[INFO] updating cached repository rawfalafel/tarocoin
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rawfalafel/tarocoin
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rawfalafel/tarocoin" "work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/rawfalafel/tarocoin"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/rawfalafel/tarocoin'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rawfalafel/tarocoin" "work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/rawfalafel/tarocoin"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/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#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rawfalafel/tarocoin on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-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-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/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-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/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" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking rawfalafel/tarocoin against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-0/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/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" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b22b8d2ed8ed734e6a2babf4337e53c0ffee2f6ce3802db7dfb8a6a67fec114e
[INFO] running `"docker" "start" "-a" "b22b8d2ed8ed734e6a2babf4337e53c0ffee2f6ce3802db7dfb8a6a67fec114e"`
[INFO] [stderr]    Compiling secp256k1 v0.7.1 (https://github.com/apoelstra/rust-secp256k1?rev=d0dc0#d0dc0f89)
[INFO] [stderr]     Checking serde_json v1.0.2
[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 5.38s
[INFO] running `"docker" "inspect" "b22b8d2ed8ed734e6a2babf4337e53c0ffee2f6ce3802db7dfb8a6a67fec114e"`
[INFO] running `"docker" "rm" "-f" "b22b8d2ed8ed734e6a2babf4337e53c0ffee2f6ce3802db7dfb8a6a67fec114e"`
[INFO] [stdout] b22b8d2ed8ed734e6a2babf4337e53c0ffee2f6ce3802db7dfb8a6a67fec114e