[INFO] updating cached repository banziha104/RustSample
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/banziha104/RustSample
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/banziha104/RustSample" "work/ex/beta-1.37-6/sources/1.36.0/gh/banziha104/RustSample"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/banziha104/RustSample'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/banziha104/RustSample" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/banziha104/RustSample"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/banziha104/RustSample'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9ec3f524c9f5005f8e920a66b640132751f86d23
[INFO] sha for GitHub repo banziha104/RustSample: 9ec3f524c9f5005f8e920a66b640132751f86d23
[INFO] validating manifest of banziha104/RustSample 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 banziha104/RustSample 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 banziha104/RustSample
[INFO] finished frobbing banziha104/RustSample
[INFO] frobbed toml for banziha104/RustSample written to work/ex/beta-1.37-6/sources/1.36.0/gh/banziha104/RustSample/Cargo.toml
[INFO] started frobbing banziha104/RustSample
[INFO] finished frobbing banziha104/RustSample
[INFO] frobbed toml for banziha104/RustSample written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/banziha104/RustSample/Cargo.toml
[INFO] crate banziha104/RustSample 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 banziha104/RustSample against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/banziha104/RustSample:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] e565d4d0b067f0d1d62f2d472860e81c1121ebf39c9b614984d518821cc41f7c
[INFO] running `"docker" "start" "-a" "e565d4d0b067f0d1d62f2d472860e81c1121ebf39c9b614984d518821cc41f7c"`
[INFO] [stderr]    Compiling RustSample v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::thread;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: crate `RustSample` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `rust_sample`
[INFO] [stderr] 
[INFO] [stderr] warning: function `returnFormat` should have a snake case name
[INFO] [stderr]  --> src/main.rs:4:4
[INFO] [stderr]   |
[INFO] [stderr] 4 | fn returnFormat(i : i32) -> String{
[INFO] [stderr]   |    ^^^^^^^^^^^^ help: convert the identifier to snake case: `return_format`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `"docker" "inspect" "e565d4d0b067f0d1d62f2d472860e81c1121ebf39c9b614984d518821cc41f7c"`
[INFO] running `"docker" "rm" "-f" "e565d4d0b067f0d1d62f2d472860e81c1121ebf39c9b614984d518821cc41f7c"`
[INFO] [stdout] e565d4d0b067f0d1d62f2d472860e81c1121ebf39c9b614984d518821cc41f7c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/banziha104/RustSample:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 0c0078757b765e8bb3586a900d97147079a32075e7c96f17637589e7cd0a7062
[INFO] running `"docker" "start" "-a" "0c0078757b765e8bb3586a900d97147079a32075e7c96f17637589e7cd0a7062"`
[INFO] [stderr]    Compiling RustSample v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::thread;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: crate `RustSample` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `rust_sample`
[INFO] [stderr] 
[INFO] [stderr] warning: function `returnFormat` should have a snake case name
[INFO] [stderr]  --> src/main.rs:4:4
[INFO] [stderr]   |
[INFO] [stderr] 4 | fn returnFormat(i : i32) -> String{
[INFO] [stderr]   |    ^^^^^^^^^^^^ help: convert the identifier to snake case: `return_format`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `"docker" "inspect" "0c0078757b765e8bb3586a900d97147079a32075e7c96f17637589e7cd0a7062"`
[INFO] running `"docker" "rm" "-f" "0c0078757b765e8bb3586a900d97147079a32075e7c96f17637589e7cd0a7062"`
[INFO] [stdout] 0c0078757b765e8bb3586a900d97147079a32075e7c96f17637589e7cd0a7062
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/banziha104/RustSample:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] b320f1c68ce5fee53c914787f21cd489950aaf6d54fd6e8ff377b136471f2c5e
[INFO] running `"docker" "start" "-a" "b320f1c68ce5fee53c914787f21cd489950aaf6d54fd6e8ff377b136471f2c5e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/RustSample-dc3058f6ca2eae0f
[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" "b320f1c68ce5fee53c914787f21cd489950aaf6d54fd6e8ff377b136471f2c5e"`
[INFO] running `"docker" "rm" "-f" "b320f1c68ce5fee53c914787f21cd489950aaf6d54fd6e8ff377b136471f2c5e"`
[INFO] [stdout] b320f1c68ce5fee53c914787f21cd489950aaf6d54fd6e8ff377b136471f2c5e