[INFO] cloning repository https://github.com/uwplse/majortom
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/uwplse/majortom" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuwplse%2Fmajortom", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuwplse%2Fmajortom'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 313cf84b43011cbcfb4d49cd3c6e7a9dec150ab4
[INFO] checking uwplse/majortom/313cf84b43011cbcfb4d49cd3c6e7a9dec150ab4 against master#8b6b15b877fbceb1ee5d9a5a4746e7515901574a for pr-147294
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuwplse%2Fmajortom" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/uwplse/majortom
[INFO] finished tweaking git repo https://github.com/uwplse/majortom
[INFO] tweaked toml for git repo https://github.com/uwplse/majortom written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/uwplse/majortom on toolchain 8b6b15b877fbceb1ee5d9a5a4746e7515901574a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8b6b15b877fbceb1ee5d9a5a4746e7515901574a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/uwplse/majortom already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8b6b15b877fbceb1ee5d9a5a4746e7515901574a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Updating git repository `https://github.com/dwoos/protojson`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde v1.0.87
[INFO] [stderr]   Downloaded protobuf-codegen v2.6.2
[INFO] [stderr]   Downloaded serde-value v0.6.0
[INFO] [stderr]   Downloaded protobuf v2.6.2
[INFO] [stderr]   Downloaded base64-serde v0.3.2
[INFO] [stderr]   Downloaded bincode v1.1.2
[INFO] [stderr]   Downloaded nix v0.13.0
[INFO] [stderr]   Downloaded protobuf-codegen-pure v2.6.2
[INFO] [stderr]   Downloaded env_logger v0.6.1
[INFO] [stderr]   Downloaded fern v0.5.7
[INFO] [stderr]   Downloaded serde_derive v1.0.87
[INFO] [stderr]   Downloaded serde_json v1.0.38
[INFO] [stderr]   Downloaded libc v0.2.48
[INFO] [stderr]   Downloaded serde-protobuf v0.8.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+8b6b15b877fbceb1ee5d9a5a4746e7515901574a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 994495c429bd050caabc5f4b234acfa3bfae01baed21efa79b6e0dd02561c34d
[INFO] running `Command { std: "docker" "start" "-a" "994495c429bd050caabc5f4b234acfa3bfae01baed21efa79b6e0dd02561c34d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "994495c429bd050caabc5f4b234acfa3bfae01baed21efa79b6e0dd02561c34d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "994495c429bd050caabc5f4b234acfa3bfae01baed21efa79b6e0dd02561c34d", kill_on_drop: false }`
[INFO] [stdout] 994495c429bd050caabc5f4b234acfa3bfae01baed21efa79b6e0dd02561c34d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+8b6b15b877fbceb1ee5d9a5a4746e7515901574a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 89fe3a4fb76040d3623c79186abf8523bfe61650c1ac0cef81537bcc55482aa7
[INFO] running `Command { std: "docker" "start" "-a" "89fe3a4fb76040d3623c79186abf8523bfe61650c1ac0cef81537bcc55482aa7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.48
[INFO] [stderr]    Compiling serde v1.0.87
[INFO] [stderr]    Compiling protobuf v2.6.2
[INFO] [stderr]    Compiling cc v1.0.28
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]    Compiling bincode v1.1.2
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]    Compiling nix v0.13.0
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking remove_dir_all v0.5.1
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking tempfile v3.0.7
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]     Checking fern v0.5.7
[INFO] [stderr]    Compiling regex v1.1.5
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling serde_derive v1.0.87
[INFO] [stderr]     Checking regex-syntax v0.6.6
[INFO] [stderr]     Checking aho-corasick v0.7.3
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking serde_json v1.0.38
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking serde-value v0.6.0
[INFO] [stderr]    Compiling protobuf-codegen v2.6.2
[INFO] [stderr]     Checking serde-protobuf v0.8.1
[INFO] [stderr]     Checking base64-serde v0.3.2
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking humantime v1.2.0
[INFO] [stderr]     Checking termcolor v1.0.4
[INFO] [stderr]    Compiling protobuf-codegen-pure v2.6.2
[INFO] [stderr]    Compiling protojson v0.1.0 (https://github.com/dwoos/protojson#05176218)
[INFO] [stderr] error: failed to run custom build command for `protojson v0.1.0 (https://github.com/dwoos/protojson#05176218)`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/protojson-229e67314ac36f86/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (735) panicked at /opt/rustwide/cargo-home/git/checkouts/protojson-d83430357b89f1bf/0517621/build.rs:10:6:
[INFO] [stderr]   protoc: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x6472a3c0a012 - std::backtrace_rs::backtrace::libunwind::trace::hee602d17c02ca6a5
[INFO] [stderr]                                  at /rustc/8b6b15b877fbceb1ee5d9a5a4746e7515901574a/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x6472a3c0a012 - std::backtrace_rs::backtrace::trace_unsynchronized::hc8281d0aa88d9595
[INFO] [stderr]                                  at /rustc/8b6b15b877fbceb1ee5d9a5a4746e7515901574a/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x6472a3c0a012 - std::sys::backtrace::_print_fmt::h51f634b61923a31c
[INFO] [stderr]                                  at /rustc/8b6b15b877fbceb1ee5d9a5a4746e7515901574a/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x6472a3c0a012 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hed2261a43b78c0cc
[INFO] [stderr]                                  at /rustc/8b6b15b877fbceb1ee5d9a5a4746e7515901574a/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x6472a3c1b63f - core::fmt::rt::Argument::fmt::hc25374db73b1350e
[INFO] [stderr]                                  at /rustc/8b6b15b877fbceb1ee5d9a5a4746e7515901574a/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]      5:     0x6472a3c1b63f - core::fmt::write::h893d5fa3e643eb86
[INFO] [stderr]                                  at /rustc/8b6b15b877fbceb1ee5d9a5a4746e7515901574a/library/core/src/fmt/mod.rs:1468:25
[INFO] [stderr]      6:     0x6472a3be7693 - std::io::default_write_fmt::hd8f443d9214cf84c
[INFO] [stderr]                                  at /rustc/8b6b15b877fbceb1ee5d9a5a4746e7515901574a/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x6472a3be7693 - std::io::Write::write_fmt::h85f18fc203482c94
[INFO] [stderr]                                  at /rustc/8b6b15b877fbceb1ee5d9a5a4746e7515901574a/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]      8:     0x6472a3bed0c2 - std::sys::backtrace::BacktraceLock::print::hfccb3f0ef11fe676
[INFO] [stderr]                                  at /rustc/8b6b15b877fbceb1ee5d9a5a4746e7515901574a/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x6472a3beedbc - std::panicking::default_hook::{{closure}}::h0dc0e660eac28fe2
[INFO] [stderr]                                  at /rustc/8b6b15b877fbceb1ee5d9a5a4746e7515901574a/library/std/src/panicking.rs:301:27
[INFO] [stderr]     10:     0x6472a3beec16 - std::panicking::default_hook::hd4d52bf86faf3ac6
[INFO] [stderr]                                  at /rustc/8b6b15b877fbceb1ee5d9a5a4746e7515901574a/library/std/src/panicking.rs:328:9
[INFO] [stderr]     11:     0x6472a3bef395 - std::panicking::panic_with_hook::h0289c92005f87e5f
[INFO] [stderr]                                  at /rustc/8b6b15b877fbceb1ee5d9a5a4746e7515901574a/library/std/src/panicking.rs:834:13
[INFO] [stderr]     12:     0x6472a3bef22a - std::panicking::panic_handler::{{closure}}::hfce1335104aa2194
[INFO] [stderr]                                  at /rustc/8b6b15b877fbceb1ee5d9a5a4746e7515901574a/library/std/src/panicking.rs:707:13
[INFO] [stderr]     13:     0x6472a3bed1f9 - std::sys::backtrace::__rust_end_short_backtrace::h4069dfe4b3af6f22
[INFO] [stderr]                                  at /rustc/8b6b15b877fbceb1ee5d9a5a4746e7515901574a/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]     14:     0x6472a3bdc20d - __rustc[d228c1d09b215461]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/8b6b15b877fbceb1ee5d9a5a4746e7515901574a/library/std/src/panicking.rs:698:5
[INFO] [stderr]     15:     0x6472a3c24a00 - core::panicking::panic_fmt::hf6585f22a3d4de47
[INFO] [stderr]                                  at /rustc/8b6b15b877fbceb1ee5d9a5a4746e7515901574a/library/core/src/panicking.rs:78:14
[INFO] [stderr]     16:     0x6472a3c23e06 - core::result::unwrap_failed::h52d0711b20ae5cfa
[INFO] [stderr]                                  at /rustc/8b6b15b877fbceb1ee5d9a5a4746e7515901574a/library/core/src/result.rs:1855:5
[INFO] [stderr]     17:     0x6472a3a5aa50 - core::result::Result<T,E>::expect::h7b85515830a62712
[INFO] [stderr]     18:     0x6472a3a5a91f - build_script_build::main::h792bf11837f54ad5
[INFO] [stderr]     19:     0x6472a3a5a9e3 - core::ops::function::FnOnce::call_once::h5a82b11a6407896a
[INFO] [stderr]     20:     0x6472a3a5a986 - std::sys::backtrace::__rust_begin_short_backtrace::hac0771b5d6c26c6e
[INFO] [stderr]     21:     0x6472a3a5a969 - std::rt::lang_start::{{closure}}::h392761cb03b6aa23
[INFO] [stderr]     22:     0x6472a3be8ad0 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h74794bcd3956d50c
[INFO] [stderr]                                  at /rustc/8b6b15b877fbceb1ee5d9a5a4746e7515901574a/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     23:     0x6472a3be8ad0 - std::panicking::catch_unwind::do_call::hd81675042852638d
[INFO] [stderr]                                  at /rustc/8b6b15b877fbceb1ee5d9a5a4746e7515901574a/library/std/src/panicking.rs:590:40
[INFO] [stderr]     24:     0x6472a3be8ad0 - std::panicking::catch_unwind::hcfd54e36bd8b66fe
[INFO] [stderr]                                  at /rustc/8b6b15b877fbceb1ee5d9a5a4746e7515901574a/library/std/src/panicking.rs:553:19
[INFO] [stderr]     25:     0x6472a3be8ad0 - std::panic::catch_unwind::h977b6dfde79cf3a6
[INFO] [stderr]                                  at /rustc/8b6b15b877fbceb1ee5d9a5a4746e7515901574a/library/std/src/panic.rs:359:14
[INFO] [stderr]     26:     0x6472a3be8ad0 - std::rt::lang_start_internal::{{closure}}::hc557139e8f1e9a4e
[INFO] [stderr]                                  at /rustc/8b6b15b877fbceb1ee5d9a5a4746e7515901574a/library/std/src/rt.rs:175:24
[INFO] [stderr]     27:     0x6472a3be8ad0 - std::panicking::catch_unwind::do_call::hefa51f73c77cc065
[INFO] [stderr]                                  at /rustc/8b6b15b877fbceb1ee5d9a5a4746e7515901574a/library/std/src/panicking.rs:590:40
[INFO] [stderr]     28:     0x6472a3be8ad0 - std::panicking::catch_unwind::hf3292af0687dc354
[INFO] [stderr]                                  at /rustc/8b6b15b877fbceb1ee5d9a5a4746e7515901574a/library/std/src/panicking.rs:553:19
[INFO] [stderr]     29:     0x6472a3be8ad0 - std::panic::catch_unwind::h956fe86ddb26a670
[INFO] [stderr]                                  at /rustc/8b6b15b877fbceb1ee5d9a5a4746e7515901574a/library/std/src/panic.rs:359:14
[INFO] [stderr]     30:     0x6472a3be8ad0 - std::rt::lang_start_internal::h203dc5601a88af35
[INFO] [stderr]                                  at /rustc/8b6b15b877fbceb1ee5d9a5a4746e7515901574a/library/std/src/rt.rs:171:5
[INFO] [stderr]     31:     0x6472a3a5a951 - std::rt::lang_start::hdbf85545fe0f594e
[INFO] [stderr]     32:     0x6472a3a5abd5 - main
[INFO] [stderr]     33:     0x76b5b31121ca - <unknown>
[INFO] [stderr]     34:     0x76b5b311228b - __libc_start_main
[INFO] [stderr]     35:     0x6472a3a5a745 - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "89fe3a4fb76040d3623c79186abf8523bfe61650c1ac0cef81537bcc55482aa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89fe3a4fb76040d3623c79186abf8523bfe61650c1ac0cef81537bcc55482aa7", kill_on_drop: false }`
[INFO] [stdout] 89fe3a4fb76040d3623c79186abf8523bfe61650c1ac0cef81537bcc55482aa7