[INFO] cloning repository https://github.com/WilsonBerkow/scheme.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/WilsonBerkow/scheme.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWilsonBerkow%2Fscheme.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWilsonBerkow%2Fscheme.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3fc7ee83008115edd0adced0bb42b035ce8e855d
[INFO] checking WilsonBerkow/scheme.rs against master#0d37dca25a51fb900a402c94c8818ad1c2789e30 for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWilsonBerkow%2Fscheme.rs" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/WilsonBerkow/scheme.rs on toolchain 0d37dca25a51fb900a402c94c8818ad1c2789e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/WilsonBerkow/scheme.rs
[INFO] finished tweaking git repo https://github.com/WilsonBerkow/scheme.rs
[INFO] tweaked toml for git repo https://github.com/WilsonBerkow/scheme.rs written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/WilsonBerkow/scheme.rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "metadata" "--no-deps" "--format-version=1", 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] 6565e0860649ffa746380bce73ada952a7a8b40d780b4fe81f814f7c336444c4
[INFO] running `Command { std: "docker" "start" "-a" "6565e0860649ffa746380bce73ada952a7a8b40d780b4fe81f814f7c336444c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6565e0860649ffa746380bce73ada952a7a8b40d780b4fe81f814f7c336444c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6565e0860649ffa746380bce73ada952a7a8b40d780b4fe81f814f7c336444c4", kill_on_drop: false }`
[INFO] [stdout] 6565e0860649ffa746380bce73ada952a7a8b40d780b4fe81f814f7c336444c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9f9a403e479c07a23819f9135bcdfa9f91c9a1712081baa3b999e4697cd54a6
[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" "f9f9a403e479c07a23819f9135bcdfa9f91c9a1712081baa3b999e4697cd54a6", kill_on_drop: false }`
[INFO] [stderr]     Checking scheme v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/eval.rs:111:14
[INFO] [stdout]     |
[INFO] [stdout] 111 | type BinOp = Fn(SValue, SValue) -> Result<SValue, String>;
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(SValue, SValue) -> Result<SValue, String>`
[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/eval.rs:111:14
[INFO] [stdout]     |
[INFO] [stdout] 111 | type BinOp = Fn(SValue, SValue) -> Result<SValue, String>;
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(SValue, SValue) -> Result<SValue, String>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "f9f9a403e479c07a23819f9135bcdfa9f91c9a1712081baa3b999e4697cd54a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9f9a403e479c07a23819f9135bcdfa9f91c9a1712081baa3b999e4697cd54a6", kill_on_drop: false }`
[INFO] [stdout] f9f9a403e479c07a23819f9135bcdfa9f91c9a1712081baa3b999e4697cd54a6