[INFO] cloning repository https://github.com/shantanu28sharma/exp-browser [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shantanu28sharma/exp-browser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshantanu28sharma%2Fexp-browser", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshantanu28sharma%2Fexp-browser'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 80799aed64c2c4beb8e6635bf42ce6112c419c3e [INFO] checking shantanu28sharma/exp-browser against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshantanu28sharma%2Fexp-browser" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/shantanu28sharma/exp-browser on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/shantanu28sharma/exp-browser [INFO] finished tweaking git repo https://github.com/shantanu28sharma/exp-browser [INFO] tweaked toml for git repo https://github.com/shantanu28sharma/exp-browser written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/shantanu28sharma/exp-browser already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c29325b9c9ac0e48a65079b9d2e122670683fa25ddccee23f5a0a3331d5c5413 [INFO] running `Command { std: "docker" "start" "-a" "c29325b9c9ac0e48a65079b9d2e122670683fa25ddccee23f5a0a3331d5c5413", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c29325b9c9ac0e48a65079b9d2e122670683fa25ddccee23f5a0a3331d5c5413", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c29325b9c9ac0e48a65079b9d2e122670683fa25ddccee23f5a0a3331d5c5413", kill_on_drop: false }` [INFO] [stdout] c29325b9c9ac0e48a65079b9d2e122670683fa25ddccee23f5a0a3331d5c5413 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3b38fb65d9383c028f0867c5aebeea1d801f4f73afb56a12c0c9fa56d6bedcb0 [INFO] running `Command { std: "docker" "start" "-a" "3b38fb65d9383c028f0867c5aebeea1d801f4f73afb56a12c0c9fa56d6bedcb0", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Checking once_cell v1.5.2 [INFO] [stderr] Checking regex-syntax v0.6.22 [INFO] [stderr] Checking thread_local v1.1.3 [INFO] [stderr] Checking aho-corasick v0.7.15 [INFO] [stderr] Checking regex v1.4.3 [INFO] [stderr] Checking lalrpop-util v0.19.4 [INFO] [stderr] Checking browser v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Vec` is imported redundantly [INFO] [stdout] --> src/html/dom.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::vec::Vec; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Vec` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Vec` is imported redundantly [INFO] [stdout] --> src/html/dom.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::vec::Vec; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Vec` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Node` is never constructed [INFO] [stdout] --> src/html/dom.rs:6:12 [INFO] [stdout] | [INFO] [stdout] 6 | pub struct Node{ [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `NodeType` is never used [INFO] [stdout] --> src/html/dom.rs:11:10 [INFO] [stdout] | [INFO] [stdout] 11 | pub enum NodeType{ [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `NodeType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `TagNode` is never constructed [INFO] [stdout] --> src/html/dom.rs:17:12 [INFO] [stdout] | [INFO] [stdout] 17 | pub struct TagNode{ [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `TagNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Parser` is never constructed [INFO] [stdout] --> src/html/dom.rs:23:8 [INFO] [stdout] | [INFO] [stdout] 23 | struct Parser{ [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple associated items are never used [INFO] [stdout] --> src/html/dom.rs:28:13 [INFO] [stdout] | [INFO] [stdout] 27 | impl Parser { [INFO] [stdout] | ----------- associated items in this implementation [INFO] [stdout] 28 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 31 | pub fn parse(&mut self, input: &str) -> Node { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 52 | fn get_tag_info(&mut self, input: &Vec) -> (String, BTreeMap){ [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 71 | fn get_children(&mut self, input: &Vec, _name: &str) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 96 | fn consume_zero_plus(&mut self, input: &Vec, chars: &Vec) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 110 | fn match_until(&mut self, input: &Vec, chars: &Vec) -> String { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 124 | fn consume_option(&mut self, input: &Vec, chr: u8) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 129 | fn consume(&mut self, input: &Vec, chr: u8){ [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `node` is never read [INFO] [stdout] --> src/html/dom.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 6 | pub struct Node{ [INFO] [stdout] | ---- field in this struct [INFO] [stdout] 7 | node: NodeType [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/html/dom.rs:12:10 [INFO] [stdout] | [INFO] [stdout] 12 | Text(String), [INFO] [stdout] | ---- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 12 | Text(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/html/dom.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | Tag(TagNode) [INFO] [stdout] | --- ^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 13 | Tag(()) [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `name`, `children`, and `attr` are never read [INFO] [stdout] --> src/html/dom.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 17 | pub struct TagNode{ [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] 18 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 19 | children: Vec, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 20 | attr: BTreeMap [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `TagNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `consume_option` is never used [INFO] [stdout] --> src/html/dom.rs:124:8 [INFO] [stdout] | [INFO] [stdout] 27 | impl Parser { [INFO] [stdout] | ----------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 124 | fn consume_option(&mut self, input: &Vec, chr: u8) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.45s [INFO] running `Command { std: "docker" "inspect" "3b38fb65d9383c028f0867c5aebeea1d801f4f73afb56a12c0c9fa56d6bedcb0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3b38fb65d9383c028f0867c5aebeea1d801f4f73afb56a12c0c9fa56d6bedcb0", kill_on_drop: false }` [INFO] [stdout] 3b38fb65d9383c028f0867c5aebeea1d801f4f73afb56a12c0c9fa56d6bedcb0 [INFO] checking shantanu28sharma/exp-browser against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshantanu28sharma%2Fexp-browser" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/shantanu28sharma/exp-browser on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/shantanu28sharma/exp-browser [INFO] finished tweaking git repo https://github.com/shantanu28sharma/exp-browser [INFO] tweaked toml for git repo https://github.com/shantanu28sharma/exp-browser written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/shantanu28sharma/exp-browser already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0d1b2fba8f7631e43d16f8185537e8c87b2125ca84b5ecf0b7b7c4e4d11803ed [INFO] running `Command { std: "docker" "start" "-a" "0d1b2fba8f7631e43d16f8185537e8c87b2125ca84b5ecf0b7b7c4e4d11803ed", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0d1b2fba8f7631e43d16f8185537e8c87b2125ca84b5ecf0b7b7c4e4d11803ed", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0d1b2fba8f7631e43d16f8185537e8c87b2125ca84b5ecf0b7b7c4e4d11803ed", kill_on_drop: false }` [INFO] [stdout] 0d1b2fba8f7631e43d16f8185537e8c87b2125ca84b5ecf0b7b7c4e4d11803ed [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c5cefe12c918a9c1a23c4e1d079e002e0503b3af24f077e6eb6e09a0109db8a3 [INFO] running `Command { std: "docker" "start" "-a" "c5cefe12c918a9c1a23c4e1d079e002e0503b3af24f077e6eb6e09a0109db8a3", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Checking once_cell v1.5.2 [INFO] [stderr] Checking regex-syntax v0.6.22 [INFO] [stderr] Checking thread_local v1.1.3 [INFO] [stderr] Checking aho-corasick v0.7.15 [INFO] [stderr] Checking regex v1.4.3 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.4.3/src/exec.rs:841:13 [INFO] [stdout] | [INFO] [stdout] 841 | / match dfa::Fsm::reverse( [INFO] [stdout] 842 | | &self.ro.dfa_reverse, [INFO] [stdout] 843 | | self.cache.value(), [INFO] [stdout] 844 | | false, [INFO] [stdout] ... | [INFO] [stdout] 855 | | Quit => return Some(Quit), [INFO] [stdout] 856 | | }; [INFO] [stdout] | |_____________^ cannot infer type [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `regex` (lib) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "c5cefe12c918a9c1a23c4e1d079e002e0503b3af24f077e6eb6e09a0109db8a3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c5cefe12c918a9c1a23c4e1d079e002e0503b3af24f077e6eb6e09a0109db8a3", kill_on_drop: false }` [INFO] [stdout] c5cefe12c918a9c1a23c4e1d079e002e0503b3af24f077e6eb6e09a0109db8a3