[INFO] updating cached repository CV001A/Hello_world_rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/CV001A/Hello_world_rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/CV001A/Hello_world_rust" "work/ex/beta-1.37-6/sources/1.36.0/gh/CV001A/Hello_world_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/CV001A/Hello_world_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/CV001A/Hello_world_rust" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/CV001A/Hello_world_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/CV001A/Hello_world_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0f4222b035221aed741e37800e8c3f77076d44b5
[INFO] sha for GitHub repo CV001A/Hello_world_rust: 0f4222b035221aed741e37800e8c3f77076d44b5
[INFO] validating manifest of CV001A/Hello_world_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 CV001A/Hello_world_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 CV001A/Hello_world_rust
[INFO] finished frobbing CV001A/Hello_world_rust
[INFO] frobbed toml for CV001A/Hello_world_rust written to work/ex/beta-1.37-6/sources/1.36.0/gh/CV001A/Hello_world_rust/Cargo.toml
[INFO] started frobbing CV001A/Hello_world_rust
[INFO] finished frobbing CV001A/Hello_world_rust
[INFO] frobbed toml for CV001A/Hello_world_rust written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/CV001A/Hello_world_rust/Cargo.toml
[INFO] crate CV001A/Hello_world_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] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing CV001A/Hello_world_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-3/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/CV001A/Hello_world_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] fc937f7c7cd9b97b2a45c732f90bd193f5d02e14993a39f953ea1b8626396057
[INFO] running `"docker" "start" "-a" "fc937f7c7cd9b97b2a45c732f90bd193f5d02e14993a39f953ea1b8626396057"`
[INFO] [stderr]    Compiling Hello_world_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: crate `Hello_world_rust` 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: `hello_world_rust`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `"docker" "inspect" "fc937f7c7cd9b97b2a45c732f90bd193f5d02e14993a39f953ea1b8626396057"`
[INFO] running `"docker" "rm" "-f" "fc937f7c7cd9b97b2a45c732f90bd193f5d02e14993a39f953ea1b8626396057"`
[INFO] [stdout] fc937f7c7cd9b97b2a45c732f90bd193f5d02e14993a39f953ea1b8626396057
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/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/CV001A/Hello_world_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] 1a66538cd32efc36119bcf2aab4a19cb79ff2df0001910c5c44a8eb1327c3d79
[INFO] running `"docker" "start" "-a" "1a66538cd32efc36119bcf2aab4a19cb79ff2df0001910c5c44a8eb1327c3d79"`
[INFO] [stderr]    Compiling Hello_world_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: crate `Hello_world_rust` 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: `hello_world_rust`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `"docker" "inspect" "1a66538cd32efc36119bcf2aab4a19cb79ff2df0001910c5c44a8eb1327c3d79"`
[INFO] running `"docker" "rm" "-f" "1a66538cd32efc36119bcf2aab4a19cb79ff2df0001910c5c44a8eb1327c3d79"`
[INFO] [stdout] 1a66538cd32efc36119bcf2aab4a19cb79ff2df0001910c5c44a8eb1327c3d79
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/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/CV001A/Hello_world_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] 7f9c9f91403ae822dadd9c5de8fbfce668c7d81ccf805b3a1ed13bcb60459d10
[INFO] running `"docker" "start" "-a" "7f9c9f91403ae822dadd9c5de8fbfce668c7d81ccf805b3a1ed13bcb60459d10"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/Hello_world_rust-10e660d66c0957bf
[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" "7f9c9f91403ae822dadd9c5de8fbfce668c7d81ccf805b3a1ed13bcb60459d10"`
[INFO] running `"docker" "rm" "-f" "7f9c9f91403ae822dadd9c5de8fbfce668c7d81ccf805b3a1ed13bcb60459d10"`
[INFO] [stdout] 7f9c9f91403ae822dadd9c5de8fbfce668c7d81ccf805b3a1ed13bcb60459d10