[INFO] updating cached repository farhanpatwary/cool_project
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/farhanpatwary/cool_project
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/farhanpatwary/cool_project" "work/ex/beta-1.37-6/sources/1.36.0/gh/farhanpatwary/cool_project"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/farhanpatwary/cool_project'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/farhanpatwary/cool_project" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/farhanpatwary/cool_project"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/farhanpatwary/cool_project'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 78c01dde5145cc6e42069e61a5f02bb0663ff9bd
[INFO] sha for GitHub repo farhanpatwary/cool_project: 78c01dde5145cc6e42069e61a5f02bb0663ff9bd
[INFO] validating manifest of farhanpatwary/cool_project 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 farhanpatwary/cool_project 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 farhanpatwary/cool_project
[INFO] finished frobbing farhanpatwary/cool_project
[INFO] frobbed toml for farhanpatwary/cool_project written to work/ex/beta-1.37-6/sources/1.36.0/gh/farhanpatwary/cool_project/Cargo.toml
[INFO] started frobbing farhanpatwary/cool_project
[INFO] finished frobbing farhanpatwary/cool_project
[INFO] frobbed toml for farhanpatwary/cool_project written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/farhanpatwary/cool_project/Cargo.toml
[INFO] crate farhanpatwary/cool_project 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 farhanpatwary/cool_project 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-7/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/farhanpatwary/cool_project:/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] 146cc4a7a0e83fefb422f6214a57a501ba1232ec38288438c2220b49c2c2fe7e
[INFO] running `"docker" "start" "-a" "146cc4a7a0e83fefb422f6214a57a501ba1232ec38288438c2220b49c2c2fe7e"`
[INFO] [stderr]    Compiling vob v2.0.0
[INFO] [stderr]    Compiling cool_project v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use] extern crate vob;
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |     for mut x in 0..v1.len(){
[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 2.57s
[INFO] running `"docker" "inspect" "146cc4a7a0e83fefb422f6214a57a501ba1232ec38288438c2220b49c2c2fe7e"`
[INFO] running `"docker" "rm" "-f" "146cc4a7a0e83fefb422f6214a57a501ba1232ec38288438c2220b49c2c2fe7e"`
[INFO] [stdout] 146cc4a7a0e83fefb422f6214a57a501ba1232ec38288438c2220b49c2c2fe7e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/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/farhanpatwary/cool_project:/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] 85455ccc730c52c4ffbd723758f48afa9ce865e46ee5a8f2ac10fb63b357da78
[INFO] running `"docker" "start" "-a" "85455ccc730c52c4ffbd723758f48afa9ce865e46ee5a8f2ac10fb63b357da78"`
[INFO] [stderr]    Compiling cool_project v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use] extern crate vob;
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |     for mut x in 0..v1.len(){
[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 0.39s
[INFO] running `"docker" "inspect" "85455ccc730c52c4ffbd723758f48afa9ce865e46ee5a8f2ac10fb63b357da78"`
[INFO] running `"docker" "rm" "-f" "85455ccc730c52c4ffbd723758f48afa9ce865e46ee5a8f2ac10fb63b357da78"`
[INFO] [stdout] 85455ccc730c52c4ffbd723758f48afa9ce865e46ee5a8f2ac10fb63b357da78
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/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/farhanpatwary/cool_project:/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] c3176608ed811cf4acb3da10c5af4aaf7f455ba4536af1f5cfe433096aac4364
[INFO] running `"docker" "start" "-a" "c3176608ed811cf4acb3da10c5af4aaf7f455ba4536af1f5cfe433096aac4364"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/cool_project-8cead6a8b94c5642
[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" "c3176608ed811cf4acb3da10c5af4aaf7f455ba4536af1f5cfe433096aac4364"`
[INFO] running `"docker" "rm" "-f" "c3176608ed811cf4acb3da10c5af4aaf7f455ba4536af1f5cfe433096aac4364"`
[INFO] [stdout] c3176608ed811cf4acb3da10c5af4aaf7f455ba4536af1f5cfe433096aac4364