[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#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCentauriSolutions%2Fmjolnir-plugin-tester" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CentauriSolutions/mjolnir-plugin-tester on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-12/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 56ff99b6e7b4c74e99400f8515a311a202f3f7640c5f36cf619afb0a88e74a50
[INFO] running `Command { std: "docker" "start" "-a" "56ff99b6e7b4c74e99400f8515a311a202f3f7640c5f36cf619afb0a88e74a50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "56ff99b6e7b4c74e99400f8515a311a202f3f7640c5f36cf619afb0a88e74a50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56ff99b6e7b4c74e99400f8515a311a202f3f7640c5f36cf619afb0a88e74a50", kill_on_drop: false }`
[INFO] [stdout] 56ff99b6e7b4c74e99400f8515a311a202f3f7640c5f36cf619afb0a88e74a50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b23d7563f23cde5ad3665659a65574e069591a496945b93c11767613fda48409
[INFO] running `Command { std: "docker" "start" "-a" "b23d7563f23cde5ad3665659a65574e069591a496945b93c11767613fda48409", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.34
[INFO] [stderr]    Compiling byteorder v1.2.1
[INFO] [stderr]    Compiling log v0.3.8
[INFO] [stderr]     Checking serde v1.0.23
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking iovec v0.1.1
[INFO] [stderr]     Checking atty v0.2.3
[INFO] [stderr]     Checking base64 v0.6.0
[INFO] [stderr]    Compiling serde_derive_internals v0.17.0
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking bytes v0.4.5
[INFO] [stderr]    Compiling protoc v1.4.3
[INFO] [stderr]     Checking clap v2.28.0
[INFO] [stderr]     Checking protobuf v1.4.3
[INFO] [stderr]    Compiling rand v0.3.18
[INFO] [stderr]    Compiling serde_derive v1.0.23
[INFO] [stderr]    Compiling tempdir v0.3.5
[INFO] [stderr]     Checking toml v0.4.5
[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-0caa74b61a7828ce/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'protoc: Os { code: 30, kind: ReadOnlyFilesystem, 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:     0x55fb13ece960 - std::backtrace_rs::backtrace::libunwind::trace::h0f5cd2ee8b0d7274
[INFO] [stderr]                                  at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x55fb13ece960 - std::backtrace_rs::backtrace::trace_unsynchronized::h06905b5aeda069a1
[INFO] [stderr]                                  at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55fb13ece960 - std::sys_common::backtrace::_print_fmt::h4fe4c7c875072f30
[INFO] [stderr]                                  at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x55fb13ece960 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hcc0746f004a9b7ef
[INFO] [stderr]                                  at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x55fb13ef21cc - core::fmt::write::h9a6d9c74526a6c1b
[INFO] [stderr]                                  at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/core/src/fmt/mod.rs:1115:17
[INFO] [stderr]      5:     0x55fb13ecc0c5 - std::io::Write::write_fmt::h23dab4cc9ce72ee2
[INFO] [stderr]                                  at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/io/mod.rs:1665:15
[INFO] [stderr]      6:     0x55fb13ed09fb - std::sys_common::backtrace::_print::h173dc702502d65d2
[INFO] [stderr]                                  at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x55fb13ed09fb - std::sys_common::backtrace::print::h61bd27c4742ba817
[INFO] [stderr]                                  at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x55fb13ed09fb - std::panicking::default_hook::{{closure}}::hcaae87f0495ae613
[INFO] [stderr]                                  at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x55fb13ed04d1 - std::panicking::default_hook::h0538e728ee080db0
[INFO] [stderr]                                  at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x55fb13ed10c4 - std::panicking::rust_panic_with_hook::h3039e236b6ca482c
[INFO] [stderr]                                  at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/panicking.rs:622:17
[INFO] [stderr]     11:     0x55fb13ed0ba7 - std::panicking::begin_panic_handler::{{closure}}::h884fbab544ffd91c
[INFO] [stderr]                                  at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/panicking.rs:519:13
[INFO] [stderr]     12:     0x55fb13ecee5c - std::sys_common::backtrace::__rust_end_short_backtrace::hdaf2e18ba3d91210
[INFO] [stderr]                                  at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x55fb13ed0b09 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/panicking.rs:515:5
[INFO] [stderr]     14:     0x55fb13c8b151 - core::panicking::panic_fmt::hcf5f6d96e1dd7099
[INFO] [stderr]                                  at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/core/src/panicking.rs:92:14
[INFO] [stderr]     15:     0x55fb13c8b243 - core::result::unwrap_failed::he898b02f57993c42
[INFO] [stderr]                                  at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/core/src/result.rs:1599:5
[INFO] [stderr]     16:     0x55fb13c8bb59 - core::result::Result<T,E>::expect::h9d89ab12e999e287
[INFO] [stderr]                                  at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/core/src/result.rs:1241:23
[INFO] [stderr]     17:     0x55fb13c8bab1 - build_script_build::main::hb02895d4809af630
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/git/checkouts/mjolnir-b48ed57251170b8b/8160867/mjolnir-api/build.rs:4:5
[INFO] [stderr]     18:     0x55fb13c8bccb - core::ops::function::FnOnce::call_once::h423dc9dedd707bac
[INFO] [stderr]                                  at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     19:     0x55fb13c8b9ee - std::sys_common::backtrace::__rust_begin_short_backtrace::hd7d14e9af0adedaa
[INFO] [stderr]                                  at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     20:     0x55fb13c8bc31 - std::rt::lang_start::{{closure}}::hd45b66f272764316
[INFO] [stderr]                                  at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/rt.rs:63:18
[INFO] [stderr]     21:     0x55fb13ed15ca - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h61bcc1dec5918b7e
[INFO] [stderr]                                  at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     22:     0x55fb13ed15ca - std::panicking::try::do_call::h672d24f85ce22db4
[INFO] [stderr]                                  at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/panicking.rs:401:40
[INFO] [stderr]     23:     0x55fb13ed15ca - std::panicking::try::he383e7ef11604e58
[INFO] [stderr]                                  at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/panicking.rs:365:19
[INFO] [stderr]     24:     0x55fb13ed15ca - std::panic::catch_unwind::h502ac6058961e393
[INFO] [stderr]                                  at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/panic.rs:434:14
[INFO] [stderr]     25:     0x55fb13ed15ca - std::rt::lang_start_internal::{{closure}}::h851ee37bb5d99fdf
[INFO] [stderr]                                  at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/rt.rs:45:48
[INFO] [stderr]     26:     0x55fb13ed15ca - std::panicking::try::do_call::h84f41bb3453bbd14
[INFO] [stderr]                                  at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/panicking.rs:401:40
[INFO] [stderr]     27:     0x55fb13ed15ca - std::panicking::try::h969c45dbbf2e4c94
[INFO] [stderr]                                  at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/panicking.rs:365:19
[INFO] [stderr]     28:     0x55fb13ed15ca - std::panic::catch_unwind::he40b1a4614f73e03
[INFO] [stderr]                                  at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/panic.rs:434:14
[INFO] [stderr]     29:     0x55fb13ed15ca - std::rt::lang_start_internal::h0fbab25cccdb30d8
[INFO] [stderr]                                  at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/rt.rs:45:20
[INFO] [stderr]     30:     0x55fb13c8bc00 - std::rt::lang_start::h6def7f23a9f3a302
[INFO] [stderr]                                  at /rustc/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/library/std/src/rt.rs:62:5
[INFO] [stderr]     31:     0x55fb13c8badc - main
[INFO] [stderr]     32:     0x7fcbd70310b3 - __libc_start_main
[INFO] [stderr]     33:     0x55fb13c8b90e - _start
[INFO] [stderr]     34:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "b23d7563f23cde5ad3665659a65574e069591a496945b93c11767613fda48409", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b23d7563f23cde5ad3665659a65574e069591a496945b93c11767613fda48409", kill_on_drop: false }`
[INFO] [stdout] b23d7563f23cde5ad3665659a65574e069591a496945b93c11767613fda48409