[INFO] fetching crate metac 0.1.1...
[INFO] testing metac-0.1.1 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate metac 0.1.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate metac 0.1.1 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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] ea10c4c501809b32c007a51c9b84eb463fe7db01db49883e664f1db289b2ccb2
[INFO] running `Command { std: "docker" "start" "-a" "ea10c4c501809b32c007a51c9b84eb463fe7db01db49883e664f1db289b2ccb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea10c4c501809b32c007a51c9b84eb463fe7db01db49883e664f1db289b2ccb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea10c4c501809b32c007a51c9b84eb463fe7db01db49883e664f1db289b2ccb2", kill_on_drop: false }`
[INFO] [stdout] ea10c4c501809b32c007a51c9b84eb463fe7db01db49883e664f1db289b2ccb2
[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=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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2642caf61f21760328d614bac10398f4b40f5c206d7745516594327c25bd8e49
[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" "2642caf61f21760328d614bac10398f4b40f5c206d7745516594327c25bd8e49", kill_on_drop: false }`
[INFO] [stderr]    Compiling metac v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "2642caf61f21760328d614bac10398f4b40f5c206d7745516594327c25bd8e49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2642caf61f21760328d614bac10398f4b40f5c206d7745516594327c25bd8e49", kill_on_drop: false }`
[INFO] [stdout] 2642caf61f21760328d614bac10398f4b40f5c206d7745516594327c25bd8e49
[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=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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 489f68dd3ad9bfd8a51fadd0eae6ebff43e3e8c8fd3a417e03c7f45893c51fc9
[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" "489f68dd3ad9bfd8a51fadd0eae6ebff43e3e8c8fd3a417e03c7f45893c51fc9", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling bstr v0.2.17
[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 serde_json v1.0.71
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling plotters v0.3.1
[INFO] [stderr]    Compiling criterion-plot v0.4.4
[INFO] [stderr]    Compiling criterion v0.3.5
[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 1m 27s
[INFO] running `Command { std: "docker" "inspect" "489f68dd3ad9bfd8a51fadd0eae6ebff43e3e8c8fd3a417e03c7f45893c51fc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "489f68dd3ad9bfd8a51fadd0eae6ebff43e3e8c8fd3a417e03c7f45893c51fc9", kill_on_drop: false }`
[INFO] [stdout] 489f68dd3ad9bfd8a51fadd0eae6ebff43e3e8c8fd3a417e03c7f45893c51fc9
[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=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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 92d7d9c5df12ba40139c8446beedb34d4e80cf726cde268e8cd0abacf85b6fe4
[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" "92d7d9c5df12ba40139c8446beedb34d4e80cf726cde268e8cd0abacf85b6fe4", kill_on_drop: false }`
[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: `metac` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/metac-8c3a3581c162964d)
[INFO] [stdout] running 33 tests
[INFO] [stdout] test tests::basic_parse ... ok
[INFO] [stdout] test tests::empty_evaluate ... ok
[INFO] [stdout] test tests::empty_evaluate_very_long ... ok
[INFO] [stdout] test tests::empty_evaluate_with_subsistution ... ok
[INFO] [stdout] test tests::empty_nested_subcommand_parse ... ok
[INFO] [stdout] test tests::empty_nested_subcommand_with_more_empty_parse ... ok
[INFO] [stdout] test tests::empty_parse ... ok
[INFO] [stdout] test tests::empty_subcommand_parse ... ok
[INFO] [stdout] test tests::evaluator ... ok
[INFO] [stdout] test tests::fail_parse_too_long ... ok
[INFO] [stdout] test tests::increment_evaluate ... ok
[INFO] [stdout] test tests::interpret_whitespace ... ok
[INFO] [stdout] test tests::interpret_empty ... ok
[INFO] [stdout] test tests::parse_weird_whitespace ... ok
[INFO] [stdout] test tests::interpret_multiple ... ok
[INFO] [stdout] test tests::iterate_very_long ... ok
[INFO] [stdout] test tests::partial_parse_multi_line_nested ... ok
[INFO] [stdout] test tests::partial_parse_single_line ... ok
[INFO] [stdout] test tests::parse_very_long ... ok
[INFO] [stdout] test tests::partial_parse_error ... ok
[INFO] [stdout] test tests::recursive_evaluator ... ok
[INFO] [stdout] test tests::subcommand_parse ... ok
[INFO] [stdout] test tests::partial_parse_error_complex ... ok
[INFO] [stdout] test tests::partial_parse_multi_line ... ok
[INFO] [stdout] test tests::subcommand_parse_multiline ... ok
[INFO] [stdout] test tests::interpret_unicode ... ok
[INFO] [stdout] test tests::parse_unicode ... ok
[INFO] [stdout] test tests::parse_touching_nested_call ... ok
[INFO] [stdout] test tests::interpret_multiple_simple ... ok
[INFO] [stdout] test tests::fail_parse_closing_parenthesis ... ok
[INFO] [stdout] test tests::empty_evaluate_very_short ... ok
[INFO] [stdout] test tests::fail_parse_dangling_open_parenthesis ... ok
[INFO] [stdout] test tests::premature_right_parentheses_discards_entire_line ... 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 1.72s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "92d7d9c5df12ba40139c8446beedb34d4e80cf726cde268e8cd0abacf85b6fe4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92d7d9c5df12ba40139c8446beedb34d4e80cf726cde268e8cd0abacf85b6fe4", kill_on_drop: false }`
[INFO] [stdout] 92d7d9c5df12ba40139c8446beedb34d4e80cf726cde268e8cd0abacf85b6fe4