[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] checking nautilus-fuzz/nautilus against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnautilus-fuzz%2Fnautilus" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nautilus-fuzz/nautilus on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-5/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" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded indoc v0.3.4
[INFO] [stderr]   Downloaded paste v0.1.7
[INFO] [stderr]   Downloaded indoc-impl v0.3.4
[INFO] [stderr]   Downloaded ctor v0.1.13
[INFO] [stderr]   Downloaded argparse v0.2.2
[INFO] [stderr]   Downloaded timeout-readwrite v0.3.1
[INFO] [stderr]   Downloaded snafu v0.6.8
[INFO] [stderr]   Downloaded unindent v0.1.5
[INFO] [stderr]   Downloaded snafu-derive v0.6.8
[INFO] [stderr]   Downloaded pyo3 v0.10.1
[INFO] [stderr]   Downloaded pyo3cls v0.10.1
[INFO] [stderr]   Downloaded subprocess v0.2.4
[INFO] [stderr]   Downloaded paste-impl v0.1.7
[INFO] [stderr]   Downloaded pyo3-derive-backend v0.10.1
[INFO] [stderr]   Downloaded hash_by_ref v0.1.0
[INFO] [stderr]   Downloaded loaded_dice v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f7b3638e294bb464976f13a9dde1e0e2304e7e853a8cee6e998a6c0444cd0491
[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" "f7b3638e294bb464976f13a9dde1e0e2304e7e853a8cee6e998a6c0444cd0491", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7b3638e294bb464976f13a9dde1e0e2304e7e853a8cee6e998a6c0444cd0491", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7b3638e294bb464976f13a9dde1e0e2304e7e853a8cee6e998a6c0444cd0491", kill_on_drop: false }`
[INFO] [stdout] f7b3638e294bb464976f13a9dde1e0e2304e7e853a8cee6e998a6c0444cd0491
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 562c6860970cb76c662a7feac0f21d21e2ea0acbbba32e92ec5a93c84b5b8a03
[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" "562c6860970cb76c662a7feac0f21d21e2ea0acbbba32e92ec5a93c84b5b8a03", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]    Compiling unindent v0.1.5
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking smallvec v1.2.0
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking hash_by_ref v0.1.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term 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]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]    Compiling pyo3 v0.10.1
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking nix v0.17.0
[INFO] [stderr]     Checking subprocess v0.2.4
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking regex_mutator v0.1.0 (/opt/rustwide/workdir/regex_mutator)
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking loaded_dice v0.2.1
[INFO] [stderr]    Compiling pyo3-derive-backend v0.10.1
[INFO] [stderr]     Checking timeout-readwrite v0.3.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.12
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling snafu-derive v0.6.8
[INFO] [stderr]    Compiling ctor v0.1.13
[INFO] [stderr]    Compiling inventory-impl v0.1.5
[INFO] [stderr]    Compiling ghost v0.1.1
[INFO] [stderr]    Compiling pyo3cls v0.10.1
[INFO] [stderr]     Checking inventory v0.1.5
[INFO] [stderr]    Compiling paste-impl v0.1.7
[INFO] [stderr]    Compiling indoc-impl v0.3.4
[INFO] [stderr]     Checking paste v0.1.7
[INFO] [stderr]     Checking indoc v0.3.4
[INFO] [stderr]     Checking snafu v0.6.8
[INFO] [stderr]     Checking forksrv v0.1.0 (/opt/rustwide/workdir/forksrv)
[INFO] [stderr]     Checking ron v0.5.1
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking 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[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] warning: unused import: `NodeID`
[INFO] [stdout]    --> grammartec/src/mutator.rs:319:20
[INFO] [stdout]     |
[INFO] [stdout] 319 |     use newtypes::{NodeID, RuleID};
[INFO] [stdout]     |                    ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0200]: the trait `Step` requires an `unsafe impl` declaration
[INFO] [stdout]    --> grammartec/src/newtypes.rs:79:1
[INFO] [stdout]     |
[INFO] [stdout] 79  | / impl Step for NodeID {
[INFO] [stdout] 80  | |     fn steps_between(start: &Self, end: &Self) -> Option<usize> {
[INFO] [stdout] 81  | |         let start_i = start.to_i();
[INFO] [stdout] 82  | |         let end_i = end.to_i();
[INFO] [stdout] ...   |
[INFO] [stdout] 105 | |     }
[INFO] [stdout] 106 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0200]: the trait `Step` requires an `unsafe impl` declaration
[INFO] [stdout]    --> grammartec/src/newtypes.rs:79:1
[INFO] [stdout]     |
[INFO] [stdout] 79  | / impl Step for NodeID {
[INFO] [stdout] 80  | |     fn steps_between(start: &Self, end: &Self) -> Option<usize> {
[INFO] [stdout] 81  | |         let start_i = start.to_i();
[INFO] [stdout] 82  | |         let end_i = end.to_i();
[INFO] [stdout] ...   |
[INFO] [stdout] 105 | |     }
[INFO] [stdout] 106 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0200, E0407.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0200`.
[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: E0200, E0407.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0200`.
[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" "562c6860970cb76c662a7feac0f21d21e2ea0acbbba32e92ec5a93c84b5b8a03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "562c6860970cb76c662a7feac0f21d21e2ea0acbbba32e92ec5a93c84b5b8a03", kill_on_drop: false }`
[INFO] [stdout] 562c6860970cb76c662a7feac0f21d21e2ea0acbbba32e92ec5a93c84b5b8a03