[INFO] updating cached repository https://github.com/marad/rusty-parens
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 994c7028f1a17201774a71635b93f32ac92bffdd
[INFO] testing marad/rusty-parens against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarad%2Frusty-parens" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/marad/rusty-parens on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/marad/rusty-parens
[INFO] finished tweaking git repo https://github.com/marad/rusty-parens
[INFO] tweaked toml for git repo https://github.com/marad/rusty-parens written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/marad/rusty-parens already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1a8037634cff43b4a48a08235c1b9dab39c72dbe9642294eda5e4acc8ed1acad
[INFO] running `"docker" "start" "-a" "1a8037634cff43b4a48a08235c1b9dab39c72dbe9642294eda5e4acc8ed1acad"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]    Compiling syn v0.15.32
[INFO] [stderr]    Compiling cc v1.0.35
[INFO] [stderr]    Compiling cfg-if v0.1.7
[INFO] [stderr]    Compiling backtrace v0.3.15
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling rusty-parens v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/eval/scope.rs:15:34
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub fn put(&mut self, name: &ToString, value: Expression) {
[INFO] [stderr]    |                                  ^^^^^^^^ help: use `dyn`: `dyn ToString`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Regular`
[INFO] [stderr]   --> src/reader.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Regular(Vec<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.24s
[INFO] running `"docker" "inspect" "1a8037634cff43b4a48a08235c1b9dab39c72dbe9642294eda5e4acc8ed1acad"`
[INFO] running `"docker" "rm" "-f" "1a8037634cff43b4a48a08235c1b9dab39c72dbe9642294eda5e4acc8ed1acad"`
[INFO] [stdout] 1a8037634cff43b4a48a08235c1b9dab39c72dbe9642294eda5e4acc8ed1acad
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] afe4531c314cad8daf9cc658d31d41796d23583d5413f2f13309398267c65500
[INFO] running `"docker" "start" "-a" "afe4531c314cad8daf9cc658d31d41796d23583d5413f2f13309398267c65500"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling rusty-parens v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/eval/scope.rs:15:34
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub fn put(&mut self, name: &ToString, value: Expression) {
[INFO] [stderr]    |                                  ^^^^^^^^ help: use `dyn`: `dyn ToString`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Regular`
[INFO] [stderr]   --> src/reader.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Regular(Vec<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.89s
[INFO] running `"docker" "inspect" "afe4531c314cad8daf9cc658d31d41796d23583d5413f2f13309398267c65500"`
[INFO] running `"docker" "rm" "-f" "afe4531c314cad8daf9cc658d31d41796d23583d5413f2f13309398267c65500"`
[INFO] [stdout] afe4531c314cad8daf9cc658d31d41796d23583d5413f2f13309398267c65500
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 13c3e43b76e8698c019c1964379bfccd2ab91e00adc2877a784fdc2a8d701faf
[INFO] running `"docker" "start" "-a" "13c3e43b76e8698c019c1964379bfccd2ab91e00adc2877a784fdc2a8d701faf"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/eval/scope.rs:15:34
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub fn put(&mut self, name: &ToString, value: Expression) {
[INFO] [stderr]    |                                  ^^^^^^^^ help: use `dyn`: `dyn ToString`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Regular`
[INFO] [stderr]   --> src/reader.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Regular(Vec<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rusty_parens-d94d81349195b120
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test eval::test::basic::functions::should_return_error_when_evaluating_empty_list ... ok
[INFO] [stdout] test reader::test::basic::should_read_string ... ok
[INFO] [stdout] test reader::test::should_read_nested_lists ... ok
[INFO] [stdout] test eval::test::basic::functions::should_evaluate_functions ... ok
[INFO] [stdout] test eval::test::basic::should_eval_values_to_themselves ... ok
[INFO] [stdout] test eval::test::basic::identifiers::should_return_proper_error_when_identifier_is_not_found ... ok
[INFO] [stdout] test eval::test::basic::functions::should_eval_function_args ... ok
[INFO] [stdout] test tokenizer::test::basic::should_ignore_trailing_whitespace_when_reading_numbers ... ok
[INFO] [stdout] test tokenizer::test::basic::should_ignore_leading_whitespace ... ok
[INFO] [stdout] test tokenizer::test::basic::should_read_float ... ok
[INFO] [stdout] test reader::test::basic::should_read_identifier ... ok
[INFO] [stdout] test eval::test::basic::identifiers::should_evaluate_identifiers ... ok
[INFO] [stdout] test reader::test::basic::should_read_integer ... ok
[INFO] [stdout] test tokenizer::test::basic::should_read_string ... ok
[INFO] [stdout] test tokenizer::test::basic::should_read_integer ... ok
[INFO] [stdout] test reader::test::basic::should_read_float ... ok
[INFO] [stdout] test reader::test::basic::should_rad_list ... ok
[INFO] [stdout] test tokenizer::test::should_escape_string_characters ... ok
[INFO] [stdout] test tokenizer::test::should_read_function_call_with_arguments ... ok
[INFO] [stdout] test tokenizer::test::basic::should_read_identifier ... ok
[INFO] [stdout] test tokenizer::test::should_read_simple_function_call ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "13c3e43b76e8698c019c1964379bfccd2ab91e00adc2877a784fdc2a8d701faf"`
[INFO] running `"docker" "rm" "-f" "13c3e43b76e8698c019c1964379bfccd2ab91e00adc2877a784fdc2a8d701faf"`
[INFO] [stdout] 13c3e43b76e8698c019c1964379bfccd2ab91e00adc2877a784fdc2a8d701faf