[INFO] fetching crate ruduino 0.2.6...
[INFO] checking ruduino-0.2.6 against master#ffa2e7ae8fbf9badc035740db949b9dae271c29f for pr-78338
[INFO] extracting crate ruduino 0.2.6 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate ruduino 0.2.6 on toolchain ffa2e7ae8fbf9badc035740db949b9dae271c29f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa2e7ae8fbf9badc035740db949b9dae271c29f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ruduino 0.2.6
[INFO] finished tweaking crates.io crate ruduino 0.2.6
[INFO] tweaked toml for crates.io crate ruduino 0.2.6 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate ruduino 0.2.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa2e7ae8fbf9badc035740db949b9dae271c29f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa2e7ae8fbf9badc035740db949b9dae271c29f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 305c7087cd9796a0e1c4a5632c24245e8e417c61adbc5cbf49c606a26b3d60fc
[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" "305c7087cd9796a0e1c4a5632c24245e8e417c61adbc5cbf49c606a26b3d60fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "305c7087cd9796a0e1c4a5632c24245e8e417c61adbc5cbf49c606a26b3d60fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "305c7087cd9796a0e1c4a5632c24245e8e417c61adbc5cbf49c606a26b3d60fc", kill_on_drop: false }`
[INFO] [stdout] 305c7087cd9796a0e1c4a5632c24245e8e417c61adbc5cbf49c606a26b3d60fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa2e7ae8fbf9badc035740db949b9dae271c29f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7cb8dfc4e7106291c458e16e76b2e7d4d8517e6c4987160d16573d00c806e3ee
[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" "7cb8dfc4e7106291c458e16e76b2e7d4d8517e6c4987160d16573d00c806e3ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling json v0.12.4
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]     Checking avr-std-stub v1.0.0
[INFO] [stderr]    Compiling xmltree v0.10.1
[INFO] [stderr]    Compiling target-cpu-fetch v0.1.1
[INFO] [stderr]    Compiling avr-mcu v0.3.3
[INFO] [stderr]    Compiling target-cpu-macro v0.1.1
[INFO] [stderr]    Compiling ruduino v0.2.6 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `ruduino v0.2.6 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/ruduino-dcf60f1a79a76ee1/build-script-build` (exit code: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   loading pack '/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/avr-mcu-0.3.3/packs/atmega/ATmega328.atdf'
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', core_generator/build.rs:46:30
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5558d8a98f60 - std::backtrace_rs::backtrace::libunwind::trace::h303a626d53553a64
[INFO] [stderr]                                  at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:100:5
[INFO] [stderr]      1:     0x5558d8a98f60 - std::backtrace_rs::backtrace::trace_unsynchronized::h6abb882733c3f18c
[INFO] [stderr]                                  at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x5558d8a98f60 - std::sys_common::backtrace::_print_fmt::h57829321f1d9217a
[INFO] [stderr]                                  at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x5558d8a98f60 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h400b66a054640aac
[INFO] [stderr]                                  at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x5558d8ab47bc - core::fmt::write::h1857a60b204f1b6a
[INFO] [stderr]                                  at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/core/src/fmt/mod.rs:1076:17
[INFO] [stderr]      5:     0x5558d8a96272 - std::io::Write::write_fmt::h6453b28c8b27c6ea
[INFO] [stderr]                                  at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/io/mod.rs:1516:15
[INFO] [stderr]      6:     0x5558d8a9b0c5 - std::sys_common::backtrace::_print::h15cc4b3923cc9bc0
[INFO] [stderr]                                  at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x5558d8a9b0c5 - std::sys_common::backtrace::print::h953c7be178c0674d
[INFO] [stderr]                                  at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x5558d8a9b0c5 - std::panicking::default_hook::{{closure}}::h635d667f571198f0
[INFO] [stderr]                                  at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x5558d8a9ad68 - std::panicking::default_hook::h3bc2efb48060abaa
[INFO] [stderr]                                  at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/panicking.rs:227:9
[INFO] [stderr]     10:     0x5558d8a9b741 - std::panicking::rust_panic_with_hook::h887eb0c89f46b8b2
[INFO] [stderr]                                  at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/panicking.rs:577:17
[INFO] [stderr]     11:     0x5558d8a9b2e9 - std::panicking::begin_panic_handler::{{closure}}::hf0d3f46d37dd3bc1
[INFO] [stderr]                                  at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/panicking.rs:484:9
[INFO] [stderr]     12:     0x5558d8a993fc - std::sys_common::backtrace::__rust_end_short_backtrace::h4bce8b52717576e3
[INFO] [stderr]                                  at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x5558d8a9b2a9 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/panicking.rs:483:5
[INFO] [stderr]     14:     0x5558d8ab3ad1 - core::panicking::panic_fmt::hb15d6f55e8472f62
[INFO] [stderr]                                  at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/core/src/panicking.rs:85:14
[INFO] [stderr]     15:     0x5558d8ab38f3 - core::option::expect_none_failed::he492a18657d97593
[INFO] [stderr]                                  at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/core/src/option.rs:1268:5
[INFO] [stderr]     16:     0x5558d8a391b0 - core::result::Result<T,E>::unwrap::h2f7dcd5ae58124b2
[INFO] [stderr]                                  at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/core/src/result.rs:973:23
[INFO] [stderr]     17:     0x5558d89d4485 - build_script_build::main::h579913277fb9e298
[INFO] [stderr]                                  at /opt/rustwide/workdir/core_generator/build.rs:46:5
[INFO] [stderr]     18:     0x5558d89d766b - core::ops::function::FnOnce::call_once::h1450770f1acfd2da
[INFO] [stderr]                                  at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     19:     0x5558d89d84de - std::sys_common::backtrace::__rust_begin_short_backtrace::hf3caaf25ef860450
[INFO] [stderr]                                  at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     20:     0x5558d89d7111 - std::rt::lang_start::{{closure}}::hf85a4250d9e795b9
[INFO] [stderr]                                  at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/rt.rs:66:18
[INFO] [stderr]     21:     0x5558d8a9bb67 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h1af42f2aaad601f7
[INFO] [stderr]                                  at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     22:     0x5558d8a9bb67 - std::panicking::try::do_call::h9d43a73a8e9fb04a
[INFO] [stderr]                                  at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/panicking.rs:381:40
[INFO] [stderr]     23:     0x5558d8a9bb67 - std::panicking::try::h7a8d1100a6afe839
[INFO] [stderr]                                  at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/panicking.rs:345:19
[INFO] [stderr]     24:     0x5558d8a9bb67 - std::panic::catch_unwind::h9c80942da690cf03
[INFO] [stderr]                                  at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/panic.rs:382:14
[INFO] [stderr]     25:     0x5558d8a9bb67 - std::rt::lang_start_internal::h18ef240fb861b4d5
[INFO] [stderr]                                  at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/rt.rs:51:25
[INFO] [stderr]     26:     0x5558d89d70e7 - std::rt::lang_start::h35b2af81fa12f99c
[INFO] [stderr]                                  at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/rt.rs:65:5
[INFO] [stderr]     27:     0x5558d89d6eea - main
[INFO] [stderr]     28:     0x7f356118f0b3 - __libc_start_main
[INFO] [stderr]     29:     0x5558d89c80be - _start
[INFO] [stderr]     30:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "7cb8dfc4e7106291c458e16e76b2e7d4d8517e6c4987160d16573d00c806e3ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cb8dfc4e7106291c458e16e76b2e7d4d8517e6c4987160d16573d00c806e3ee", kill_on_drop: false }`
[INFO] [stdout] 7cb8dfc4e7106291c458e16e76b2e7d4d8517e6c4987160d16573d00c806e3ee