Dec 19 16:12:49.872 INFO checking harindaka/rust-guessing-game against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 16:12:49.872 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/harindaka/rust-guessing-game:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 16:12:50.126 INFO [stdout] b8e63c60fdbc34e49c85cf2d7dc7536693c1545ca53713165855c00e46d5448a
Dec 19 16:12:50.128 INFO running `"docker" "start" "-a" "b8e63c60fdbc34e49c85cf2d7dc7536693c1545ca53713165855c00e46d5448a"`
Dec 19 16:12:51.832 INFO [stderr]     Checking serde_json v1.0.5
Dec 19 16:12:53.972 INFO [stderr]     Checking rust_examples v0.1.0 (/opt/crater/workdir)
Dec 19 16:12:54.480 INFO [stderr] warning: unused `#[macro_use]` import
Dec 19 16:12:54.480 INFO [stderr]  --> src/main.rs:4:1
Dec 19 16:12:54.480 INFO [stderr]   |
Dec 19 16:12:54.480 INFO [stderr] 4 | #[macro_use]
Dec 19 16:12:54.480 INFO [stderr]   | ^^^^^^^^^^^^
Dec 19 16:12:54.480 INFO [stderr]   |
Dec 19 16:12:54.480 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 16:12:54.480 INFO [stderr] 
Dec 19 16:12:54.480 INFO [stderr] warning: unused import: `config`
Dec 19 16:12:54.480 INFO [stderr]  --> src/configuration.rs:5:5
Dec 19 16:12:54.480 INFO [stderr]   |
Dec 19 16:12:54.480 INFO [stderr] 5 | use config;
Dec 19 16:12:54.480 INFO [stderr]   |     ^^^^^^
Dec 19 16:12:54.480 INFO [stderr] 
Dec 19 16:12:54.524 INFO [stderr] warning: unused `#[macro_use]` import
Dec 19 16:12:54.524 INFO [stderr]  --> src/main.rs:4:1
Dec 19 16:12:54.524 INFO [stderr]   |
Dec 19 16:12:54.524 INFO [stderr] 4 | #[macro_use]
Dec 19 16:12:54.524 INFO [stderr]   | ^^^^^^^^^^^^
Dec 19 16:12:54.524 INFO [stderr]   |
Dec 19 16:12:54.524 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 16:12:54.524 INFO [stderr] 
Dec 19 16:12:54.524 INFO [stderr] warning: unused import: `config`
Dec 19 16:12:54.524 INFO [stderr]  --> src/configuration.rs:5:5
Dec 19 16:12:54.524 INFO [stderr]   |
Dec 19 16:12:54.524 INFO [stderr] 5 | use config;
Dec 19 16:12:54.524 INFO [stderr]   |     ^^^^^^
Dec 19 16:12:54.524 INFO [stderr] 
Dec 19 16:12:54.836 INFO [stderr] warning: unused variable: `config_build`
Dec 19 16:12:54.836 INFO [stderr]   --> src/configuration.rs:11:13
Dec 19 16:12:54.836 INFO [stderr]    |
Dec 19 16:12:54.836 INFO [stderr] 11 |     let mut config_build: Value =from_str(include_str!("config/build.json")).unwrap();
Dec 19 16:12:54.836 INFO [stderr]    |             ^^^^^^^^^^^^ help: consider using `_config_build` instead
Dec 19 16:12:54.836 INFO [stderr]    |
Dec 19 16:12:54.836 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 16:12:54.836 INFO [stderr] 
Dec 19 16:12:54.836 INFO [stderr] warning: unused variable: `config_prod`
Dec 19 16:12:54.836 INFO [stderr]   --> src/configuration.rs:15:13
Dec 19 16:12:54.836 INFO [stderr]    |
Dec 19 16:12:54.836 INFO [stderr] 15 |     let mut config_prod: Value = from_str(include_str!("config/config_prod.json")).unwrap();
Dec 19 16:12:54.836 INFO [stderr]    |             ^^^^^^^^^^^ help: consider using `_config_prod` instead
Dec 19 16:12:54.836 INFO [stderr] 
Dec 19 16:12:54.844 INFO [stderr] warning: variable does not need to be mutable
Dec 19 16:12:54.844 INFO [stderr]   --> src/configuration.rs:11:9
Dec 19 16:12:54.844 INFO [stderr]    |
Dec 19 16:12:54.844 INFO [stderr] 11 |     let mut config_build: Value =from_str(include_str!("config/build.json")).unwrap();
Dec 19 16:12:54.844 INFO [stderr]    |         ----^^^^^^^^^^^^
Dec 19 16:12:54.844 INFO [stderr]    |         |
Dec 19 16:12:54.844 INFO [stderr]    |         help: remove this `mut`
Dec 19 16:12:54.844 INFO [stderr]    |
Dec 19 16:12:54.844 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 16:12:54.844 INFO [stderr] 
Dec 19 16:12:54.844 INFO [stderr] warning: variable does not need to be mutable
Dec 19 16:12:54.844 INFO [stderr]   --> src/configuration.rs:14:9
Dec 19 16:12:54.844 INFO [stderr]    |
Dec 19 16:12:54.844 INFO [stderr] 14 |     let mut config_qa: Value = from_str(include_str!("config/config_qa.json")).unwrap();
Dec 19 16:12:54.844 INFO [stderr]    |         ----^^^^^^^^^
Dec 19 16:12:54.844 INFO [stderr]    |         |
Dec 19 16:12:54.844 INFO [stderr]    |         help: remove this `mut`
Dec 19 16:12:54.845 INFO [stderr] 
Dec 19 16:12:54.845 INFO [stderr] warning: variable does not need to be mutable
Dec 19 16:12:54.845 INFO [stderr]   --> src/configuration.rs:15:9
Dec 19 16:12:54.845 INFO [stderr]    |
Dec 19 16:12:54.845 INFO [stderr] 15 |     let mut config_prod: Value = from_str(include_str!("config/config_prod.json")).unwrap();
Dec 19 16:12:54.845 INFO [stderr]    |         ----^^^^^^^^^^^
Dec 19 16:12:54.845 INFO [stderr]    |         |
Dec 19 16:12:54.845 INFO [stderr]    |         help: remove this `mut`
Dec 19 16:12:54.845 INFO [stderr] 
Dec 19 16:12:54.972 INFO [stderr] warning: unused variable: `config_build`
Dec 19 16:12:54.972 INFO [stderr]   --> src/configuration.rs:11:13
Dec 19 16:12:54.972 INFO [stderr]    |
Dec 19 16:12:54.972 INFO [stderr] 11 |     let mut config_build: Value =from_str(include_str!("config/build.json")).unwrap();
Dec 19 16:12:54.972 INFO [stderr]    |             ^^^^^^^^^^^^ help: consider using `_config_build` instead
Dec 19 16:12:54.972 INFO [stderr]    |
Dec 19 16:12:54.972 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 16:12:54.972 INFO [stderr] 
Dec 19 16:12:54.972 INFO [stderr] warning: unused variable: `config_prod`
Dec 19 16:12:54.972 INFO [stderr]   --> src/configuration.rs:15:13
Dec 19 16:12:54.972 INFO [stderr]    |
Dec 19 16:12:54.972 INFO [stderr] 15 |     let mut config_prod: Value = from_str(include_str!("config/config_prod.json")).unwrap();
Dec 19 16:12:54.972 INFO [stderr]    |             ^^^^^^^^^^^ help: consider using `_config_prod` instead
Dec 19 16:12:54.972 INFO [stderr] 
Dec 19 16:12:54.992 INFO [stderr] warning: variable does not need to be mutable
Dec 19 16:12:54.992 INFO [stderr]   --> src/configuration.rs:11:9
Dec 19 16:12:54.992 INFO [stderr]    |
Dec 19 16:12:54.992 INFO [stderr] 11 |     let mut config_build: Value =from_str(include_str!("config/build.json")).unwrap();
Dec 19 16:12:54.992 INFO [stderr]    |         ----^^^^^^^^^^^^
Dec 19 16:12:54.992 INFO [stderr]    |         |
Dec 19 16:12:54.992 INFO [stderr]    |         help: remove this `mut`
Dec 19 16:12:54.992 INFO [stderr]    |
Dec 19 16:12:54.992 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 16:12:54.992 INFO [stderr] 
Dec 19 16:12:54.992 INFO [stderr] warning: variable does not need to be mutable
Dec 19 16:12:54.992 INFO [stderr]   --> src/configuration.rs:14:9
Dec 19 16:12:54.992 INFO [stderr]    |
Dec 19 16:12:54.992 INFO [stderr] 14 |     let mut config_qa: Value = from_str(include_str!("config/config_qa.json")).unwrap();
Dec 19 16:12:54.992 INFO [stderr]    |         ----^^^^^^^^^
Dec 19 16:12:54.992 INFO [stderr]    |         |
Dec 19 16:12:54.992 INFO [stderr]    |         help: remove this `mut`
Dec 19 16:12:54.992 INFO [stderr] 
Dec 19 16:12:54.992 INFO [stderr] warning: variable does not need to be mutable
Dec 19 16:12:54.992 INFO [stderr]   --> src/configuration.rs:15:9
Dec 19 16:12:54.992 INFO [stderr]    |
Dec 19 16:12:54.992 INFO [stderr] 15 |     let mut config_prod: Value = from_str(include_str!("config/config_prod.json")).unwrap();
Dec 19 16:12:54.993 INFO [stderr]    |         ----^^^^^^^^^^^
Dec 19 16:12:54.993 INFO [stderr]    |         |
Dec 19 16:12:54.993 INFO [stderr]    |         help: remove this `mut`
Dec 19 16:12:54.993 INFO [stderr] 
Dec 19 16:12:55.125 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.36s
Dec 19 16:12:56.025 INFO running `"docker" "inspect" "b8e63c60fdbc34e49c85cf2d7dc7536693c1545ca53713165855c00e46d5448a"`
Dec 19 16:12:56.382 INFO running `"docker" "rm" "-f" "b8e63c60fdbc34e49c85cf2d7dc7536693c1545ca53713165855c00e46d5448a"`
Dec 19 16:12:56.716 INFO [stdout] b8e63c60fdbc34e49c85cf2d7dc7536693c1545ca53713165855c00e46d5448a