[INFO] cloning repository https://github.com/preboy/rworld
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/preboy/rworld" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpreboy%2Frworld", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpreboy%2Frworld'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b3780d47e6cc9861262c0f86007f8f92aac76700
[INFO] testing preboy/rworld against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpreboy%2Frworld" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/preboy/rworld on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/preboy/rworld
[INFO] finished tweaking git repo https://github.com/preboy/rworld
[INFO] tweaked toml for git repo https://github.com/preboy/rworld written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/preboy/rworld already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a903e7563914953f8f897ae935f9ef37583a5abbc8fd98694eadb45cdfb6c36e
[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" "a903e7563914953f8f897ae935f9ef37583a5abbc8fd98694eadb45cdfb6c36e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a903e7563914953f8f897ae935f9ef37583a5abbc8fd98694eadb45cdfb6c36e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a903e7563914953f8f897ae935f9ef37583a5abbc8fd98694eadb45cdfb6c36e", kill_on_drop: false }`
[INFO] [stdout] a903e7563914953f8f897ae935f9ef37583a5abbc8fd98694eadb45cdfb6c36e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52840d93133d0064180f392a803e860ec3f29f8d82e257cd2de7429522b26ef8
[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" "52840d93133d0064180f392a803e860ec3f29f8d82e257cd2de7429522b26ef8", kill_on_drop: false }`
[INFO] [stderr]    Compiling rworld v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `post`
[INFO] [stdout]   --> src/looper.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn post(&self, v: i32) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `TCPClient`
[INFO] [stdout]  --> src/network/tcp_client.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct TCPClient {}
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/network/tcp_client.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn new(addr: String) -> TCPClient {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `connect`
[INFO] [stdout]  --> src/network/tcp_client.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn connect() {}
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `post`
[INFO] [stdout]   --> src/network/tcp_server.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 92 |     pub fn post(&mut self, data: &[u8]) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]    --> src/network/tcp_server.rs:112:12
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub fn get(&mut self, id: u32) -> Option<&Session> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `del`
[INFO] [stdout]    --> src/network/tcp_server.rs:116:12
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub fn del(&mut self, id: u32) {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.83s
[INFO] running `Command { std: "docker" "inspect" "52840d93133d0064180f392a803e860ec3f29f8d82e257cd2de7429522b26ef8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52840d93133d0064180f392a803e860ec3f29f8d82e257cd2de7429522b26ef8", kill_on_drop: false }`
[INFO] [stdout] 52840d93133d0064180f392a803e860ec3f29f8d82e257cd2de7429522b26ef8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] decd0bd96514050864ec2e40b69b48a8d19075d47469ccf5f19e070b11a74303
[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" "decd0bd96514050864ec2e40b69b48a8d19075d47469ccf5f19e070b11a74303", kill_on_drop: false }`
[INFO] [stderr]    Compiling rworld v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `post`
[INFO] [stdout]   --> src/looper.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn post(&self, v: i32) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `TCPClient`
[INFO] [stdout]  --> src/network/tcp_client.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct TCPClient {}
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/network/tcp_client.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn new(addr: String) -> TCPClient {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `connect`
[INFO] [stdout]  --> src/network/tcp_client.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn connect() {}
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `post`
[INFO] [stdout]   --> src/network/tcp_server.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 92 |     pub fn post(&mut self, data: &[u8]) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]    --> src/network/tcp_server.rs:112:12
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub fn get(&mut self, id: u32) -> Option<&Session> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `del`
[INFO] [stdout]    --> src/network/tcp_server.rs:116:12
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub fn del(&mut self, id: u32) {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "decd0bd96514050864ec2e40b69b48a8d19075d47469ccf5f19e070b11a74303", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "decd0bd96514050864ec2e40b69b48a8d19075d47469ccf5f19e070b11a74303", kill_on_drop: false }`
[INFO] [stdout] decd0bd96514050864ec2e40b69b48a8d19075d47469ccf5f19e070b11a74303
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", 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] f315f7f44b7df4cb52d913c497f909000658d34d0f642a1238780042ebd88460
[INFO] running `Command { std: "docker" "start" "-a" "f315f7f44b7df4cb52d913c497f909000658d34d0f642a1238780042ebd88460", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `post`
[INFO] [stderr]   --> src/looper.rs:46:12
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub fn post(&self, v: i32) {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `TCPClient`
[INFO] [stderr]  --> src/network/tcp_client.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct TCPClient {}
[INFO] [stderr]   |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]  --> src/network/tcp_client.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 |     pub fn new(addr: String) -> TCPClient {
[INFO] [stderr]   |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `connect`
[INFO] [stderr]  --> src/network/tcp_client.rs:9:12
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub fn connect() {}
[INFO] [stderr]   |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `post`
[INFO] [stderr]   --> src/network/tcp_server.rs:92:12
[INFO] [stderr]    |
[INFO] [stderr] 92 |     pub fn post(&mut self, data: &[u8]) {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get`
[INFO] [stderr]    --> src/network/tcp_server.rs:112:12
[INFO] [stderr]     |
[INFO] [stderr] 112 |     pub fn get(&mut self, id: u32) -> Option<&Session> {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `del`
[INFO] [stderr]    --> src/network/tcp_server.rs:116:12
[INFO] [stderr]     |
[INFO] [stderr] 116 |     pub fn del(&mut self, id: u32) {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rworld` (bin "rworld" test) generated 7 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rworld-79d23d89f392ef76)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f315f7f44b7df4cb52d913c497f909000658d34d0f642a1238780042ebd88460", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f315f7f44b7df4cb52d913c497f909000658d34d0f642a1238780042ebd88460", kill_on_drop: false }`
[INFO] [stdout] f315f7f44b7df4cb52d913c497f909000658d34d0f642a1238780042ebd88460