[INFO] cloning repository https://github.com/guoguojin/rust-example-cli
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/guoguojin/rust-example-cli" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguoguojin%2Frust-example-cli", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguoguojin%2Frust-example-cli'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 84d6f22d39c56f4145d3f52407dae83808be4213
[INFO] testing guoguojin/rust-example-cli against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguoguojin%2Frust-example-cli" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/guoguojin/rust-example-cli on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/guoguojin/rust-example-cli
[INFO] finished tweaking git repo https://github.com/guoguojin/rust-example-cli
[INFO] tweaked toml for git repo https://github.com/guoguojin/rust-example-cli written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/guoguojin/rust-example-cli already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded structopt v0.2.10
[INFO] [stderr]   Downloaded structopt-derive v0.2.10
[INFO] [stderr]   Downloaded serde_json v1.0.22
[INFO] [stderr]   Downloaded serde-hjson v0.8.1
[INFO] [stderr]   Downloaded config v0.9.0
[INFO] [stderr]   Downloaded rust-ini v0.12.2
[INFO] [stderr]   Downloaded yaml-rust v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 941c7f2c7b68f977e3696953a1e3670db51e395400e5cc437092b7dcf670ccc9
[INFO] running `Command { std: "docker" "start" "-a" "941c7f2c7b68f977e3696953a1e3670db51e395400e5cc437092b7dcf670ccc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "941c7f2c7b68f977e3696953a1e3670db51e395400e5cc437092b7dcf670ccc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "941c7f2c7b68f977e3696953a1e3670db51e395400e5cc437092b7dcf670ccc9", kill_on_drop: false }`
[INFO] [stdout] 941c7f2c7b68f977e3696953a1e3670db51e395400e5cc437092b7dcf670ccc9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd8c7d5221e0cee5ec3a3431bc8f51f49fe4bfd0b3da1a714c8f4a6243850e99
[INFO] running `Command { std: "docker" "start" "-a" "bd8c7d5221e0cee5ec3a3431bc8f51f49fe4bfd0b3da1a714c8f4a6243850e99", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v0.8.23
[INFO] [stderr]    Compiling itoa v0.4.2
[INFO] [stderr]    Compiling linked-hash-map v0.5.1
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling rust-ini v0.12.2
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling atty v0.2.10
[INFO] [stderr]    Compiling toml v0.4.6
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling structopt-derive v0.2.10
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling nom v4.0.0
[INFO] [stderr]    Compiling serde_json v1.0.22
[INFO] [stderr]    Compiling yaml-rust v0.4.0
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling serde_test v0.8.23
[INFO] [stderr]    Compiling linked-hash-map v0.3.0
[INFO] [stderr]    Compiling serde-hjson v0.8.1
[INFO] [stderr]    Compiling structopt v0.2.10
[INFO] [stderr]    Compiling config v0.9.0
[INFO] [stderr]    Compiling example-cli-app v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(extern_prelude)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `extern_prelude` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `example-cli-app` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "bd8c7d5221e0cee5ec3a3431bc8f51f49fe4bfd0b3da1a714c8f4a6243850e99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd8c7d5221e0cee5ec3a3431bc8f51f49fe4bfd0b3da1a714c8f4a6243850e99", kill_on_drop: false }`
[INFO] [stdout] bd8c7d5221e0cee5ec3a3431bc8f51f49fe4bfd0b3da1a714c8f4a6243850e99