[INFO] cloning repository https://github.com/fromheten/plato
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fromheten/plato" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffromheten%2Fplato", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffromheten%2Fplato'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5b6cc48fa80eb224eb632dd3ad2353a24abfa146
[INFO] building fromheten/plato against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffromheten%2Fplato" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fromheten/plato 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/fromheten/plato
[INFO] finished tweaking git repo https://github.com/fromheten/plato
[INFO] tweaked toml for git repo https://github.com/fromheten/plato written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/fromheten/plato 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cab25fd69414739bd5855952015cd1b5dd287c8c1c83f0f99b76f9101893efef
[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" "cab25fd69414739bd5855952015cd1b5dd287c8c1c83f0f99b76f9101893efef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cab25fd69414739bd5855952015cd1b5dd287c8c1c83f0f99b76f9101893efef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cab25fd69414739bd5855952015cd1b5dd287c8c1c83f0f99b76f9101893efef", kill_on_drop: false }`
[INFO] [stdout] cab25fd69414739bd5855952015cd1b5dd287c8c1c83f0f99b76f9101893efef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b30cb022db1903e0432e633cf60c7ad4c934f7b189dda54cc2c956dbb160f2f0
[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" "b30cb022db1903e0432e633cf60c7ad4c934f7b189dda54cc2c956dbb160f2f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.9.0
[INFO] [stderr]    Compiling byte-tools v0.2.0
[INFO] [stderr]    Compiling arrayref v0.3.4
[INFO] [stderr]    Compiling byteorder v1.2.1
[INFO] [stderr]    Compiling rpds v0.3.0
[INFO] [stderr]    Compiling block-buffer v0.3.3
[INFO] [stderr]    Compiling base64 v0.9.0
[INFO] [stderr]    Compiling generic-array v0.9.0
[INFO] [stderr]    Compiling digest v0.7.2
[INFO] [stderr]    Compiling sha3 v0.7.2
[INFO] [stderr]    Compiling plato v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `type_of`
[INFO] [stdout]    --> src/main.rs:562:4
[INFO] [stdout]     |
[INFO] [stdout] 562 | fn type_of(expression: &Expression) -> &str {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `evaluate`
[INFO] [stdout]    --> src/main.rs:572:4
[INFO] [stdout]     |
[INFO] [stdout] 572 | fn evaluate(expression_given: Expression, context_given: Expression) -> Option<Expression> {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `given_arguments`
[INFO] [stdout]    --> src/main.rs:663:4
[INFO] [stdout]     |
[INFO] [stdout] 663 | fn given_arguments(lambda_call_expression: &Expression) -> Result<Expression, String> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `lambda_args`
[INFO] [stdout]    --> src/main.rs:667:4
[INFO] [stdout]     |
[INFO] [stdout] 667 | fn lambda_args(lambda_call_expression: &Expression) -> Result<Expression, String> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `lambda_body`
[INFO] [stdout]    --> src/main.rs:671:4
[INFO] [stdout]     |
[INFO] [stdout] 671 | fn lambda_body(lambda_call_expression: &Expression) -> Result<Expression, String> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rest_no_evaluate`
[INFO] [stdout]    --> src/main.rs:675:4
[INFO] [stdout]     |
[INFO] [stdout] 675 | fn rest_no_evaluate(e: Expression) -> Result<Expression, String> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rest`
[INFO] [stdout]    --> src/main.rs:692:4
[INFO] [stdout]     |
[INFO] [stdout] 692 | fn rest(e: Expression, context: Expression) -> Result<Expression, String> {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `zipmap`
[INFO] [stdout]    --> src/main.rs:719:4
[INFO] [stdout]     |
[INFO] [stdout] 719 | fn zipmap(vec0: Expression, vec1: Expression) -> Result<Expression, String> {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `nth_vector`
[INFO] [stdout]    --> src/main.rs:744:4
[INFO] [stdout]     |
[INFO] [stdout] 744 | fn nth_vector(e: Expression, n: usize) -> Result<Expression, String> {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `eval_test`
[INFO] [stdout]    --> src/main.rs:751:4
[INFO] [stdout]     |
[INFO] [stdout] 751 | fn eval_test(source_str: &str, context_source: &str, expectation: &str) {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `id`
[INFO] [stdout]    --> src/main.rs:859:4
[INFO] [stdout]     |
[INFO] [stdout] 859 | fn id(expression: &Expression) -> String {
[INFO] [stdout]     |    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.75s
[INFO] running `Command { std: "docker" "inspect" "b30cb022db1903e0432e633cf60c7ad4c934f7b189dda54cc2c956dbb160f2f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b30cb022db1903e0432e633cf60c7ad4c934f7b189dda54cc2c956dbb160f2f0", kill_on_drop: false }`
[INFO] [stdout] b30cb022db1903e0432e633cf60c7ad4c934f7b189dda54cc2c956dbb160f2f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 681428c66361feb001872bb64961482464f95cd7c66c4486cab2b3f874391c13
[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" "681428c66361feb001872bb64961482464f95cd7c66c4486cab2b3f874391c13", kill_on_drop: false }`
[INFO] [stderr]    Compiling plato v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.11s
[INFO] running `Command { std: "docker" "inspect" "681428c66361feb001872bb64961482464f95cd7c66c4486cab2b3f874391c13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "681428c66361feb001872bb64961482464f95cd7c66c4486cab2b3f874391c13", kill_on_drop: false }`
[INFO] [stdout] 681428c66361feb001872bb64961482464f95cd7c66c4486cab2b3f874391c13