[INFO] cloning repository https://github.com/tshaynik/netkitten
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tshaynik/netkitten" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftshaynik%2Fnetkitten", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftshaynik%2Fnetkitten'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dde8bcbf7e0354fe185cc3194ad0c64ce893fc7b
[INFO] checking tshaynik/netkitten against try#81185c2d21df0ba45fd33e65bbdce76dc0d89bd9 for pr-139646
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftshaynik%2Fnetkitten" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tshaynik/netkitten on toolchain 81185c2d21df0ba45fd33e65bbdce76dc0d89bd9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+81185c2d21df0ba45fd33e65bbdce76dc0d89bd9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tshaynik/netkitten
[INFO] finished tweaking git repo https://github.com/tshaynik/netkitten
[INFO] tweaked toml for git repo https://github.com/tshaynik/netkitten written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/tshaynik/netkitten 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" "+81185c2d21df0ba45fd33e65bbdce76dc0d89bd9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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 anyhow v1.0.38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+81185c2d21df0ba45fd33e65bbdce76dc0d89bd9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8461ef4f3475518c3f6d02f1a5e50c7d585c750040459dfa726a72a664657180
[INFO] running `Command { std: "docker" "start" "-a" "8461ef4f3475518c3f6d02f1a5e50c7d585c750040459dfa726a72a664657180", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8461ef4f3475518c3f6d02f1a5e50c7d585c750040459dfa726a72a664657180", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8461ef4f3475518c3f6d02f1a5e50c7d585c750040459dfa726a72a664657180", kill_on_drop: false }`
[INFO] [stdout] 8461ef4f3475518c3f6d02f1a5e50c7d585c750040459dfa726a72a664657180
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+81185c2d21df0ba45fd33e65bbdce76dc0d89bd9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 00e21064206ccae398171d0ba0a87296ea7fafdd2fae3d9eec6a8989b252681c
[INFO] running `Command { std: "docker" "start" "-a" "00e21064206ccae398171d0ba0a87296ea7fafdd2fae3d9eec6a8989b252681c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking netkitten v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `execute` and `keep_open` are never read
[INFO] [stdout]   --> src/connect.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub struct ConnectOpts {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 8  |     #[structopt(short, long)]
[INFO] [stdout] 9  |     execute: Option<String>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 10 |     #[structopt(short, long)]
[INFO] [stdout] 11 |     keep_open: bool,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ConnectOpts` 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: fields `execute` and `keep_open` are never read
[INFO] [stdout]   --> src/connect.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub struct ConnectOpts {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 8  |     #[structopt(short, long)]
[INFO] [stdout] 9  |     execute: Option<String>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 10 |     #[structopt(short, long)]
[INFO] [stdout] 11 |     keep_open: bool,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ConnectOpts` 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: field `execute` is never read
[INFO] [stdout]   --> src/listen.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct ListenOpts {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 9  |     #[structopt(short, long)]
[INFO] [stdout] 10 |     execute: Option<String>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ListenOpts` 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: field `execute` is never read
[INFO] [stdout]   --> src/listen.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct ListenOpts {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 9  |     #[structopt(short, long)]
[INFO] [stdout] 10 |     execute: Option<String>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ListenOpts` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.28s
[INFO] running `Command { std: "docker" "inspect" "00e21064206ccae398171d0ba0a87296ea7fafdd2fae3d9eec6a8989b252681c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00e21064206ccae398171d0ba0a87296ea7fafdd2fae3d9eec6a8989b252681c", kill_on_drop: false }`
[INFO] [stdout] 00e21064206ccae398171d0ba0a87296ea7fafdd2fae3d9eec6a8989b252681c