[INFO] updating cached repository cpearce/arm-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cpearce/arm-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cpearce/arm-rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/cpearce/arm-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/cpearce/arm-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cpearce/arm-rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cpearce/arm-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cpearce/arm-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 14c2e00a8d6ab6f081714af58d773f04f6321a4b
[INFO] sha for GitHub repo cpearce/arm-rs: 14c2e00a8d6ab6f081714af58d773f04f6321a4b
[INFO] validating manifest of cpearce/arm-rs 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 cpearce/arm-rs 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 cpearce/arm-rs
[INFO] finished frobbing cpearce/arm-rs
[INFO] frobbed toml for cpearce/arm-rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/cpearce/arm-rs/Cargo.toml
[INFO] started frobbing cpearce/arm-rs
[INFO] finished frobbing cpearce/arm-rs
[INFO] frobbed toml for cpearce/arm-rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cpearce/arm-rs/Cargo.toml
[INFO] crate cpearce/arm-rs 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 cpearce/arm-rs 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-4/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/cpearce/arm-rs:/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] 2bdd140d88dd592461b08041b3634b107bcde5b0cc086f3993263877e3c22eba
[INFO] running `"docker" "start" "-a" "2bdd140d88dd592461b08041b3634b107bcde5b0cc086f3993263877e3c22eba"`
[INFO] [stderr]    Compiling arm v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:45:90
[INFO] [stderr]    |
[INFO] [stderr] 45 | fn count_item_frequencies(reader: TransactionReader) -> Result<(ItemCounter, usize), Box<Error>> {
[INFO] [stderr]    |                                                                                          ^^^^^ help: use `dyn`: `dyn Error`
[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/main.rs:61:55
[INFO] [stderr]    |
[INFO] [stderr] 61 | fn mine_fp_growth(args: &Arguments) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:160:21
[INFO] [stderr]     |
[INFO] [stderr] 160 | ) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:185:21
[INFO] [stderr]     |
[INFO] [stderr] 185 | ) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.94s
[INFO] running `"docker" "inspect" "2bdd140d88dd592461b08041b3634b107bcde5b0cc086f3993263877e3c22eba"`
[INFO] running `"docker" "rm" "-f" "2bdd140d88dd592461b08041b3634b107bcde5b0cc086f3993263877e3c22eba"`
[INFO] [stdout] 2bdd140d88dd592461b08041b3634b107bcde5b0cc086f3993263877e3c22eba
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/cpearce/arm-rs:/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] fb13d25950e8619d6d75def76d2ff48cd57b1b0f7a7f4e319404e97e4c40deaa
[INFO] running `"docker" "start" "-a" "fb13d25950e8619d6d75def76d2ff48cd57b1b0f7a7f4e319404e97e4c40deaa"`
[INFO] [stderr]    Compiling arm v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:45:90
[INFO] [stderr]    |
[INFO] [stderr] 45 | fn count_item_frequencies(reader: TransactionReader) -> Result<(ItemCounter, usize), Box<Error>> {
[INFO] [stderr]    |                                                                                          ^^^^^ help: use `dyn`: `dyn Error`
[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/main.rs:61:55
[INFO] [stderr]    |
[INFO] [stderr] 61 | fn mine_fp_growth(args: &Arguments) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:160:21
[INFO] [stderr]     |
[INFO] [stderr] 160 | ) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:185:21
[INFO] [stderr]     |
[INFO] [stderr] 185 | ) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.09s
[INFO] running `"docker" "inspect" "fb13d25950e8619d6d75def76d2ff48cd57b1b0f7a7f4e319404e97e4c40deaa"`
[INFO] running `"docker" "rm" "-f" "fb13d25950e8619d6d75def76d2ff48cd57b1b0f7a7f4e319404e97e4c40deaa"`
[INFO] [stdout] fb13d25950e8619d6d75def76d2ff48cd57b1b0f7a7f4e319404e97e4c40deaa
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/cpearce/arm-rs:/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] 1b3361c9ad9c3462fe657937c077bc66d2c0b17bd4a944953acc5e1cfc26fa96
[INFO] running `"docker" "start" "-a" "1b3361c9ad9c3462fe657937c077bc66d2c0b17bd4a944953acc5e1cfc26fa96"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/arm-6a4e74bfb89d0248
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test index::tests::test_index ... ok
[INFO] [stdout] test vec_sets::tests::test_union ... ok
[INFO] [stdout] test transaction_reader::tests::test_dedupe_sorted ... ok
[INFO] [stdout] test vec_sets::tests::test_split_out_item ... ok
[INFO] [stdout] test generate_rules::tests::test_kosarak ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "1b3361c9ad9c3462fe657937c077bc66d2c0b17bd4a944953acc5e1cfc26fa96"`
[INFO] running `"docker" "rm" "-f" "1b3361c9ad9c3462fe657937c077bc66d2c0b17bd4a944953acc5e1cfc26fa96"`
[INFO] [stdout] 1b3361c9ad9c3462fe657937c077bc66d2c0b17bd4a944953acc5e1cfc26fa96