Oct 12 20:50:20.501 INFO checking harindaka/rust-guessing-game against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 20:50:20.502 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-4/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-4/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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"`
Oct 12 20:50:21.044 INFO blam! efa80d36ca29fe5387e6509f7e0764903a115187b6b29c72028d8348e2bec58b
Oct 12 20:50:21.049 INFO running `"docker" "start" "-a" "efa80d36ca29fe5387e6509f7e0764903a115187b6b29c72028d8348e2bec58b"`
Oct 12 20:50:22.384 INFO kablam! usermod: no changes
Oct 12 20:50:22.524 INFO kablam!     Checking serde v1.0.17
Oct 12 20:50:22.524 INFO kablam!    Compiling serde_derive v1.0.17
Oct 12 20:50:38.561 INFO kablam!     Checking serde_json v1.0.5
Oct 12 20:50:40.983 INFO kablam!     Checking rust_examples v0.1.0 (/source)
Oct 12 20:50:41.814 INFO kablam! warning: unused `#[macro_use]` import
Oct 12 20:50:41.814 INFO kablam!  --> src/main.rs:4:1
Oct 12 20:50:41.814 INFO kablam!   |
Oct 12 20:50:41.814 INFO kablam! 4 | #[macro_use]
Oct 12 20:50:41.814 INFO kablam!   | ^^^^^^^^^^^^
Oct 12 20:50:41.814 INFO kablam!   |
Oct 12 20:50:41.814 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 12 20:50:41.814 INFO kablam! 
Oct 12 20:50:41.814 INFO kablam! warning: unused import: `config`
Oct 12 20:50:41.814 INFO kablam!  --> src/configuration.rs:5:5
Oct 12 20:50:41.814 INFO kablam!   |
Oct 12 20:50:41.814 INFO kablam! 5 | use config;
Oct 12 20:50:41.814 INFO kablam!   |     ^^^^^^
Oct 12 20:50:41.814 INFO kablam! 
Oct 12 20:50:41.832 INFO kablam! warning: unused `#[macro_use]` import
Oct 12 20:50:41.832 INFO kablam!  --> src/main.rs:4:1
Oct 12 20:50:41.832 INFO kablam!   |
Oct 12 20:50:41.832 INFO kablam! 4 | #[macro_use]
Oct 12 20:50:41.832 INFO kablam!   | ^^^^^^^^^^^^
Oct 12 20:50:41.832 INFO kablam!   |
Oct 12 20:50:41.832 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 12 20:50:41.832 INFO kablam! 
Oct 12 20:50:41.832 INFO kablam! warning: unused import: `config`
Oct 12 20:50:41.832 INFO kablam!  --> src/configuration.rs:5:5
Oct 12 20:50:41.832 INFO kablam!   |
Oct 12 20:50:41.832 INFO kablam! 5 | use config;
Oct 12 20:50:41.832 INFO kablam!   |     ^^^^^^
Oct 12 20:50:41.832 INFO kablam! 
Oct 12 20:50:42.232 INFO kablam! warning: unused variable: `config_build`
Oct 12 20:50:42.232 INFO kablam!   --> src/configuration.rs:11:13
Oct 12 20:50:42.232 INFO kablam!    |
Oct 12 20:50:42.232 INFO kablam! 11 |     let mut config_build: Value =from_str(include_str!("config/build.json")).unwrap();
Oct 12 20:50:42.232 INFO kablam!    |             ^^^^^^^^^^^^ help: consider using `_config_build` instead
Oct 12 20:50:42.232 INFO kablam!    |
Oct 12 20:50:42.232 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 12 20:50:42.232 INFO kablam! 
Oct 12 20:50:42.232 INFO kablam! warning: unused variable: `config_prod`
Oct 12 20:50:42.232 INFO kablam!   --> src/configuration.rs:15:13
Oct 12 20:50:42.232 INFO kablam!    |
Oct 12 20:50:42.232 INFO kablam! 15 |     let mut config_prod: Value = from_str(include_str!("config/config_prod.json")).unwrap();
Oct 12 20:50:42.232 INFO kablam!    |             ^^^^^^^^^^^ help: consider using `_config_prod` instead
Oct 12 20:50:42.232 INFO kablam! 
Oct 12 20:50:42.248 INFO kablam! warning: variable does not need to be mutable
Oct 12 20:50:42.248 INFO kablam!   --> src/configuration.rs:11:9
Oct 12 20:50:42.248 INFO kablam!    |
Oct 12 20:50:42.248 INFO kablam! 11 |     let mut config_build: Value =from_str(include_str!("config/build.json")).unwrap();
Oct 12 20:50:42.248 INFO kablam!    |         ----^^^^^^^^^^^^
Oct 12 20:50:42.248 INFO kablam!    |         |
Oct 12 20:50:42.248 INFO kablam!    |         help: remove this `mut`
Oct 12 20:50:42.248 INFO kablam!    |
Oct 12 20:50:42.248 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 12 20:50:42.248 INFO kablam! 
Oct 12 20:50:42.248 INFO kablam! warning: variable does not need to be mutable
Oct 12 20:50:42.248 INFO kablam!   --> src/configuration.rs:14:9
Oct 12 20:50:42.248 INFO kablam!    |
Oct 12 20:50:42.248 INFO kablam! 14 |     let mut config_qa: Value = from_str(include_str!("config/config_qa.json")).unwrap();
Oct 12 20:50:42.248 INFO kablam!    |         ----^^^^^^^^^
Oct 12 20:50:42.248 INFO kablam!    |         |
Oct 12 20:50:42.248 INFO kablam!    |         help: remove this `mut`
Oct 12 20:50:42.248 INFO kablam! 
Oct 12 20:50:42.249 INFO kablam! warning: variable does not need to be mutable
Oct 12 20:50:42.249 INFO kablam!   --> src/configuration.rs:15:9
Oct 12 20:50:42.249 INFO kablam!    |
Oct 12 20:50:42.249 INFO kablam! 15 |     let mut config_prod: Value = from_str(include_str!("config/config_prod.json")).unwrap();
Oct 12 20:50:42.249 INFO kablam!    |         ----^^^^^^^^^^^
Oct 12 20:50:42.249 INFO kablam!    |         |
Oct 12 20:50:42.249 INFO kablam!    |         help: remove this `mut`
Oct 12 20:50:42.249 INFO kablam! 
Oct 12 20:50:42.292 INFO kablam! warning: unused variable: `config_build`
Oct 12 20:50:42.292 INFO kablam!   --> src/configuration.rs:11:13
Oct 12 20:50:42.292 INFO kablam!    |
Oct 12 20:50:42.292 INFO kablam! 11 |     let mut config_build: Value =from_str(include_str!("config/build.json")).unwrap();
Oct 12 20:50:42.292 INFO kablam!    |             ^^^^^^^^^^^^ help: consider using `_config_build` instead
Oct 12 20:50:42.292 INFO kablam!    |
Oct 12 20:50:42.292 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 12 20:50:42.292 INFO kablam! 
Oct 12 20:50:42.292 INFO kablam! warning: unused variable: `config_prod`
Oct 12 20:50:42.292 INFO kablam!   --> src/configuration.rs:15:13
Oct 12 20:50:42.292 INFO kablam!    |
Oct 12 20:50:42.292 INFO kablam! 15 |     let mut config_prod: Value = from_str(include_str!("config/config_prod.json")).unwrap();
Oct 12 20:50:42.292 INFO kablam!    |             ^^^^^^^^^^^ help: consider using `_config_prod` instead
Oct 12 20:50:42.292 INFO kablam! 
Oct 12 20:50:42.300 INFO kablam! warning: variable does not need to be mutable
Oct 12 20:50:42.300 INFO kablam!   --> src/configuration.rs:11:9
Oct 12 20:50:42.300 INFO kablam!    |
Oct 12 20:50:42.300 INFO kablam! 11 |     let mut config_build: Value =from_str(include_str!("config/build.json")).unwrap();
Oct 12 20:50:42.300 INFO kablam!    |         ----^^^^^^^^^^^^
Oct 12 20:50:42.300 INFO kablam!    |         |
Oct 12 20:50:42.300 INFO kablam!    |         help: remove this `mut`
Oct 12 20:50:42.300 INFO kablam!    |
Oct 12 20:50:42.300 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 12 20:50:42.301 INFO kablam! 
Oct 12 20:50:42.301 INFO kablam! warning: variable does not need to be mutable
Oct 12 20:50:42.301 INFO kablam!   --> src/configuration.rs:14:9
Oct 12 20:50:42.301 INFO kablam!    |
Oct 12 20:50:42.301 INFO kablam! 14 |     let mut config_qa: Value = from_str(include_str!("config/config_qa.json")).unwrap();
Oct 12 20:50:42.301 INFO kablam!    |         ----^^^^^^^^^
Oct 12 20:50:42.301 INFO kablam!    |         |
Oct 12 20:50:42.301 INFO kablam!    |         help: remove this `mut`
Oct 12 20:50:42.301 INFO kablam! 
Oct 12 20:50:42.301 INFO kablam! warning: variable does not need to be mutable
Oct 12 20:50:42.301 INFO kablam!   --> src/configuration.rs:15:9
Oct 12 20:50:42.301 INFO kablam!    |
Oct 12 20:50:42.301 INFO kablam! 15 |     let mut config_prod: Value = from_str(include_str!("config/config_prod.json")).unwrap();
Oct 12 20:50:42.301 INFO kablam!    |         ----^^^^^^^^^^^
Oct 12 20:50:42.301 INFO kablam!    |         |
Oct 12 20:50:42.301 INFO kablam!    |         help: remove this `mut`
Oct 12 20:50:42.301 INFO kablam! 
Oct 12 20:50:42.461 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 20.06s
Oct 12 20:50:42.465 INFO kablam! su: No module specific data is present
Oct 12 20:50:43.695 INFO running `"docker" "rm" "-f" "efa80d36ca29fe5387e6509f7e0764903a115187b6b29c72028d8348e2bec58b"`
Oct 12 20:50:44.028 INFO blam! efa80d36ca29fe5387e6509f7e0764903a115187b6b29c72028d8348e2bec58b