[INFO] cloning repository https://github.com/exrook/mylisp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/exrook/mylisp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fexrook%2Fmylisp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fexrook%2Fmylisp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 130bcc418632027865303bf953c004af32c2a38f
[INFO] checking exrook/mylisp against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fexrook%2Fmylisp" "/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/exrook/mylisp 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/exrook/mylisp
[INFO] finished tweaking git repo https://github.com/exrook/mylisp
[INFO] tweaked toml for git repo https://github.com/exrook/mylisp written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/exrook/mylisp 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] [stderr] error: the lock file /workspace/builds/worker-10/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-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" "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] d46f948886c04ab28550f280d70f5d7776c62cd38ea5c49ba14ea349c38dcedf
[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" "d46f948886c04ab28550f280d70f5d7776c62cd38ea5c49ba14ea349c38dcedf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d46f948886c04ab28550f280d70f5d7776c62cd38ea5c49ba14ea349c38dcedf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d46f948886c04ab28550f280d70f5d7776c62cd38ea5c49ba14ea349c38dcedf", kill_on_drop: false }`
[INFO] [stdout] d46f948886c04ab28550f280d70f5d7776c62cd38ea5c49ba14ea349c38dcedf
[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=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] [stdout] 2fe334e6188ae3c2a84f80b29f5aa4125e50803ee53761125db1767aba9d5113
[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" "2fe334e6188ae3c2a84f80b29f5aa4125e50803ee53761125db1767aba9d5113", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-segmentation v0.1.3
[INFO] [stderr]     Checking mylisp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/eval/builtin/mod.rs:15:15
[INFO] [stdout]    |
[INFO] [stdout] 15 |     func: Box<Fn(LinkedList<ListElement>) -> ListElement>
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(LinkedList<ListElement>) -> ListElement`
[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/builtin/mod.rs:19:19
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn new(f: Box<Fn(LinkedList<ListElement>) -> ListElement>) -> Builtin {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(LinkedList<ListElement>) -> ListElement`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/eval/builtin/mod.rs:22:46
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn get_func(builtin: Builtin) -> Box<Fn(LinkedList<ListElement>) -> ListElement> {
[INFO] [stdout]    |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(LinkedList<ListElement>) -> ListElement`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]  --> src/eval/builtin/defn.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn defn(l: LinkedList<ListElement>) -> ListElement {
[INFO] [stdout]   |             ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Function`
[INFO] [stdout]   --> src/parse.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Function(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Variable`
[INFO] [stdout]   --> src/parse.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Variable(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `defn`
[INFO] [stdout]  --> src/eval/builtin/defn.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn defn(l: LinkedList<ListElement>) -> ListElement {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/eval/builtin/mod.rs:15:15
[INFO] [stdout]    |
[INFO] [stdout] 15 |     func: Box<Fn(LinkedList<ListElement>) -> ListElement>
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(LinkedList<ListElement>) -> ListElement`
[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/builtin/mod.rs:19:19
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn new(f: Box<Fn(LinkedList<ListElement>) -> ListElement>) -> Builtin {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(LinkedList<ListElement>) -> ListElement`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/eval/builtin/mod.rs:22:46
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn get_func(builtin: Builtin) -> Box<Fn(LinkedList<ListElement>) -> ListElement> {
[INFO] [stdout]    |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(LinkedList<ListElement>) -> ListElement`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]  --> src/eval/builtin/defn.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn defn(l: LinkedList<ListElement>) -> ListElement {
[INFO] [stdout]   |             ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Function`
[INFO] [stdout]   --> src/parse.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Function(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Variable`
[INFO] [stdout]   --> src/parse.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Variable(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `defn`
[INFO] [stdout]  --> src/eval/builtin/defn.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn defn(l: LinkedList<ListElement>) -> ListElement {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.28s
[INFO] running `Command { std: "docker" "inspect" "2fe334e6188ae3c2a84f80b29f5aa4125e50803ee53761125db1767aba9d5113", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fe334e6188ae3c2a84f80b29f5aa4125e50803ee53761125db1767aba9d5113", kill_on_drop: false }`
[INFO] [stdout] 2fe334e6188ae3c2a84f80b29f5aa4125e50803ee53761125db1767aba9d5113