Dec 05 03:11:22.424 INFO checking CHAM0/client-server against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 03:11:22.424 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-3/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1df97983eb2057dc6a8f7eb364e263b51ae23230-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 05 03:11:22.811 INFO [stdout] 4ef4f5e1171f6781eafa5f85160d0f7c86aaf59c1cbe8b46b4747682dec2bbec
Dec 05 03:11:22.811 INFO running `"docker" "start" "-a" "4ef4f5e1171f6781eafa5f85160d0f7c86aaf59c1cbe8b46b4747682dec2bbec"`
Dec 05 03:11:24.315 INFO [stderr] usermod: no changes
Dec 05 03:11:24.504 INFO [stderr]    Compiling serde v1.0.74
Dec 05 03:11:24.504 INFO [stderr]    Compiling ryu v0.2.5
Dec 05 03:11:24.505 INFO [stderr]    Compiling serde_derive v1.0.74
Dec 05 03:11:46.211 INFO [stderr]     Checking serde_json v1.0.26
Dec 05 03:11:48.421 INFO [stderr]     Checking tokio_test v0.1.0 (/source)
Dec 05 03:11:49.384 INFO [stderr] warning: unused import: `Error`
Dec 05 03:11:49.384 INFO [stderr]  --> src/client/main.rs:5:25
Dec 05 03:11:49.384 INFO [stderr]   |
Dec 05 03:11:49.384 INFO [stderr] 5 | use serde_json::{Value, Error};
Dec 05 03:11:49.384 INFO [stderr]   |                         ^^^^^
Dec 05 03:11:49.384 INFO [stderr]   |
Dec 05 03:11:49.384 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 03:11:49.384 INFO [stderr] 
Dec 05 03:11:49.427 INFO [stderr] warning: unused import: `Error`
Dec 05 03:11:49.427 INFO [stderr]  --> src/client/main.rs:5:25
Dec 05 03:11:49.427 INFO [stderr]   |
Dec 05 03:11:49.427 INFO [stderr] 5 | use serde_json::{Value, Error};
Dec 05 03:11:49.427 INFO [stderr]   |                         ^^^^^
Dec 05 03:11:49.431 INFO [stderr]   |
Dec 05 03:11:49.431 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 03:11:49.431 INFO [stderr] 
Dec 05 03:11:51.183 INFO [stderr] warning: unused variable: `j2`
Dec 05 03:11:51.183 INFO [stderr]   --> src/server/main.rs:37:17
Dec 05 03:11:51.183 INFO [stderr]    |
Dec 05 03:11:51.183 INFO [stderr] 37 |             let j2 = serde_json::to_string(&tata);
Dec 05 03:11:51.183 INFO [stderr]    |                 ^^ help: consider using `_j2` instead
Dec 05 03:11:51.183 INFO [stderr]    |
Dec 05 03:11:51.183 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 03:11:51.183 INFO [stderr] 
Dec 05 03:11:51.235 INFO [stderr] warning: unused variable: `j2`
Dec 05 03:11:51.235 INFO [stderr]   --> src/server/main.rs:37:17
Dec 05 03:11:51.235 INFO [stderr]    |
Dec 05 03:11:51.235 INFO [stderr] 37 |             let j2 = serde_json::to_string(&tata);
Dec 05 03:11:51.235 INFO [stderr]    |                 ^^ help: consider using `_j2` instead
Dec 05 03:11:51.235 INFO [stderr]    |
Dec 05 03:11:51.235 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 03:11:51.235 INFO [stderr] 
Dec 05 03:11:51.352 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.02s
Dec 05 03:11:51.363 INFO [stderr] su: No module specific data is present
Dec 05 03:11:52.245 INFO running `"docker" "inspect" "4ef4f5e1171f6781eafa5f85160d0f7c86aaf59c1cbe8b46b4747682dec2bbec"`
Dec 05 03:11:52.501 INFO running `"docker" "rm" "-f" "4ef4f5e1171f6781eafa5f85160d0f7c86aaf59c1cbe8b46b4747682dec2bbec"`
Dec 05 03:11:52.819 INFO [stdout] 4ef4f5e1171f6781eafa5f85160d0f7c86aaf59c1cbe8b46b4747682dec2bbec