[INFO] cloning repository https://github.com/voelklmichael/rust_tcp_data_share
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/voelklmichael/rust_tcp_data_share" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvoelklmichael%2Frust_tcp_data_share", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvoelklmichael%2Frust_tcp_data_share'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 49486b4d665514132191f0cbbf1721d098adbb0d
[INFO] checking voelklmichael/rust_tcp_data_share against try#e90f1ff63e694965281f833819a486da29772bdf for pr-146167
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvoelklmichael%2Frust_tcp_data_share" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/voelklmichael/rust_tcp_data_share
[INFO] finished tweaking git repo https://github.com/voelklmichael/rust_tcp_data_share
[INFO] tweaked toml for git repo https://github.com/voelklmichael/rust_tcp_data_share written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/voelklmichael/rust_tcp_data_share on toolchain e90f1ff63e694965281f833819a486da29772bdf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e90f1ff63e694965281f833819a486da29772bdf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/voelklmichael/rust_tcp_data_share 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" "+e90f1ff63e694965281f833819a486da29772bdf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded time v0.1.41
[INFO] [stderr]   Downloaded simplelog v0.4.4
[INFO] [stderr]   Downloaded backtrace v0.3.13
[INFO] [stderr]   Downloaded criterion-plot v0.1.3
[INFO] [stderr]   Downloaded criterion-stats v0.1.3
[INFO] [stderr]   Downloaded itertools v0.4.19
[INFO] [stderr]   Downloaded term v0.4.6
[INFO] [stderr]   Downloaded rustc-demangle v0.1.11
[INFO] [stderr]   Downloaded itertools v0.5.10
[INFO] [stderr]   Downloaded isatty v0.1.9
[INFO] [stderr]   Downloaded redox_syscall v0.1.44
[INFO] [stderr]   Downloaded criterion v0.1.2
[INFO] [stderr]   Downloaded cast v0.1.0
[INFO] [stderr]   Downloaded thread-scoped v1.0.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+e90f1ff63e694965281f833819a486da29772bdf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4be62ad0e8655a7955492a3ccf7509e665e0d58f4b0aa9d908fc438c2440a539
[INFO] running `Command { std: "docker" "start" "-a" "4be62ad0e8655a7955492a3ccf7509e665e0d58f4b0aa9d908fc438c2440a539", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4be62ad0e8655a7955492a3ccf7509e665e0d58f4b0aa9d908fc438c2440a539", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4be62ad0e8655a7955492a3ccf7509e665e0d58f4b0aa9d908fc438c2440a539", kill_on_drop: false }`
[INFO] [stdout] 4be62ad0e8655a7955492a3ccf7509e665e0d58f4b0aa9d908fc438c2440a539
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+e90f1ff63e694965281f833819a486da29772bdf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea0a9a0e71ffc31f5108a31f2d3e0a4c13be272f709880a7b6c68f14ca91248a
[INFO] running `Command { std: "docker" "start" "-a" "ea0a9a0e71ffc31f5108a31f2d3e0a4c13be272f709880a7b6c68f14ca91248a", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]     Checking rand v0.4.3
[INFO] [stderr]    Compiling syn v0.15.23
[INFO] [stderr]     Checking rustc-demangle v0.1.11
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking cast v0.1.0
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking itertools v0.5.10
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking num_cpus v0.2.13
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking time v0.1.41
[INFO] [stderr]     Checking term v0.4.6
[INFO] [stderr]     Checking slab v0.4.1
[INFO] [stderr]     Checking thread-scoped v1.0.2
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking serde_json v1.0.33
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking simplelog v0.4.4
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking criterion-stats v0.1.3
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]     Checking itertools v0.4.19
[INFO] [stderr]     Checking criterion-plot v0.1.3
[INFO] [stderr]     Checking rust_tcp_ipc v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.82
[INFO] [stderr]     Checking failure v0.1.3
[INFO] [stderr]     Checking criterion v0.1.2
[INFO] [stdout] warning: function `speed_check_tcp_standard` is never used
[INFO] [stdout]  --> benches/speed_comparison.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn speed_check_tcp_standard(c: &mut criterion::Criterion) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `speed_check_rust_tcp_ipc` is never used
[INFO] [stdout]    --> benches/speed_comparison.rs:178:4
[INFO] [stdout]     |
[INFO] [stdout] 178 | fn speed_check_rust_tcp_ipc(c: &mut criterion::Criterion) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `CommandsExample` is never used
[INFO] [stdout]  --> benches/example_protocol.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum CommandsExample {
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `BusyStatesExample` is never used
[INFO] [stdout]  --> benches/example_protocol.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub enum BusyStatesExample {
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LENGTH_SIZE_EXAMPLE` is never used
[INFO] [stdout]   --> benches/example_protocol.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const LENGTH_SIZE_EXAMPLE: usize = 3;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `COMMAND_SIZE_EXAMPLE` is never used
[INFO] [stdout]   --> benches/example_protocol.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const COMMAND_SIZE_EXAMPLE: usize = 2;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `HEADER_SIZE_EXAMPLE` is never used
[INFO] [stdout]   --> benches/example_protocol.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | const HEADER_SIZE_EXAMPLE: usize = LENGTH_SIZE_EXAMPLE + COMMAND_SIZE_EXAMPLE;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ProtocolExample` is never used
[INFO] [stdout]   --> benches/example_protocol.rs:18:10
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub enum ProtocolExample {}
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.57s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.1.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "ea0a9a0e71ffc31f5108a31f2d3e0a4c13be272f709880a7b6c68f14ca91248a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea0a9a0e71ffc31f5108a31f2d3e0a4c13be272f709880a7b6c68f14ca91248a", kill_on_drop: false }`
[INFO] [stdout] ea0a9a0e71ffc31f5108a31f2d3e0a4c13be272f709880a7b6c68f14ca91248a