[INFO] updating cached repository nkypy/hello-word
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nkypy/hello-word
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nkypy/hello-word" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/nkypy/hello-word"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/nkypy/hello-word'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nkypy/hello-word" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/nkypy/hello-word"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/nkypy/hello-word'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7d7dc86507830db91546b251acf325e68a4bf6d0
[INFO] sha for GitHub repo nkypy/hello-word: 7d7dc86507830db91546b251acf325e68a4bf6d0
[INFO] validating manifest of nkypy/hello-word on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of nkypy/hello-word on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing nkypy/hello-word
[INFO] finished frobbing nkypy/hello-word
[INFO] frobbed toml for nkypy/hello-word written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/nkypy/hello-word/Cargo.toml
[INFO] started frobbing nkypy/hello-word
[INFO] finished frobbing nkypy/hello-word
[INFO] frobbed toml for nkypy/hello-word written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/nkypy/hello-word/Cargo.toml
[INFO] crate nkypy/hello-word has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing nkypy/hello-word against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/nkypy/hello-word:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] 043b0b2d36c12703b8d93277c1cbf37714fa15a2d74aded2e88c0a66708e8346
[INFO] running `"docker" "start" "-a" "043b0b2d36c12703b8d93277c1cbf37714fa15a2d74aded2e88c0a66708e8346"`
[INFO] [stderr]    Compiling hostname v0.1.4
[INFO] [stderr]    Compiling actix-web v0.6.2
[INFO] [stderr]    Compiling semver v0.8.0
[INFO] [stderr]    Compiling uuid v0.6.2
[INFO] [stderr]    Compiling mio v0.6.14
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling miniz-sys v0.1.10
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]    Compiling tokio-io v0.1.6
[INFO] [stderr]    Compiling parking_lot v0.4.8
[INFO] [stderr]    Compiling actix_derive v0.2.0
[INFO] [stderr]    Compiling backtrace v0.3.5
[INFO] [stderr]    Compiling flate2 v1.0.1
[INFO] [stderr]    Compiling brotli2 v0.3.2
[INFO] [stderr]    Compiling serde_derive_internals v0.23.0
[INFO] [stderr]    Compiling tokio-threadpool v0.1.2
[INFO] [stderr]    Compiling backtrace v0.2.3
[INFO] [stderr]    Compiling chrono v0.4.0
[INFO] [stderr]    Compiling resolv-conf v0.6.0
[INFO] [stderr]    Compiling serde_urlencoded v0.5.1
[INFO] [stderr]    Compiling crossbeam-channel v0.1.2
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling rayon v0.8.2
[INFO] [stderr]    Compiling h2 v0.1.5
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stderr]    Compiling tokio-reactor v0.1.1
[INFO] [stderr]    Compiling mio-uds v0.6.4
[INFO] [stderr]    Compiling error-chain v0.1.12
[INFO] [stderr]    Compiling serde_derive v1.0.37
[INFO] [stderr]    Compiling tokio-tcp v0.1.0
[INFO] [stderr]    Compiling tokio-udp v0.1.0
[INFO] [stderr]    Compiling tokio v0.1.5
[INFO] [stderr]    Compiling ring v0.12.1
[INFO] [stderr]    Compiling tokio-core v0.1.17
[INFO] [stderr]    Compiling trust-dns-proto v0.3.2
[INFO] [stderr]    Compiling tokio-signal v0.1.5
[INFO] [stderr]    Compiling cargo_metadata v0.3.3
[INFO] [stderr]    Compiling cookie v0.10.1
[INFO] [stderr]    Compiling skeptic v0.13.2
[INFO] [stderr]    Compiling trust-dns-resolver v0.8.1
[INFO] [stderr]    Compiling actix v0.5.5
[INFO] [stderr]    Compiling hello-world v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/main.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/main.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> src/blockchain/mod.rs:42:29
[INFO] [stderr]    |
[INFO] [stderr] 42 |     pub fn find_transaction(id: String) -> Result<Transaction, &'static str> {
[INFO] [stderr]    |                             ^^ help: consider prefixing with an underscore: `_id`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/blockchain/block.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn new(b: Block) -> ProofOfWork {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `verify`
[INFO] [stderr]   --> src/blockchain/block.rs:76:5
[INFO] [stderr]    |
[INFO] [stderr] 76 |     pub fn verify() -> Result<&'static str, &'static str> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `verify`
[INFO] [stderr]   --> src/blockchain/transaction.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     pub fn verify() -> Result<&'static str, &'static str> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/blockchain/wallet.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub fn new() -> Wallet {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `NOT_FOUND`
[INFO] [stderr]   --> src/rpc/model/error.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | / pub const NOT_FOUND: Error = Error {
[INFO] [stderr] 24 | |     error_code: 100404,
[INFO] [stderr] 25 | |     error_message: "Not Found",
[INFO] [stderr] 26 | | };
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `INTERNAL_SERVER_ERROR`
[INFO] [stderr]   --> src/rpc/model/error.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | / pub const INTERNAL_SERVER_ERROR: Error = Error {
[INFO] [stderr] 29 | |     error_code: 100500,
[INFO] [stderr] 30 | |     error_message: "Internal Server Error",
[INFO] [stderr] 31 | | };
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `extern_prelude` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(extern_prelude)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 22s
[INFO] running `"docker" "inspect" "043b0b2d36c12703b8d93277c1cbf37714fa15a2d74aded2e88c0a66708e8346"`
[INFO] running `"docker" "rm" "-f" "043b0b2d36c12703b8d93277c1cbf37714fa15a2d74aded2e88c0a66708e8346"`
[INFO] [stdout] 043b0b2d36c12703b8d93277c1cbf37714fa15a2d74aded2e88c0a66708e8346
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/nkypy/hello-word:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 37a7b30ebac2aca1d930666b5184dcb1b7db7d43410e2eeb5c27249256736c9e
[INFO] running `"docker" "start" "-a" "37a7b30ebac2aca1d930666b5184dcb1b7db7d43410e2eeb5c27249256736c9e"`
[INFO] [stderr]    Compiling hello-world v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/main.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/main.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> src/blockchain/mod.rs:42:29
[INFO] [stderr]    |
[INFO] [stderr] 42 |     pub fn find_transaction(id: String) -> Result<Transaction, &'static str> {
[INFO] [stderr]    |                             ^^ help: consider prefixing with an underscore: `_id`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/blockchain/block.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn new(b: Block) -> ProofOfWork {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `verify`
[INFO] [stderr]   --> src/blockchain/block.rs:76:5
[INFO] [stderr]    |
[INFO] [stderr] 76 |     pub fn verify() -> Result<&'static str, &'static str> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `verify`
[INFO] [stderr]   --> src/blockchain/transaction.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     pub fn verify() -> Result<&'static str, &'static str> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/blockchain/wallet.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub fn new() -> Wallet {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `NOT_FOUND`
[INFO] [stderr]   --> src/rpc/model/error.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | / pub const NOT_FOUND: Error = Error {
[INFO] [stderr] 24 | |     error_code: 100404,
[INFO] [stderr] 25 | |     error_message: "Not Found",
[INFO] [stderr] 26 | | };
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `INTERNAL_SERVER_ERROR`
[INFO] [stderr]   --> src/rpc/model/error.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | / pub const INTERNAL_SERVER_ERROR: Error = Error {
[INFO] [stderr] 29 | |     error_code: 100500,
[INFO] [stderr] 30 | |     error_message: "Internal Server Error",
[INFO] [stderr] 31 | | };
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `extern_prelude` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(extern_prelude)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.06s
[INFO] running `"docker" "inspect" "37a7b30ebac2aca1d930666b5184dcb1b7db7d43410e2eeb5c27249256736c9e"`
[INFO] running `"docker" "rm" "-f" "37a7b30ebac2aca1d930666b5184dcb1b7db7d43410e2eeb5c27249256736c9e"`
[INFO] [stdout] 37a7b30ebac2aca1d930666b5184dcb1b7db7d43410e2eeb5c27249256736c9e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/nkypy/hello-word:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen"`
[INFO] [stdout] 23a7d50cbb3dee93fece9ffd87f287c31479a074b0bd4b74c07e2b2622e887e2
[INFO] running `"docker" "start" "-a" "23a7d50cbb3dee93fece9ffd87f287c31479a074b0bd4b74c07e2b2622e887e2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hello_world-b6d52a83ef5c8e32
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "23a7d50cbb3dee93fece9ffd87f287c31479a074b0bd4b74c07e2b2622e887e2"`
[INFO] running `"docker" "rm" "-f" "23a7d50cbb3dee93fece9ffd87f287c31479a074b0bd4b74c07e2b2622e887e2"`
[INFO] [stdout] 23a7d50cbb3dee93fece9ffd87f287c31479a074b0bd4b74c07e2b2622e887e2