Dec 04 17:49:14.276 INFO checking harindaka/rust-guessing-game against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 17:49:14.276 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-0/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 17:49:14.763 INFO [stdout] 886d2130958c2f2a5c8d98486668b408d61a893725d9a65f0a5519c628bd5b02
Dec 04 17:49:14.764 INFO running `"docker" "start" "-a" "886d2130958c2f2a5c8d98486668b408d61a893725d9a65f0a5519c628bd5b02"`
Dec 04 17:49:17.015 INFO [stderr] usermod: no changes
Dec 04 17:49:17.155 INFO [stderr]     Checking serde_json v1.0.5
Dec 04 17:49:19.363 INFO [stderr]     Checking rust_examples v0.1.0 (/source)
Dec 04 17:49:20.552 INFO [stderr] warning: unused `#[macro_use]` import
Dec 04 17:49:20.552 INFO [stderr]  --> src/main.rs:4:1
Dec 04 17:49:20.552 INFO [stderr]   |
Dec 04 17:49:20.552 INFO [stderr] 4 | #[macro_use]
Dec 04 17:49:20.552 INFO [stderr]   | ^^^^^^^^^^^^
Dec 04 17:49:20.552 INFO [stderr]   |
Dec 04 17:49:20.552 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 17:49:20.552 INFO [stderr] 
Dec 04 17:49:20.552 INFO [stderr] warning: unused import: `config`
Dec 04 17:49:20.552 INFO [stderr]  --> src/configuration.rs:5:5
Dec 04 17:49:20.552 INFO [stderr]   |
Dec 04 17:49:20.552 INFO [stderr] 5 | use config;
Dec 04 17:49:20.552 INFO [stderr]   |     ^^^^^^
Dec 04 17:49:20.552 INFO [stderr] 
Dec 04 17:49:20.699 INFO [stderr] warning: unused `#[macro_use]` import
Dec 04 17:49:20.699 INFO [stderr]  --> src/main.rs:4:1
Dec 04 17:49:20.699 INFO [stderr]   |
Dec 04 17:49:20.699 INFO [stderr] 4 | #[macro_use]
Dec 04 17:49:20.699 INFO [stderr]   | ^^^^^^^^^^^^
Dec 04 17:49:20.699 INFO [stderr]   |
Dec 04 17:49:20.699 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 17:49:20.699 INFO [stderr] 
Dec 04 17:49:20.711 INFO [stderr] warning: unused import: `config`
Dec 04 17:49:20.711 INFO [stderr]  --> src/configuration.rs:5:5
Dec 04 17:49:20.711 INFO [stderr]   |
Dec 04 17:49:20.711 INFO [stderr] 5 | use config;
Dec 04 17:49:20.711 INFO [stderr]   |     ^^^^^^
Dec 04 17:49:20.711 INFO [stderr] 
Dec 04 17:49:20.903 INFO [stderr] warning: unused variable: `config_build`
Dec 04 17:49:20.903 INFO [stderr]   --> src/configuration.rs:11:13
Dec 04 17:49:20.903 INFO [stderr]    |
Dec 04 17:49:20.903 INFO [stderr] 11 |     let mut config_build: Value =from_str(include_str!("config/build.json")).unwrap();
Dec 04 17:49:20.903 INFO [stderr]    |             ^^^^^^^^^^^^ help: consider using `_config_build` instead
Dec 04 17:49:20.903 INFO [stderr]    |
Dec 04 17:49:20.903 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 17:49:20.903 INFO [stderr] 
Dec 04 17:49:20.903 INFO [stderr] warning: unused variable: `config_prod`
Dec 04 17:49:20.903 INFO [stderr]   --> src/configuration.rs:15:13
Dec 04 17:49:20.903 INFO [stderr]    |
Dec 04 17:49:20.903 INFO [stderr] 15 |     let mut config_prod: Value = from_str(include_str!("config/config_prod.json")).unwrap();
Dec 04 17:49:20.903 INFO [stderr]    |             ^^^^^^^^^^^ help: consider using `_config_prod` instead
Dec 04 17:49:20.903 INFO [stderr] 
Dec 04 17:49:20.915 INFO [stderr] warning: variable does not need to be mutable
Dec 04 17:49:20.915 INFO [stderr]   --> src/configuration.rs:11:9
Dec 04 17:49:20.915 INFO [stderr]    |
Dec 04 17:49:20.915 INFO [stderr] 11 |     let mut config_build: Value =from_str(include_str!("config/build.json")).unwrap();
Dec 04 17:49:20.915 INFO [stderr]    |         ----^^^^^^^^^^^^
Dec 04 17:49:20.915 INFO [stderr]    |         |
Dec 04 17:49:20.915 INFO [stderr]    |         help: remove this `mut`
Dec 04 17:49:20.915 INFO [stderr]    |
Dec 04 17:49:20.915 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 17:49:20.915 INFO [stderr] 
Dec 04 17:49:20.915 INFO [stderr] warning: variable does not need to be mutable
Dec 04 17:49:20.915 INFO [stderr]   --> src/configuration.rs:14:9
Dec 04 17:49:20.915 INFO [stderr]    |
Dec 04 17:49:20.915 INFO [stderr] 14 |     let mut config_qa: Value = from_str(include_str!("config/config_qa.json")).unwrap();
Dec 04 17:49:20.915 INFO [stderr]    |         ----^^^^^^^^^
Dec 04 17:49:20.915 INFO [stderr]    |         |
Dec 04 17:49:20.915 INFO [stderr]    |         help: remove this `mut`
Dec 04 17:49:20.915 INFO [stderr] 
Dec 04 17:49:20.915 INFO [stderr] warning: variable does not need to be mutable
Dec 04 17:49:20.915 INFO [stderr]   --> src/configuration.rs:15:9
Dec 04 17:49:20.915 INFO [stderr]    |
Dec 04 17:49:20.915 INFO [stderr] 15 |     let mut config_prod: Value = from_str(include_str!("config/config_prod.json")).unwrap();
Dec 04 17:49:20.915 INFO [stderr]    |         ----^^^^^^^^^^^
Dec 04 17:49:20.915 INFO [stderr]    |         |
Dec 04 17:49:20.915 INFO [stderr]    |         help: remove this `mut`
Dec 04 17:49:20.915 INFO [stderr] 
Dec 04 17:49:21.254 INFO [stderr] warning: unused variable: `config_build`
Dec 04 17:49:21.254 INFO [stderr]   --> src/configuration.rs:11:13
Dec 04 17:49:21.254 INFO [stderr]    |
Dec 04 17:49:21.254 INFO [stderr] 11 |     let mut config_build: Value =from_str(include_str!("config/build.json")).unwrap();
Dec 04 17:49:21.254 INFO [stderr]    |             ^^^^^^^^^^^^ help: consider using `_config_build` instead
Dec 04 17:49:21.254 INFO [stderr]    |
Dec 04 17:49:21.254 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 17:49:21.254 INFO [stderr] 
Dec 04 17:49:21.254 INFO [stderr] warning: unused variable: `config_prod`
Dec 04 17:49:21.254 INFO [stderr]   --> src/configuration.rs:15:13
Dec 04 17:49:21.254 INFO [stderr]    |
Dec 04 17:49:21.254 INFO [stderr] 15 |     let mut config_prod: Value = from_str(include_str!("config/config_prod.json")).unwrap();
Dec 04 17:49:21.254 INFO [stderr]    |             ^^^^^^^^^^^ help: consider using `_config_prod` instead
Dec 04 17:49:21.255 INFO [stderr] 
Dec 04 17:49:21.274 INFO [stderr] warning: variable does not need to be mutable
Dec 04 17:49:21.274 INFO [stderr]   --> src/configuration.rs:11:9
Dec 04 17:49:21.274 INFO [stderr]    |
Dec 04 17:49:21.274 INFO [stderr] 11 |     let mut config_build: Value =from_str(include_str!("config/build.json")).unwrap();
Dec 04 17:49:21.274 INFO [stderr]    |         ----^^^^^^^^^^^^
Dec 04 17:49:21.274 INFO [stderr]    |         |
Dec 04 17:49:21.274 INFO [stderr]    |         help: remove this `mut`
Dec 04 17:49:21.274 INFO [stderr]    |
Dec 04 17:49:21.274 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 17:49:21.274 INFO [stderr] 
Dec 04 17:49:21.274 INFO [stderr] warning: variable does not need to be mutable
Dec 04 17:49:21.274 INFO [stderr]   --> src/configuration.rs:14:9
Dec 04 17:49:21.274 INFO [stderr]    |
Dec 04 17:49:21.274 INFO [stderr] 14 |     let mut config_qa: Value = from_str(include_str!("config/config_qa.json")).unwrap();
Dec 04 17:49:21.274 INFO [stderr]    |         ----^^^^^^^^^
Dec 04 17:49:21.274 INFO [stderr]    |         |
Dec 04 17:49:21.274 INFO [stderr]    |         help: remove this `mut`
Dec 04 17:49:21.274 INFO [stderr] 
Dec 04 17:49:21.274 INFO [stderr] warning: variable does not need to be mutable
Dec 04 17:49:21.274 INFO [stderr]   --> src/configuration.rs:15:9
Dec 04 17:49:21.274 INFO [stderr]    |
Dec 04 17:49:21.274 INFO [stderr] 15 |     let mut config_prod: Value = from_str(include_str!("config/config_prod.json")).unwrap();
Dec 04 17:49:21.274 INFO [stderr]    |         ----^^^^^^^^^^^
Dec 04 17:49:21.274 INFO [stderr]    |         |
Dec 04 17:49:21.274 INFO [stderr]    |         help: remove this `mut`
Dec 04 17:49:21.274 INFO [stderr] 
Dec 04 17:49:21.423 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.36s
Dec 04 17:49:21.431 INFO [stderr] su: No module specific data is present
Dec 04 17:49:22.740 INFO running `"docker" "inspect" "886d2130958c2f2a5c8d98486668b408d61a893725d9a65f0a5519c628bd5b02"`
Dec 04 17:49:23.021 INFO running `"docker" "rm" "-f" "886d2130958c2f2a5c8d98486668b408d61a893725d9a65f0a5519c628bd5b02"`
Dec 04 17:49:23.315 INFO [stdout] 886d2130958c2f2a5c8d98486668b408d61a893725d9a65f0a5519c628bd5b02