[INFO] cloning repository pranavb/rust101
[INFO] running `"git" "clone" "--bare" "git://github.com/pranavb/rust101.git" "work/cache/sources/gh/pranavb/rust101"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/pranavb/rust101'...
[INFO] running `"git" "clone" "work/cache/sources/gh/pranavb/rust101" "work/ex/beta-1.37-6/sources/1.36.0/gh/pranavb/rust101"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/pranavb/rust101'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/pranavb/rust101" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/pranavb/rust101"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/pranavb/rust101'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a91e440c2937ec797b7805ce8130c5fb2f6ce814
[INFO] sha for GitHub repo pranavb/rust101: a91e440c2937ec797b7805ce8130c5fb2f6ce814
[INFO] validating manifest of pranavb/rust101 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 pranavb/rust101 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 pranavb/rust101
[INFO] finished frobbing pranavb/rust101
[INFO] frobbed toml for pranavb/rust101 written to work/ex/beta-1.37-6/sources/1.36.0/gh/pranavb/rust101/Cargo.toml
[INFO] started frobbing pranavb/rust101
[INFO] finished frobbing pranavb/rust101
[INFO] frobbed toml for pranavb/rust101 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/pranavb/rust101/Cargo.toml
[INFO] crate pranavb/rust101 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 pranavb/rust101 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-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/pranavb/rust101:/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] a816a842b3812717906192974bf057d7636d64c12fc7c0e04a34f0202763c2c3
[INFO] running `"docker" "start" "-a" "a816a842b3812717906192974bf057d7636d64c12fc7c0e04a34f0202763c2c3"`
[INFO] [stderr]    Compiling rand_chacha v0.2.0
[INFO] [stderr]    Compiling rand v0.7.0
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `guessing_game`
[INFO] [stderr]   --> src/main.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn guessing_game() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.11s
[INFO] running `"docker" "inspect" "a816a842b3812717906192974bf057d7636d64c12fc7c0e04a34f0202763c2c3"`
[INFO] running `"docker" "rm" "-f" "a816a842b3812717906192974bf057d7636d64c12fc7c0e04a34f0202763c2c3"`
[INFO] [stdout] a816a842b3812717906192974bf057d7636d64c12fc7c0e04a34f0202763c2c3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/pranavb/rust101:/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] 9c11ac0a20d7825e703b790455b0522dd7702bbe72ae0363bb3488594e150fad
[INFO] running `"docker" "start" "-a" "9c11ac0a20d7825e703b790455b0522dd7702bbe72ae0363bb3488594e150fad"`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `guessing_game`
[INFO] [stderr]   --> src/main.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn guessing_game() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `"docker" "inspect" "9c11ac0a20d7825e703b790455b0522dd7702bbe72ae0363bb3488594e150fad"`
[INFO] running `"docker" "rm" "-f" "9c11ac0a20d7825e703b790455b0522dd7702bbe72ae0363bb3488594e150fad"`
[INFO] [stdout] 9c11ac0a20d7825e703b790455b0522dd7702bbe72ae0363bb3488594e150fad
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/pranavb/rust101:/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] fce3ee31a0333470f0c05ea426dbe431275e4d15736e0f18fca213b01c65f66c
[INFO] running `"docker" "start" "-a" "fce3ee31a0333470f0c05ea426dbe431275e4d15736e0f18fca213b01c65f66c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/guessing_game-61964ec1958cdb7a
[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" "fce3ee31a0333470f0c05ea426dbe431275e4d15736e0f18fca213b01c65f66c"`
[INFO] running `"docker" "rm" "-f" "fce3ee31a0333470f0c05ea426dbe431275e4d15736e0f18fca213b01c65f66c"`
[INFO] [stdout] fce3ee31a0333470f0c05ea426dbe431275e4d15736e0f18fca213b01c65f66c