[INFO] cloning repository https://github.com/stickeritis/sticker-server-protobuf
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stickeritis/sticker-server-protobuf" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstickeritis%2Fsticker-server-protobuf", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstickeritis%2Fsticker-server-protobuf'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dd6623bd531966d544afb8c0ce9edb9fb1a3ec34
[INFO] checking stickeritis/sticker-server-protobuf against master#da897dfb6daa268a965d2d73620316ba56020a19 for pr-76219
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstickeritis%2Fsticker-server-protobuf" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stickeritis/sticker-server-protobuf on toolchain da897dfb6daa268a965d2d73620316ba56020a19
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/stickeritis/sticker-server-protobuf
[INFO] finished tweaking git repo https://github.com/stickeritis/sticker-server-protobuf
[INFO] tweaked toml for git repo https://github.com/stickeritis/sticker-server-protobuf written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/stickeritis/sticker-server-protobuf already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+da897dfb6daa268a965d2d73620316ba56020a19" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 47095861a92d371c73ee55c340cefac2abdd33f3f553fab162a263e8a7c8cda7
[INFO] running `Command { std: "docker" "start" "-a" "47095861a92d371c73ee55c340cefac2abdd33f3f553fab162a263e8a7c8cda7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47095861a92d371c73ee55c340cefac2abdd33f3f553fab162a263e8a7c8cda7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47095861a92d371c73ee55c340cefac2abdd33f3f553fab162a263e8a7c8cda7", kill_on_drop: false }`
[INFO] [stdout] 47095861a92d371c73ee55c340cefac2abdd33f3f553fab162a263e8a7c8cda7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+da897dfb6daa268a965d2d73620316ba56020a19" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4288a08668144448832293d8085075a3ba270e7975369b13eb444837b5205a70
[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" "4288a08668144448832293d8085075a3ba270e7975369b13eb444837b5205a70", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling protobuf v2.10.2
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling protoc v2.10.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling protobuf-codegen v2.10.2
[INFO] [stderr]    Compiling protoc-rust v2.10.2
[INFO] [stderr]    Compiling sticker-server-protobuf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `sticker-server-protobuf v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/sticker-server-protobuf-9f3bd8a0ce503d7b/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" }', build.rs:12:6
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55e6b3c3c9a0 - std::backtrace_rs::backtrace::libunwind::trace::h452faf99f32e7c93
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stderr]      1:     0x55e6b3c3c9a0 - std::backtrace_rs::backtrace::trace_unsynchronized::he40edc71437667a1
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stderr]      2:     0x55e6b3c3c9a0 - std::sys_common::backtrace::_print_fmt::h6c51d6ade71f46bf
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/sys_common/backtrace.rs:79
[INFO] [stderr]      3:     0x55e6b3c3c9a0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h3cd15d7003dec37a
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/sys_common/backtrace.rs:58
[INFO] [stderr]      4:     0x55e6b3c61d9c - core::fmt::write::h1857a60b204f1b6a
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/core/src/fmt/mod.rs:1082
[INFO] [stderr]      5:     0x55e6b3c3a017 - std::io::Write::write_fmt::hac61caff894c35ae
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/io/mod.rs:1517
[INFO] [stderr]      6:     0x55e6b3c3efa0 - std::sys_common::backtrace::_print::haa2f390fb7957e3e
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/sys_common/backtrace.rs:61
[INFO] [stderr]      7:     0x55e6b3c3efa0 - std::sys_common::backtrace::print::h48c7cbbad9013bb1
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/sys_common/backtrace.rs:48
[INFO] [stderr]      8:     0x55e6b3c3efa0 - std::panicking::default_hook::{{closure}}::h8b7ff05a31e71d55
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/panicking.rs:208
[INFO] [stderr]      9:     0x55e6b3c3ecec - std::panicking::default_hook::h2f00c78800d98e4c
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/panicking.rs:227
[INFO] [stderr]     10:     0x55e6b3c3f603 - std::panicking::rust_panic_with_hook::h4eaa635e4694aef3
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/panicking.rs:577
[INFO] [stderr]     11:     0x55e6b3c3f1d9 - std::panicking::begin_panic_handler::{{closure}}::hec242f1b136b5ff2
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/panicking.rs:484
[INFO] [stderr]     12:     0x55e6b3c3ce0c - std::sys_common::backtrace::__rust_end_short_backtrace::h1f3cc383ee6c0374
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/sys_common/backtrace.rs:153
[INFO] [stderr]     13:     0x55e6b3c3f199 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/panicking.rs:483
[INFO] [stderr]     14:     0x55e6b3c5fc11 - core::panicking::panic_fmt::hb15d6f55e8472f62
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/core/src/panicking.rs:85
[INFO] [stderr]     15:     0x55e6b3c5fa33 - core::option::expect_none_failed::he492a18657d97593
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/core/src/option.rs:1221
[INFO] [stderr]     16:     0x55e6b399c5dc - core::result::Result<T,E>::expect::he0c154578dcb0b73
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/core/src/result.rs:933
[INFO] [stderr]     17:     0x55e6b399c385 - build_script_build::main::h4e481e2e3ba2ef4a
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:4
[INFO] [stderr]     18:     0x55e6b399c1cb - core::ops::function::FnOnce::call_once::h3a94618ab861bf16
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/core/src/ops/function.rs:227
[INFO] [stderr]     19:     0x55e6b399c52e - std::sys_common::backtrace::__rust_begin_short_backtrace::hbfc5d204dcd23b1f
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/sys_common/backtrace.rs:137
[INFO] [stderr]     20:     0x55e6b399c691 - std::rt::lang_start::{{closure}}::h44c307e6b5dc6efa
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/rt.rs:66
[INFO] [stderr]     21:     0x55e6b3c3fa01 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hecc21eb9018cc197
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/core/src/ops/function.rs:259
[INFO] [stderr]     22:     0x55e6b3c3fa01 - std::panicking::try::do_call::h174ad655d084b5c7
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/panicking.rs:381
[INFO] [stderr]     23:     0x55e6b3c3fa01 - std::panicking::try::h479e6054ce28de10
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/panicking.rs:345
[INFO] [stderr]     24:     0x55e6b3c3fa01 - std::panic::catch_unwind::hb558ddea2b3e9c45
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/panic.rs:382
[INFO] [stderr]     25:     0x55e6b3c3fa01 - std::rt::lang_start_internal::h163149047f0a8b61
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/rt.rs:51
[INFO] [stderr]     26:     0x55e6b399c667 - std::rt::lang_start::h5e7d93f3d6ead0bd
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/rt.rs:65
[INFO] [stderr]     27:     0x55e6b399c3ba - main
[INFO] [stderr]     28:     0x7fe41dfe00b3 - __libc_start_main
[INFO] [stderr]     29:     0x55e6b399c0de - _start
[INFO] [stderr]     30:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "4288a08668144448832293d8085075a3ba270e7975369b13eb444837b5205a70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4288a08668144448832293d8085075a3ba270e7975369b13eb444837b5205a70", kill_on_drop: false }`
[INFO] [stdout] 4288a08668144448832293d8085075a3ba270e7975369b13eb444837b5205a70