[INFO] updating cached repository SimonSapin/teensy-clock
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/SimonSapin/teensy-clock
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/SimonSapin/teensy-clock" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/SimonSapin/teensy-clock"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/SimonSapin/teensy-clock'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/SimonSapin/teensy-clock" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/SimonSapin/teensy-clock"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/SimonSapin/teensy-clock'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3adc4bdc623f29ebaa48bdf49ecc4b3a9c430372
[INFO] sha for GitHub repo SimonSapin/teensy-clock: 3adc4bdc623f29ebaa48bdf49ecc4b3a9c430372
[INFO] validating manifest of SimonSapin/teensy-clock on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of SimonSapin/teensy-clock on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing SimonSapin/teensy-clock
[INFO] removed path dependency teensy3 from SimonSapin/teensy-clock
[INFO] finished frobbing SimonSapin/teensy-clock
[INFO] frobbed toml for SimonSapin/teensy-clock written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/SimonSapin/teensy-clock/Cargo.toml
[INFO] started frobbing SimonSapin/teensy-clock
[INFO] removed path dependency teensy3 from SimonSapin/teensy-clock
[INFO] finished frobbing SimonSapin/teensy-clock
[INFO] frobbed toml for SimonSapin/teensy-clock written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/SimonSapin/teensy-clock/Cargo.toml
[INFO] crate SimonSapin/teensy-clock already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/SimonSapin/teensy-clock/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking SimonSapin/teensy-clock against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-4/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/SimonSapin/teensy-clock:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 64fe5be77420b27823a216fea9220677b00dde37ffbbfa92d69cb3b26af4f91d
[INFO] running `"docker" "start" "-a" "64fe5be77420b27823a216fea9220677b00dde37ffbbfa92d69cb3b26af4f91d"`
[INFO] [stderr]    Compiling teensy3-sys v0.1.0
[INFO] [stderr]    Compiling gregor v0.3.3
[INFO] [stderr] error[E0463]: can't find crate for `core`
[INFO] [stderr]   |
[INFO] [stderr]   = note: the `thumbv7em-none-eabi` target may not be installed
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error: Could not compile `gregor`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: failed to run custom build command for `teensy3-sys v0.1.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/teensy3-sys-7c488567c77717e3/build-script-build` (exit code: 101)
[INFO] [stderr] --- stdout
[INFO] [stderr] cargo:rustc-link-search=native=/opt/crater/target/thumbv7em-none-eabi/debug/build/teensy3-sys-e91b85f440f15f9a/out
[INFO] [stderr] arm-none-eabi-gcc  -Wall -g -Os -mcpu=cortex-m4 -mthumb -MMD -DF_CPU=48000000 -DUSB_SERIAL -DLAYOUT_US_ENGLISH -DUSING_MAKEFILE -DCORE_TEENSY -D__MK20DX256__ -DARDUINO=10600 -DTEENSYDUINO=121 -I.  -c -o serial3.o serial3.c
[INFO] [stderr] <builtin>: recipe for target 'serial3.o' failed
[INFO] [stderr] 
[INFO] [stderr] --- stderr
[INFO] [stderr] serial3.c:436:1: fatal error: opening dependency file serial3.d: Read-only file system
[INFO] [stderr]  }
[INFO] [stderr]  ^
[INFO] [stderr] compilation terminated.
[INFO] [stderr] make: *** [serial3.o] Error 1
[INFO] [stderr] thread 'main' panicked at 'assertion failed: Command::new("make").args(&["--no-print-directory", "-C", "teensy3-core",
[INFO] [stderr]                             "NO_ARDUINO=1"]).status().expect("failed to build Teensyduino libs").success()', /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/teensy3-sys-0.1.0/build.rs:9:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x557f6f2089eb - backtrace::backtrace::libunwind::trace::h3a6a6e8afb7ff2de
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x557f6f2089eb - backtrace::backtrace::trace_unsynchronized::h2220292c79f07c05
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x557f6f2089eb - std::sys_common::backtrace::_print::h8ff1c2c5cb3b84f7
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x557f6f2089eb - std::sys_common::backtrace::print::h2254c58d69a73304
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x557f6f2089eb - std::panicking::default_hook::{{closure}}::hc21cbd062363cef6
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    5:     0x557f6f2086c6 - std::panicking::default_hook::hfea076cda52c2914
[INFO] [stderr]                                at src/libstd/panicking.rs:214
[INFO] [stderr]    6:     0x557f6f2090ad - std::panicking::rust_panic_with_hook::h746830f9f479e849
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]    7:     0x557f6f1fd4e1 - std::panicking::begin_panic::hfc33c52c5b8dcc5b
[INFO] [stderr]                                at /rustc/266783e4e09e4e9d5307c1c8e695659c58bbcac7/src/libstd/panicking.rs:411
[INFO] [stderr]    8:     0x557f6f1f7e54 - build_script_build::main::h2c4d912206eadf48
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/teensy3-sys-0.1.0/build.rs:9
[INFO] [stderr]    9:     0x557f6f1f8000 - std::rt::lang_start::{{closure}}::h0198995aaf80e49a
[INFO] [stderr]                                at /rustc/266783e4e09e4e9d5307c1c8e695659c58bbcac7/src/libstd/rt.rs:64
[INFO] [stderr]   10:     0x557f6f208b03 - std::rt::lang_start_internal::{{closure}}::h14c5bec2472d54ad
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   11:     0x557f6f208b03 - std::panicking::try::do_call::h88f516924fc6a288
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   12:     0x557f6f20ee7a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   13:     0x557f6f2095bd - std::panicking::try::ha613ca8bf0a1302a
[INFO] [stderr]                                at src/libstd/panicking.rs:275
[INFO] [stderr]   14:     0x557f6f2095bd - std::panic::catch_unwind::h68d4ca98047bc7c5
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   15:     0x557f6f2095bd - std::rt::lang_start_internal::h600c3ba1b556e68a
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   16:     0x557f6f1f7fd9 - std::rt::lang_start::hd40b7a0d8ddba0b1
[INFO] [stderr]                                at /rustc/266783e4e09e4e9d5307c1c8e695659c58bbcac7/src/libstd/rt.rs:64
[INFO] [stderr]   17:     0x557f6f1f7f8a - main
[INFO] [stderr]   18:     0x7f229dc042e1 - __libc_start_main
[INFO] [stderr]   19:     0x557f6f1f3bda - _start
[INFO] [stderr]   20:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "64fe5be77420b27823a216fea9220677b00dde37ffbbfa92d69cb3b26af4f91d"`
[INFO] running `"docker" "rm" "-f" "64fe5be77420b27823a216fea9220677b00dde37ffbbfa92d69cb3b26af4f91d"`
[INFO] [stdout] 64fe5be77420b27823a216fea9220677b00dde37ffbbfa92d69cb3b26af4f91d