[INFO] fetching crate metac 0.1.1...
[INFO] testing metac-0.1.1 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate metac 0.1.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate metac 0.1.1 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate metac 0.1.1
[INFO] finished tweaking crates.io crate metac 0.1.1
[INFO] tweaked toml for crates.io crate metac 0.1.1 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 28f3eb9ba9372d5f42941ee1a5a351f67a63d6f09b4eaa7b3d7dc572bae14ac6
[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" "28f3eb9ba9372d5f42941ee1a5a351f67a63d6f09b4eaa7b3d7dc572bae14ac6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "28f3eb9ba9372d5f42941ee1a5a351f67a63d6f09b4eaa7b3d7dc572bae14ac6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28f3eb9ba9372d5f42941ee1a5a351f67a63d6f09b4eaa7b3d7dc572bae14ac6", kill_on_drop: false }`
[INFO] [stdout] 28f3eb9ba9372d5f42941ee1a5a351f67a63d6f09b4eaa7b3d7dc572bae14ac6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=forbid" "-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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40add10f2fd9e4d30aab7fe5e18dba39d39660d9dc6daa5fe3fef6510287eb1f
[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" "40add10f2fd9e4d30aab7fe5e18dba39d39660d9dc6daa5fe3fef6510287eb1f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling metac v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "40add10f2fd9e4d30aab7fe5e18dba39d39660d9dc6daa5fe3fef6510287eb1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40add10f2fd9e4d30aab7fe5e18dba39d39660d9dc6daa5fe3fef6510287eb1f", kill_on_drop: false }`
[INFO] [stdout] 40add10f2fd9e4d30aab7fe5e18dba39d39660d9dc6daa5fe3fef6510287eb1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=forbid" "-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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2bc56f6ca55a64c5c8e3952171fe345d7278d3d457914c8e24497f1f1231e9f
[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" "f2bc56f6ca55a64c5c8e3952171fe345d7278d3d457914c8e24497f1f1231e9f", kill_on_drop: false }`
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling plotters-backend v0.3.0
[INFO] [stderr]    Compiling half v1.7.1
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling itertools v0.10.0
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling serde_cbor v0.11.1
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling plotters-svg v0.3.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling plotters v0.3.1
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling cast v0.2.6
[INFO] [stderr]    Compiling criterion-plot v0.4.3
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling criterion v0.3.4
[INFO] [stderr]    Compiling metac v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `invoked`
[INFO] [stdout]    --> lib.rs:494:13
[INFO] [stdout]     |
[INFO] [stdout] 494 |             pub invoked: usize,
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` 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 35.54s
[INFO] running `Command { std: "docker" "inspect" "f2bc56f6ca55a64c5c8e3952171fe345d7278d3d457914c8e24497f1f1231e9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2bc56f6ca55a64c5c8e3952171fe345d7278d3d457914c8e24497f1f1231e9f", kill_on_drop: false }`
[INFO] [stdout] f2bc56f6ca55a64c5c8e3952171fe345d7278d3d457914c8e24497f1f1231e9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=forbid" "-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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b035be766e2a1868ab2741aef9ed9d466a66cd7f3b9058a7a87bc068fcf632a7
[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" "b035be766e2a1868ab2741aef9ed9d466a66cd7f3b9058a7a87bc068fcf632a7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: field is never read: `invoked`
[INFO] [stderr]    --> lib.rs:494:13
[INFO] [stderr]     |
[INFO] [stderr] 494 |             pub invoked: usize,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.58s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/metac-b76a1dd693a5f4db)
[INFO] [stdout] 
[INFO] [stdout] running 33 tests
[INFO] [stdout] test tests::empty_evaluate_very_short ... ok
[INFO] [stdout] test tests::empty_nested_subcommand_with_more_empty_parse ... ok
[INFO] [stdout] test tests::increment_evaluate ... ok
[INFO] [stdout] test tests::interpret_unicode ... ok
[INFO] [stdout] test tests::iterate_very_long ... ok
[INFO] [stdout] test tests::parse_very_long ... ok
[INFO] [stdout] test tests::parse_weird_whitespace ... ok
[INFO] [stdout] test tests::partial_parse_single_line ... ok
[INFO] [stdout] test tests::premature_right_parentheses_discards_entire_line ... ok
[INFO] [stdout] test tests::subcommand_parse ... ok
[INFO] [stdout] test tests::partial_parse_error ... ok
[INFO] [stdout] test tests::partial_parse_error_complex ... ok
[INFO] [stdout] test tests::partial_parse_multi_line ... ok
[INFO] [stdout] test tests::partial_parse_multi_line_nested ... ok
[INFO] [stdout] test tests::fail_parse_too_long ... ok
[INFO] [stdout] test tests::recursive_evaluator ... ok
[INFO] [stdout] test tests::fail_parse_dangling_open_parenthesis ... ok
[INFO] [stdout] test tests::fail_parse_closing_parenthesis ... ok
[INFO] [stdout] test tests::evaluator ... ok
[INFO] [stdout] test tests::empty_subcommand_parse ... ok
[INFO] [stdout] test tests::empty_parse ... ok
[INFO] [stdout] test tests::subcommand_parse_multiline ... ok
[INFO] [stdout] test tests::interpret_multiple_simple ... ok
[INFO] [stdout] test tests::empty_evaluate ... ok
[INFO] [stdout] test tests::basic_parse ... ok
[INFO] [stdout] test tests::empty_nested_subcommand_parse ... ok
[INFO] [stdout] test tests::empty_evaluate_with_subsistution ... ok
[INFO] [stdout] test tests::interpret_empty ... ok
[INFO] [stdout] test tests::interpret_whitespace ... ok
[INFO] [stdout] test tests::empty_evaluate_very_long ... ok
[INFO] [stdout] test tests::interpret_multiple ... ok
[INFO] [stdout] test tests::parse_touching_nested_call ... ok
[INFO] [stdout] test tests::parse_unicode ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 33 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests metac
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test lib.rs - (line 4) ... ok
[INFO] [stdout] test lib.rs - (line 75) ... ok
[INFO] [stdout] test lib.rs - (line 38) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.50s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b035be766e2a1868ab2741aef9ed9d466a66cd7f3b9058a7a87bc068fcf632a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b035be766e2a1868ab2741aef9ed9d466a66cd7f3b9058a7a87bc068fcf632a7", kill_on_drop: false }`
[INFO] [stdout] b035be766e2a1868ab2741aef9ed9d466a66cd7f3b9058a7a87bc068fcf632a7