[INFO] fetching crate gearley 0.0.4...
[INFO] testing gearley-0.0.4 against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] extracting crate gearley 0.0.4 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate gearley 0.0.4 on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gearley 0.0.4
[INFO] finished tweaking crates.io crate gearley 0.0.4
[INFO] tweaked toml for crates.io crate gearley 0.0.4 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "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] 1fb00f795fb123b96c7ca91b97876ef59ab6ffa5951e31b2c82572ffae2d6c4d
[INFO] running `Command { std: "docker" "start" "-a" "1fb00f795fb123b96c7ca91b97876ef59ab6ffa5951e31b2c82572ffae2d6c4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1fb00f795fb123b96c7ca91b97876ef59ab6ffa5951e31b2c82572ffae2d6c4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fb00f795fb123b96c7ca91b97876ef59ab6ffa5951e31b2c82572ffae2d6c4d", kill_on_drop: false }`
[INFO] [stdout] 1fb00f795fb123b96c7ca91b97876ef59ab6ffa5951e31b2c82572ffae2d6c4d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "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] fb0bd8390bae69de7f3e3515fae9727af0fa723f0758268ae689ad446ead4dff
[INFO] running `Command { std: "docker" "start" "-a" "fb0bd8390bae69de7f3e3515fae9727af0fa723f0758268ae689ad446ead4dff", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.52
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling ref_slice v1.2.0
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling bit-vec v0.6.2
[INFO] [stderr]    Compiling optional v0.5.0
[INFO] [stderr]    Compiling bit-matrix v0.6.0
[INFO] [stderr]    Compiling cfg v0.5.0
[INFO] [stderr]    Compiling gearley v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `nop`
[INFO] [stdout]    --> src/forest/node.rs:149:5
[INFO] [stdout]     |
[INFO] [stdout] 149 |     nop: NopRepr,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `nop`
[INFO] [stdout]    --> src/forest/node.rs:212:5
[INFO] [stdout]     |
[INFO] [stdout] 212 |     nop: u16,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 03s
[INFO] running `Command { std: "docker" "inspect" "fb0bd8390bae69de7f3e3515fae9727af0fa723f0758268ae689ad446ead4dff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb0bd8390bae69de7f3e3515fae9727af0fa723f0758268ae689ad446ead4dff", kill_on_drop: false }`
[INFO] [stdout] fb0bd8390bae69de7f3e3515fae9727af0fa723f0758268ae689ad446ead4dff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2b6c5034bdb0b80598f6678655fbb12b81d29e3b99e34d13c6ea8d1f046d718
[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" "f2b6c5034bdb0b80598f6678655fbb12b81d29e3b99e34d13c6ea8d1f046d718", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling internship v0.6.0
[INFO] [stdout] warning: field is never read: `nop`
[INFO] [stdout]    --> src/forest/node.rs:149:5
[INFO] [stdout]     |
[INFO] [stdout] 149 |     nop: NopRepr,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `nop`
[INFO] [stdout]    --> src/forest/node.rs:212:5
[INFO] [stdout]     |
[INFO] [stdout] 212 |     nop: u16,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_macros v0.7.24
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]    Compiling c_lexer v0.1.1
[INFO] [stderr]    Compiling gearley v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `nop`
[INFO] [stdout]    --> src/forest/node.rs:149:5
[INFO] [stdout]     |
[INFO] [stdout] 149 |     nop: NopRepr,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `nop`
[INFO] [stdout]    --> src/forest/node.rs:212:5
[INFO] [stdout]     |
[INFO] [stdout] 212 |     nop: u16,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 26.19s
[INFO] running `Command { std: "docker" "inspect" "f2b6c5034bdb0b80598f6678655fbb12b81d29e3b99e34d13c6ea8d1f046d718", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2b6c5034bdb0b80598f6678655fbb12b81d29e3b99e34d13c6ea8d1f046d718", kill_on_drop: false }`
[INFO] [stdout] f2b6c5034bdb0b80598f6678655fbb12b81d29e3b99e34d13c6ea8d1f046d718
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", 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] e9f644593ef8fc46668df531115aa80c7cfabb5251a16453a7f3bc31247fbc39
[INFO] running `Command { std: "docker" "start" "-a" "e9f644593ef8fc46668df531115aa80c7cfabb5251a16453a7f3bc31247fbc39", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `nop`
[INFO] [stderr]    --> src/forest/node.rs:149:5
[INFO] [stderr]     |
[INFO] [stderr] 149 |     nop: NopRepr,
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `nop`
[INFO] [stderr]    --> src/forest/node.rs:212:5
[INFO] [stderr]     |
[INFO] [stderr] 212 |     nop: u16,
[INFO] [stderr]     |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `nop`
[INFO] [stderr]    --> src/forest/node.rs:149:5
[INFO] [stderr]     |
[INFO] [stderr] 149 |     nop: NopRepr,
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `nop`
[INFO] [stderr]    --> src/forest/node.rs:212:5
[INFO] [stderr]     |
[INFO] [stderr] 212 |     nop: u16,
[INFO] [stderr]     |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/gearley-77c0434d62b31458
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test events::test_prediction_events ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/test_c-3bfc4d26630b3f1e
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test helpers::cartesian_product::test_cartesian_product ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/test_nulling-89fb9c06e46ba25a
[INFO] [stdout] test test_parse_c ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test helpers::cartesian_product::test_cartesian_product ... ok
[INFO] [stdout] test test_grammar_with_nulling_intermediate ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/test_recognizer-fc61153e12f3fd55
[INFO] [stdout] test test_trivial_grammar ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_recognize_nested ... ok
[INFO] [stdout] test helpers::cartesian_product::test_cartesian_product ... ok
[INFO] [stdout] test test_recognize_reset ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_sequence ... ok
[INFO] [stdout] test helpers::cartesian_product::test_cartesian_product ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/test_sequence-a7e166ab1dd2571f
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/test_serde-a9bd21a5390c98a0
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tests-8474f901d8938ef3
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test helpers::cartesian_product::test_cartesian_product ... ok
[INFO] [stdout] test test_ambiguous_arithmetic ... ok
[INFO] [stdout] test test_precedenced_arith ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests gearley
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e9f644593ef8fc46668df531115aa80c7cfabb5251a16453a7f3bc31247fbc39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9f644593ef8fc46668df531115aa80c7cfabb5251a16453a7f3bc31247fbc39", kill_on_drop: false }`
[INFO] [stdout] e9f644593ef8fc46668df531115aa80c7cfabb5251a16453a7f3bc31247fbc39