Dec 05 18:50:28.905 INFO testing kbacha/json_serde_test against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 05 18:50:28.905 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-1/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 18:50:29.059 INFO [stdout] 2c8739ce85449cbdd203ea4e8a56375c7f0cff8b88b6c18eded21a8608a2e037
Dec 05 18:50:29.062 INFO running `"docker" "start" "-a" "2c8739ce85449cbdd203ea4e8a56375c7f0cff8b88b6c18eded21a8608a2e037"`
Dec 05 18:50:29.418 INFO [stderr] usermod: no changes
Dec 05 18:50:29.479 INFO [stderr]    Compiling json_testing v0.1.0 (/source)
Dec 05 18:50:29.928 INFO [stderr] warning: unused import: `Read`
Dec 05 18:50:29.928 INFO [stderr]  --> src/main.rs:7:21
Dec 05 18:50:29.928 INFO [stderr]   |
Dec 05 18:50:29.928 INFO [stderr] 7 | use std::io::{self, Read};
Dec 05 18:50:29.928 INFO [stderr]   |                     ^^^^
Dec 05 18:50:29.928 INFO [stderr]   |
Dec 05 18:50:29.928 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 18:50:29.928 INFO [stderr] 
Dec 05 18:50:30.584 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
Dec 05 18:50:30.588 INFO [stderr] su: No module specific data is present
Dec 05 18:50:31.194 INFO running `"docker" "inspect" "2c8739ce85449cbdd203ea4e8a56375c7f0cff8b88b6c18eded21a8608a2e037"`
Dec 05 18:50:31.417 INFO running `"docker" "rm" "-f" "2c8739ce85449cbdd203ea4e8a56375c7f0cff8b88b6c18eded21a8608a2e037"`
Dec 05 18:50:31.711 INFO [stdout] 2c8739ce85449cbdd203ea4e8a56375c7f0cff8b88b6c18eded21a8608a2e037
Dec 05 18:50:31.718 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-1/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 18:50:32.172 INFO [stdout] 06b49907cfddc1ba19153d686beda6c4a77773cd881878218191f8b8f8750d2a
Dec 05 18:50:32.179 INFO running `"docker" "start" "-a" "06b49907cfddc1ba19153d686beda6c4a77773cd881878218191f8b8f8750d2a"`
Dec 05 18:50:32.799 INFO [stderr] usermod: no changes
Dec 05 18:50:32.836 INFO [stderr]    Compiling json_testing v0.1.0 (/source)
Dec 05 18:50:33.193 INFO [stderr] warning: unused import: `Read`
Dec 05 18:50:33.193 INFO [stderr]  --> src/main.rs:7:21
Dec 05 18:50:33.193 INFO [stderr]   |
Dec 05 18:50:33.193 INFO [stderr] 7 | use std::io::{self, Read};
Dec 05 18:50:33.193 INFO [stderr]   |                     ^^^^
Dec 05 18:50:33.193 INFO [stderr]   |
Dec 05 18:50:33.193 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 18:50:33.193 INFO [stderr] 
Dec 05 18:50:33.491 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
Dec 05 18:50:33.496 INFO [stderr] su: No module specific data is present
Dec 05 18:50:33.766 INFO running `"docker" "inspect" "06b49907cfddc1ba19153d686beda6c4a77773cd881878218191f8b8f8750d2a"`
Dec 05 18:50:33.850 INFO running `"docker" "rm" "-f" "06b49907cfddc1ba19153d686beda6c4a77773cd881878218191f8b8f8750d2a"`
Dec 05 18:50:33.914 INFO [stdout] 06b49907cfddc1ba19153d686beda6c4a77773cd881878218191f8b8f8750d2a
Dec 05 18:50:33.915 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-1/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 18:50:34.083 INFO [stdout] 94c60bb45f5038b400941c561857547c53cc2df794bc90fdd1e6f22350d6344d
Dec 05 18:50:34.084 INFO running `"docker" "start" "-a" "94c60bb45f5038b400941c561857547c53cc2df794bc90fdd1e6f22350d6344d"`
Dec 05 18:50:34.403 INFO [stderr] usermod: no changes
Dec 05 18:50:34.448 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
Dec 05 18:50:34.450 INFO [stderr]      Running /target/debug/deps/json_testing-3018eefaef6fd91d
Dec 05 18:50:34.455 INFO [stdout] 
Dec 05 18:50:34.455 INFO [stdout] running 0 tests
Dec 05 18:50:34.455 INFO [stdout] 
Dec 05 18:50:34.455 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 05 18:50:34.455 INFO [stdout] 
Dec 05 18:50:34.458 INFO [stderr] su: No module specific data is present
Dec 05 18:50:34.690 INFO running `"docker" "inspect" "94c60bb45f5038b400941c561857547c53cc2df794bc90fdd1e6f22350d6344d"`
Dec 05 18:50:34.762 INFO running `"docker" "rm" "-f" "94c60bb45f5038b400941c561857547c53cc2df794bc90fdd1e6f22350d6344d"`
Dec 05 18:50:34.823 INFO [stdout] 94c60bb45f5038b400941c561857547c53cc2df794bc90fdd1e6f22350d6344d