[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/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/cpearce/arm-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/cpearce/arm-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cpearce/arm-rs" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/cpearce/arm-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/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 master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cpearce/arm-rs on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "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/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/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/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/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" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking cpearce/arm-rs against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-3/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/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=forbid" "-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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f98327eac4dc01100decbe6ad6594a7506ef154b810727423b9bc425ee5c04d3
[INFO] running `"docker" "start" "-a" "f98327eac4dc01100decbe6ad6594a7506ef154b810727423b9bc425ee5c04d3"`
[INFO] [stderr]     Checking scopeguard v0.3.2
[INFO] [stderr]     Checking libc v0.2.29
[INFO] [stderr]     Checking either v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.2.1
[INFO] [stderr]     Checking futures v0.1.14
[INFO] [stderr]     Checking argparse v0.2.1
[INFO] [stderr]     Checking coco v0.1.1
[INFO] [stderr]     Checking itertools v0.6.1
[INFO] [stderr]     Checking num_cpus v1.6.2
[INFO] [stderr]     Checking rand v0.3.16
[INFO] [stderr]     Checking rayon v0.8.2
[INFO] [stderr]     Checking 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] 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 11.27s
[INFO] running `"docker" "inspect" "f98327eac4dc01100decbe6ad6594a7506ef154b810727423b9bc425ee5c04d3"`
[INFO] running `"docker" "rm" "-f" "f98327eac4dc01100decbe6ad6594a7506ef154b810727423b9bc425ee5c04d3"`
[INFO] [stdout] f98327eac4dc01100decbe6ad6594a7506ef154b810727423b9bc425ee5c04d3