Dec 05 18:50:28.734 INFO testing kbacha/json_serde_test against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 05 18:50:28.735 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt build --frozen" "-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 18:50:28.892 INFO [stdout] 0d3dbe9cffb62914c8c05fd33d1ead117527faf0cfe6ce2e420172903b54e7d6
Dec 05 18:50:28.894 INFO running `"docker" "start" "-a" "0d3dbe9cffb62914c8c05fd33d1ead117527faf0cfe6ce2e420172903b54e7d6"`
Dec 05 18:50:29.302 INFO [stderr] usermod: no changes
Dec 05 18:50:29.344 INFO [stderr]    Compiling json_testing v0.1.0 (/source)
Dec 05 18:50:29.693 INFO [stderr] warning: unused import: `Read`
Dec 05 18:50:29.693 INFO [stderr]  --> src/main.rs:7:21
Dec 05 18:50:29.693 INFO [stderr]   |
Dec 05 18:50:29.693 INFO [stderr] 7 | use std::io::{self, Read};
Dec 05 18:50:29.693 INFO [stderr]   |                     ^^^^
Dec 05 18:50:29.693 INFO [stderr]   |
Dec 05 18:50:29.694 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 18:50:29.694 INFO [stderr] 
Dec 05 18:50:30.250 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.93s
Dec 05 18:50:30.255 INFO [stderr] su: No module specific data is present
Dec 05 18:50:30.528 INFO running `"docker" "inspect" "0d3dbe9cffb62914c8c05fd33d1ead117527faf0cfe6ce2e420172903b54e7d6"`
Dec 05 18:50:30.688 INFO running `"docker" "rm" "-f" "0d3dbe9cffb62914c8c05fd33d1ead117527faf0cfe6ce2e420172903b54e7d6"`
Dec 05 18:50:30.942 INFO [stdout] 0d3dbe9cffb62914c8c05fd33d1ead117527faf0cfe6ce2e420172903b54e7d6
Dec 05 18:50:30.948 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen --no-run" "-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 18:50:31.338 INFO [stdout] 78ce5943128b6d61c6177e77664cac032b1e163d4622c9de609b43b321270446
Dec 05 18:50:31.340 INFO running `"docker" "start" "-a" "78ce5943128b6d61c6177e77664cac032b1e163d4622c9de609b43b321270446"`
Dec 05 18:50:32.324 INFO [stderr] usermod: no changes
Dec 05 18:50:32.373 INFO [stderr]    Compiling json_testing v0.1.0 (/source)
Dec 05 18:50:32.766 INFO [stderr] warning: unused import: `Read`
Dec 05 18:50:32.766 INFO [stderr]  --> src/main.rs:7:21
Dec 05 18:50:32.766 INFO [stderr]   |
Dec 05 18:50:32.766 INFO [stderr] 7 | use std::io::{self, Read};
Dec 05 18:50:32.766 INFO [stderr]   |                     ^^^^
Dec 05 18:50:32.766 INFO [stderr]   |
Dec 05 18:50:32.766 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 18:50:32.766 INFO [stderr] 
Dec 05 18:50:33.084 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
Dec 05 18:50:33.087 INFO [stderr] su: No module specific data is present
Dec 05 18:50:33.386 INFO running `"docker" "inspect" "78ce5943128b6d61c6177e77664cac032b1e163d4622c9de609b43b321270446"`
Dec 05 18:50:33.464 INFO running `"docker" "rm" "-f" "78ce5943128b6d61c6177e77664cac032b1e163d4622c9de609b43b321270446"`
Dec 05 18:50:33.535 INFO [stdout] 78ce5943128b6d61c6177e77664cac032b1e163d4622c9de609b43b321270446
Dec 05 18:50:33.537 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen" "-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 18:50:33.694 INFO [stdout] c378d4d22a2314e0b68041dab0056b9ea7118f04f674961570f7182ac48bd9a4
Dec 05 18:50:33.696 INFO running `"docker" "start" "-a" "c378d4d22a2314e0b68041dab0056b9ea7118f04f674961570f7182ac48bd9a4"`
Dec 05 18:50:34.171 INFO [stderr] usermod: no changes
Dec 05 18:50:34.214 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Dec 05 18:50:34.214 INFO [stderr]      Running /target/debug/deps/json_testing-a2c6c45da524ff64
Dec 05 18:50:34.216 INFO [stdout] 
Dec 05 18:50:34.216 INFO [stdout] running 0 tests
Dec 05 18:50:34.216 INFO [stdout] 
Dec 05 18:50:34.216 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 05 18:50:34.216 INFO [stdout] 
Dec 05 18:50:34.218 INFO [stderr] su: No module specific data is present
Dec 05 18:50:34.428 INFO running `"docker" "inspect" "c378d4d22a2314e0b68041dab0056b9ea7118f04f674961570f7182ac48bd9a4"`
Dec 05 18:50:34.526 INFO running `"docker" "rm" "-f" "c378d4d22a2314e0b68041dab0056b9ea7118f04f674961570f7182ac48bd9a4"`
Dec 05 18:50:34.619 INFO [stdout] c378d4d22a2314e0b68041dab0056b9ea7118f04f674961570f7182ac48bd9a4