[INFO] cloning repository https://github.com/wearegay/mucc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wearegay/mucc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwearegay%2Fmucc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwearegay%2Fmucc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 346c4a99f0ce5a1ce85bf844a2a5e9ea641774e2
[INFO] testing wearegay/mucc against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwearegay%2Fmucc" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wearegay/mucc on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wearegay/mucc
[INFO] finished tweaking git repo https://github.com/wearegay/mucc
[INFO] tweaked toml for git repo https://github.com/wearegay/mucc written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/wearegay/mucc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded arbitrary v0.2.0
[INFO] [stderr]   Downloaded honggfuzz v0.5.40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0cf1039164c01002bbd000f2e3f99f82d18283a1a418fb2568534dd17bb8de16
[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" "0cf1039164c01002bbd000f2e3f99f82d18283a1a418fb2568534dd17bb8de16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0cf1039164c01002bbd000f2e3f99f82d18283a1a418fb2568534dd17bb8de16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cf1039164c01002bbd000f2e3f99f82d18283a1a418fb2568534dd17bb8de16", kill_on_drop: false }`
[INFO] [stdout] 0cf1039164c01002bbd000f2e3f99f82d18283a1a418fb2568534dd17bb8de16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+beta-2021-01-01" "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] 50eba9fbc770adf0c62e42ac1b943812ff3e5d80fb5e52c68c5268ac128210ba
[INFO] running `Command { std: "docker" "start" "-a" "50eba9fbc770adf0c62e42ac1b943812ff3e5d80fb5e52c68c5268ac128210ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling μcc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: The usage of Script Group `Greek` in this crate consists solely of mixed script confusables
[INFO] [stdout]   --> src/parse/rules.rs:39:30
[INFO] [stdout]    |
[INFO] [stdout] 39 |     (@replacement $parens:tt ε $($tail:tt)*) => {
[INFO] [stdout]    |                              ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mixed_script_confusables)]` on by default
[INFO] [stdout]    = note: The usage includes 'ε' (U+03B5).
[INFO] [stdout]    = note: Please recheck to make sure their usages are indeed what you want.
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.68s
[INFO] running `Command { std: "docker" "inspect" "50eba9fbc770adf0c62e42ac1b943812ff3e5d80fb5e52c68c5268ac128210ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50eba9fbc770adf0c62e42ac1b943812ff3e5d80fb5e52c68c5268ac128210ba", kill_on_drop: false }`
[INFO] [stdout] 50eba9fbc770adf0c62e42ac1b943812ff3e5d80fb5e52c68c5268ac128210ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5949e5cbbfe6bab31cebd02dd2ecc34b93b61882e68046b8be3469a5900310e
[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" "e5949e5cbbfe6bab31cebd02dd2ecc34b93b61882e68046b8be3469a5900310e", kill_on_drop: false }`
[INFO] [stderr]    Compiling μcc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: The usage of Script Group `Greek` in this crate consists solely of mixed script confusables
[INFO] [stdout]   --> src/parse/rules.rs:39:30
[INFO] [stdout]    |
[INFO] [stdout] 39 |     (@replacement $parens:tt ε $($tail:tt)*) => {
[INFO] [stdout]    |                              ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mixed_script_confusables)]` on by default
[INFO] [stdout]    = note: The usage includes 'ε' (U+03B5).
[INFO] [stdout]    = note: Please recheck to make sure their usages are indeed what you want.
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.64s
[INFO] running `Command { std: "docker" "inspect" "e5949e5cbbfe6bab31cebd02dd2ecc34b93b61882e68046b8be3469a5900310e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5949e5cbbfe6bab31cebd02dd2ecc34b93b61882e68046b8be3469a5900310e", kill_on_drop: false }`
[INFO] [stdout] e5949e5cbbfe6bab31cebd02dd2ecc34b93b61882e68046b8be3469a5900310e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e62f301c682d03373f2bd856790370aabd5b2fea284ab720c55e5feec318037a
[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" "e62f301c682d03373f2bd856790370aabd5b2fea284ab720c55e5feec318037a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr] warning: The usage of Script Group `Greek` in this crate consists solely of mixed script confusables
[INFO] [stdout] running 39 tests
[INFO] [stderr]   --> src/parse/rules.rs:39:30
[INFO] [stderr]    |
[INFO] [stderr] 39 |     (@replacement $parens:tt ε $($tail:tt)*) => {
[INFO] [stderr]    |                              ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(mixed_script_confusables)]` on by default
[INFO] [stderr]    = note: The usage includes 'ε' (U+03B5).
[INFO] [stderr]    = note: Please recheck to make sure their usages are indeed what you want.
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/μcc-4c47b12f231afe15
[INFO] [stdout] test lex::tests::test_invalid_escape ... ok
[INFO] [stdout] test lex::tests::test_incomplete_binary_literal ... ok
[INFO] [stdout] test lex::tests::test_invalid_decimal_escape ... ok
[INFO] [stdout] test lex::tests::test_lexer_comment ... ok
[INFO] [stdout] test lex::tests::test_invalid_hex_byte_escape ... ok
[INFO] [stdout] test lex::tests::test_lexer_error_invalid_size_literal ... ok
[INFO] [stdout] test lex::tests::test_lexer_plus ... ok
[INFO] [stdout] test lex::tests::test_lower_unicode_escape ... ok
[INFO] [stdout] test lex::tests::test_lexer_triple ... ok
[INFO] [stdout] test lex::tests::test_lexer_int_literal ... ok
[INFO] [stdout] test lex::tests::test_lexer_plus_plus ... ok
[INFO] [stdout] test lex::tests::test_truncated_hex_byte_escape ... ok
[INFO] [stdout] test lex::tests::test_truncated_string_escape ... ok
[INFO] [stdout] test lex::tests::test_unclosed_string ... ok
[INFO] [stdout] test lex::tests::test_lexer_increment ... ok
[INFO] [stdout] test parse::tests::test_n_body ... ignored
[INFO] [stdout] test lex::tests::test_lexer_identifier ... ok
[INFO] [stdout] test lex::tests::test_lexer_location ... ok
[INFO] [stdout] test lex::tests::test_lexer_nonint_literal ... ok
[INFO] [stdout] test lex::tests::test_truncated_upper_unicode_escape ... ok
[INFO] [stdout] test lex::tests::test_zero_at_end ... ok
[INFO] [stdout] test lex::tests::test_lexer_invalid_char_literal ... ok
[INFO] [stdout] test lex::tests::test_truncated_decimal ... ok
[INFO] [stdout] test lex::tests::test_multiline_nextnt ... ok
[INFO] [stdout] test lex::tests::test_lexer_valid_char_literal ... ok
[INFO] [stdout] test lex::tests::test_lexer_pointerderef_lessthan_minus ... ok
[INFO] [stdout] test lex::tests::test_lexer_zero ... ok
[INFO] [stdout] test lex::tests::test_truncated_lower_unicode_escape ... ok
[INFO] [stdout] test lex::tests::test_lexer_while_keyword ... ok
[INFO] [stdout] test lex::tests::test_lexer_function_definition ... ok
[INFO] [stdout] test lex::tests::test_lexer_string_literal ... ok
[INFO] [stdout] test untyped_ast::tests::test_forward_declaration ... ok
[INFO] [stdout] test parse::tests::test_parse_semicolon ... ok
[INFO] [stdout] test parse::tests::test_parse_0_invalid ... ok
[INFO] [stdout] test parse::tests::test_parse_typedef ... ok
[INFO] [stdout] test parse::tests::test_parse_empty ... ok
[INFO] [stdout] test parse::tests::test_parse_pointers ... ok
[INFO] [stdout] test parse::tests::test_parse_minimal_main ... ok
[INFO] [stdout] test parse::tests::test_parse_gcd ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 38 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.40s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e62f301c682d03373f2bd856790370aabd5b2fea284ab720c55e5feec318037a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e62f301c682d03373f2bd856790370aabd5b2fea284ab720c55e5feec318037a", kill_on_drop: false }`
[INFO] [stdout] e62f301c682d03373f2bd856790370aabd5b2fea284ab720c55e5feec318037a