[INFO] fetching crate programinduction 0.8.0...
[INFO] testing programinduction-0.8.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate programinduction 0.8.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate programinduction 0.8.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate programinduction 0.8.0
[INFO] finished tweaking crates.io crate programinduction 0.8.0
[INFO] tweaked toml for crates.io crate programinduction 0.8.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] edb9d745cadf871fb70eabff497b421eec494673d105d31dba0c8912ca773c95
[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" "edb9d745cadf871fb70eabff497b421eec494673d105d31dba0c8912ca773c95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "edb9d745cadf871fb70eabff497b421eec494673d105d31dba0c8912ca773c95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edb9d745cadf871fb70eabff497b421eec494673d105d31dba0c8912ca773c95", kill_on_drop: false }`
[INFO] [stdout] edb9d745cadf871fb70eabff497b421eec494673d105d31dba0c8912ca773c95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b75300fe92bf83bb3652dde6656cb1d3a409979a3bd17cfa2898db454b06ea68
[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" "b75300fe92bf83bb3652dde6656cb1d3a409979a3bd17cfa2898db454b06ea68", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling term_rewriting v0.5.0
[INFO] [stderr]    Compiling polytype v6.1.1
[INFO] [stderr]    Compiling programinduction v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/domains/strings.rs:736:10
[INFO] [stdout]     |
[INFO] [stdout] 736 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.06s
[INFO] running `Command { std: "docker" "inspect" "b75300fe92bf83bb3652dde6656cb1d3a409979a3bd17cfa2898db454b06ea68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b75300fe92bf83bb3652dde6656cb1d3a409979a3bd17cfa2898db454b06ea68", kill_on_drop: false }`
[INFO] [stdout] b75300fe92bf83bb3652dde6656cb1d3a409979a3bd17cfa2898db454b06ea68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4b622c071dff0d56d2906856a030fa6c5a3b41c7364e99e600e4bc763dcb369
[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" "d4b622c071dff0d56d2906856a030fa6c5a3b41c7364e99e600e4bc763dcb369", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/domains/strings.rs:736:10
[INFO] [stdout]     |
[INFO] [stdout] 736 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling programinduction v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> tests/lambda.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 |     /// an index never makes sense outside of an application or lambda body.
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/domains/strings.rs:736:10
[INFO] [stdout]     |
[INFO] [stdout] 736 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` 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 test [unoptimized + debuginfo] target(s) in 6.26s
[INFO] running `Command { std: "docker" "inspect" "d4b622c071dff0d56d2906856a030fa6c5a3b41c7364e99e600e4bc763dcb369", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4b622c071dff0d56d2906856a030fa6c5a3b41c7364e99e600e4bc763dcb369", kill_on_drop: false }`
[INFO] [stdout] d4b622c071dff0d56d2906856a030fa6c5a3b41c7364e99e600e4bc763dcb369
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fe795e4e04dfdafe30d5bff9fc5fc40c75d673b53bad9a34762e2e078bb59ec9
[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" "fe795e4e04dfdafe30d5bff9fc5fc40c75d673b53bad9a34762e2e078bb59ec9", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/domains/strings.rs:736:10
[INFO] [stderr]     |
[INFO] [stderr] 736 |         };
[INFO] [stderr]     |          ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `programinduction` (lib) generated 1 warning
[INFO] [stderr] warning: `programinduction` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> tests/lambda.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     /// an index never makes sense outside of an application or lambda body.
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: `programinduction` (test "lambda") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/programinduction-48106d07b15e6f2b)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test trs::parser::tests::comment_test ... ok
[INFO] [stdout] test trs::parser::tests::declaration_var_test ... ok
[INFO] [stdout] test trs::parser::tests::declaration_op_test ... ok
[INFO] [stdout] test trs::parser::tests::lexicon_test ... ok
[INFO] [stdout] test trs::parser::tests::context_test ... ok
[INFO] [stdout] test trs::parser::tests::templates_test ... ok
[INFO] [stdout] test trs::parser::tests::rulecontext_test ... ok
[INFO] [stdout] test trs::parser::tests::trs_test ... ok
[INFO] [stderr]      Running tests/ec.rs (/opt/rustwide/target/debug/deps/ec-dee6cb66cf28aa26)
[INFO] [stdout] test trs::parser::tests::typed_rule_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test ec_circuits_dl ... ignored
[INFO] [stdout] test ec_strings ... ignored
[INFO] [stdout] test explore_arith_pcfg ... ok
[INFO] [stdout] test explore_circuits_timeout ... ok
[INFO] [stdout] test explore_strings ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 6.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/gp.rs (/opt/rustwide/target/debug/deps/gp-72c5d48f39212995)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running tests/lambda.rs (/opt/rustwide/target/debug/deps/lambda-fceffec2322de9fd)
[INFO] [stdout] test gp_sum_arith ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test lambda_expression_parse_index ... ok
[INFO] [stdout] test lambda_expression_parse_application ... ok
[INFO] [stdout] test lambda_eval_somewhat_simple ... ok
[INFO] [stdout] test lambda_expression_parse_abstraction ... ok
[INFO] [stdout] test lambda_expression_parse_invented ... ok
[INFO] [stdout] test lambda_expression_parse_primitive ... ok
[INFO] [stdout] test lambda_expression_infer ... ok
[INFO] [stdout] test lambda_eval_firstclass ... ok
[INFO] [stdout] test lambda_lazy_eval ... ok
[INFO] [stdout] test lambda_lazy_eval_firstclass ... ok
[INFO] [stdout] test lambda_eval_simplest ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests programinduction
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> /opt/rustwide/workdir/src/domains/strings.rs:736:10
[INFO] [stderr]     |
[INFO] [stderr] 736 |         };
[INFO] [stderr]     |          ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 42 tests
[INFO] [stdout] test src/domains/strings.rs - domains::strings (line 5) ... ignored
[INFO] [stdout] test src/ec.rs - ec::EC (line 44) ... ignored
[INFO] [stdout] test src/ec.rs - ec::EC::ec (line 123) ... ignored
[INFO] [stdout] test src/lambda/mod.rs - lambda::Language::compress (line 199) ... ignored
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name programinduction --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern crossbeam_channel=/opt/rustwide/target/debug/deps/libcrossbeam_channel-26f2b466f077ceaa.rlib --extern itertools=/opt/rustwide/target/debug/deps/libitertools-9107eec6aa98d644.rlib --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-df981c5871754530.rlib --extern maplit=/opt/rustwide/target/debug/deps/libmaplit-21d5ff4807e27e80.rlib --extern nom=/opt/rustwide/target/debug/deps/libnom-0007a718654587e1.rlib --extern polytype=/opt/rustwide/target/debug/deps/libpolytype-303b5e2f6385814f.rlib --extern programinduction=/opt/rustwide/target/debug/deps/libprograminduction-bf5968535f7d5949.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-138c7e9fd96eb179.rlib --extern rayon=/opt/rustwide/target/debug/deps/librayon-3420e84d71a91800.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-1ce2c22b35a409bb.rlib --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-dead3eb104070ba2.rlib --extern term_rewriting=/opt/rustwide/target/debug/deps/libterm_rewriting-1b404821eeb897ec.rlib -C embed-bitcode=no --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "fe795e4e04dfdafe30d5bff9fc5fc40c75d673b53bad9a34762e2e078bb59ec9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe795e4e04dfdafe30d5bff9fc5fc40c75d673b53bad9a34762e2e078bb59ec9", kill_on_drop: false }`
[INFO] [stdout] fe795e4e04dfdafe30d5bff9fc5fc40c75d673b53bad9a34762e2e078bb59ec9