[INFO] updating cached repository aunpyz/RustMapReduce
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/aunpyz/RustMapReduce
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/aunpyz/RustMapReduce" "work/ex/beta-1.38-1/sources/1.37.0/gh/aunpyz/RustMapReduce"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/aunpyz/RustMapReduce'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/aunpyz/RustMapReduce" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aunpyz/RustMapReduce"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aunpyz/RustMapReduce'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 56cb693a6806b982f3bd91ca60056a1012a45b71
[INFO] sha for GitHub repo aunpyz/RustMapReduce: 56cb693a6806b982f3bd91ca60056a1012a45b71
[INFO] validating manifest of aunpyz/RustMapReduce on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of aunpyz/RustMapReduce on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing aunpyz/RustMapReduce
[INFO] finished frobbing aunpyz/RustMapReduce
[INFO] frobbed toml for aunpyz/RustMapReduce written to work/ex/beta-1.38-1/sources/1.37.0/gh/aunpyz/RustMapReduce/Cargo.toml
[INFO] started frobbing aunpyz/RustMapReduce
[INFO] finished frobbing aunpyz/RustMapReduce
[INFO] frobbed toml for aunpyz/RustMapReduce written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aunpyz/RustMapReduce/Cargo.toml
[INFO] crate aunpyz/RustMapReduce already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing aunpyz/RustMapReduce against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aunpyz/RustMapReduce:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] aad1399a5fa7024fdefca6133b18e84f4e4320dec2bb2b8ba9ab47ced6d01324
[INFO] running `"docker" "start" "-a" "aad1399a5fa7024fdefca6133b18e84f4e4320dec2bb2b8ba9ab47ced6d01324"`
[INFO] [stderr]    Compiling map_reduce v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `map`
[INFO] [stderr]   --> src/lib.rs:50:1
[INFO] [stderr]    |
[INFO] [stderr] 50 | fn map() {
[INFO] [stderr]    | ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `reduce`
[INFO] [stderr]   --> src/lib.rs:54:1
[INFO] [stderr]    |
[INFO] [stderr] 54 | fn reduce() {
[INFO] [stderr]    | ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `"docker" "inspect" "aad1399a5fa7024fdefca6133b18e84f4e4320dec2bb2b8ba9ab47ced6d01324"`
[INFO] running `"docker" "rm" "-f" "aad1399a5fa7024fdefca6133b18e84f4e4320dec2bb2b8ba9ab47ced6d01324"`
[INFO] [stdout] aad1399a5fa7024fdefca6133b18e84f4e4320dec2bb2b8ba9ab47ced6d01324
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aunpyz/RustMapReduce:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 45efc4d202bb6428f1ac1ab1640cd5396b6b65d540345a07e9a0c88f70aeed16
[INFO] running `"docker" "start" "-a" "45efc4d202bb6428f1ac1ab1640cd5396b6b65d540345a07e9a0c88f70aeed16"`
[INFO] [stderr]    Compiling map_reduce v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `map`
[INFO] [stderr]   --> src/lib.rs:50:1
[INFO] [stderr]    |
[INFO] [stderr] 50 | fn map() {
[INFO] [stderr]    | ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `reduce`
[INFO] [stderr]   --> src/lib.rs:54:1
[INFO] [stderr]    |
[INFO] [stderr] 54 | fn reduce() {
[INFO] [stderr]    | ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `"docker" "inspect" "45efc4d202bb6428f1ac1ab1640cd5396b6b65d540345a07e9a0c88f70aeed16"`
[INFO] running `"docker" "rm" "-f" "45efc4d202bb6428f1ac1ab1640cd5396b6b65d540345a07e9a0c88f70aeed16"`
[INFO] [stdout] 45efc4d202bb6428f1ac1ab1640cd5396b6b65d540345a07e9a0c88f70aeed16
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aunpyz/RustMapReduce:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] a52b78cde864568ca37f51203387784a2a77d382ba6d6cc5f6b00d7366847006
[INFO] running `"docker" "start" "-a" "a52b78cde864568ca37f51203387784a2a77d382ba6d6cc5f6b00d7366847006"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/map_reduce-db5e58b4df798c89
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test blank_data ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/map_reduce-ee8d2928050412c9
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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] [stderr]    Doc-tests map_reduce
[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" "a52b78cde864568ca37f51203387784a2a77d382ba6d6cc5f6b00d7366847006"`
[INFO] running `"docker" "rm" "-f" "a52b78cde864568ca37f51203387784a2a77d382ba6d6cc5f6b00d7366847006"`
[INFO] [stdout] a52b78cde864568ca37f51203387784a2a77d382ba6d6cc5f6b00d7366847006