[INFO] cloning repository https://github.com/CentauriSolutions/mjolnir-plugin-tester
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CentauriSolutions/mjolnir-plugin-tester" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCentauriSolutions%2Fmjolnir-plugin-tester", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCentauriSolutions%2Fmjolnir-plugin-tester'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7ca6c17637aa41086e8724a98f9f979651399a37
[INFO] checking CentauriSolutions/mjolnir-plugin-tester against master#d62d3f7fa9a91d933213cc10e20e740608983f64 for pr-77015
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCentauriSolutions%2Fmjolnir-plugin-tester" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CentauriSolutions/mjolnir-plugin-tester on toolchain d62d3f7fa9a91d933213cc10e20e740608983f64
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CentauriSolutions/mjolnir-plugin-tester
[INFO] finished tweaking git repo https://github.com/CentauriSolutions/mjolnir-plugin-tester
[INFO] tweaked toml for git repo https://github.com/CentauriSolutions/mjolnir-plugin-tester written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/CentauriSolutions/mjolnir-plugin-tester already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3fd57c01bc4361585bfdbf5af7e990562a5a83b29cc0c8dc20e36f9c55aaae0d
[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" "3fd57c01bc4361585bfdbf5af7e990562a5a83b29cc0c8dc20e36f9c55aaae0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3fd57c01bc4361585bfdbf5af7e990562a5a83b29cc0c8dc20e36f9c55aaae0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fd57c01bc4361585bfdbf5af7e990562a5a83b29cc0c8dc20e36f9c55aaae0d", kill_on_drop: false }`
[INFO] [stdout] 3fd57c01bc4361585bfdbf5af7e990562a5a83b29cc0c8dc20e36f9c55aaae0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3cfaacb5e85683e9e9b6eed4b1bfd61326c72243c07ebb80f8f86f7c120c7b8c
[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" "3cfaacb5e85683e9e9b6eed4b1bfd61326c72243c07ebb80f8f86f7c120c7b8c", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.2.1
[INFO] [stderr]    Compiling log v0.3.8
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]    Compiling iovec v0.1.1
[INFO] [stderr]    Compiling rand v0.3.18
[INFO] [stderr]     Checking toml v0.4.5
[INFO] [stderr]     Checking atty v0.2.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling protoc v1.4.3
[INFO] [stderr]     Checking clap v2.28.0
[INFO] [stderr]     Checking bytes v0.4.5
[INFO] [stderr]     Checking base64 v0.6.0
[INFO] [stderr]     Checking protobuf v1.4.3
[INFO] [stderr]    Compiling tempdir v0.3.5
[INFO] [stderr]    Compiling serde_derive_internals v0.17.0
[INFO] [stderr]    Compiling serde_derive v1.0.23
[INFO] [stderr]    Compiling protoc-rust v1.4.3
[INFO] [stderr]    Compiling mjolnir-api v0.1.3 (https://github.com/ChrisMacNaughton/mjolnir#81608671)
[INFO] [stderr] error: failed to run custom build command for `mjolnir-api v0.1.3 (https://github.com/ChrisMacNaughton/mjolnir#81608671)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/mjolnir-api-1f77b00f8247cf82/build-script-build` (exit code: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'protoc: Os { code: 30, kind: Other, message: "Read-only file system" }', /opt/rustwide/cargo-home/git/checkouts/mjolnir-b48ed57251170b8b/8160867/mjolnir-api/build.rs:8:8
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55beb1090970 - std::backtrace_rs::backtrace::libunwind::trace::he85dfb3ae4206056
[INFO] [stderr]                                  at /rustc/d62d3f7fa9a91d933213cc10e20e740608983f64/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stderr]      1:     0x55beb1090970 - std::backtrace_rs::backtrace::trace_unsynchronized::h1ad28094d7b00c21
[INFO] [stderr]                                  at /rustc/d62d3f7fa9a91d933213cc10e20e740608983f64/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stderr]      2:     0x55beb1090970 - std::sys_common::backtrace::_print_fmt::h901b54610713cd21
[INFO] [stderr]                                  at /rustc/d62d3f7fa9a91d933213cc10e20e740608983f64/library/std/src/sys_common/backtrace.rs:79
[INFO] [stderr]      3:     0x55beb1090970 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hb0ad78ee1571f7e0
[INFO] [stderr]                                  at /rustc/d62d3f7fa9a91d933213cc10e20e740608983f64/library/std/src/sys_common/backtrace.rs:58
[INFO] [stderr]      4:     0x55beb10b407c - core::fmt::write::h1857a60b204f1b6a
[INFO] [stderr]                                  at /rustc/d62d3f7fa9a91d933213cc10e20e740608983f64/library/core/src/fmt/mod.rs:1080
[INFO] [stderr]      5:     0x55beb108e0e2 - std::io::Write::write_fmt::hf7b7d7b243f84a36
[INFO] [stderr]                                  at /rustc/d62d3f7fa9a91d933213cc10e20e740608983f64/library/std/src/io/mod.rs:1516
[INFO] [stderr]      6:     0x55beb1092e5d - std::sys_common::backtrace::_print::hd093978a5287b8ff
[INFO] [stderr]                                  at /rustc/d62d3f7fa9a91d933213cc10e20e740608983f64/library/std/src/sys_common/backtrace.rs:61
[INFO] [stderr]      7:     0x55beb1092e5d - std::sys_common::backtrace::print::h20f46787581d56d7
[INFO] [stderr]                                  at /rustc/d62d3f7fa9a91d933213cc10e20e740608983f64/library/std/src/sys_common/backtrace.rs:48
[INFO] [stderr]      8:     0x55beb1092e5d - std::panicking::default_hook::{{closure}}::h486cbb4b82ffc357
[INFO] [stderr]                                  at /rustc/d62d3f7fa9a91d933213cc10e20e740608983f64/library/std/src/panicking.rs:208
[INFO] [stderr]      9:     0x55beb1092b08 - std::panicking::default_hook::h4190c9e3edd4d591
[INFO] [stderr]                                  at /rustc/d62d3f7fa9a91d933213cc10e20e740608983f64/library/std/src/panicking.rs:227
[INFO] [stderr]     10:     0x55beb1093541 - std::panicking::rust_panic_with_hook::h72e78719cdda225c
[INFO] [stderr]                                  at /rustc/d62d3f7fa9a91d933213cc10e20e740608983f64/library/std/src/panicking.rs:577
[INFO] [stderr]     11:     0x55beb10930e9 - std::panicking::begin_panic_handler::{{closure}}::h8bd07dbd34150a96
[INFO] [stderr]                                  at /rustc/d62d3f7fa9a91d933213cc10e20e740608983f64/library/std/src/panicking.rs:484
[INFO] [stderr]     12:     0x55beb1090dfc - std::sys_common::backtrace::__rust_end_short_backtrace::hdb6b3066ad29028a
[INFO] [stderr]                                  at /rustc/d62d3f7fa9a91d933213cc10e20e740608983f64/library/std/src/sys_common/backtrace.rs:153
[INFO] [stderr]     13:     0x55beb10930a9 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/d62d3f7fa9a91d933213cc10e20e740608983f64/library/std/src/panicking.rs:483
[INFO] [stderr]     14:     0x55beb10b1f61 - core::panicking::panic_fmt::hb15d6f55e8472f62
[INFO] [stderr]                                  at /rustc/d62d3f7fa9a91d933213cc10e20e740608983f64/library/core/src/panicking.rs:85
[INFO] [stderr]     15:     0x55beb10b1d83 - core::option::expect_none_failed::he492a18657d97593
[INFO] [stderr]                                  at /rustc/d62d3f7fa9a91d933213cc10e20e740608983f64/library/core/src/option.rs:1234
[INFO] [stderr]     16:     0x55beb0e1f47f - core::result::Result<T,E>::expect::h597c936d8a8755dc
[INFO] [stderr]                                  at /rustc/d62d3f7fa9a91d933213cc10e20e740608983f64/library/core/src/result.rs:933
[INFO] [stderr]     17:     0x55beb0e1f26f - build_script_build::main::h92328bdc5c7c8fcd
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/git/checkouts/mjolnir-b48ed57251170b8b/8160867/mjolnir-api/build.rs:4
[INFO] [stderr]     18:     0x55beb0e1f3eb - core::ops::function::FnOnce::call_once::h80800a9558212662
[INFO] [stderr]                                  at /rustc/d62d3f7fa9a91d933213cc10e20e740608983f64/library/core/src/ops/function.rs:227
[INFO] [stderr]     19:     0x55beb0e1f19e - std::sys_common::backtrace::__rust_begin_short_backtrace::hcbeef0ea1b7d5d87
[INFO] [stderr]                                  at /rustc/d62d3f7fa9a91d933213cc10e20e740608983f64/library/std/src/sys_common/backtrace.rs:137
[INFO] [stderr]     20:     0x55beb0e1f361 - std::rt::lang_start::{{closure}}::h51d131ef7280724b
[INFO] [stderr]                                  at /rustc/d62d3f7fa9a91d933213cc10e20e740608983f64/library/std/src/rt.rs:66
[INFO] [stderr]     21:     0x55beb1093967 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h5e15f43ce28787f7
[INFO] [stderr]                                  at /rustc/d62d3f7fa9a91d933213cc10e20e740608983f64/library/core/src/ops/function.rs:259
[INFO] [stderr]     22:     0x55beb1093967 - std::panicking::try::do_call::h764f1891769113e9
[INFO] [stderr]                                  at /rustc/d62d3f7fa9a91d933213cc10e20e740608983f64/library/std/src/panicking.rs:381
[INFO] [stderr]     23:     0x55beb1093967 - std::panicking::try::h0f2fe4fdd5e0ad19
[INFO] [stderr]                                  at /rustc/d62d3f7fa9a91d933213cc10e20e740608983f64/library/std/src/panicking.rs:345
[INFO] [stderr]     24:     0x55beb1093967 - std::panic::catch_unwind::h1634e40dd3a19f80
[INFO] [stderr]                                  at /rustc/d62d3f7fa9a91d933213cc10e20e740608983f64/library/std/src/panic.rs:382
[INFO] [stderr]     25:     0x55beb1093967 - std::rt::lang_start_internal::h8d4bc7b854bbd5fe
[INFO] [stderr]                                  at /rustc/d62d3f7fa9a91d933213cc10e20e740608983f64/library/std/src/rt.rs:51
[INFO] [stderr]     26:     0x55beb0e1f337 - std::rt::lang_start::h884c044e759b19f1
[INFO] [stderr]                                  at /rustc/d62d3f7fa9a91d933213cc10e20e740608983f64/library/std/src/rt.rs:65
[INFO] [stderr]     27:     0x55beb0e1f2aa - main
[INFO] [stderr]     28:     0x7fa297d9d0b3 - __libc_start_main
[INFO] [stderr]     29:     0x55beb0e1f0ce - _start
[INFO] [stderr]     30:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "3cfaacb5e85683e9e9b6eed4b1bfd61326c72243c07ebb80f8f86f7c120c7b8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cfaacb5e85683e9e9b6eed4b1bfd61326c72243c07ebb80f8f86f7c120c7b8c", kill_on_drop: false }`
[INFO] [stdout] 3cfaacb5e85683e9e9b6eed4b1bfd61326c72243c07ebb80f8f86f7c120c7b8c