[INFO] fetching crate rust_tcp_ipc 0.3.1...
[INFO] checking rust_tcp_ipc-0.3.1 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate rust_tcp_ipc 0.3.1 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate rust_tcp_ipc 0.3.1
[INFO] finished tweaking crates.io crate rust_tcp_ipc 0.3.1
[INFO] tweaked toml for crates.io crate rust_tcp_ipc 0.3.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust_tcp_ipc 0.3.1 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 50 packages to latest compatible versions
[INFO] [stderr]       Adding simplelog v0.5.3 (available: v0.12.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 12c74307621e76657db01e365821141e034b1f9789836b2c3ce25e002e9d482c
[INFO] running `Command { std: "docker" "start" "-a" "12c74307621e76657db01e365821141e034b1f9789836b2c3ce25e002e9d482c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "12c74307621e76657db01e365821141e034b1f9789836b2c3ce25e002e9d482c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12c74307621e76657db01e365821141e034b1f9789836b2c3ce25e002e9d482c", kill_on_drop: false }`
[INFO] [stdout] 12c74307621e76657db01e365821141e034b1f9789836b2c3ce25e002e9d482c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a4d21fc98ea3c6a205eea876160b4b7aab1d0e76d601f0eb734f2ff30454829a
[INFO] running `Command { std: "docker" "start" "-a" "a4d21fc98ea3c6a205eea876160b4b7aab1d0e76d601f0eb734f2ff30454829a", kill_on_drop: false }`
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking chrono v0.4.41
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking rust_tcp_ipc v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variants `Start` and `Funny` are never constructed
[INFO] [stdout]  --> src/tests/example_protocol.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum CommandsExample {
[INFO] [stdout]   |          --------------- variants in this enum
[INFO] [stdout] 5 |     Start, // = [48, b'0'],
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 6 |     Funny, // = [b'0', b'0'],
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `CommandsExample` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Idle` and `Working` are never constructed
[INFO] [stdout]   --> src/tests/example_protocol.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub enum BusyStatesExample {
[INFO] [stdout]    |          ----------------- variants in this enum
[INFO] [stdout] 10 |     Idle,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 11 |     Working,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BusyStatesExample` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ProtocolExample` is never used
[INFO] [stdout]   --> src/tests/example_protocol.rs:18:10
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub enum ProtocolExample {}
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `speed_check_tcp_minimal` is never used
[INFO] [stdout]  --> src/tests/speed_comparison.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn speed_check_tcp_minimal() {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking simplelog v0.5.3
[INFO] [stdout] warning: variant `Working` is never constructed
[INFO] [stdout]   --> src/tests/example_protocol.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub enum BusyStatesExample {
[INFO] [stdout]    |          ----------------- variant in this enum
[INFO] [stdout] 10 |     Idle,
[INFO] [stdout] 11 |     Working,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BusyStatesExample` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `speed_check_tcp_minimal` is never used
[INFO] [stdout]  --> src/tests/speed_comparison.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn speed_check_tcp_minimal() {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.79s
[INFO] running `Command { std: "docker" "inspect" "a4d21fc98ea3c6a205eea876160b4b7aab1d0e76d601f0eb734f2ff30454829a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4d21fc98ea3c6a205eea876160b4b7aab1d0e76d601f0eb734f2ff30454829a", kill_on_drop: false }`
[INFO] [stdout] a4d21fc98ea3c6a205eea876160b4b7aab1d0e76d601f0eb734f2ff30454829a