Dec 14 19:31:12.807 INFO testing slog-mozlog-json-0.1.0 against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 14 19:31:12.807 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 14 19:31:13.007 INFO [stdout] fccfc43253d72e41627fc1280229503d0559c797870d6e884163a4256bc5465e
Dec 14 19:31:13.009 INFO running `"docker" "start" "-a" "fccfc43253d72e41627fc1280229503d0559c797870d6e884163a4256bc5465e"`
Dec 14 19:31:13.516 INFO [stderr] usermod: no changes
Dec 14 19:31:13.628 INFO [stderr]    Compiling slog v2.4.1
Dec 14 19:31:15.589 INFO [stderr]    Compiling slog-mozlog-json v0.1.0 (/source)
Dec 14 19:31:16.799 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.24s
Dec 14 19:31:16.805 INFO [stderr] su: No module specific data is present
Dec 14 19:31:17.759 INFO running `"docker" "inspect" "fccfc43253d72e41627fc1280229503d0559c797870d6e884163a4256bc5465e"`
Dec 14 19:31:18.109 INFO running `"docker" "rm" "-f" "fccfc43253d72e41627fc1280229503d0559c797870d6e884163a4256bc5465e"`
Dec 14 19:31:18.495 INFO [stdout] fccfc43253d72e41627fc1280229503d0559c797870d6e884163a4256bc5465e
Dec 14 19:31:18.497 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 14 19:31:18.937 INFO [stdout] cf4578325c44f70e1501c6e3d7324cc688f0ee09a72dda5de50f8b4bfcc74de8
Dec 14 19:31:18.945 INFO running `"docker" "start" "-a" "cf4578325c44f70e1501c6e3d7324cc688f0ee09a72dda5de50f8b4bfcc74de8"`
Dec 14 19:31:19.729 INFO [stderr] usermod: no changes
Dec 14 19:31:19.785 INFO [stderr]    Compiling slog-mozlog-json v0.1.0 (/source)
Dec 14 19:31:21.420 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.67s
Dec 14 19:31:21.425 INFO [stderr] su: No module specific data is present
Dec 14 19:31:22.061 INFO running `"docker" "inspect" "cf4578325c44f70e1501c6e3d7324cc688f0ee09a72dda5de50f8b4bfcc74de8"`
Dec 14 19:31:22.219 INFO running `"docker" "rm" "-f" "cf4578325c44f70e1501c6e3d7324cc688f0ee09a72dda5de50f8b4bfcc74de8"`
Dec 14 19:31:22.408 INFO [stdout] cf4578325c44f70e1501c6e3d7324cc688f0ee09a72dda5de50f8b4bfcc74de8
Dec 14 19:31:22.413 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 14 19:31:22.703 INFO [stdout] ea40f64c919e3e1c86b319fa756900da9edc8e513bcb074f2939c69ee8c0c78a
Dec 14 19:31:22.705 INFO running `"docker" "start" "-a" "ea40f64c919e3e1c86b319fa756900da9edc8e513bcb074f2939c69ee8c0c78a"`
Dec 14 19:31:23.227 INFO [stderr] usermod: no changes
Dec 14 19:31:23.290 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
Dec 14 19:31:23.309 INFO [stderr]      Running /target/debug/deps/slog_mozlog_json-a84ee5aa36a5b038
Dec 14 19:31:23.309 INFO [stdout] 
Dec 14 19:31:23.309 INFO [stdout] running 0 tests
Dec 14 19:31:23.311 INFO [stdout] 
Dec 14 19:31:23.311 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 14 19:31:23.311 INFO [stdout] 
Dec 14 19:31:23.315 INFO [stderr]    Doc-tests slog-mozlog-json
Dec 14 19:31:24.929 INFO [stdout] 
Dec 14 19:31:24.929 INFO [stdout] running 1 test
Dec 14 19:31:28.102 INFO [stdout] test src/drain.rs - drain (line 4) ... ok
Dec 14 19:31:28.102 INFO [stdout] 
Dec 14 19:31:28.102 INFO [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 14 19:31:28.102 INFO [stdout] 
Dec 14 19:31:28.119 INFO [stderr] su: No module specific data is present
Dec 14 19:31:28.944 INFO running `"docker" "inspect" "ea40f64c919e3e1c86b319fa756900da9edc8e513bcb074f2939c69ee8c0c78a"`
Dec 14 19:31:29.177 INFO running `"docker" "rm" "-f" "ea40f64c919e3e1c86b319fa756900da9edc8e513bcb074f2939c69ee8c0c78a"`
Dec 14 19:31:29.420 INFO [stdout] ea40f64c919e3e1c86b319fa756900da9edc8e513bcb074f2939c69ee8c0c78a