[INFO] fetching crate stm32l0xx-hal 0.8.0...
[INFO] testing stm32l0xx-hal-0.8.0 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate stm32l0xx-hal 0.8.0 into /workspace/builds/worker-48/source
[INFO] validating manifest of crates.io crate stm32l0xx-hal 0.8.0 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-48/source/.cargo/config
[INFO] started tweaking crates.io crate stm32l0xx-hal 0.8.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate stm32l0xx-hal 0.8.0
[INFO] tweaked toml for crates.io crate stm32l0xx-hal 0.8.0 written to /workspace/builds/worker-48/source/Cargo.toml
[INFO] crate crates.io crate stm32l0xx-hal 0.8.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hash32 v0.2.1
[INFO] [stderr]   Downloaded cast v0.2.6
[INFO] [stderr]   Downloaded heapless v0.6.1
[INFO] [stderr]   Downloaded cortex-m v0.7.2
[INFO] [stderr]   Downloaded atomic-polyfill v0.1.2
[INFO] [stderr]   Downloaded as-slice v0.2.1
[INFO] [stderr]   Downloaded rtcc v0.2.1
[INFO] [stderr]   Downloaded cortex-m-rtic v0.5.6
[INFO] [stderr]   Downloaded stm32-usbd v0.6.0
[INFO] [stderr]   Downloaded heapless v0.7.1
[INFO] [stderr]   Downloaded cortex-m-rt v0.6.14
[INFO] [stderr]   Downloaded embedded-hal v0.2.5
[INFO] [stderr]   Downloaded usb-device v0.2.8
[INFO] [stderr]   Downloaded stm32l0 v0.13.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b9db15565f7ac1081e193de35b3609dd938ee88f4be8a6ee2cec59c37dff4afe
[INFO] running `Command { std: "docker" "start" "-a" "b9db15565f7ac1081e193de35b3609dd938ee88f4be8a6ee2cec59c37dff4afe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9db15565f7ac1081e193de35b3609dd938ee88f4be8a6ee2cec59c37dff4afe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9db15565f7ac1081e193de35b3609dd938ee88f4be8a6ee2cec59c37dff4afe", kill_on_drop: false }`
[INFO] [stdout] b9db15565f7ac1081e193de35b3609dd938ee88f4be8a6ee2cec59c37dff4afe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47bda9aecb8b2cb7ad3d1861c2b347ee72efaa33f675599c468c3850a6fd2a7b
[INFO] running `Command { std: "docker" "start" "-a" "47bda9aecb8b2cb7ad3d1861c2b347ee72efaa33f675599c468c3850a6fd2a7b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling cortex-m v0.7.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling nb v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling bitfield v0.13.2
[INFO] [stderr]    Compiling cortex-m-rt v0.6.14
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.7
[INFO] [stderr]    Compiling stm32l0 v0.13.0
[INFO] [stderr]    Compiling stm32l0xx-hal v0.8.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling r0 v0.2.2
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling volatile-register v0.2.0
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling as-slice v0.2.1
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling embedded-hal v0.2.5
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr] error: failed to run custom build command for `stm32l0xx-hal v0.8.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/stm32l0xx-hal-3200b4a7058f6863/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at '
[INFO] [stderr] 
[INFO] [stderr]   Must select exactly one package for linker script generation!
[INFO] [stderr]   Choices: 'stm32l0x1' or 'stm32l0x2' or 'stm32l0x3'
[INFO] [stderr]   Alternatively, pick the mcu-feature that matches your MCU, for example 'mcu-STM32L071KBTx'
[INFO] [stderr] 
[INFO] [stderr]   ', build.rs:26:13
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5589cf61bd2c - std::backtrace_rs::backtrace::libunwind::trace::h7630ba4cba718aa0
[INFO] [stderr]                                  at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stderr]      1:     0x5589cf61bd2c - std::backtrace_rs::backtrace::trace_unsynchronized::he7498e79c157f5ac
[INFO] [stderr]                                  at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x5589cf61bd2c - std::sys_common::backtrace::_print_fmt::hdaebadaee17bca49
[INFO] [stderr]                                  at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x5589cf61bd2c - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h82b0e3aaf8a96140
[INFO] [stderr]                                  at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x5589cf636a6c - core::fmt::write::h72801a82c94e6ff1
[INFO] [stderr]                                  at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/core/src/fmt/mod.rs:1149:17
[INFO] [stderr]      5:     0x5589cf6193d5 - std::io::Write::write_fmt::hc2da38dc44811df8
[INFO] [stderr]                                  at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/io/mod.rs:1697:15
[INFO] [stderr]      6:     0x5589cf61d330 - std::sys_common::backtrace::_print::h1c9a1d19c48821c1
[INFO] [stderr]                                  at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x5589cf61d330 - std::sys_common::backtrace::print::h7ce8802039fa9d0e
[INFO] [stderr]                                  at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x5589cf61d330 - std::panicking::default_hook::{{closure}}::hb2a74a8c1499c326
[INFO] [stderr]                                  at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:211:50
[INFO] [stderr]      9:     0x5589cf61cedb - std::panicking::default_hook::hf4f180b00076f2b2
[INFO] [stderr]                                  at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:228:9
[INFO] [stderr]     10:     0x5589cf61d9e4 - std::panicking::rust_panic_with_hook::he85ce8435493b711
[INFO] [stderr]                                  at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:606:17
[INFO] [stderr]     11:     0x5589cf6010be - std::panicking::begin_panic::{{closure}}::h069cb8ab47a342a2
[INFO] [stderr]                                  at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:526:9
[INFO] [stderr]     12:     0x5589cf600da8 - std::sys_common::backtrace::__rust_end_short_backtrace::h3c9781208d037e8a
[INFO] [stderr]                                  at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/sys_common/backtrace.rs:139:18
[INFO] [stderr]     13:     0x5589cf600fff - std::panicking::begin_panic::h3b34c85f411b30e3
[INFO] [stderr]                                  at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:525:12
[INFO] [stderr]     14:     0x5589cf605e27 - build_script_build::main::h6c95758a581edb8d
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:26:13
[INFO] [stderr]     15:     0x5589cf6057ab - core::ops::function::FnOnce::call_once::h3ecaabbad870abf2
[INFO] [stderr]                                  at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     16:     0x5589cf600dee - std::sys_common::backtrace::__rust_begin_short_backtrace::hedf4eca4f5722f7e
[INFO] [stderr]                                  at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/sys_common/backtrace.rs:123:18
[INFO] [stderr]     17:     0x5589cf605721 - std::rt::lang_start::{{closure}}::hd3c651877ce1bb78
[INFO] [stderr]                                  at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/rt.rs:145:18
[INFO] [stderr]     18:     0x5589cf61b571 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h0e73392810ecd318
[INFO] [stderr]                                  at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     19:     0x5589cf61b571 - std::panicking::try::do_call::h12dcb4a4f352a507
[INFO] [stderr]                                  at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:406:40
[INFO] [stderr]     20:     0x5589cf61b571 - std::panicking::try::h0d978c76ab4a3863
[INFO] [stderr]                                  at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:370:19
[INFO] [stderr]     21:     0x5589cf61b571 - std::panic::catch_unwind::hab40227675186980
[INFO] [stderr]                                  at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panic.rs:133:14
[INFO] [stderr]     22:     0x5589cf61b571 - std::rt::lang_start_internal::{{closure}}::hc34786299e7d2cf7
[INFO] [stderr]                                  at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/rt.rs:128:48
[INFO] [stderr]     23:     0x5589cf61b571 - std::panicking::try::do_call::h38e7a9128f21d387
[INFO] [stderr]                                  at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:406:40
[INFO] [stderr]     24:     0x5589cf61b571 - std::panicking::try::h32d4e72fd8922bce
[INFO] [stderr]                                  at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:370:19
[INFO] [stderr]     25:     0x5589cf61b571 - std::panic::catch_unwind::h9a345671d889d41f
[INFO] [stderr]                                  at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panic.rs:133:14
[INFO] [stderr]     26:     0x5589cf61b571 - std::rt::lang_start_internal::h9e691a4f557eb2a3
[INFO] [stderr]                                  at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/rt.rs:128:20
[INFO] [stderr]     27:     0x5589cf6056f0 - std::rt::lang_start::h7aa3dcfeb1727bae
[INFO] [stderr]                                  at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/rt.rs:144:17
[INFO] [stderr]     28:     0x5589cf606a5c - main
[INFO] [stderr]     29:     0x7f0d009ae0b3 - __libc_start_main
[INFO] [stderr]     30:     0x5589cf5fe64e - _start
[INFO] [stderr]     31:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "47bda9aecb8b2cb7ad3d1861c2b347ee72efaa33f675599c468c3850a6fd2a7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47bda9aecb8b2cb7ad3d1861c2b347ee72efaa33f675599c468c3850a6fd2a7b", kill_on_drop: false }`
[INFO] [stdout] 47bda9aecb8b2cb7ad3d1861c2b347ee72efaa33f675599c468c3850a6fd2a7b