[INFO] cloning repository https://github.com/nasso/rscc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nasso/rscc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnasso%2Frscc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnasso%2Frscc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c6715bcc37b0b06ad6423af7c4d762289df66921
[INFO] testing nasso/rscc against 1.52.1 for beta-1.52-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnasso%2Frscc" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nasso/rscc on toolchain 1.52.1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.52.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nasso/rscc
[INFO] finished tweaking git repo https://github.com/nasso/rscc
[INFO] tweaked toml for git repo https://github.com/nasso/rscc written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/nasso/rscc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.52.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "metadata" "--no-deps" "--format-version=1", 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] 731cbb817073099639579e354a9e02b1aaabdac09f9828a747bb679786a82d7c
[INFO] running `Command { std: "docker" "start" "-a" "731cbb817073099639579e354a9e02b1aaabdac09f9828a747bb679786a82d7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "731cbb817073099639579e354a9e02b1aaabdac09f9828a747bb679786a82d7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "731cbb817073099639579e354a9e02b1aaabdac09f9828a747bb679786a82d7c", kill_on_drop: false }`
[INFO] [stdout] 731cbb817073099639579e354a9e02b1aaabdac09f9828a747bb679786a82d7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "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] 3e05cbf8be4b02985be4a396a67bd02836b471cfd129aab3a929d813fe433dca
[INFO] running `Command { std: "docker" "start" "-a" "3e05cbf8be4b02985be4a396a67bd02836b471cfd129aab3a929d813fe433dca", kill_on_drop: false }`
[INFO] [stderr]    Compiling ryu v0.2.8
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling nom v5.0.0-beta2
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling stackvector v1.0.2
[INFO] [stderr]    Compiling lexical-core v0.4.0
[INFO] [stderr]    Compiling rscc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `pp_tokens`
[INFO] [stdout]   --> src/pre/mod.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |     let pp_tokens = parse::parse_preprocessing_file::<VerboseError<&str>>(&source)
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pp_tokens`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` 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 17.44s
[INFO] running `Command { std: "docker" "inspect" "3e05cbf8be4b02985be4a396a67bd02836b471cfd129aab3a929d813fe433dca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e05cbf8be4b02985be4a396a67bd02836b471cfd129aab3a929d813fe433dca", kill_on_drop: false }`
[INFO] [stdout] 3e05cbf8be4b02985be4a396a67bd02836b471cfd129aab3a929d813fe433dca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "test" "--frozen" "--no-run" "--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] 6944334c0f92c71e69dee8a690dfcf7f216e9c78332f0d0632fa6c6166299cec
[INFO] running `Command { std: "docker" "start" "-a" "6944334c0f92c71e69dee8a690dfcf7f216e9c78332f0d0632fa6c6166299cec", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `pp_tokens`
[INFO] [stdout]   --> src/pre/mod.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |     let pp_tokens = parse::parse_preprocessing_file::<VerboseError<&str>>(&source)
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pp_tokens`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rscc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `pp_tokens`
[INFO] [stdout]   --> src/pre/mod.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |     let pp_tokens = parse::parse_preprocessing_file::<VerboseError<&str>>(&source)
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pp_tokens`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.92s
[INFO] running `Command { std: "docker" "inspect" "6944334c0f92c71e69dee8a690dfcf7f216e9c78332f0d0632fa6c6166299cec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6944334c0f92c71e69dee8a690dfcf7f216e9c78332f0d0632fa6c6166299cec", kill_on_drop: false }`
[INFO] [stdout] 6944334c0f92c71e69dee8a690dfcf7f216e9c78332f0d0632fa6c6166299cec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 575178730bba7a78e7dfbe653953e8e03549a60f9249a44a46bd7b74df6315e0
[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" "575178730bba7a78e7dfbe653953e8e03549a60f9249a44a46bd7b74df6315e0", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `pp_tokens`
[INFO] [stderr]   --> src/pre/mod.rs:83:9
[INFO] [stderr]    |
[INFO] [stderr] 83 |     let pp_tokens = parse::parse_preprocessing_file::<VerboseError<&str>>(&source)
[INFO] [stderr]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pp_tokens`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pp_tokens`
[INFO] [stderr]   --> src/pre/mod.rs:83:9
[INFO] [stderr]    |
[INFO] [stderr] 83 |     let pp_tokens = parse::parse_preprocessing_file::<VerboseError<&str>>(&source)
[INFO] [stderr]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pp_tokens`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rscc-6ae0ccbfedd1f2a4)
[INFO] [stdout] 
[INFO] [stdout] running 24 tests
[INFO] [stdout] test parser::common::tests::parse_decimal_constant ... ok
[INFO] [stdout] test parser::common::tests::parse_primitive_type ... ok
[INFO] [stdout] test parser::common::tests::parse_identifier ... ok
[INFO] [stdout] test parser::common::tests::parse_unsigned_decimal_constant ... ok
[INFO] [stdout] test parser::common::tests::parse_long_decimal_constant ... ok
[INFO] [stdout] test parser::common::tests::parse_unsigned_long_decimal_constant ... ok
[INFO] [stdout] test pre::parse::tests::test_parse_identifier ... ok
[INFO] [stdout] test pre::parse::tests::test_parse_pp_number ... ok
[INFO] [stdout] test parser::statements::tests::parse_return_statement ... ok
[INFO] [stdout] test parser::common::tests::parse_func_args_def ... ok
[INFO] [stdout] test pre::parse::tests::test_parse_character_constant ... ok
[INFO] [stdout] test pre::parse::tests::test_parse_string_literal ... ok
[INFO] [stdout] test pre::tests::test_escape_newlines ... ok
[INFO] [stdout] test pre::parse::tests::test_parse_control_line ... ok
[INFO] [stdout] test pre::tests::test_replace_trigraph_sequences ... ok
[INFO] [stdout] test pre::parse::tests::test_parse_control_line_whitespace ... ok
[INFO] [stdout] test pre::parse::tests::test_parse_header_name ... ok
[INFO] [stdout] test pre::tests::test_sanitize_newlines ... ok
[INFO] [stdout] test parser::common::tests::parse_primitive_type_panic_on_invalid_type ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rscc-de8fba99d284ab5f)
[INFO] [stdout] test parser::common::tests::parse_func_args_def_panic_on_trailing_comma ... ok
[INFO] [stdout] test parser::common::tests::parse_identifier_panic_when_reserved ... ok
[INFO] [stdout] test parser::common::tests::parse_identifier_panic_when_starts_with_digit ... ok
[INFO] [stdout] test pre::parse::tests::test_parse_identifier_fail ... ok
[INFO] [stdout] test pre::parse::tests::test_tokens ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rscc
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "575178730bba7a78e7dfbe653953e8e03549a60f9249a44a46bd7b74df6315e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "575178730bba7a78e7dfbe653953e8e03549a60f9249a44a46bd7b74df6315e0", kill_on_drop: false }`
[INFO] [stdout] 575178730bba7a78e7dfbe653953e8e03549a60f9249a44a46bd7b74df6315e0