[INFO] crate mapreduce 0.1.0 is already in cache
[INFO] extracting crate mapreduce 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/mapreduce/0.1.0
[INFO] extracting crate mapreduce 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/mapreduce/0.1.0
[INFO] validating manifest of mapreduce-0.1.0 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 mapreduce-0.1.0 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 mapreduce-0.1.0
[INFO] finished frobbing mapreduce-0.1.0
[INFO] frobbed toml for mapreduce-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/mapreduce/0.1.0/Cargo.toml
[INFO] started frobbing mapreduce-0.1.0
[INFO] finished frobbing mapreduce-0.1.0
[INFO] frobbed toml for mapreduce-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/mapreduce/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 mapreduce-0.1.0 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-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/mapreduce/0.1.0:/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] 011d541a0cd3900d5d9f1c0622ec97ca36976d4bf760736f1d7d0a7a80f03bff
[INFO] running `"docker" "start" "-a" "011d541a0cd3900d5d9f1c0622ec97ca36976d4bf760736f1d7d0a7a80f03bff"`
[INFO] [stderr]    Compiling mapreduce v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mapreduce.rs:11:43
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub type MapFunc<T> = fn(item: T, writer: Writer);
[INFO] [stderr]    |                                           ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mapreduce.rs:13:46
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub type MapperFunc<T> = fn(item: T, writer: Writer, cancel: fn(Error));
[INFO] [stderr]    |                                              ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mapreduce.rs:14:55
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub type ReducerFunc<T> = fn(pipe: Sender<T>, writer: Writer, cancel: fn(Error));
[INFO] [stderr]    |                                                       ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ch`
[INFO] [stderr]   --> src/mapreduce.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn drain<T>(ch:Receiver<T>){
[INFO] [stderr]    |             ^^ help: consider prefixing with an underscore: `_ch`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: private type `mapreduce::MapReduceOption` in public interface (error E0446)
[INFO] [stderr]   --> src/mapreduce.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub type Option = fn(opts: &mut MapReduceOption);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(private_in_public)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `drain`
[INFO] [stderr]   --> src/mapreduce.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn drain<T>(ch:Receiver<T>){
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `"docker" "inspect" "011d541a0cd3900d5d9f1c0622ec97ca36976d4bf760736f1d7d0a7a80f03bff"`
[INFO] running `"docker" "rm" "-f" "011d541a0cd3900d5d9f1c0622ec97ca36976d4bf760736f1d7d0a7a80f03bff"`
[INFO] [stdout] 011d541a0cd3900d5d9f1c0622ec97ca36976d4bf760736f1d7d0a7a80f03bff
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/mapreduce/0.1.0:/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] 66a967ff89d634b062fec8038b59ea5c637af3b8e9cb7f1d3c2a11331eba2041
[INFO] running `"docker" "start" "-a" "66a967ff89d634b062fec8038b59ea5c637af3b8e9cb7f1d3c2a11331eba2041"`
[INFO] [stderr]    Compiling mapreduce v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mapreduce.rs:11:43
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub type MapFunc<T> = fn(item: T, writer: Writer);
[INFO] [stderr]    |                                           ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mapreduce.rs:13:46
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub type MapperFunc<T> = fn(item: T, writer: Writer, cancel: fn(Error));
[INFO] [stderr]    |                                              ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mapreduce.rs:14:55
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub type ReducerFunc<T> = fn(pipe: Sender<T>, writer: Writer, cancel: fn(Error));
[INFO] [stderr]    |                                                       ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ch`
[INFO] [stderr]   --> src/mapreduce.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn drain<T>(ch:Receiver<T>){
[INFO] [stderr]    |             ^^ help: consider prefixing with an underscore: `_ch`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: private type `mapreduce::MapReduceOption` in public interface (error E0446)
[INFO] [stderr]   --> src/mapreduce.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub type Option = fn(opts: &mut MapReduceOption);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(private_in_public)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `drain`
[INFO] [stderr]   --> src/mapreduce.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn drain<T>(ch:Receiver<T>){
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `"docker" "inspect" "66a967ff89d634b062fec8038b59ea5c637af3b8e9cb7f1d3c2a11331eba2041"`
[INFO] running `"docker" "rm" "-f" "66a967ff89d634b062fec8038b59ea5c637af3b8e9cb7f1d3c2a11331eba2041"`
[INFO] [stdout] 66a967ff89d634b062fec8038b59ea5c637af3b8e9cb7f1d3c2a11331eba2041
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/mapreduce/0.1.0:/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] 5360bcb8f8e47360ff8301bf2a38fbd81dc28826c24673b37dff602fd1014445
[INFO] running `"docker" "start" "-a" "5360bcb8f8e47360ff8301bf2a38fbd81dc28826c24673b37dff602fd1014445"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/mapreduce-86d41faccb773ddc
[INFO] [stderr]    Doc-tests mapreduce
[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] [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" "5360bcb8f8e47360ff8301bf2a38fbd81dc28826c24673b37dff602fd1014445"`
[INFO] running `"docker" "rm" "-f" "5360bcb8f8e47360ff8301bf2a38fbd81dc28826c24673b37dff602fd1014445"`
[INFO] [stdout] 5360bcb8f8e47360ff8301bf2a38fbd81dc28826c24673b37dff602fd1014445