[INFO] cloning repository https://github.com/bs2kbs2k/minecraft_proxy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bs2kbs2k/minecraft_proxy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbs2kbs2k%2Fminecraft_proxy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbs2kbs2k%2Fminecraft_proxy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e1af713b339194e3691016c733e7b8d1ff7f4d66
[INFO] testing bs2kbs2k/minecraft_proxy against try#5a3d3b91048a0adf280e7a4e589c1dda6443f172 for pr-115235
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbs2kbs2k%2Fminecraft_proxy" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bs2kbs2k/minecraft_proxy on toolchain 5a3d3b91048a0adf280e7a4e589c1dda6443f172
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5a3d3b91048a0adf280e7a4e589c1dda6443f172" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bs2kbs2k/minecraft_proxy
[INFO] finished tweaking git repo https://github.com/bs2kbs2k/minecraft_proxy
[INFO] tweaked toml for git repo https://github.com/bs2kbs2k/minecraft_proxy written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/bs2kbs2k/minecraft_proxy 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" "+5a3d3b91048a0adf280e7a4e589c1dda6443f172" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+5a3d3b91048a0adf280e7a4e589c1dda6443f172" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a06aa1fc162f92cb8ea640bf8c53ff7ae763ffa7c465fee8238fc1afd182444f
[INFO] running `Command { std: "docker" "start" "-a" "a06aa1fc162f92cb8ea640bf8c53ff7ae763ffa7c465fee8238fc1afd182444f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a06aa1fc162f92cb8ea640bf8c53ff7ae763ffa7c465fee8238fc1afd182444f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a06aa1fc162f92cb8ea640bf8c53ff7ae763ffa7c465fee8238fc1afd182444f", kill_on_drop: false }`
[INFO] [stdout] a06aa1fc162f92cb8ea640bf8c53ff7ae763ffa7c465fee8238fc1afd182444f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+5a3d3b91048a0adf280e7a4e589c1dda6443f172" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8127792bd48d2b2ca259aff686373b0f93c32b9214d69c094cab3dbd54cd7a15
[INFO] running `Command { std: "docker" "start" "-a" "8127792bd48d2b2ca259aff686373b0f93c32b9214d69c094cab3dbd54cd7a15", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling instant v0.1.10
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr]    Compiling anyhow v1.0.43
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling tokio v1.10.1
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling mio v0.7.13
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr] LLVM ERROR: IO failure on output stream: No space left on device
[INFO] [stderr] error: could not compile `mio` (lib)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] thread 'rustc' panicked at compiler/rustc_metadata/src/rmeta/encoder.rs:450:9:
[INFO] [stderr] assertion failed: pos.get() <= self.position()
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x7fabfb8f4efc - std::backtrace_rs::backtrace::libunwind::trace::h1e94f51a70590b24
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stderr]    1:     0x7fabfb8f4efc - std::backtrace_rs::backtrace::trace_unsynchronized::ha4b8601070a1cd51
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]    2:     0x7fabfb8f4efc - std::sys_common::backtrace::_print_fmt::hbb566ca2fd60b76a
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]    3:     0x7fabfb8f4efc - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hca47315a43d59c89
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]    4:     0x7fabfb95b15c - core::fmt::rt::Argument::fmt::h291f645ad8573757
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/core/src/fmt/rt.rs:138:9
[INFO] [stderr]    5:     0x7fabfb95b15c - core::fmt::write::h9b76cf5ceec3eda1
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/core/src/fmt/mod.rs:1094:21
[INFO] [stderr]    6:     0x7fabfb8e7b1e - std::io::Write::write_fmt::hc4ac74baeb81817b
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/std/src/io/mod.rs:1714:15
[INFO] [stderr]    7:     0x7fabfb8f4ce4 - std::sys_common::backtrace::_print::h53287555ce02ffe8
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]    8:     0x7fabfb8f4ce4 - std::sys_common::backtrace::print::h4ce9b6d019078194
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]    9:     0x7fabfb8f7dda - std::panicking::panic_hook_with_disk_dump::{{closure}}::h6345d620bf90f980
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/std/src/panicking.rs:280:22
[INFO] [stderr]   10:     0x7fabfb8f7ad5 - std::panicking::panic_hook_with_disk_dump::h881dcb47bef2b023
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/std/src/panicking.rs:314:9
[INFO] [stderr]   11:     0x7fabfeca3b39 - rustc_driver_impl[507b66162c0f18a9]::install_ice_hook::{closure#0}
[INFO] [stderr]   12:     0x7fabfb8f8693 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hc6a6af3e65f55d16
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/alloc/src/boxed.rs:2021:9
[INFO] [stderr]   13:     0x7fabfb8f8693 - std::panicking::rust_panic_with_hook::h4685f1313004386b
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/std/src/panicking.rs:757:13
[INFO] [stderr]   14:     0x7fabfb8f83c6 - std::panicking::begin_panic_handler::{{closure}}::h540f1f43109c9ae2
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/std/src/panicking.rs:623:13
[INFO] [stderr]   15:     0x7fabfb8f5426 - std::sys_common::backtrace::__rust_end_short_backtrace::h32246c56143d8eeb
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/std/src/sys_common/backtrace.rs:170:18
[INFO] [stderr]   16:     0x7fabfb8f8152 - rust_begin_unwind
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/std/src/panicking.rs:619:5
[INFO] [stderr]   17:     0x7fabfb957505 - core::panicking::panic_fmt::h069b828d25155aac
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/core/src/panicking.rs:72:14
[INFO] [stderr]   18:     0x7fabfb9575a3 - core::panicking::panic::h3ad47f261da50cd7
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/core/src/panicking.rs:127:5
[INFO] [stderr]   19:     0x7fabfe08736e - <rustc_span[99eb23e55edf5fe2]::hygiene::HygieneEncodeContext>::encode::<(&mut rustc_metadata[e4098dc061e3aa70]::rmeta::encoder::EncodeContext, &mut rustc_metadata[e4098dc061e3aa70]::rmeta::table::TableBuilder<u32, core[90d212346a370c68]::option::Option<rustc_metadata[e4098dc061e3aa70]::rmeta::LazyValue<rustc_span[99eb23e55edf5fe2]::hygiene::SyntaxContextData>>>, &mut rustc_metadata[e4098dc061e3aa70]::rmeta::table::TableBuilder<rustc_span[99eb23e55edf5fe2]::hygiene::ExpnIndex, core[90d212346a370c68]::option::Option<rustc_metadata[e4098dc061e3aa70]::rmeta::LazyValue<rustc_span[99eb23e55edf5fe2]::hygiene::ExpnData>>>, &mut rustc_metadata[e4098dc061e3aa70]::rmeta::table::TableBuilder<rustc_span[99eb23e55edf5fe2]::hygiene::ExpnIndex, core[90d212346a370c68]::option::Option<rustc_metadata[e4098dc061e3aa70]::rmeta::LazyValue<rustc_span[99eb23e55edf5fe2]::hygiene::ExpnHash>>>), <rustc_metadata[e4098dc061e3aa70]::rmeta::encoder::EncodeContext>::encode_hygiene::{closure#0}, <rustc_metadata[e4098dc061e3aa70]::rmeta::encoder::EncodeContext>::encode_hygiene::{closure#1}>
[INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmetabxn43J"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] error: could not compile `serde` (lib) due to previous error
[INFO] running `Command { std: "docker" "inspect" "8127792bd48d2b2ca259aff686373b0f93c32b9214d69c094cab3dbd54cd7a15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8127792bd48d2b2ca259aff686373b0f93c32b9214d69c094cab3dbd54cd7a15", kill_on_drop: false }`
[INFO] [stdout] 8127792bd48d2b2ca259aff686373b0f93c32b9214d69c094cab3dbd54cd7a15