[INFO] updating cached repository bernabeguzman/Elma_Rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/bernabeguzman/Elma_Rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/bernabeguzman/Elma_Rust" "work/ex/beta-1.37-6/sources/1.36.0/gh/bernabeguzman/Elma_Rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/bernabeguzman/Elma_Rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/bernabeguzman/Elma_Rust" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/bernabeguzman/Elma_Rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/bernabeguzman/Elma_Rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 87ed832c569a2193b0a9aff5bd685cc79e42d263
[INFO] sha for GitHub repo bernabeguzman/Elma_Rust: 87ed832c569a2193b0a9aff5bd685cc79e42d263
[INFO] validating manifest of bernabeguzman/Elma_Rust on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of bernabeguzman/Elma_Rust on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing bernabeguzman/Elma_Rust
[INFO] finished frobbing bernabeguzman/Elma_Rust
[INFO] frobbed toml for bernabeguzman/Elma_Rust written to work/ex/beta-1.37-6/sources/1.36.0/gh/bernabeguzman/Elma_Rust/Cargo.toml
[INFO] started frobbing bernabeguzman/Elma_Rust
[INFO] finished frobbing bernabeguzman/Elma_Rust
[INFO] frobbed toml for bernabeguzman/Elma_Rust written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/bernabeguzman/Elma_Rust/Cargo.toml
[INFO] crate bernabeguzman/Elma_Rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing bernabeguzman/Elma_Rust against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/bernabeguzman/Elma_Rust:/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=warn" "-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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] b83623e1507383ddc99cf9c71cc1ff81a7b4a15cfcb5ac97da601fbf0b71afab
[INFO] running `"docker" "start" "-a" "b83623e1507383ddc99cf9c71cc1ff81a7b4a15cfcb5ac97da601fbf0b71afab"`
[INFO] [stderr]    Compiling tutorial-rust-docker v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `f32`, `f64`, `i16`, `i64`, `i8`, `isize`, `u16`, `u32`, `u64`, `usize`
[INFO] [stderr]  --> src/main.rs:2:11
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stderr]   |           ^^  ^^^       ^^^      ^^^  ^^^  ^^^  ^^^^^  ^^^^^  ^^^  ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::stdin`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::stdin;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `num`
[INFO] [stderr]   --> src/main.rs:17:6
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let num = 10;
[INFO] [stderr]    |         ^^^ help: consider prefixing with an underscore: `_num`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `age`
[INFO] [stderr]   --> src/main.rs:18:10
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let mut age: i32 = 40;
[INFO] [stderr]    |             ^^^ help: consider prefixing with an underscore: `_age`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:18:6
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let mut age: i32 = 40;
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `"docker" "inspect" "b83623e1507383ddc99cf9c71cc1ff81a7b4a15cfcb5ac97da601fbf0b71afab"`
[INFO] running `"docker" "rm" "-f" "b83623e1507383ddc99cf9c71cc1ff81a7b4a15cfcb5ac97da601fbf0b71afab"`
[INFO] [stdout] b83623e1507383ddc99cf9c71cc1ff81a7b4a15cfcb5ac97da601fbf0b71afab
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/bernabeguzman/Elma_Rust:/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] ccdec38e1f187713d110580c2cea555032bfff650f4790da8dc86a8fff726a55
[INFO] running `"docker" "start" "-a" "ccdec38e1f187713d110580c2cea555032bfff650f4790da8dc86a8fff726a55"`
[INFO] [stderr]    Compiling tutorial-rust-docker v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `f32`, `f64`, `i16`, `i64`, `i8`, `isize`, `u16`, `u32`, `u64`, `usize`
[INFO] [stderr]  --> src/main.rs:2:11
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stderr]   |           ^^  ^^^       ^^^      ^^^  ^^^  ^^^  ^^^^^  ^^^^^  ^^^  ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::stdin`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::stdin;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `num`
[INFO] [stderr]   --> src/main.rs:17:6
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let num = 10;
[INFO] [stderr]    |         ^^^ help: consider prefixing with an underscore: `_num`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `age`
[INFO] [stderr]   --> src/main.rs:18:10
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let mut age: i32 = 40;
[INFO] [stderr]    |             ^^^ help: consider prefixing with an underscore: `_age`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:18:6
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let mut age: i32 = 40;
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `"docker" "inspect" "ccdec38e1f187713d110580c2cea555032bfff650f4790da8dc86a8fff726a55"`
[INFO] running `"docker" "rm" "-f" "ccdec38e1f187713d110580c2cea555032bfff650f4790da8dc86a8fff726a55"`
[INFO] [stdout] ccdec38e1f187713d110580c2cea555032bfff650f4790da8dc86a8fff726a55
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/bernabeguzman/Elma_Rust:/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 73c299ffae212d5dda1fb020c3a8785719a5f1c9e244676818593b40d0cf5e67
[INFO] running `"docker" "start" "-a" "73c299ffae212d5dda1fb020c3a8785719a5f1c9e244676818593b40d0cf5e67"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tutorial_rust_docker-91a953470d2dfb4c
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "73c299ffae212d5dda1fb020c3a8785719a5f1c9e244676818593b40d0cf5e67"`
[INFO] running `"docker" "rm" "-f" "73c299ffae212d5dda1fb020c3a8785719a5f1c9e244676818593b40d0cf5e67"`
[INFO] [stdout] 73c299ffae212d5dda1fb020c3a8785719a5f1c9e244676818593b40d0cf5e67