[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] testing exrook/mylisp against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fexrook%2Fmylisp" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/exrook/mylisp on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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-11/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" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /workspace/builds/worker-11/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[INFO] the lockfile is outdated, regenerating it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" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b38bf44464478c7b82160aa563855a3f65d30d1a43ed7084e9997f60663411a3
[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" "b38bf44464478c7b82160aa563855a3f65d30d1a43ed7084e9997f60663411a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b38bf44464478c7b82160aa563855a3f65d30d1a43ed7084e9997f60663411a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b38bf44464478c7b82160aa563855a3f65d30d1a43ed7084e9997f60663411a3", kill_on_drop: false }`
[INFO] [stdout] b38bf44464478c7b82160aa563855a3f65d30d1a43ed7084e9997f60663411a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--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] 88d6125251b31c4de98bb831894d60ff03f43579c9753f772e8d2487e62c1b0e
[INFO] running `Command { std: "docker" "start" "-a" "88d6125251b31c4de98bb831894d60ff03f43579c9753f772e8d2487e62c1b0e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling 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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.95s
[INFO] running `Command { std: "docker" "inspect" "88d6125251b31c4de98bb831894d60ff03f43579c9753f772e8d2487e62c1b0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88d6125251b31c4de98bb831894d60ff03f43579c9753f772e8d2487e62c1b0e", kill_on_drop: false }`
[INFO] [stdout] 88d6125251b31c4de98bb831894d60ff03f43579c9753f772e8d2487e62c1b0e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--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] a5ee3ac97837774d774608e68cdd0eb19aea14b9922f4c41f14722a56c561c6c
[INFO] running `Command { std: "docker" "start" "-a" "a5ee3ac97837774d774608e68cdd0eb19aea14b9922f4c41f14722a56c561c6c", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "a5ee3ac97837774d774608e68cdd0eb19aea14b9922f4c41f14722a56c561c6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5ee3ac97837774d774608e68cdd0eb19aea14b9922f4c41f14722a56c561c6c", kill_on_drop: false }`
[INFO] [stdout] a5ee3ac97837774d774608e68cdd0eb19aea14b9922f4c41f14722a56c561c6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7342fa47f9be486d887507bfa79e58160bb328877511ae739f5ee37fe5ab9d93
[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" "7342fa47f9be486d887507bfa79e58160bb328877511ae739f5ee37fe5ab9d93", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/eval/builtin/mod.rs:15:15
[INFO] [stderr]    |
[INFO] [stderr] 15 |     func: Box<Fn(LinkedList<ListElement>) -> ListElement>
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(LinkedList<ListElement>) -> ListElement`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/eval/builtin/mod.rs:19:19
[INFO] [stderr]    |
[INFO] [stderr] 19 |     fn new(f: Box<Fn(LinkedList<ListElement>) -> ListElement>) -> Builtin {
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(LinkedList<ListElement>) -> ListElement`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/eval/builtin/mod.rs:22:46
[INFO] [stderr]    |
[INFO] [stderr] 22 |     pub fn get_func(builtin: Builtin) -> Box<Fn(LinkedList<ListElement>) -> ListElement> {
[INFO] [stderr]    |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(LinkedList<ListElement>) -> ListElement`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `l`
[INFO] [stderr]  --> src/eval/builtin/defn.rs:4:13
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn defn(l: LinkedList<ListElement>) -> ListElement {
[INFO] [stderr]   |             ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Function`
[INFO] [stderr]   --> src/parse.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     Function(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Variable`
[INFO] [stderr]   --> src/parse.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Variable(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `defn`
[INFO] [stderr]  --> src/eval/builtin/defn.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn defn(l: LinkedList<ListElement>) -> ListElement {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mylisp-3f966b1bfe030e34
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7342fa47f9be486d887507bfa79e58160bb328877511ae739f5ee37fe5ab9d93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7342fa47f9be486d887507bfa79e58160bb328877511ae739f5ee37fe5ab9d93", kill_on_drop: false }`
[INFO] [stdout] 7342fa47f9be486d887507bfa79e58160bb328877511ae739f5ee37fe5ab9d93