[INFO] cloning repository rawfalafel/tarocoin
[INFO] running `"git" "clone" "--bare" "git://github.com/rawfalafel/tarocoin.git" "work/cache/sources/gh/rawfalafel/tarocoin"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/rawfalafel/tarocoin'...
[INFO] running `"git" "clone" "work/cache/sources/gh/rawfalafel/tarocoin" "work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/rawfalafel/tarocoin"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/rawfalafel/tarocoin'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rawfalafel/tarocoin" "work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/rawfalafel/tarocoin"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/rawfalafel/tarocoin'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6cb3a780861629bd8e7a4995216b9442993c8d43
[INFO] sha for GitHub repo rawfalafel/tarocoin: 6cb3a780861629bd8e7a4995216b9442993c8d43
[INFO] validating manifest of rawfalafel/tarocoin on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rawfalafel/tarocoin on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rawfalafel/tarocoin
[INFO] finished frobbing rawfalafel/tarocoin
[INFO] frobbed toml for rawfalafel/tarocoin written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/rawfalafel/tarocoin/Cargo.toml
[INFO] started frobbing rawfalafel/tarocoin
[INFO] finished frobbing rawfalafel/tarocoin
[INFO] frobbed toml for rawfalafel/tarocoin written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/rawfalafel/tarocoin/Cargo.toml
[INFO] crate rawfalafel/tarocoin already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Updating git repository `https://github.com/apoelstra/rust-secp256k1`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking rawfalafel/tarocoin against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-7/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/rawfalafel/tarocoin:/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" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5b31b75842f8ccca3c4a015cac7c3cf7cab68012e4a200518e2082181508096d
[INFO] running `"docker" "start" "-a" "5b31b75842f8ccca3c4a015cac7c3cf7cab68012e4a200518e2082181508096d"`
[INFO] [stderr]    Compiling secp256k1 v0.7.1 (https://github.com/apoelstra/rust-secp256k1?rev=d0dc0#d0dc0f89)
[INFO] [stderr]     Checking nodrop v0.1.9
[INFO] [stderr]     Checking arrayvec v0.3.23
[INFO] [stderr]     Checking tarocoin v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:21:32
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[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/error.rs:23:53
[INFO] [stderr]    |
[INFO] [stderr] 23 |             Error::IOError(ref err) => Some(err as &StdError),
[INFO] [stderr]    |                                                     ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:24:62
[INFO] [stderr]    |
[INFO] [stderr] 24 |             Error::Secp256k1Failure(ref err) => Some(err as &StdError)
[INFO] [stderr]    |                                                              ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:21:32
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[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/error.rs:23:53
[INFO] [stderr]    |
[INFO] [stderr] 23 |             Error::IOError(ref err) => Some(err as &StdError),
[INFO] [stderr]    |                                                     ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:24:62
[INFO] [stderr]    |
[INFO] [stderr] 24 |             Error::Secp256k1Failure(ref err) => Some(err as &StdError)
[INFO] [stderr]    |                                                              ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.88s
[INFO] running `"docker" "inspect" "5b31b75842f8ccca3c4a015cac7c3cf7cab68012e4a200518e2082181508096d"`
[INFO] running `"docker" "rm" "-f" "5b31b75842f8ccca3c4a015cac7c3cf7cab68012e4a200518e2082181508096d"`
[INFO] [stdout] 5b31b75842f8ccca3c4a015cac7c3cf7cab68012e4a200518e2082181508096d