Dec 04 22:42:23.809 INFO checking amedviediev/data-generator against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 22:42:23.809 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-7/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 04 22:42:24.151 INFO [stdout] cace3c71cbd78800afbedbc3605ef4b2ff83865fda713b229d5ca7afef74c93e
Dec 04 22:42:24.153 INFO running `"docker" "start" "-a" "cace3c71cbd78800afbedbc3605ef4b2ff83865fda713b229d5ca7afef74c93e"`
Dec 04 22:42:24.785 INFO [stderr] usermod: no changes
Dec 04 22:42:24.931 INFO [stderr]     Checking serde v1.0.47
Dec 04 22:42:24.931 INFO [stderr]     Checking Inflector v0.11.3
Dec 04 22:42:24.935 INFO [stderr]     Checking names v0.10.0
Dec 04 22:42:24.935 INFO [stderr]    Compiling serde_derive v1.0.50
Dec 04 22:42:24.935 INFO [stderr]     Checking indicatif v0.9.0
Dec 04 22:42:37.031 INFO [stderr]     Checking chrono v0.4.2
Dec 04 22:42:37.031 INFO [stderr]     Checking serde_json v1.0.17
Dec 04 22:42:39.415 INFO [stderr]     Checking data-generator v0.1.0 (/source)
Dec 04 22:42:41.807 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 22:42:41.807 INFO [stderr]   --> src/generator.rs:35:5
Dec 04 22:42:41.807 INFO [stderr]    |
Dec 04 22:42:41.807 INFO [stderr] 35 |     write!(file, "[");
Dec 04 22:42:41.807 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 04 22:42:41.807 INFO [stderr]    |
Dec 04 22:42:41.807 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 22:42:41.807 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 22:42:41.807 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 04 22:42:41.807 INFO [stderr] 
Dec 04 22:42:41.807 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 22:42:41.807 INFO [stderr]   --> src/generator.rs:59:13
Dec 04 22:42:41.807 INFO [stderr]    |
Dec 04 22:42:41.807 INFO [stderr] 59 |             file.write(string.as_bytes());
Dec 04 22:42:41.807 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 22:42:41.807 INFO [stderr]    |
Dec 04 22:42:41.807 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 22:42:41.807 INFO [stderr] 
Dec 04 22:42:41.807 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 22:42:41.807 INFO [stderr]   --> src/generator.rs:62:13
Dec 04 22:42:41.807 INFO [stderr]    |
Dec 04 22:42:41.807 INFO [stderr] 62 |             file.write(string.as_bytes());
Dec 04 22:42:41.807 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 22:42:41.807 INFO [stderr]    |
Dec 04 22:42:41.807 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 22:42:41.807 INFO [stderr] 
Dec 04 22:42:41.807 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 22:42:41.807 INFO [stderr]   --> src/generator.rs:66:13
Dec 04 22:42:41.807 INFO [stderr]    |
Dec 04 22:42:41.807 INFO [stderr] 66 |             write!(file, ",");
Dec 04 22:42:41.807 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^
Dec 04 22:42:41.807 INFO [stderr]    |
Dec 04 22:42:41.807 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 22:42:41.807 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 04 22:42:41.807 INFO [stderr] 
Dec 04 22:42:41.807 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 22:42:41.807 INFO [stderr]   --> src/generator.rs:72:5
Dec 04 22:42:41.807 INFO [stderr]    |
Dec 04 22:42:41.807 INFO [stderr] 72 |     write!(file, "]");
Dec 04 22:42:41.807 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 04 22:42:41.807 INFO [stderr]    |
Dec 04 22:42:41.807 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 22:42:41.807 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 04 22:42:41.807 INFO [stderr] 
Dec 04 22:42:41.831 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 22:42:41.831 INFO [stderr]   --> src/generator.rs:35:5
Dec 04 22:42:41.831 INFO [stderr]    |
Dec 04 22:42:41.831 INFO [stderr] 35 |     write!(file, "[");
Dec 04 22:42:41.831 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 04 22:42:41.831 INFO [stderr]    |
Dec 04 22:42:41.831 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 22:42:41.831 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 22:42:41.831 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 04 22:42:41.831 INFO [stderr] 
Dec 04 22:42:41.831 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 22:42:41.831 INFO [stderr]   --> src/generator.rs:59:13
Dec 04 22:42:41.831 INFO [stderr]    |
Dec 04 22:42:41.831 INFO [stderr] 59 |             file.write(string.as_bytes());
Dec 04 22:42:41.831 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 22:42:41.831 INFO [stderr]    |
Dec 04 22:42:41.831 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 22:42:41.831 INFO [stderr] 
Dec 04 22:42:41.831 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 22:42:41.831 INFO [stderr]   --> src/generator.rs:62:13
Dec 04 22:42:41.831 INFO [stderr]    |
Dec 04 22:42:41.831 INFO [stderr] 62 |             file.write(string.as_bytes());
Dec 04 22:42:41.831 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 22:42:41.831 INFO [stderr]    |
Dec 04 22:42:41.831 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 22:42:41.831 INFO [stderr] 
Dec 04 22:42:41.843 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 22:42:41.843 INFO [stderr]   --> src/generator.rs:66:13
Dec 04 22:42:41.843 INFO [stderr]    |
Dec 04 22:42:41.843 INFO [stderr] 66 |             write!(file, ",");
Dec 04 22:42:41.843 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^
Dec 04 22:42:41.843 INFO [stderr]    |
Dec 04 22:42:41.843 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 22:42:41.843 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 04 22:42:41.843 INFO [stderr] 
Dec 04 22:42:41.843 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 22:42:41.843 INFO [stderr]   --> src/generator.rs:72:5
Dec 04 22:42:41.843 INFO [stderr]    |
Dec 04 22:42:41.843 INFO [stderr] 72 |     write!(file, "]");
Dec 04 22:42:41.843 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 04 22:42:41.843 INFO [stderr]    |
Dec 04 22:42:41.843 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 22:42:41.843 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 04 22:42:41.843 INFO [stderr] 
Dec 04 22:42:46.027 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.23s
Dec 04 22:42:46.039 INFO [stderr] su: No module specific data is present
Dec 04 22:42:46.384 INFO running `"docker" "inspect" "cace3c71cbd78800afbedbc3605ef4b2ff83865fda713b229d5ca7afef74c93e"`
Dec 04 22:42:46.576 INFO running `"docker" "rm" "-f" "cace3c71cbd78800afbedbc3605ef4b2ff83865fda713b229d5ca7afef74c93e"`
Dec 04 22:42:46.755 INFO [stdout] cace3c71cbd78800afbedbc3605ef4b2ff83865fda713b229d5ca7afef74c93e