[INFO] fetching crate tcpproxy-rs 0.7.5...
[INFO] testing tcpproxy-rs-0.7.5 against 1.91.0 for beta-1.92-2
[INFO] extracting crate tcpproxy-rs 0.7.5 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate tcpproxy-rs 0.7.5
[INFO] finished tweaking crates.io crate tcpproxy-rs 0.7.5
[INFO] tweaked toml for crates.io crate tcpproxy-rs 0.7.5 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tcpproxy-rs 0.7.5 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tcpproxy-rs 0.7.5 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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio v1.37.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2cdf941a62da5a87b4a2a81f9db87829d5ec6864b99afc2133d611c738773f7d
[INFO] running `Command { std: "docker" "start" "-a" "2cdf941a62da5a87b4a2a81f9db87829d5ec6864b99afc2133d611c738773f7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2cdf941a62da5a87b4a2a81f9db87829d5ec6864b99afc2133d611c738773f7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cdf941a62da5a87b4a2a81f9db87829d5ec6864b99afc2133d611c738773f7d", kill_on_drop: false }`
[INFO] [stdout] 2cdf941a62da5a87b4a2a81f9db87829d5ec6864b99afc2133d611c738773f7d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83ac1f5e2b0736adba8685e0eab6b835d10d4123f805b55945b811e141fcfa6c
[INFO] running `Command { std: "docker" "start" "-a" "83ac1f5e2b0736adba8685e0eab6b835d10d4123f805b55945b811e141fcfa6c", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.30
[INFO] [stderr]    Compiling futures-sink v0.3.30
[INFO] [stderr]    Compiling futures-task v0.3.30
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling futures-io v0.3.30
[INFO] [stderr]    Compiling unicode-width v0.1.11
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]    Compiling socket2 v0.5.6
[INFO] [stderr]    Compiling mio v0.8.11
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling futures-channel v0.3.30
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling tokio v1.37.0
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling futures-executor v0.3.30
[INFO] [stderr]    Compiling futures v0.3.30
[INFO] [stderr]    Compiling tcpproxy-rs v0.7.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `opcode`
[INFO] [stdout]    --> src/main.rs:155:20
[INFO] [stdout]     |
[INFO] [stdout] 155 |                 Ok(opcode) => {} //println!("Invalid opcode {} from {}", opcode, client_addr);
[INFO] [stdout]     |                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_opcode`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:156:21
[INFO] [stdout]     |
[INFO] [stdout] 156 |                 Err(e) => {} //eprintln!("failed to read from socket; err = {:?}", e);
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:175:13
[INFO] [stdout]     |
[INFO] [stdout] 175 |         Err(e) => {}//eprintln!("failed to write RS2 response to socket; err = {:?}", e)
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:208:13
[INFO] [stdout]     |
[INFO] [stdout] 208 |         Err(e) => {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:218:13
[INFO] [stdout]     |
[INFO] [stdout] 218 |         Err(e) => {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]    --> src/main.rs:254:12
[INFO] [stdout]     |
[INFO] [stdout] 254 |         Ok(count) => {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 254 |         Ok(_count) => {
[INFO] [stdout]     |            +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `BUF_SIZE`
[INFO] [stdout]     |
[INFO] [stdout] 254 -         Ok(count) => {
[INFO] [stdout] 254 +         Ok(BUF_SIZE) => {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:192:21
[INFO] [stdout]     |
[INFO] [stdout] 192 |                 Err(e) => {}//eprintln!("failed to write JS5 response to socket; err = {:?}", e)
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:195:13
[INFO] [stdout]     |
[INFO] [stdout] 195 |         Err(e) => {}//eprintln!("failed to read from JS5 socket; err = {:?}", e)
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.35s
[INFO] running `Command { std: "docker" "inspect" "83ac1f5e2b0736adba8685e0eab6b835d10d4123f805b55945b811e141fcfa6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83ac1f5e2b0736adba8685e0eab6b835d10d4123f805b55945b811e141fcfa6c", kill_on_drop: false }`
[INFO] [stdout] 83ac1f5e2b0736adba8685e0eab6b835d10d4123f805b55945b811e141fcfa6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 98a4cd4bd437f27b5a852c9e68718786a76837cc3d97318e88a1d13b08edf220
[INFO] running `Command { std: "docker" "start" "-a" "98a4cd4bd437f27b5a852c9e68718786a76837cc3d97318e88a1d13b08edf220", kill_on_drop: false }`
[INFO] [stderr]    Compiling tcpproxy-rs v0.7.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `opcode`
[INFO] [stdout]    --> src/main.rs:155:20
[INFO] [stdout]     |
[INFO] [stdout] 155 |                 Ok(opcode) => {} //println!("Invalid opcode {} from {}", opcode, client_addr);
[INFO] [stdout]     |                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_opcode`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:156:21
[INFO] [stdout]     |
[INFO] [stdout] 156 |                 Err(e) => {} //eprintln!("failed to read from socket; err = {:?}", e);
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:175:13
[INFO] [stdout]     |
[INFO] [stdout] 175 |         Err(e) => {}//eprintln!("failed to write RS2 response to socket; err = {:?}", e)
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:208:13
[INFO] [stdout]     |
[INFO] [stdout] 208 |         Err(e) => {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:218:13
[INFO] [stdout]     |
[INFO] [stdout] 218 |         Err(e) => {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]    --> src/main.rs:254:12
[INFO] [stdout]     |
[INFO] [stdout] 254 |         Ok(count) => {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 254 |         Ok(_count) => {
[INFO] [stdout]     |            +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `BUF_SIZE`
[INFO] [stdout]     |
[INFO] [stdout] 254 -         Ok(count) => {
[INFO] [stdout] 254 +         Ok(BUF_SIZE) => {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:192:21
[INFO] [stdout]     |
[INFO] [stdout] 192 |                 Err(e) => {}//eprintln!("failed to write JS5 response to socket; err = {:?}", e)
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:195:13
[INFO] [stdout]     |
[INFO] [stdout] 195 |         Err(e) => {}//eprintln!("failed to read from JS5 socket; err = {:?}", e)
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "98a4cd4bd437f27b5a852c9e68718786a76837cc3d97318e88a1d13b08edf220", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98a4cd4bd437f27b5a852c9e68718786a76837cc3d97318e88a1d13b08edf220", kill_on_drop: false }`
[INFO] [stdout] 98a4cd4bd437f27b5a852c9e68718786a76837cc3d97318e88a1d13b08edf220
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 633bc8f99d232710e2a1244675f8a7d0b610e5af882f73e83ada74a3c0324922
[INFO] running `Command { std: "docker" "start" "-a" "633bc8f99d232710e2a1244675f8a7d0b610e5af882f73e83ada74a3c0324922", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `opcode`
[INFO] [stderr]    --> src/main.rs:155:20
[INFO] [stderr]     |
[INFO] [stderr] 155 |                 Ok(opcode) => {} //println!("Invalid opcode {} from {}", opcode, client_addr);
[INFO] [stderr]     |                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_opcode`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/main.rs:156:21
[INFO] [stderr]     |
[INFO] [stderr] 156 |                 Err(e) => {} //eprintln!("failed to read from socket; err = {:?}", e);
[INFO] [stderr]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/main.rs:175:13
[INFO] [stderr]     |
[INFO] [stderr] 175 |         Err(e) => {}//eprintln!("failed to write RS2 response to socket; err = {:?}", e)
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/main.rs:208:13
[INFO] [stderr]     |
[INFO] [stderr] 208 |         Err(e) => {
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/main.rs:218:13
[INFO] [stderr]     |
[INFO] [stderr] 218 |         Err(e) => {
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `count`
[INFO] [stderr]    --> src/main.rs:254:12
[INFO] [stderr]     |
[INFO] [stderr] 254 |         Ok(count) => {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr]     |
[INFO] [stderr] help: if this is intentional, prefix it with an underscore
[INFO] [stderr]     |
[INFO] [stderr] 254 |         Ok(_count) => {
[INFO] [stderr]     |            +
[INFO] [stderr] help: you might have meant to pattern match on the similarly named constant `BUF_SIZE`
[INFO] [stderr]     |
[INFO] [stderr] 254 -         Ok(count) => {
[INFO] [stderr] 254 +         Ok(BUF_SIZE) => {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/main.rs:192:21
[INFO] [stderr]     |
[INFO] [stderr] 192 |                 Err(e) => {}//eprintln!("failed to write JS5 response to socket; err = {:?}", e)
[INFO] [stderr]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/main.rs:195:13
[INFO] [stderr]     |
[INFO] [stderr] 195 |         Err(e) => {}//eprintln!("failed to read from JS5 socket; err = {:?}", e)
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: `tcpproxy-rs` (bin "tcpproxy-rs" test) generated 8 warnings (run `cargo fix --bin "tcpproxy-rs" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/tcpproxy_rs-02fcbe8a733e182d)
[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" "633bc8f99d232710e2a1244675f8a7d0b610e5af882f73e83ada74a3c0324922", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "633bc8f99d232710e2a1244675f8a7d0b610e5af882f73e83ada74a3c0324922", kill_on_drop: false }`
[INFO] [stdout] 633bc8f99d232710e2a1244675f8a7d0b610e5af882f73e83ada74a3c0324922