[INFO] cloning repository https://github.com/LiptonB/nettap
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LiptonB/nettap" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLiptonB%2Fnettap", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLiptonB%2Fnettap'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 75cec1573fc843e3441d43a96904b809448932e7
[INFO] testing LiptonB/nettap against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLiptonB%2Fnettap" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LiptonB/nettap on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LiptonB/nettap
[INFO] finished tweaking git repo https://github.com/LiptonB/nettap
[INFO] tweaked toml for git repo https://github.com/LiptonB/nettap written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/LiptonB/nettap already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-test v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dec6a8c1f14116e1141ec84b4569b477d7f02704c94ec9fb770ce8717c8d8dd3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "dec6a8c1f14116e1141ec84b4569b477d7f02704c94ec9fb770ce8717c8d8dd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dec6a8c1f14116e1141ec84b4569b477d7f02704c94ec9fb770ce8717c8d8dd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dec6a8c1f14116e1141ec84b4569b477d7f02704c94ec9fb770ce8717c8d8dd3", kill_on_drop: false }`
[INFO] [stdout] dec6a8c1f14116e1141ec84b4569b477d7f02704c94ec9fb770ce8717c8d8dd3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b1e54c90861f655d5919acf8802bf2000f90a6e8d99e35c2e5902c8613bcdc3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3b1e54c90861f655d5919acf8802bf2000f90a6e8d99e35c2e5902c8613bcdc3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.59
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling serde v1.0.121
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling byteorder v1.4.2
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling pin-project-lite v0.1.11
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]    Compiling tokio v1.1.0
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling tokio v0.2.24
[INFO] [stderr]    Compiling log v0.4.13
[INFO] [stderr]    Compiling tracing-core v0.1.17
[INFO] [stderr]    Compiling sharded-slab v0.1.1
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling signal-hook-registry v1.3.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling parking_lot_core v0.8.2
[INFO] [stderr]    Compiling mio v0.7.7
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling tracing-log v0.1.1
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling tokio-test v0.2.1
[INFO] [stderr]    Compiling tracing-serde v0.1.2
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling structopt v0.2.18
[INFO] [stderr]    Compiling futures-macro v0.3.12
[INFO] [stderr]    Compiling tokio-macros v1.0.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling async-stream-impl v0.3.0
[INFO] [stderr]    Compiling async-stream v0.3.0
[INFO] [stderr]    Compiling futures-util v0.3.12
[INFO] [stderr]    Compiling tracing v0.1.22
[INFO] [stderr]    Compiling tracing-subscriber v0.2.15
[INFO] [stderr]    Compiling futures-executor v0.3.12
[INFO] [stderr]    Compiling futures v0.3.12
[INFO] [stderr]    Compiling tokio-stream v0.1.2
[INFO] [stderr]    Compiling tokio-util v0.6.2
[INFO] [stderr]    Compiling nettap v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `TokioConnection`
[INFO] [stdout]    --> src/connection/tokio_connection.rs:102:16
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub struct TokioConnection<R, W>
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `ConnectionData`
[INFO] [stdout]    --> src/connection/tokio_connection.rs:112:16
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub struct ConnectionData {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/connection/tokio_connection.rs:121:16
[INFO] [stdout]     |
[INFO] [stdout] 121 |         pub fn new(reader: R, writer: W) -> (Self, ConnectionData) {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `run`
[INFO] [stdout]    --> src/connection/tokio_connection.rs:136:22
[INFO] [stdout]     |
[INFO] [stdout] 136 |         pub async fn run(mut self) -> Result<()> {
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 46.11s
[INFO] running `Command { std: "docker" "inspect" "3b1e54c90861f655d5919acf8802bf2000f90a6e8d99e35c2e5902c8613bcdc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b1e54c90861f655d5919acf8802bf2000f90a6e8d99e35c2e5902c8613bcdc3", kill_on_drop: false }`
[INFO] [stdout] 3b1e54c90861f655d5919acf8802bf2000f90a6e8d99e35c2e5902c8613bcdc3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0da595c07182d236ffb336f74fc88db1ed4d15903ab2aab66457439b9ba09499
[INFO] running `Command { std: "docker" "start" "-a" "0da595c07182d236ffb336f74fc88db1ed4d15903ab2aab66457439b9ba09499", kill_on_drop: false }`
[INFO] [stderr]    Compiling nettap v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `TokioConnection`
[INFO] [stdout]    --> src/connection/tokio_connection.rs:102:16
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub struct TokioConnection<R, W>
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `ConnectionData`
[INFO] [stdout]    --> src/connection/tokio_connection.rs:112:16
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub struct ConnectionData {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/connection/tokio_connection.rs:121:16
[INFO] [stdout]     |
[INFO] [stdout] 121 |         pub fn new(reader: R, writer: W) -> (Self, ConnectionData) {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `run`
[INFO] [stdout]    --> src/connection/tokio_connection.rs:136:22
[INFO] [stdout]     |
[INFO] [stdout] 136 |         pub async fn run(mut self) -> Result<()> {
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.32s
[INFO] running `Command { std: "docker" "inspect" "0da595c07182d236ffb336f74fc88db1ed4d15903ab2aab66457439b9ba09499", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0da595c07182d236ffb336f74fc88db1ed4d15903ab2aab66457439b9ba09499", kill_on_drop: false }`
[INFO] [stdout] 0da595c07182d236ffb336f74fc88db1ed4d15903ab2aab66457439b9ba09499
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3acf503c1b33dccf35697b529e89318d9bdf7b853d23ac073f25dd0b614b8cdc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3acf503c1b33dccf35697b529e89318d9bdf7b853d23ac073f25dd0b614b8cdc", kill_on_drop: false }`
[INFO] [stderr] warning: struct is never constructed: `TokioConnection`
[INFO] [stderr]    --> src/connection/tokio_connection.rs:102:16
[INFO] [stderr]     |
[INFO] [stderr] 102 |     pub struct TokioConnection<R, W>
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ConnectionData`
[INFO] [stderr]    --> src/connection/tokio_connection.rs:112:16
[INFO] [stderr]     |
[INFO] [stderr] 112 |     pub struct ConnectionData {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/connection/tokio_connection.rs:121:16
[INFO] [stderr]     |
[INFO] [stderr] 121 |         pub fn new(reader: R, writer: W) -> (Self, ConnectionData) {
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `run`
[INFO] [stderr]    --> src/connection/tokio_connection.rs:136:22
[INFO] [stderr]     |
[INFO] [stderr] 136 |         pub async fn run(mut self) -> Result<()> {
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/nettap-ac4704a537fe3fd0)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test coordinator::tests::send_succeeds ... ok
[INFO] [stdout] test coordinator::tests::no_conns_succeeds ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3acf503c1b33dccf35697b529e89318d9bdf7b853d23ac073f25dd0b614b8cdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3acf503c1b33dccf35697b529e89318d9bdf7b853d23ac073f25dd0b614b8cdc", kill_on_drop: false }`
[INFO] [stdout] 3acf503c1b33dccf35697b529e89318d9bdf7b853d23ac073f25dd0b614b8cdc