[INFO] updating cached repository kroepke/rate
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kroepke/rate
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kroepke/rate" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/kroepke/rate"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/kroepke/rate'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kroepke/rate" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/kroepke/rate"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/kroepke/rate'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2b2633ca0ac876ca8d9431803d4f6a6a8cae0509
[INFO] sha for GitHub repo kroepke/rate: 2b2633ca0ac876ca8d9431803d4f6a6a8cae0509
[INFO] validating manifest of kroepke/rate on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of kroepke/rate on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing kroepke/rate
[INFO] finished frobbing kroepke/rate
[INFO] frobbed toml for kroepke/rate written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/kroepke/rate/Cargo.toml
[INFO] started frobbing kroepke/rate
[INFO] finished frobbing kroepke/rate
[INFO] frobbed toml for kroepke/rate written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/kroepke/rate/Cargo.toml
[INFO] crate kroepke/rate already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking kroepke/rate against try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-6/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/kroepke/rate:/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" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 47e115ccbe86ce11af9549aa96d3f1efbb284d9a05d4e7613083f13659b5da8e
[INFO] running `"docker" "start" "-a" "47e115ccbe86ce11af9549aa96d3f1efbb284d9a05d4e7613083f13659b5da8e"`
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rate v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:31:47
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn get_reader<P: AsRef<Path>>(path: P) -> Box<io::BufRead> {
[INFO] [stderr]    |                                               ^^^^^^^^^^^ help: use `dyn`: `dyn io::BufRead`
[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:77:33
[INFO] [stderr]    |
[INFO] [stderr] 77 |             let mut reader: Box<BufRead> = get_reader(path);
[INFO] [stderr]    |                                 ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:31:47
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn get_reader<P: AsRef<Path>>(path: P) -> Box<io::BufRead> {
[INFO] [stderr]    |                                               ^^^^^^^^^^^ help: use `dyn`: `dyn io::BufRead`
[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:77:33
[INFO] [stderr]    |
[INFO] [stderr] 77 |             let mut reader: Box<BufRead> = get_reader(path);
[INFO] [stderr]    |                                 ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.15s
[INFO] running `"docker" "inspect" "47e115ccbe86ce11af9549aa96d3f1efbb284d9a05d4e7613083f13659b5da8e"`
[INFO] running `"docker" "rm" "-f" "47e115ccbe86ce11af9549aa96d3f1efbb284d9a05d4e7613083f13659b5da8e"`
[INFO] [stdout] 47e115ccbe86ce11af9549aa96d3f1efbb284d9a05d4e7613083f13659b5da8e