[INFO] updating cached repository https://github.com/cpcloud/scrust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 85bb6b324bb2997d48f9aec0bf0e6ac5e86fc56e
[INFO] testing cpcloud/scrust against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcpcloud%2Fscrust" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cpcloud/scrust on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", 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-9/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" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 905d4bd4a9a7959dde198c2c8fddec02af9aca90189c00fc43827185862d8033
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "905d4bd4a9a7959dde198c2c8fddec02af9aca90189c00fc43827185862d8033", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "905d4bd4a9a7959dde198c2c8fddec02af9aca90189c00fc43827185862d8033", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "905d4bd4a9a7959dde198c2c8fddec02af9aca90189c00fc43827185862d8033", kill_on_drop: false }`
[INFO] [stdout] 905d4bd4a9a7959dde198c2c8fddec02af9aca90189c00fc43827185862d8033
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 649b2c2b6e43e8567873f842ee18ea8d8e94366bf40a3c97582f0d768295650e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "649b2c2b6e43e8567873f842ee18ea8d8e94366bf40a3c97582f0d768295650e", kill_on_drop: false }`
[INFO] [stderr]    Compiling scrust v0.1.0 (/opt/rustwide/workdir)
[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] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> src/main.rs:302:20
[INFO] [stdout]     |
[INFO] [stdout] 302 | fn evaluate_define(expr: Value, args: List, env: &mut Environment) -> Value {
[INFO] [stdout]     |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 56 |         for i in 0..n {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of `*env` which is behind a mutable reference
[INFO] [stdout]    --> src/main.rs:317:18
[INFO] [stdout]     |
[INFO] [stdout] 317 |             env: env.new_child(),
[INFO] [stdout]     |                  ^^^ move occurs because `*env` has type `Environment`, which does not implement the `Copy` trait
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0505]: cannot move out of `*env` because it is borrowed
[INFO] [stdout]    --> src/main.rs:317:18
[INFO] [stdout]     |
[INFO] [stdout] 312 |     env.define(
[INFO] [stdout]     |     --- ------ borrow later used by call
[INFO] [stdout]     |     |
[INFO] [stdout]     |     borrow of `*env` occurs here
[INFO] [stdout] ...
[INFO] [stdout] 317 |             env: env.new_child(),
[INFO] [stdout]     |                  ^^^ move out of `*env` occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of a shared reference
[INFO] [stdout]    --> src/main.rs:326:32
[INFO] [stdout]     |
[INFO] [stdout] 326 |         Value::Symbol(name) => *env.clone().retrieve(name),
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^ move occurs because value has type `Value`, which does not implement the `Copy` trait
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0505, E0507.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0505`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `scrust`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "649b2c2b6e43e8567873f842ee18ea8d8e94366bf40a3c97582f0d768295650e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "649b2c2b6e43e8567873f842ee18ea8d8e94366bf40a3c97582f0d768295650e", kill_on_drop: false }`
[INFO] [stdout] 649b2c2b6e43e8567873f842ee18ea8d8e94366bf40a3c97582f0d768295650e