[INFO] cloning repository https://github.com/nautilus-fuzz/nautilus
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nautilus-fuzz/nautilus" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnautilus-fuzz%2Fnautilus", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnautilus-fuzz%2Fnautilus'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a132369adf694620a8f8527359ce4a1b955cb393
[INFO] testing nautilus-fuzz/nautilus against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnautilus-fuzz%2Fnautilus" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nautilus-fuzz/nautilus on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-10/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/nautilus-fuzz/nautilus
[INFO] finished tweaking git repo https://github.com/nautilus-fuzz/nautilus
[INFO] tweaked toml for git repo https://github.com/nautilus-fuzz/nautilus written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/nautilus-fuzz/nautilus already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2d25a39ce68c0194492a3a4f7c08bbb3ce00cb048b9b6c62e57c19c67a01c19d
[INFO] running `Command { std: "docker" "start" "-a" "2d25a39ce68c0194492a3a4f7c08bbb3ce00cb048b9b6c62e57c19c67a01c19d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d25a39ce68c0194492a3a4f7c08bbb3ce00cb048b9b6c62e57c19c67a01c19d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d25a39ce68c0194492a3a4f7c08bbb3ce00cb048b9b6c62e57c19c67a01c19d", kill_on_drop: false }`
[INFO] [stdout] 2d25a39ce68c0194492a3a4f7c08bbb3ce00cb048b9b6c62e57c19c67a01c19d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 90138eedcec12b7572e930f8b83be2e168ff139c059247fc635c8a035e3b052f
[INFO] running `Command { std: "docker" "start" "-a" "90138eedcec12b7572e930f8b83be2e168ff139c059247fc635c8a035e3b052f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling smallvec v1.2.0
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling unindent v0.1.5
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling hash_by_ref v0.1.0
[INFO] [stderr]    Compiling argparse v0.2.2
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling pyo3 v0.10.1
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling parking_lot_core v0.7.2
[INFO] [stderr]    Compiling subprocess v0.2.4
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling parking_lot v0.10.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling regex v1.3.7
[INFO] [stderr]    Compiling regex_mutator v0.1.0 (/opt/rustwide/workdir/regex_mutator)
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling loaded_dice v0.2.1
[INFO] [stderr]    Compiling timeout-readwrite v0.3.1
[INFO] [stderr]    Compiling pyo3-derive-backend v0.10.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.12
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling ghost v0.1.1
[INFO] [stderr]    Compiling ctor v0.1.13
[INFO] [stderr]    Compiling snafu-derive v0.6.8
[INFO] [stderr]    Compiling inventory-impl v0.1.5
[INFO] [stderr]    Compiling pyo3cls v0.10.1
[INFO] [stderr]    Compiling inventory v0.1.5
[INFO] [stderr]    Compiling indoc-impl v0.3.4
[INFO] [stderr]    Compiling paste-impl v0.1.7
[INFO] [stderr]    Compiling indoc v0.3.4
[INFO] [stderr]    Compiling paste v0.1.7
[INFO] [stderr]    Compiling snafu v0.6.8
[INFO] [stderr]    Compiling forksrv v0.1.0 (/opt/rustwide/workdir/forksrv)
[INFO] [stderr]    Compiling serde_json v1.0.48
[INFO] [stderr]    Compiling ron v0.5.1
[INFO] [stderr]    Compiling grammartec v0.1.0 (/opt/rustwide/workdir/grammartec)
[INFO] [stdout] error[E0407]: method `replace_one` is not a member of trait `Step`
[INFO] [stdout]   --> grammartec/src/newtypes.rs:88:5
[INFO] [stdout]    |
[INFO] [stdout] 88 | /     fn replace_one(&mut self) -> Self {
[INFO] [stdout] 89 | |         return NodeID::from(0);
[INFO] [stdout] 90 | |     }
[INFO] [stdout]    | |_____^ not a member of trait `Step`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `replace_zero` is not a member of trait `Step`
[INFO] [stdout]   --> grammartec/src/newtypes.rs:91:5
[INFO] [stdout]    |
[INFO] [stdout] 91 | /     fn replace_zero(&mut self) -> Self {
[INFO] [stdout] 92 | |         return NodeID::from(1);
[INFO] [stdout] 93 | |     }
[INFO] [stdout]    | |_____^ not a member of trait `Step`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `add_one` is not a member of trait `Step`
[INFO] [stdout]   --> grammartec/src/newtypes.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 94 | /     fn add_one(&self) -> Self {
[INFO] [stdout] 95 | |         return self.add(1);
[INFO] [stdout] 96 | |     }
[INFO] [stdout]    | |_____^ not a member of trait `Step`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `sub_one` is not a member of trait `Step`
[INFO] [stdout]   --> grammartec/src/newtypes.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 97 | /     fn sub_one(&self) -> Self {
[INFO] [stdout] 98 | |         return NodeID(self.0 - 1);
[INFO] [stdout] 99 | |     }
[INFO] [stdout]    | |_____^ not a member of trait `Step`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `add_usize` is not a member of trait `Step`
[INFO] [stdout]    --> grammartec/src/newtypes.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 | /     fn add_usize(&self, n: usize) -> Option<Self> {
[INFO] [stdout] 101 | |         match self.0.checked_add(n) {
[INFO] [stdout] 102 | |             Some(x) => return Some(NodeID::from(x)),
[INFO] [stdout] 103 | |             None => return None,
[INFO] [stdout] 104 | |         }
[INFO] [stdout] 105 | |     }
[INFO] [stdout]     | |_____^ not a member of trait `Step`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0046]: not all trait items implemented, missing: `forward_checked`, `backward_checked`
[INFO] [stdout]   --> grammartec/src/newtypes.rs:79:1
[INFO] [stdout]    |
[INFO] [stdout] 79 | impl Step for NodeID {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ missing `forward_checked`, `backward_checked` in implementation
[INFO] [stdout]    |
[INFO] [stdout]    = help: implement the missing item: `fn forward_checked(_: Self, _: usize) -> std::option::Option<Self> { todo!() }`
[INFO] [stdout]    = help: implement the missing item: `fn backward_checked(_: Self, _: usize) -> std::option::Option<Self> { todo!() }`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]   --> grammartec/src/recursion_info.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use rand::Rng;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0046, E0407.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0046`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `grammartec`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "90138eedcec12b7572e930f8b83be2e168ff139c059247fc635c8a035e3b052f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90138eedcec12b7572e930f8b83be2e168ff139c059247fc635c8a035e3b052f", kill_on_drop: false }`
[INFO] [stdout] 90138eedcec12b7572e930f8b83be2e168ff139c059247fc635c8a035e3b052f