[INFO] cloning repository https://github.com/K-C-DaCosta/walker [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/K-C-DaCosta/walker" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FK-C-DaCosta%2Fwalker", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FK-C-DaCosta%2Fwalker'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7755a352b27f035629c6da2c87cdb3016fcc8eb0 [INFO] checking K-C-DaCosta/walker against master#bbefc9837f4157cc09ed60e6d7b21e345d582dd9 for pr-114571-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FK-C-DaCosta%2Fwalker" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/K-C-DaCosta/walker on toolchain bbefc9837f4157cc09ed60e6d7b21e345d582dd9 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bbefc9837f4157cc09ed60e6d7b21e345d582dd9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/K-C-DaCosta/walker [INFO] finished tweaking git repo https://github.com/K-C-DaCosta/walker [INFO] tweaked toml for git repo https://github.com/K-C-DaCosta/walker written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/K-C-DaCosta/walker 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" "+bbefc9837f4157cc09ed60e6d7b21e345d582dd9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [ERROR] this task or one of its parent failed! [ERROR] no output for 300 seconds [ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace. [INFO] checking K-C-DaCosta/walker against try#2399cef65c47f346b5fa9df51f48df0acd4a9d85 for pr-114571-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FK-C-DaCosta%2Fwalker" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/K-C-DaCosta/walker on toolchain 2399cef65c47f346b5fa9df51f48df0acd4a9d85 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2399cef65c47f346b5fa9df51f48df0acd4a9d85" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/K-C-DaCosta/walker [INFO] finished tweaking git repo https://github.com/K-C-DaCosta/walker [INFO] tweaked toml for git repo https://github.com/K-C-DaCosta/walker written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/K-C-DaCosta/walker 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" "+2399cef65c47f346b5fa9df51f48df0acd4a9d85" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+2399cef65c47f346b5fa9df51f48df0acd4a9d85" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a231891803ea8dbbfed692589bf69de9e1cc8ee5eab13e3199b351fa5be0c6ba [INFO] running `Command { std: "docker" "start" "-a" "a231891803ea8dbbfed692589bf69de9e1cc8ee5eab13e3199b351fa5be0c6ba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a231891803ea8dbbfed692589bf69de9e1cc8ee5eab13e3199b351fa5be0c6ba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a231891803ea8dbbfed692589bf69de9e1cc8ee5eab13e3199b351fa5be0c6ba", kill_on_drop: false }` [INFO] [stdout] a231891803ea8dbbfed692589bf69de9e1cc8ee5eab13e3199b351fa5be0c6ba [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+2399cef65c47f346b5fa9df51f48df0acd4a9d85" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3ffe011c09f7d8d70b334d78ef736366964d012e498af7a1cd089c6fcde6f9cc [INFO] running `Command { std: "docker" "start" "-a" "3ffe011c09f7d8d70b334d78ef736366964d012e498af7a1cd089c6fcde6f9cc", kill_on_drop: false }` [INFO] [stderr] Checking walker v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> src/lexer/tests.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::num` [INFO] [stdout] --> src/lib.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::num; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::num` [INFO] [stdout] --> src/lib.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::num; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Add`, `Sub`, `Mul`, `Div`, and `LiteralInteger` are never constructed [INFO] [stdout] --> src/lib.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 9 | enum Ast<'a> { [INFO] [stdout] | --- variants in this enum [INFO] [stdout] 10 | Add { lhs: &'a Ast<'a>, rhs: &'a Ast<'a> }, [INFO] [stdout] | ^^^ [INFO] [stdout] 11 | Sub { lhs: &'a Ast<'a>, rhs: &'a Ast<'a> }, [INFO] [stdout] | ^^^ [INFO] [stdout] 12 | Mul { lhs: &'a Ast<'a>, rhs: &'a Ast<'a> }, [INFO] [stdout] | ^^^ [INFO] [stdout] 13 | Div { lhs: &'a Ast<'a>, rhs: &'a Ast<'a> }, [INFO] [stdout] | ^^^ [INFO] [stdout] 14 | LiteralInteger(i64), [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Ast` has a derived impl for the trait `Clone`, 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: fields `position_lbound` and `position_ubound` are never read [INFO] [stdout] --> src/lexer/iterators.rs:20:5 [INFO] [stdout] | [INFO] [stdout] 19 | pub struct HistoryState { [INFO] [stdout] | ------------ fields in this struct [INFO] [stdout] 20 | position_lbound: *const History<16,usize>, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] 21 | position_ubound: *const History<16,usize>, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `HistoryState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `position_ubound` and `position_lbound` are never used [INFO] [stdout] --> src/lexer/iterators.rs:24:12 [INFO] [stdout] | [INFO] [stdout] 23 | impl HistoryState { [INFO] [stdout] | ----------------- methods in this implementation [INFO] [stdout] 24 | pub fn position_ubound(&self) -> &History<16,usize> { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 27 | pub fn position_lbound(&self) -> &History<16,usize> { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `start_at`, `len`, `clear_left`, and `is_empty` are never used [INFO] [stdout] --> src/lexer/range.rs:15:12 [INFO] [stdout] | [INFO] [stdout] 7 | impl MyRange { [INFO] [stdout] | ------------ associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 15 | pub fn start_at(lbound: usize) -> Self { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 32 | pub fn len(&self) -> usize { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 36 | pub fn clear_left(&mut self) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 44 | pub fn is_empty(&self) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Add`, `Sub`, `Mul`, `Div`, and `LiteralInteger` are never constructed [INFO] [stdout] --> src/lib.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 9 | enum Ast<'a> { [INFO] [stdout] | --- variants in this enum [INFO] [stdout] 10 | Add { lhs: &'a Ast<'a>, rhs: &'a Ast<'a> }, [INFO] [stdout] | ^^^ [INFO] [stdout] 11 | Sub { lhs: &'a Ast<'a>, rhs: &'a Ast<'a> }, [INFO] [stdout] | ^^^ [INFO] [stdout] 12 | Mul { lhs: &'a Ast<'a>, rhs: &'a Ast<'a> }, [INFO] [stdout] | ^^^ [INFO] [stdout] 13 | Div { lhs: &'a Ast<'a>, rhs: &'a Ast<'a> }, [INFO] [stdout] | ^^^ [INFO] [stdout] 14 | LiteralInteger(i64), [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Ast` has a derived impl for the trait `Clone`, 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: fields `position_lbound` and `position_ubound` are never read [INFO] [stdout] --> src/lexer/iterators.rs:20:5 [INFO] [stdout] | [INFO] [stdout] 19 | pub struct HistoryState { [INFO] [stdout] | ------------ fields in this struct [INFO] [stdout] 20 | position_lbound: *const History<16,usize>, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] 21 | position_ubound: *const History<16,usize>, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `HistoryState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `position_ubound` and `position_lbound` are never used [INFO] [stdout] --> src/lexer/iterators.rs:24:12 [INFO] [stdout] | [INFO] [stdout] 23 | impl HistoryState { [INFO] [stdout] | ----------------- methods in this implementation [INFO] [stdout] 24 | pub fn position_ubound(&self) -> &History<16,usize> { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 27 | pub fn position_lbound(&self) -> &History<16,usize> { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `start_at`, `len`, `clear_left`, and `is_empty` are never used [INFO] [stdout] --> src/lexer/range.rs:15:12 [INFO] [stdout] | [INFO] [stdout] 7 | impl MyRange { [INFO] [stdout] | ------------ associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 15 | pub fn start_at(lbound: usize) -> Self { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 32 | pub fn len(&self) -> usize { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 36 | pub fn clear_left(&mut self) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 44 | pub fn is_empty(&self) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.08s [INFO] running `Command { std: "docker" "inspect" "3ffe011c09f7d8d70b334d78ef736366964d012e498af7a1cd089c6fcde6f9cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3ffe011c09f7d8d70b334d78ef736366964d012e498af7a1cd089c6fcde6f9cc", kill_on_drop: false }` [INFO] [stdout] 3ffe011c09f7d8d70b334d78ef736366964d012e498af7a1cd089c6fcde6f9cc