[INFO] cloning repository https://github.com/RCasatta/hashchain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RCasatta/hashchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRCasatta%2Fhashchain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRCasatta%2Fhashchain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7d50099e2de291691d19bd0e1b1d4b5314edcb57
[INFO] testing RCasatta/hashchain against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRCasatta%2Fhashchain" "/workspace/builds/worker-23/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-23/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RCasatta/hashchain on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/RCasatta/hashchain
[INFO] finished tweaking git repo https://github.com/RCasatta/hashchain
[INFO] tweaked toml for git repo https://github.com/RCasatta/hashchain written to /workspace/builds/worker-23/source/Cargo.toml
[INFO] crate git repo https://github.com/RCasatta/hashchain already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 66b2c5f943aedc279fd226a32d79d8107daaeca9ce78aaa3c923e66075f1bc68
[INFO] running `Command { std: "docker" "start" "-a" "66b2c5f943aedc279fd226a32d79d8107daaeca9ce78aaa3c923e66075f1bc68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66b2c5f943aedc279fd226a32d79d8107daaeca9ce78aaa3c923e66075f1bc68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66b2c5f943aedc279fd226a32d79d8107daaeca9ce78aaa3c923e66075f1bc68", kill_on_drop: false }`
[INFO] [stdout] 66b2c5f943aedc279fd226a32d79d8107daaeca9ce78aaa3c923e66075f1bc68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d82c370447d4413df7ec3268c542f23e427094e358f536cccaafe2a27c5f8130
[INFO] running `Command { std: "docker" "start" "-a" "d82c370447d4413df7ec3268c542f23e427094e358f536cccaafe2a27c5f8130", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.32
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]    Compiling time v0.1.38
[INFO] [stderr]    Compiling rand v0.3.17
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling hashchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.27s
[INFO] running `Command { std: "docker" "inspect" "d82c370447d4413df7ec3268c542f23e427094e358f536cccaafe2a27c5f8130", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d82c370447d4413df7ec3268c542f23e427094e358f536cccaafe2a27c5f8130", kill_on_drop: false }`
[INFO] [stdout] d82c370447d4413df7ec3268c542f23e427094e358f536cccaafe2a27c5f8130
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b6ea9d7647339ad28d19e5c7823db33ddc7b1f77d54545e83dfc8a149f19ed8
[INFO] running `Command { std: "docker" "start" "-a" "0b6ea9d7647339ad28d19e5c7823db33ddc7b1f77d54545e83dfc8a149f19ed8", kill_on_drop: false }`
[INFO] [stderr]    Compiling hashchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0061]: this function takes 1 argument but 0 arguments were supplied
[INFO] [stdout]   --> src/main.rs:74:38
[INFO] [stdout]    |
[INFO] [stdout] 74 |         assert_eq!(HexSlice::new(sha.result()), "c0535e4be2b79ffd93291305436bf889314e4a3faec05ecffcbb7df31ad9e51a");
[INFO] [stdout]    |                                      ^^^^^^- supplied 0 arguments
[INFO] [stdout]    |                                      |
[INFO] [stdout]    |                                      expected 1 argument
[INFO] [stdout]    |
[INFO] [stdout] note: associated function defined here
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rust-crypto-0.2.36/src/digest.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn result(&mut self, out: &mut [u8]);
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:74:34
[INFO] [stdout]    |
[INFO] [stdout] 74 |         assert_eq!(HexSlice::new(sha.result()), "c0535e4be2b79ffd93291305436bf889314e4a3faec05ecffcbb7df31ad9e51a");
[INFO] [stdout]    |                                  ^^^^^^^^^^^^
[INFO] [stdout]    |                                  |
[INFO] [stdout]    |                                  expected reference, found `()`
[INFO] [stdout]    |                                  help: consider borrowing here: `&sha.result()`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected reference `&_`
[INFO] [stdout]               found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0369]: binary operation `==` cannot be applied to type `HexSlice<'_>`
[INFO] [stdout]   --> src/main.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |         assert_eq!(HexSlice::new(sha.result()), "c0535e4be2b79ffd93291305436bf889314e4a3faec05ecffcbb7df31ad9e51a");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         HexSlice<'_>
[INFO] [stdout]    |         &str
[INFO] [stdout]    |
[INFO] [stdout]    = note: an implementation of `std::cmp::PartialEq` might be missing for `HexSlice<'_>`
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `HexSlice<'_>` doesn't implement `Debug`
[INFO] [stdout]   --> src/main.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |         assert_eq!(HexSlice::new(sha.result()), "c0535e4be2b79ffd93291305436bf889314e4a3faec05ecffcbb7df31ad9e51a");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `HexSlice<'_>` cannot be formatted using `{:?}`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Debug` is not implemented for `HexSlice<'_>`
[INFO] [stdout]    = note: add `#[derive(Debug)]` to `HexSlice<'_>` or manually `impl Debug for HexSlice<'_>`
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0061, E0277, E0308, E0369.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0061`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hashchain` due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "0b6ea9d7647339ad28d19e5c7823db33ddc7b1f77d54545e83dfc8a149f19ed8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b6ea9d7647339ad28d19e5c7823db33ddc7b1f77d54545e83dfc8a149f19ed8", kill_on_drop: false }`
[INFO] [stdout] 0b6ea9d7647339ad28d19e5c7823db33ddc7b1f77d54545e83dfc8a149f19ed8