[INFO] cloning repository https://github.com/cpcloud/scrust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cpcloud/scrust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcpcloud%2Fscrust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcpcloud%2Fscrust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 85bb6b324bb2997d48f9aec0bf0e6ac5e86fc56e
[INFO] testing cpcloud/scrust against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcpcloud%2Fscrust" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cpcloud/scrust on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cpcloud/scrust
[INFO] finished tweaking git repo https://github.com/cpcloud/scrust
[INFO] tweaked toml for git repo https://github.com/cpcloud/scrust written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/cpcloud/scrust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c3a4bd51550cbf1989a3c1f5ed7b5166799a3bd5c81d8d605926f7a30e7b5e07
[INFO] running `Command { std: "docker" "start" "-a" "c3a4bd51550cbf1989a3c1f5ed7b5166799a3bd5c81d8d605926f7a30e7b5e07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3a4bd51550cbf1989a3c1f5ed7b5166799a3bd5c81d8d605926f7a30e7b5e07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3a4bd51550cbf1989a3c1f5ed7b5166799a3bd5c81d8d605926f7a30e7b5e07", kill_on_drop: false }`
[INFO] [stdout] c3a4bd51550cbf1989a3c1f5ed7b5166799a3bd5c81d8d605926f7a30e7b5e07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6577d948b2bce33131add83577027883e9bbf3859d293b95079c87e16aa799c8
[INFO] running `Command { std: "docker" "start" "-a" "6577d948b2bce33131add83577027883e9bbf3859d293b95079c87e16aa799c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling maplit v1.0.1
[INFO] [stderr]    Compiling scrust 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(box_syntax, fn_traits, unboxed_closures, box_patterns)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/main.rs:253:1
[INFO] [stdout]     |
[INFO] [stdout] 253 | / macro_rules! int {
[INFO] [stdout] 254 | |     [$value:expr] => {
[INFO] [stdout] 255 | |         Value::Integer($value)
[INFO] [stdout] 256 | |     }
[INFO] [stdout] 257 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/main.rs:259:1
[INFO] [stdout]     |
[INFO] [stdout] 259 | / macro_rules! sym {
[INFO] [stdout] 260 | |     [$value:expr] => {
[INFO] [stdout] 261 | |         Value::Symbol($value.to_string())
[INFO] [stdout] 262 | |     }
[INFO] [stdout] 263 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/main.rs:265:1
[INFO] [stdout]     |
[INFO] [stdout] 265 | / macro_rules! list {
[INFO] [stdout] 266 | |     [$($value:expr),*] => { List::from_vec(vec![$($value,)*]).as_value() }
[INFO] [stdout] 267 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/main.rs:269:1
[INFO] [stdout]     |
[INFO] [stdout] 269 | / macro_rules! spec {
[INFO] [stdout] 270 | |     [$value:ident] => { Value::SpecialForm(SpecialForm::$value) }
[INFO] [stdout] 271 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/main.rs:273:1
[INFO] [stdout]     |
[INFO] [stdout] 273 | / macro_rules! bool_ {
[INFO] [stdout] 274 | |     [$value:expr] => { Value::Boolean($value) }
[INFO] [stdout] 275 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `scrust`
[INFO] [stdout] error: aborting due to previous error; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "6577d948b2bce33131add83577027883e9bbf3859d293b95079c87e16aa799c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6577d948b2bce33131add83577027883e9bbf3859d293b95079c87e16aa799c8", kill_on_drop: false }`
[INFO] [stdout] 6577d948b2bce33131add83577027883e9bbf3859d293b95079c87e16aa799c8
