81881928d904750d889fa421deb1c", kill_on_drop: false }`
[INFO] [stdout] d73523eca86b0f288278e3d4ba456a277db81881928d904750d889fa421deb1c