[INFO] cloning repository https://github.com/jaemk/randhex
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jaemk/randhex" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjaemk%2Frandhex", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjaemk%2Frandhex'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ef75f91ec9ceed2eebe2f9bfbb90a2f3f862d3de
[INFO] testing jaemk/randhex against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjaemk%2Frandhex" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jaemk/randhex 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/jaemk/randhex
[INFO] finished tweaking git repo https://github.com/jaemk/randhex
[INFO] tweaked toml for git repo https://github.com/jaemk/randhex written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/jaemk/randhex 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 65ca9182c8d7207b65c7eef5b555a8ee4620e949bdab3c2772c29cf962117705
[INFO] running `Command { std: "docker" "start" "-a" "65ca9182c8d7207b65c7eef5b555a8ee4620e949bdab3c2772c29cf962117705", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65ca9182c8d7207b65c7eef5b555a8ee4620e949bdab3c2772c29cf962117705", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65ca9182c8d7207b65c7eef5b555a8ee4620e949bdab3c2772c29cf962117705", kill_on_drop: false }`
[INFO] [stdout] 65ca9182c8d7207b65c7eef5b555a8ee4620e949bdab3c2772c29cf962117705
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 09ce3652b5a06a31d520d08bb102c1c11eba9c4c06a3917e40a86cbd8c5dade4
[INFO] running `Command { std: "docker" "start" "-a" "09ce3652b5a06a31d520d08bb102c1c11eba9c4c06a3917e40a86cbd8c5dade4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.32
[INFO] [stderr]    Compiling either v1.3.0
[INFO] [stderr]    Compiling cc v1.0.1
[INFO] [stderr]    Compiling lazy_static v0.2.9
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]    Compiling rustc-demangle v0.1.5
[INFO] [stderr]    Compiling untrusted v0.5.1
[INFO] [stderr]    Compiling data-encoding v1.2.0
[INFO] [stderr]    Compiling coco v0.1.1
[INFO] [stderr]    Compiling num_cpus v1.7.0
[INFO] [stderr]    Compiling rand v0.3.17
[INFO] [stderr]    Compiling term_size v0.3.0
[INFO] [stderr]    Compiling atty v0.2.3
[INFO] [stderr]    Compiling textwrap v0.8.0
[INFO] [stderr]    Compiling clap v2.26.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling rayon-core v1.2.1
[INFO] [stderr]    Compiling rayon v0.8.2
[INFO] [stderr]    Compiling ring v0.12.1
[INFO] [stderr]    Compiling backtrace v0.3.3
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling randhex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | / error_chain! {
[INFO] [stdout] 14 | |     foreign_links {
[INFO] [stdout] 15 | |         Ring(ring::error::Unspecified);
[INFO] [stdout] 16 | |     }
[INFO] [stdout] 17 | |     errors {}
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/main.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | / error_chain! {
[INFO] [stdout] 14 | |     foreign_links {
[INFO] [stdout] 15 | |         Ring(ring::error::Unspecified);
[INFO] [stdout] 16 | |     }
[INFO] [stdout] 17 | |     errors {}
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.60s
[INFO] running `Command { std: "docker" "inspect" "09ce3652b5a06a31d520d08bb102c1c11eba9c4c06a3917e40a86cbd8c5dade4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09ce3652b5a06a31d520d08bb102c1c11eba9c4c06a3917e40a86cbd8c5dade4", kill_on_drop: false }`
[INFO] [stdout] 09ce3652b5a06a31d520d08bb102c1c11eba9c4c06a3917e40a86cbd8c5dade4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 8c0f29c886e72a252de389f6180f519386356cb115024e72c3a7bf9b78ff8ff3
[INFO] running `Command { std: "docker" "start" "-a" "8c0f29c886e72a252de389f6180f519386356cb115024e72c3a7bf9b78ff8ff3", kill_on_drop: false }`
[INFO] [stderr]    Compiling randhex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | / error_chain! {
[INFO] [stdout] 14 | |     foreign_links {
[INFO] [stdout] 15 | |         Ring(ring::error::Unspecified);
[INFO] [stdout] 16 | |     }
[INFO] [stdout] 17 | |     errors {}
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/main.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | / error_chain! {
[INFO] [stdout] 14 | |     foreign_links {
[INFO] [stdout] 15 | |         Ring(ring::error::Unspecified);
[INFO] [stdout] 16 | |     }
[INFO] [stdout] 17 | |     errors {}
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "8c0f29c886e72a252de389f6180f519386356cb115024e72c3a7bf9b78ff8ff3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c0f29c886e72a252de389f6180f519386356cb115024e72c3a7bf9b78ff8ff3", kill_on_drop: false }`
[INFO] [stdout] 8c0f29c886e72a252de389f6180f519386356cb115024e72c3a7bf9b78ff8ff3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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", kill_on_drop: false }`
[INFO] [stdout] 0c9c78a0855b8ec931372b20bc78f40fda0c96d11eb8418e4f716824e1cb6420
[INFO] running `Command { std: "docker" "start" "-a" "0c9c78a0855b8ec931372b20bc78f40fda0c96d11eb8418e4f716824e1cb6420", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/main.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | / error_chain! {
[INFO] [stderr] 14 | |     foreign_links {
[INFO] [stderr] 15 | |         Ring(ring::error::Unspecified);
[INFO] [stderr] 16 | |     }
[INFO] [stderr] 17 | |     errors {}
[INFO] [stderr] 18 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in the macro `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | / error_chain! {
[INFO] [stderr] 14 | |     foreign_links {
[INFO] [stderr] 15 | |         Ring(ring::error::Unspecified);
[INFO] [stderr] 16 | |     }
[INFO] [stderr] 17 | |     errors {}
[INFO] [stderr] 18 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `randhex` (bin "randhex" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/randhex-52ff93c1a9c43977)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0c9c78a0855b8ec931372b20bc78f40fda0c96d11eb8418e4f716824e1cb6420", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c9c78a0855b8ec931372b20bc78f40fda0c96d11eb8418e4f716824e1cb6420", kill_on_drop: false }`
[INFO] [stdout] 0c9c78a0855b8ec931372b20bc78f40fda0c96d11eb8418e4f716824e1cb6420