Dec 05 14:23:49.541 INFO testing mike706574/rust-json-file-deserialization-example against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 05 14:23:49.541 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 14:23:49.736 INFO [stdout] 7e3155d0b2160c676aa0591fe8a67b6da8e570e6410ddf693b8782afe04965bc
Dec 05 14:23:49.741 INFO running `"docker" "start" "-a" "7e3155d0b2160c676aa0591fe8a67b6da8e570e6410ddf693b8782afe04965bc"`
Dec 05 14:23:50.182 INFO [stderr] usermod: no changes
Dec 05 14:23:50.251 INFO [stderr]    Compiling foo v0.1.0 (/source)
Dec 05 14:23:50.788 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 14:23:50.788 INFO [stderr]   --> src/main.rs:26:5
Dec 05 14:23:50.788 INFO [stderr]    |
Dec 05 14:23:50.788 INFO [stderr] 26 |     example();
Dec 05 14:23:50.788 INFO [stderr]    |     ^^^^^^^^^^
Dec 05 14:23:50.788 INFO [stderr]    |
Dec 05 14:23:50.788 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 14:23:50.788 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 14:23:50.788 INFO [stderr] 
Dec 05 14:23:52.044 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.83s
Dec 05 14:23:52.045 INFO [stderr] su: No module specific data is present
Dec 05 14:23:52.926 INFO running `"docker" "inspect" "7e3155d0b2160c676aa0591fe8a67b6da8e570e6410ddf693b8782afe04965bc"`
Dec 05 14:23:53.200 INFO running `"docker" "rm" "-f" "7e3155d0b2160c676aa0591fe8a67b6da8e570e6410ddf693b8782afe04965bc"`
Dec 05 14:23:53.532 INFO [stdout] 7e3155d0b2160c676aa0591fe8a67b6da8e570e6410ddf693b8782afe04965bc
Dec 05 14:23:53.540 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 14:23:54.112 INFO [stdout] 02fa8379b9c225586323f5bdd92943510d572c4397fc605d421282a123543f77
Dec 05 14:23:54.114 INFO running `"docker" "start" "-a" "02fa8379b9c225586323f5bdd92943510d572c4397fc605d421282a123543f77"`
Dec 05 14:23:55.808 INFO [stderr] usermod: no changes
Dec 05 14:23:55.900 INFO [stderr]    Compiling foo v0.1.0 (/source)
Dec 05 14:23:56.408 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 14:23:56.408 INFO [stderr]   --> src/main.rs:26:5
Dec 05 14:23:56.408 INFO [stderr]    |
Dec 05 14:23:56.408 INFO [stderr] 26 |     example();
Dec 05 14:23:56.408 INFO [stderr]    |     ^^^^^^^^^^
Dec 05 14:23:56.408 INFO [stderr]    |
Dec 05 14:23:56.408 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 14:23:56.408 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 14:23:56.408 INFO [stderr] 
Dec 05 14:23:56.778 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
Dec 05 14:23:56.788 INFO [stderr] su: No module specific data is present
Dec 05 14:23:57.630 INFO running `"docker" "inspect" "02fa8379b9c225586323f5bdd92943510d572c4397fc605d421282a123543f77"`
Dec 05 14:23:57.810 INFO running `"docker" "rm" "-f" "02fa8379b9c225586323f5bdd92943510d572c4397fc605d421282a123543f77"`
Dec 05 14:23:58.068 INFO [stdout] 02fa8379b9c225586323f5bdd92943510d572c4397fc605d421282a123543f77
Dec 05 14:23:58.074 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 14:23:58.456 INFO [stdout] f898df837b39ef7ba95099d6e7df1922107c3a5290532901664a7152c79ee660
Dec 05 14:23:58.458 INFO running `"docker" "start" "-a" "f898df837b39ef7ba95099d6e7df1922107c3a5290532901664a7152c79ee660"`
Dec 05 14:23:59.887 INFO [stderr] usermod: no changes
Dec 05 14:23:59.975 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
Dec 05 14:23:59.976 INFO [stderr]      Running /target/debug/deps/foo-f0085f4fe86d1060
Dec 05 14:23:59.982 INFO [stdout] 
Dec 05 14:23:59.982 INFO [stdout] running 0 tests
Dec 05 14:23:59.982 INFO [stdout] 
Dec 05 14:23:59.982 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 05 14:23:59.982 INFO [stdout] 
Dec 05 14:23:59.986 INFO [stderr] su: No module specific data is present
Dec 05 14:24:01.130 INFO running `"docker" "inspect" "f898df837b39ef7ba95099d6e7df1922107c3a5290532901664a7152c79ee660"`
Dec 05 14:24:01.558 INFO running `"docker" "rm" "-f" "f898df837b39ef7ba95099d6e7df1922107c3a5290532901664a7152c79ee660"`
Dec 05 14:24:01.896 INFO [stdout] f898df837b39ef7ba95099d6e7df1922107c3a5290532901664a7152c79ee660