[INFO] cloning repository https://github.com/darthsteedious/better_json_generator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/darthsteedious/better_json_generator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdarthsteedious%2Fbetter_json_generator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdarthsteedious%2Fbetter_json_generator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3d8e7ee1e909d5b77e3db06d7839426ad62f2706
[INFO] checking darthsteedious/better_json_generator against beta-2020-07-24 for pr-75494-beta
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdarthsteedious%2Fbetter_json_generator" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/darthsteedious/better_json_generator on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/darthsteedious/better_json_generator
[INFO] finished tweaking git repo https://github.com/darthsteedious/better_json_generator
[INFO] tweaked toml for git repo https://github.com/darthsteedious/better_json_generator written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/darthsteedious/better_json_generator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ce02919c15f6a265cbeb902714b1c4cbb62ee8c34102948aff0436a08192c79d
[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" "ce02919c15f6a265cbeb902714b1c4cbb62ee8c34102948aff0436a08192c79d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce02919c15f6a265cbeb902714b1c4cbb62ee8c34102948aff0436a08192c79d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce02919c15f6a265cbeb902714b1c4cbb62ee8c34102948aff0436a08192c79d", kill_on_drop: false }`
[INFO] [stdout] ce02919c15f6a265cbeb902714b1c4cbb62ee8c34102948aff0436a08192c79d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fff91a4fdf80c58f3ee0f4d206383af7ce659f8799f293f8b42b14a59a8ffd2c
[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" "fff91a4fdf80c58f3ee0f4d206383af7ce659f8799f293f8b42b14a59a8ffd2c", kill_on_drop: false }`
[INFO] [stderr]     Checking better_json_generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find value `Rando` in this scope
[INFO] [stdout]  --> src/tags/mod.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     Rando
[INFO] [stdout]   |     ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `JsonValue`, `name::NameExpression`
[INFO] [stdout]  --> src/ast/property_assignment.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{Expression, JsonValue, name::NameExpression, visitor::ExpressionVisitor};
[INFO] [stdout]   |                         ^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]  --> src/parsing/errors.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Expression`
[INFO] [stdout]  --> src/parsing/object_expr.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Expression,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parse`
[INFO] [stdout]   --> src/parsing/object_expr.rs:11:35
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::parsing::{ParseResult, parse};
[INFO] [stdout]    |                                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `*`
[INFO] [stdout]  --> src/parsing/mod.rs:5:30
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::ast::{Expression, *};
[INFO] [stdout]   |                              ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `FromIterator`, `Iterator`
[INFO] [stdout]  --> src/parsing/mod.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::iter::{Iterator, FromIterator};
[INFO] [stdout]   |                 ^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::slice::IterMut`
[INFO] [stdout]  --> src/parsing/mod.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::slice::IterMut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ast::json_object::JsonObjectExpression`
[INFO] [stdout]   --> src/parsing/mod.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::ast::json_object::JsonObjectExpression;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ast::property_assignment::PropertyAssignmentExpression`
[INFO] [stdout]   --> src/parsing/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::ast::property_assignment::PropertyAssignmentExpression;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ast::whitespace::WhitespaceExpression`
[INFO] [stdout]   --> src/parsing/mod.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use crate::ast::whitespace::WhitespaceExpression;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ast::comma::CommaExpression`
[INFO] [stdout]   --> src/parsing/mod.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use crate::ast::comma::CommaExpression;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ast::json_array::JsonArrayExpression`
[INFO] [stdout]   --> src/parsing/mod.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use crate::ast::json_array::JsonArrayExpression;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Deref`
[INFO] [stdout]  --> src/tokens/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Deref;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::tokens::Token::Whitespace`
[INFO] [stdout]  --> src/tokens/mod.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::tokens::Token::Whitespace;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::VecDeque`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::collections::VecDeque;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `Rando` in this scope
[INFO] [stdout]  --> src/tags/mod.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     Rando
[INFO] [stdout]   |     ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `JsonValue`, `name::NameExpression`
[INFO] [stdout]  --> src/ast/property_assignment.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{Expression, JsonValue, name::NameExpression, visitor::ExpressionVisitor};
[INFO] [stdout]   |                         ^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::parsing::ParseResult`
[INFO] [stdout]   --> src/ast/mod.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     use crate::parsing::ParseResult;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]  --> src/parsing/errors.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Expression`
[INFO] [stdout]  --> src/parsing/object_expr.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Expression,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parse`
[INFO] [stdout]   --> src/parsing/object_expr.rs:11:35
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::parsing::{ParseResult, parse};
[INFO] [stdout]    |                                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `*`
[INFO] [stdout]  --> src/parsing/mod.rs:5:30
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::ast::{Expression, *};
[INFO] [stdout]   |                              ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `FromIterator`, `Iterator`
[INFO] [stdout]  --> src/parsing/mod.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::iter::{Iterator, FromIterator};
[INFO] [stdout]   |                 ^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::slice::IterMut`
[INFO] [stdout]  --> src/parsing/mod.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::slice::IterMut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ast::json_object::JsonObjectExpression`
[INFO] [stdout]   --> src/parsing/mod.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::ast::json_object::JsonObjectExpression;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ast::property_assignment::PropertyAssignmentExpression`
[INFO] [stdout]   --> src/parsing/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::ast::property_assignment::PropertyAssignmentExpression;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ast::whitespace::WhitespaceExpression`
[INFO] [stdout]   --> src/parsing/mod.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use crate::ast::whitespace::WhitespaceExpression;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ast::comma::CommaExpression`
[INFO] [stdout]   --> src/parsing/mod.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use crate::ast::comma::CommaExpression;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ast::json_array::JsonArrayExpression`
[INFO] [stdout]   --> src/parsing/mod.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use crate::ast::json_array::JsonArrayExpression;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]    --> src/parsing/mod.rs:255:9
[INFO] [stdout]     |
[INFO] [stdout] 255 |     use std::borrow::Borrow;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::any::TypeId`
[INFO] [stdout]    --> src/parsing/mod.rs:256:9
[INFO] [stdout]     |
[INFO] [stdout] 256 |     use std::any::TypeId;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Deref`
[INFO] [stdout]  --> src/tokens/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Deref;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::tokens::Token::Whitespace`
[INFO] [stdout]  --> src/tokens/mod.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::tokens::Token::Whitespace;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::VecDeque`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::collections::VecDeque;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Expression`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Expression,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `better_json_generator`.
[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] [stdout] warning: unused import: `Expression`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Expression,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "fff91a4fdf80c58f3ee0f4d206383af7ce659f8799f293f8b42b14a59a8ffd2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fff91a4fdf80c58f3ee0f4d206383af7ce659f8799f293f8b42b14a59a8ffd2c", kill_on_drop: false }`
[INFO] [stdout] fff91a4fdf80c58f3ee0f4d206383af7ce659f8799f293f8b42b14a59a8ffd2c
