[INFO] crate polka 0.1.2 is already in cache
[INFO] extracting crate polka 0.1.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/polka/0.1.2
[INFO] extracting crate polka 0.1.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/polka/0.1.2
[INFO] validating manifest of polka-0.1.2 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of polka-0.1.2 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing polka-0.1.2
[INFO] finished frobbing polka-0.1.2
[INFO] frobbed toml for polka-0.1.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/polka/0.1.2/Cargo.toml
[INFO] started frobbing polka-0.1.2
[INFO] finished frobbing polka-0.1.2
[INFO] frobbed toml for polka-0.1.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/polka/0.1.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing polka-0.1.2 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/polka/0.1.2:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 5b2659c544decf329635622b0d336d1b1ea78eb9e41d9a059c25e38981c63cfe
[INFO] running `"docker" "start" "-a" "5b2659c544decf329635622b0d336d1b1ea78eb9e41d9a059c25e38981c63cfe"`
[INFO] [stderr]    Compiling pom v3.0.2
[INFO] [stderr]    Compiling polka v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `list`
[INFO] [stderr]  --> src/parser/statement.rs:7:19
[INFO] [stderr]   |
[INFO] [stderr] 7 | use pom::parser::{list, sym, Parser};
[INFO] [stderr]   |                   ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `basic_1`
[INFO] [stderr]  --> src/test_fixtures.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn basic_1() -> Graph {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `digraph`
[INFO] [stderr]   --> src/test_fixtures.rs:97:1
[INFO] [stderr]    |
[INFO] [stderr] 97 | pub fn digraph() -> Graph {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]   --> src/parser/ident.rs:13:38
[INFO] [stderr]    |
[INFO] [stderr] 13 |   alphanum(term) || (term >= 0x80 && term <= 0xFF) || term == 0x5F
[INFO] [stderr]    |                                      ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.47s
[INFO] running `"docker" "inspect" "5b2659c544decf329635622b0d336d1b1ea78eb9e41d9a059c25e38981c63cfe"`
[INFO] running `"docker" "rm" "-f" "5b2659c544decf329635622b0d336d1b1ea78eb9e41d9a059c25e38981c63cfe"`
[INFO] [stdout] 5b2659c544decf329635622b0d336d1b1ea78eb9e41d9a059c25e38981c63cfe
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/polka/0.1.2:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 68aa19290c355b918e095fe9947e336b80800a9346c7430ecae47e96efcad2d4
[INFO] running `"docker" "start" "-a" "68aa19290c355b918e095fe9947e336b80800a9346c7430ecae47e96efcad2d4"`
[INFO] [stderr]    Compiling assert_approx_eq v1.1.0
[INFO] [stderr]    Compiling polka v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `list`
[INFO] [stderr]  --> src/parser/statement.rs:7:19
[INFO] [stderr]   |
[INFO] [stderr] 7 | use pom::parser::{list, sym, Parser};
[INFO] [stderr]   |                   ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `r`
[INFO] [stderr]   --> src/lib.rs:75:14
[INFO] [stderr]    |
[INFO] [stderr] 75 |           Ok(r) => (),
[INFO] [stderr]    |              ^ help: consider prefixing with an underscore: `_r`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]   --> src/parser/ident.rs:13:38
[INFO] [stderr]    |
[INFO] [stderr] 13 |   alphanum(term) || (term >= 0x80 && term <= 0xFF) || term == 0x5F
[INFO] [stderr]    |                                      ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.35s
[INFO] running `"docker" "inspect" "68aa19290c355b918e095fe9947e336b80800a9346c7430ecae47e96efcad2d4"`
[INFO] running `"docker" "rm" "-f" "68aa19290c355b918e095fe9947e336b80800a9346c7430ecae47e96efcad2d4"`
[INFO] [stdout] 68aa19290c355b918e095fe9947e336b80800a9346c7430ecae47e96efcad2d4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/polka/0.1.2:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] ed55a31fecbfe8ca0ba8d8f4c41896d2a71794795c3847a96d9e597be745cae9
[INFO] running `"docker" "start" "-a" "ed55a31fecbfe8ca0ba8d8f4c41896d2a71794795c3847a96d9e597be745cae9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/polka-83b053507965a3ab
[INFO] [stdout] 
[INFO] [stdout] running 31 tests
[INFO] [stdout] test parser::edge::test::edge_op::mixed_tokens ... ok
[INFO] [stdout] test parser::edge::test::edge_rhs_list::mixed_tokens ... ok
[INFO] [stdout] test parser::graph::test::sub_graph::mixed_tokens ... ok
[INFO] [stdout] test parser::ident::test::id_pair_with_correct_input ... ok
[INFO] [stdout] test parser::ident::test::ident_with_correct_input ... ok
[INFO] [stdout] test parser::ident::test::id_pair_with_incorrect_input ... ok
[INFO] [stdout] test parser::ident::test::number_with_correct_input ... ok
[INFO] [stdout] test parser::ident::test::ident_with_incorrect_input ... ok
[INFO] [stdout] test parser::graph::test::graph::test ... ok
[INFO] [stdout] test parser::node::test::port::mixed_tokens ... ok
[INFO] [stdout] test parser::node::test::node_statement::mixed_tokens ... ok
[INFO] [stdout] test parser::ident::test::number_with_incorrect_input ... ok
[INFO] [stdout] test parser::node::test::compass::mixed_tokens ... ok
[INFO] [stdout] test parser::edge::test::edge_statement::mixed_tokens ... ok
[INFO] [stdout] test parser::statement::test::attribute_statement::mixed_tokens ... ok
[INFO] [stdout] test parser::node::test::node_id::mixed_tokens ... ok
[INFO] [stdout] test parser::statement::test::statements::attribute_statement ... ok
[INFO] [stdout] test parser::statement::test::attrbute_list::mixed_tokens ... ok
[INFO] [stdout] test parser::statement::test::statements::node_statement ... ok
[INFO] [stdout] test parser::symbols::test::graph::mixed_tokens ... ok
[INFO] [stdout] test parser::statement::test::statements::id_pair ... ok
[INFO] [stdout] test parser::symbols::test::edge::mixed_tokens ... ok
[INFO] [stdout] test parser::statement::test::statements::edge_statement ... ok
[INFO] [stdout] test parser::symbols::test::strict::mixed_tokens ... ok
[INFO] [stdout] test parser::symbols::test::node::mixed_tokens ... ok
[INFO] [stdout] test parser::symbols::test::digraph::mixed_tokens ... ok
[INFO] [stdout] test parser::symbols::test::subgraph::mixed_tokens ... ok
[INFO] [stdout] test parser::statement::test::statements::sub_graph ... ok
[INFO] [stdout] test tests::parse::known_examples_verify ... ok
[INFO] [stdout] test tests::parse::known_examples_parse ... FAILED
[INFO] [stdout] test parser::symbols::test::comment::mixed_tokens ... test parser::symbols::test::comment::mixed_tokens has been running for over 60 seconds
[ERROR] error running command: no output for 300 seconds
[INFO] running `"docker" "inspect" "ed55a31fecbfe8ca0ba8d8f4c41896d2a71794795c3847a96d9e597be745cae9"`
[INFO] running `"docker" "rm" "-f" "ed55a31fecbfe8ca0ba8d8f4c41896d2a71794795c3847a96d9e597be745cae9"`
[INFO] [stdout] ed55a31fecbfe8ca0ba8d8f4c41896d2a71794795c3847a96d9e597be745cae9