[INFO] cloning repository https://github.com/desttinghim/flapjack-lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/desttinghim/flapjack-lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdesttinghim%2Fflapjack-lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdesttinghim%2Fflapjack-lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 94b18644f7cd2f58edd6ccdd93b3731a4eaf6b27
[INFO] checking desttinghim/flapjack-lang against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdesttinghim%2Fflapjack-lang" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/desttinghim/flapjack-lang on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/desttinghim/flapjack-lang
[INFO] finished tweaking git repo https://github.com/desttinghim/flapjack-lang
[INFO] tweaked toml for git repo https://github.com/desttinghim/flapjack-lang written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/desttinghim/flapjack-lang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be32357f812bd86ae7c5fc376b862157cffb4994533f05722ca36b9db8459b0c
[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" "be32357f812bd86ae7c5fc376b862157cffb4994533f05722ca36b9db8459b0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be32357f812bd86ae7c5fc376b862157cffb4994533f05722ca36b9db8459b0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be32357f812bd86ae7c5fc376b862157cffb4994533f05722ca36b9db8459b0c", kill_on_drop: false }`
[INFO] [stdout] be32357f812bd86ae7c5fc376b862157cffb4994533f05722ca36b9db8459b0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4a72571f29d202d863383e97e8c7e9eb92a62d4cecc605a5266e92af42ad1934
[INFO] running `Command { std: "docker" "start" "-a" "4a72571f29d202d863383e97e8c7e9eb92a62d4cecc605a5266e92af42ad1934", kill_on_drop: false }`
[INFO] [stderr]     Checking flapjack v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/vm.rs:48:23
[INFO] [stdout]    |
[INFO] [stdout] 48 |     native_code:    Vec<&'a Fn(&mut Vec<u32>)->()>,
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Vec<u32>)->()`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/vm.rs:64:41
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn add_native(&mut self, func: &'a Fn(&mut Vec<u32>)->())->u32 {
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Vec<u32>)->()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/vm.rs:48:23
[INFO] [stdout]    |
[INFO] [stdout] 48 |     native_code:    Vec<&'a Fn(&mut Vec<u32>)->()>,
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Vec<u32>)->()`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/vm.rs:64:41
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn add_native(&mut self, func: &'a Fn(&mut Vec<u32>)->())->u32 {
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Vec<u32>)->()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `Command { std: "docker" "inspect" "4a72571f29d202d863383e97e8c7e9eb92a62d4cecc605a5266e92af42ad1934", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a72571f29d202d863383e97e8c7e9eb92a62d4cecc605a5266e92af42ad1934", kill_on_drop: false }`
[INFO] [stdout] 4a72571f29d202d863383e97e8c7e9eb92a62d4cecc605a5266e92af42ad1934