[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#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvoelklmichael%2Frust_tcp_data_share" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/voelklmichael/rust_tcp_data_share on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-11/source/Cargo.toml
[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: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cast v0.1.0
[INFO] [stderr]   Downloaded criterion v0.1.2
[INFO] [stderr]   Downloaded criterion-plot v0.1.3
[INFO] [stderr]   Downloaded criterion-stats v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9568293965d8ef21302c59d03090009eb1de47ad8ddfb40ddc71f2de906cd661
[INFO] running `Command { std: "docker" "start" "-a" "9568293965d8ef21302c59d03090009eb1de47ad8ddfb40ddc71f2de906cd661", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9568293965d8ef21302c59d03090009eb1de47ad8ddfb40ddc71f2de906cd661", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9568293965d8ef21302c59d03090009eb1de47ad8ddfb40ddc71f2de906cd661", kill_on_drop: false }`
[INFO] [stdout] 9568293965d8ef21302c59d03090009eb1de47ad8ddfb40ddc71f2de906cd661
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cda0c3b72e6f856064fe4f3addc7dfbde494c259b15309c6edbde3f4fa8aeb6a
[INFO] running `Command { std: "docker" "start" "-a" "cda0c3b72e6f856064fe4f3addc7dfbde494c259b15309c6edbde3f4fa8aeb6a", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr] note: Switching to Edition 2021 will enable the use of the version 2 feature resolver in Cargo.
[INFO] [stderr] This may cause some dependencies to be built with fewer features enabled than previously.
[INFO] [stderr] More information about the resolver changes may be found at https://doc.rust-lang.org/nightly/edition-guide/rust-2021/default-cargo-resolver.html
[INFO] [stderr] When building the following dependencies, the given features will no longer be used:
[INFO] [stderr] 
[INFO] [stderr]   log v0.4.6: std
[INFO] [stderr] 
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling cc v1.0.28
[INFO] [stderr]    Compiling autocfg v0.1.1
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling serde v1.0.82
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]     Checking rustc-demangle v0.1.11
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]     Checking cast v0.1.0
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking byteorder v1.2.7
[INFO] [stderr]     Checking slab v0.4.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking thread-scoped v1.0.2
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]     Checking term v0.4.6
[INFO] [stderr]     Checking itertools v0.4.19
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking itertools v0.5.10
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]     Checking criterion-plot v0.1.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]     Checking rand v0.4.3
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking num_cpus v0.2.13
[INFO] [stderr]     Checking time v0.1.41
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling syn v0.15.23
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking simplelog v0.4.4
[INFO] [stderr]     Checking rust_tcp_ipc v0.3.1 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking criterion-stats v0.1.3
[INFO] [stderr]     Checking serde_json v1.0.33
[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] [stderr]    Migrating examples/reasonable_example/main.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating benches/example_protocol.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating benches/speed_comparison.rs from 2018 edition to 2021
[INFO] [stdout] warning: variant is never constructed: `Working`
[INFO] [stdout]   --> benches/example_protocol.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Working,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `speed_check_tcp_standard`
[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] 
[INFO] [stdout] warning: function is never used: `speed_check_rust_tcp_ipc`
[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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.23s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking rust_tcp_ipc v0.3.1 (/tmp/fixit)
[INFO] [stdout] warning: variant is never constructed: `Working`
[INFO] [stdout]   --> benches/example_protocol.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Working,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `speed_check_tcp_standard`
[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] 
[INFO] [stdout] warning: function is never used: `speed_check_rust_tcp_ipc`
[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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "cda0c3b72e6f856064fe4f3addc7dfbde494c259b15309c6edbde3f4fa8aeb6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cda0c3b72e6f856064fe4f3addc7dfbde494c259b15309c6edbde3f4fa8aeb6a", kill_on_drop: false }`
[INFO] [stdout] cda0c3b72e6f856064fe4f3addc7dfbde494c259b15309c6edbde3f4fa8aeb6a