[INFO] updating cached repository https://github.com/OpenSTFoundation/rust-mosaic
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 023f3b475fdfdaaa769600329b5b834d70ad2bba
[INFO] checking OpenSTFoundation/rust-mosaic against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FOpenSTFoundation%2Frust-mosaic" "work/builds/worker-1/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/OpenSTFoundation/rust-mosaic on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/OpenSTFoundation/rust-mosaic
[INFO] finished tweaking git repo https://github.com/OpenSTFoundation/rust-mosaic
[INFO] tweaked toml for git repo https://github.com/OpenSTFoundation/rust-mosaic written to work/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/OpenSTFoundation/rust-mosaic already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3ac803a5078d93f7351f73d2832821b9703423e866cfbb50342f78a35da17944
[INFO] running `"docker" "start" "-a" "3ac803a5078d93f7351f73d2832821b9703423e866cfbb50342f78a35da17944"`
[INFO] [stderr]    Compiling crunchy v0.1.6
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[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/config/mod.rs:254:19
[INFO] [stderr]     |
[INFO] [stderr] 254 |     let seconds = try!(string.parse::<u64>());
[INFO] [stderr]     |                   ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/config/mod.rs:253:60
[INFO] [stderr]     |
[INFO] [stderr] 253 | fn string_to_seconds(string: &str) -> Result<Duration, 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/observer/mod.rs:27:27
[INFO] [stderr]    |
[INFO] [stderr] 27 |     reactors: Arc<Vec<Box<React>>>,
[INFO] [stderr]    |                           ^^^^^ help: use `dyn`: `dyn React`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/observer/mod.rs:41:27
[INFO] [stderr]    |
[INFO] [stderr] 41 |         reactors: Vec<Box<React>>,
[INFO] [stderr]    |                           ^^^^^ help: use `dyn`: `dyn React`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reactor/mod.rs:54:21
[INFO] [stderr]    |
[INFO] [stderr] 54 | ) -> Result<Vec<Box<React>>, Error> {
[INFO] [stderr]    |                     ^^^^^ help: use `dyn`: `dyn React`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reactor/mod.rs:55:38
[INFO] [stderr]    |
[INFO] [stderr] 55 |     let mut origin_reactors: Vec<Box<React>> = Vec::new();
[INFO] [stderr]    |                                      ^^^^^ help: use `dyn`: `dyn React`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reactor/mod.rs:86:21
[INFO] [stderr]    |
[INFO] [stderr] 86 | ) -> Result<Vec<Box<React>>, Error> {
[INFO] [stderr]    |                     ^^^^^ help: use `dyn`: `dyn React`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reactor/mod.rs:87:41
[INFO] [stderr]    |
[INFO] [stderr] 87 |     let mut auxiliary_reactors: Vec<Box<React>> = Vec::new();
[INFO] [stderr]    |                                         ^^^^^ help: use `dyn`: `dyn React`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:49:47
[INFO] [stderr]    |
[INFO] [stderr] 49 | pub fn run(config: &Config) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> src/lib.rs:80:5
[INFO] [stderr]    |
[INFO] [stderr] 80 |     ;
[INFO] [stderr]    |     ^ help: remove this semicolon
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolon)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/config/mod.rs:254:19
[INFO] [stderr]     |
[INFO] [stderr] 254 |     let seconds = try!(string.parse::<u64>());
[INFO] [stderr]     |                   ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/config/mod.rs:253:60
[INFO] [stderr]     |
[INFO] [stderr] 253 | fn string_to_seconds(string: &str) -> Result<Duration, 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/observer/mod.rs:27:27
[INFO] [stderr]    |
[INFO] [stderr] 27 |     reactors: Arc<Vec<Box<React>>>,
[INFO] [stderr]    |                           ^^^^^ help: use `dyn`: `dyn React`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/observer/mod.rs:41:27
[INFO] [stderr]    |
[INFO] [stderr] 41 |         reactors: Vec<Box<React>>,
[INFO] [stderr]    |                           ^^^^^ help: use `dyn`: `dyn React`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reactor/mod.rs:54:21
[INFO] [stderr]    |
[INFO] [stderr] 54 | ) -> Result<Vec<Box<React>>, Error> {
[INFO] [stderr]    |                     ^^^^^ help: use `dyn`: `dyn React`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reactor/mod.rs:55:38
[INFO] [stderr]    |
[INFO] [stderr] 55 |     let mut origin_reactors: Vec<Box<React>> = Vec::new();
[INFO] [stderr]    |                                      ^^^^^ help: use `dyn`: `dyn React`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reactor/mod.rs:86:21
[INFO] [stderr]    |
[INFO] [stderr] 86 | ) -> Result<Vec<Box<React>>, Error> {
[INFO] [stderr]    |                     ^^^^^ help: use `dyn`: `dyn React`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reactor/mod.rs:87:41
[INFO] [stderr]    |
[INFO] [stderr] 87 |     let mut auxiliary_reactors: Vec<Box<React>> = Vec::new();
[INFO] [stderr]    |                                         ^^^^^ help: use `dyn`: `dyn React`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:49:47
[INFO] [stderr]    |
[INFO] [stderr] 49 | pub fn run(config: &Config) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> src/lib.rs:80:5
[INFO] [stderr]    |
[INFO] [stderr] 80 |     ;
[INFO] [stderr]    |     ^ help: remove this semicolon
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolon)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Signature`
[INFO] [stderr]   --> src/ethereum/types/mod.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub type Signature = H520;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_accounts`
[INFO] [stderr]    --> src/ethereum/mod.rs:165:5
[INFO] [stderr]     |
[INFO] [stderr] 165 |     pub fn get_accounts(&self) -> impl Future<Item = Vec<Address>, Error = Error> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `sign`
[INFO] [stderr]    --> src/ethereum/mod.rs:184:5
[INFO] [stderr]     |
[INFO] [stderr] 184 |     pub fn sign(&self, data: Bytes) -> impl Future<Item = Signature, Error = Error> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/ethereum/types/block.rs:48:9
[INFO] [stderr]    |
[INFO] [stderr] 48 |         write!(fmt, "Block ({:x})", self.hash);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Signature`
[INFO] [stderr]   --> src/ethereum/types/mod.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub type Signature = H520;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_accounts`
[INFO] [stderr]    --> src/ethereum/mod.rs:165:5
[INFO] [stderr]     |
[INFO] [stderr] 165 |     pub fn get_accounts(&self) -> impl Future<Item = Vec<Address>, Error = Error> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `sign`
[INFO] [stderr]    --> src/ethereum/mod.rs:184:5
[INFO] [stderr]     |
[INFO] [stderr] 184 |     pub fn sign(&self, data: Bytes) -> impl Future<Item = Signature, Error = Error> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/ethereum/types/block.rs:48:9
[INFO] [stderr]    |
[INFO] [stderr] 48 |         write!(fmt, "Block ({:x})", self.hash);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 10s
[INFO] running `"docker" "inspect" "3ac803a5078d93f7351f73d2832821b9703423e866cfbb50342f78a35da17944"`
[INFO] running `"docker" "rm" "-f" "3ac803a5078d93f7351f73d2832821b9703423e866cfbb50342f78a35da17944"`
[INFO] [stdout] 3ac803a5078d93f7351f73d2832821b9703423e866cfbb50342f78a35da17944