[INFO] cloning repository https://github.com/luyikk/kcp_client
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luyikk/kcp_client" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluyikk%2Fkcp_client", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluyikk%2Fkcp_client'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 700ee65d105b765b247a83602ca654967e21f050
[INFO] testing luyikk/kcp_client against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluyikk%2Fkcp_client" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/luyikk/kcp_client
[INFO] finished tweaking git repo https://github.com/luyikk/kcp_client
[INFO] tweaked toml for git repo https://github.com/luyikk/kcp_client written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/luyikk/kcp_client on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/luyikk/kcp_client 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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f6a57778d1bc691580c9adfc34037b91dbbccc0c23776d9aeafefea5726a849a
[INFO] running `Command { std: "docker" "start" "-a" "f6a57778d1bc691580c9adfc34037b91dbbccc0c23776d9aeafefea5726a849a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6a57778d1bc691580c9adfc34037b91dbbccc0c23776d9aeafefea5726a849a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6a57778d1bc691580c9adfc34037b91dbbccc0c23776d9aeafefea5726a849a", kill_on_drop: false }`
[INFO] [stdout] f6a57778d1bc691580c9adfc34037b91dbbccc0c23776d9aeafefea5726a849a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c9fc72268c9d3646cadd6d97e49b5e500f7f3aedb5e98681ddebc52f1f110616
[INFO] running `Command { std: "docker" "start" "-a" "c9fc72268c9d3646cadd6d97e49b5e500f7f3aedb5e98681ddebc52f1f110616", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling chrono v0.4.15
[INFO] [stderr]    Compiling kcpclient v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.97s
[INFO] running `Command { std: "docker" "inspect" "c9fc72268c9d3646cadd6d97e49b5e500f7f3aedb5e98681ddebc52f1f110616", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9fc72268c9d3646cadd6d97e49b5e500f7f3aedb5e98681ddebc52f1f110616", kill_on_drop: false }`
[INFO] [stdout] c9fc72268c9d3646cadd6d97e49b5e500f7f3aedb5e98681ddebc52f1f110616
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a98cef4494f7d1bc9387bae753578d20f50becdbfc413a4c151d75e1f03528e7
[INFO] running `Command { std: "docker" "start" "-a" "a98cef4494f7d1bc9387bae753578d20f50becdbfc413a4c151d75e1f03528e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling kcpclient v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "a98cef4494f7d1bc9387bae753578d20f50becdbfc413a4c151d75e1f03528e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a98cef4494f7d1bc9387bae753578d20f50becdbfc413a4c151d75e1f03528e7", kill_on_drop: false }`
[INFO] [stdout] a98cef4494f7d1bc9387bae753578d20f50becdbfc413a4c151d75e1f03528e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 382b1816585b56f303fa3d35f4100a2974c3275d4e8a6c5678ac03307552df3e
[INFO] running `Command { std: "docker" "start" "-a" "382b1816585b56f303fa3d35f4100a2974c3275d4e8a6c5678ac03307552df3e", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/kcpclient-620d8b8cf5daf015)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests kcpclient
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 6) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 6) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] 
[INFO] [stdout] thread 'main' (56) panicked at src/lib.rs:18:29:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 111, kind: ConnectionRefused, message: "Connection refused" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x555dec0705a2 - std::backtrace_rs::backtrace::libunwind::trace::h589a96ef7638b383
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x555dec0705a2 - std::backtrace_rs::backtrace::trace_unsynchronized::h23a30a7548c40de4
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x555dec0705a2 - std::sys::backtrace::_print_fmt::h87dabd6535c8c07a
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x555dec0705a2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hffd20ad4e5eca8ab
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x555dec07fecf - core::fmt::rt::Argument::fmt::h75c83e3fd5ce2419
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x555dec07fecf - core::fmt::write::h6d9d3a7cfd7b84f5
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/fmt/mod.rs:1468:25
[INFO] [stdout]    6:     0x555dec04ba83 - std::io::default_write_fmt::ha7130bf70117e1da
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x555dec04ba83 - std::io::Write::write_fmt::h22459ad26fe60c51
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x555dec0521a2 - std::sys::backtrace::BacktraceLock::print::hb28797143397220e
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x555dec05449f - std::panicking::default_hook::{{closure}}::h7555113b62983743
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x555dec0542f9 - std::panicking::default_hook::h2714b564abe8d914
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:328:9
[INFO] [stdout]   11:     0x555dec054a75 - std::panicking::panic_with_hook::h190dc82263685ec5
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:834:13
[INFO] [stdout]   12:     0x555dec05490a - std::panicking::panic_handler::{{closure}}::h8b036a1b366643ac
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:707:13
[INFO] [stdout]   13:     0x555dec0522d9 - std::sys::backtrace::__rust_end_short_backtrace::h45affcfc0c830da8
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   14:     0x555dec03ff4d - __rustc[9b67c8562bba447b]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:698:5
[INFO] [stdout]   15:     0x555dec084700 - core::panicking::panic_fmt::hc084f85b1e76c16d
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/panicking.rs:75:14
[INFO] [stdout]   16:     0x555dec083cf6 - core::result::unwrap_failed::hf926a4254073b4aa
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/result.rs:1852:5
[INFO] [stdout]   17:     0x555dec01ec82 - rust_out::main::h542e0f1f2a7f6b11
[INFO] [stdout]   18:     0x555dec01c493 - core::ops::function::FnOnce::call_once::h21e4d13f24e06a24
[INFO] [stdout]   19:     0x555dec01a956 - std::sys::backtrace::__rust_begin_short_backtrace::h603ef4a30a4f78fd
[INFO] [stdout]   20:     0x555dec01a1d9 - std::rt::lang_start::{{closure}}::h433d00c5fb7f893d
[INFO] [stdout]   21:     0x555dec04d2f0 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hcc75fa61d21ecbe5
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/ops/function.rs:290:21
[INFO] [stdout]   22:     0x555dec04d2f0 - std::panicking::catch_unwind::do_call::h38c051a071ca3bc0
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:590:40
[INFO] [stdout]   23:     0x555dec04d2f0 - std::panicking::catch_unwind::hede2a2f6f4519f78
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:553:19
[INFO] [stdout]   24:     0x555dec04d2f0 - std::panic::catch_unwind::h94765a19f52c0a43
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panic.rs:359:14
[INFO] [stdout]   25:     0x555dec04d2f0 - std::rt::lang_start_internal::{{closure}}::hb89c21d557706591
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/rt.rs:175:24
[INFO] [stdout]   26:     0x555dec04d2f0 - std::panicking::catch_unwind::do_call::h50685f05733aeeef
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:590:40
[INFO] [stdout]   27:     0x555dec04d2f0 - std::panicking::catch_unwind::hf9ba9716b02e6738
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:553:19
[INFO] [stdout]   28:     0x555dec04d2f0 - std::panic::catch_unwind::h29770e281302b24d
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panic.rs:359:14
[INFO] [stdout]   29:     0x555dec04d2f0 - std::rt::lang_start_internal::hd5573b1f5f705a2a
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/rt.rs:171:5
[INFO] [stdout]   30:     0x555dec01a1c1 - std::rt::lang_start::habd89dad5a59b012
[INFO] [stdout]   31:     0x555dec01f925 - main
[INFO] [stdout]   32:     0x73963eaad1ca - <unknown>
[INFO] [stdout]   33:     0x73963eaad28b - __libc_start_main
[INFO] [stdout]   34:     0x555dec019ed5 - _start
[INFO] [stdout]   35:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 6)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.56s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "382b1816585b56f303fa3d35f4100a2974c3275d4e8a6c5678ac03307552df3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "382b1816585b56f303fa3d35f4100a2974c3275d4e8a6c5678ac03307552df3e", kill_on_drop: false }`
[INFO] [stdout] 382b1816585b56f303fa3d35f4100a2974c3275d4e8a6c5678ac03307552df3e