[INFO] cloning repository https://github.com/meganehouser/loris
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/meganehouser/loris" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmeganehouser%2Floris"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmeganehouser%2Floris'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2090eea589d09b8ea1476b0b490f281e91badb36
[INFO] checking meganehouser/loris against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmeganehouser%2Floris" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/meganehouser/loris on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/meganehouser/loris
[INFO] finished tweaking git repo https://github.com/meganehouser/loris
[INFO] tweaked toml for git repo https://github.com/meganehouser/loris written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/meganehouser/loris already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a8289be09010f364a273179052096c541ec160bcca5579951159fab2cca2fffb
[INFO] running `"docker" "start" "-a" "a8289be09010f364a273179052096c541ec160bcca5579951159fab2cca2fffb"`
[INFO] [stderr]    Compiling cc v1.0.18
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]     Checking cfg-if v0.1.4
[INFO] [stderr]     Checking lazy_static v1.0.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.9
[INFO] [stderr]    Compiling quote v0.6.5
[INFO] [stderr]     Checking users v0.7.0
[INFO] [stderr]    Compiling syn v0.14.7
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]     Checking failure v0.1.2
[INFO] [stderr]     Checking loris v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Error`
[INFO] [stderr]  --> src/parser.rs:5:15
[INFO] [stderr]   |
[INFO] [stderr] 5 | use failure::{Error, Fail};
[INFO] [stderr]   |               ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/token.rs:4:1
[INFO] [stderr]    |
[INFO] [stderr] 4  | / lazy_static! {
[INFO] [stderr] 5  | |     static ref KEYWORDS: HashMap<&'static str, Token> ={
[INFO] [stderr] 6  | |         let mut keywords = HashMap::new();
[INFO] [stderr] 7  | |         keywords.insert("let", Token::Let);
[INFO] [stderr] ...  |
[INFO] [stderr] 15 | |     };
[INFO] [stderr] 16 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]  --> src/lexer.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | / lazy_static! {
[INFO] [stderr] 6 | |     static ref SKIP_CHARS: Vec<char> = {
[INFO] [stderr] 7 | |         vec![' ', '\t', '\n', '\r']
[INFO] [stderr] 8 | |     };
[INFO] [stderr] 9 | | }
[INFO] [stderr]   | |_^
[INFO] [stderr]   |
[INFO] [stderr]   = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Error`
[INFO] [stderr]  --> src/parser.rs:5:15
[INFO] [stderr]   |
[INFO] [stderr] 5 | use failure::{Error, Fail};
[INFO] [stderr]   |               ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/token.rs:4:1
[INFO] [stderr]    |
[INFO] [stderr] 4  | / lazy_static! {
[INFO] [stderr] 5  | |     static ref KEYWORDS: HashMap<&'static str, Token> ={
[INFO] [stderr] 6  | |         let mut keywords = HashMap::new();
[INFO] [stderr] 7  | |         keywords.insert("let", Token::Let);
[INFO] [stderr] ...  |
[INFO] [stderr] 15 | |     };
[INFO] [stderr] 16 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]  --> src/lexer.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | / lazy_static! {
[INFO] [stderr] 6 | |     static ref SKIP_CHARS: Vec<char> = {
[INFO] [stderr] 7 | |         vec![' ', '\t', '\n', '\r']
[INFO] [stderr] 8 | |     };
[INFO] [stderr] 9 | | }
[INFO] [stderr]   | |_^
[INFO] [stderr]   |
[INFO] [stderr]   = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning[E0170]: pattern binding `Illegal` is named the same as one of the variants of the type `ast::Statement`
[INFO] [stderr]   --> src/ast.rs:42:13
[INFO] [stderr]    |
[INFO] [stderr] 42 |             Illegal => write!(f, "Illegal()"),
[INFO] [stderr]    |             ^^^^^^^ help: to match on the variant, qualify the path: `ast::Statement::Illegal`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bindings_with_variant_name)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> src/ast.rs:39:24
[INFO] [stderr]    |
[INFO] [stderr] 39 |                 value: v,
[INFO] [stderr]    |                        ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> src/ast.rs:41:50
[INFO] [stderr]    |
[INFO] [stderr] 41 |             Statement::Return { token: t, value: v } => write!(f, "Return(token:{}, value:)", t), //, v)
[INFO] [stderr]    |                                                  ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `Illegal`
[INFO] [stderr]   --> src/ast.rs:42:13
[INFO] [stderr]    |
[INFO] [stderr] 42 |             Illegal => write!(f, "Illegal()"),
[INFO] [stderr]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_Illegal`
[INFO] [stderr] 
[INFO] [stderr] warning[E0170]: pattern binding `Illegal` is named the same as one of the variants of the type `ast::Statement`
[INFO] [stderr]   --> src/ast.rs:42:13
[INFO] [stderr]    |
[INFO] [stderr] 42 |             Illegal => write!(f, "Illegal()"),
[INFO] [stderr]    |             ^^^^^^^ help: to match on the variant, qualify the path: `ast::Statement::Illegal`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bindings_with_variant_name)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> src/ast.rs:39:24
[INFO] [stderr]    |
[INFO] [stderr] 39 |                 value: v,
[INFO] [stderr]    |                        ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> src/ast.rs:41:50
[INFO] [stderr]    |
[INFO] [stderr] 41 |             Statement::Return { token: t, value: v } => write!(f, "Return(token:{}, value:)", t), //, v)
[INFO] [stderr]    |                                                  ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `Illegal`
[INFO] [stderr]   --> src/ast.rs:42:13
[INFO] [stderr]    |
[INFO] [stderr] 42 |             Illegal => write!(f, "Illegal()"),
[INFO] [stderr]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_Illegal`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Program`
[INFO] [stderr]  --> src/ast.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Program {
[INFO] [stderr]   |            ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]  --> src/ast.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub fn new() -> Program {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Let`
[INFO] [stderr]   --> src/ast.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | /     Let {
[INFO] [stderr] 17 | |         token: token::Token,
[INFO] [stderr] 18 | |         name: String,
[INFO] [stderr] 19 | |         value: Option<Box<Expression>>,
[INFO] [stderr] 20 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Return`
[INFO] [stderr]   --> src/ast.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | /     Return {
[INFO] [stderr] 22 | |         token: token::Token,
[INFO] [stderr] 23 | |         value: Option<Box<Expression>>,
[INFO] [stderr] 24 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Illegal`
[INFO] [stderr]   --> src/ast.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     Illegal,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Identifier`
[INFO] [stderr]   --> src/ast.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     Identifier { token: token::Token, value: String },
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Parser`
[INFO] [stderr]   --> src/parser.rs:14:12
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub struct Parser<'a> {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/parser.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     pub fn new(lxr: Lexer<'a>) -> Parser<'a> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `next_token`
[INFO] [stderr]   --> src/parser.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub fn next_token(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_program`
[INFO] [stderr]   --> src/parser.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn parse_program(&mut self) -> ast::Program {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_statement`
[INFO] [stderr]   --> src/parser.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn parse_statement(&mut self) -> ast::Statement {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `push_err`
[INFO] [stderr]   --> src/parser.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn push_err(&mut self, expected: Token) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_let_statement`
[INFO] [stderr]   --> src/parser.rs:66:5
[INFO] [stderr]    |
[INFO] [stderr] 66 |     fn parse_let_statement(&mut self) -> ast::Statement {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_return_statement`
[INFO] [stderr]   --> src/parser.rs:95:5
[INFO] [stderr]    |
[INFO] [stderr] 95 |     fn parse_return_statement(&mut self) -> ast::Statement {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Illegal` should have a snake case name
[INFO] [stderr]   --> src/ast.rs:42:13
[INFO] [stderr]    |
[INFO] [stderr] 42 |             Illegal => write!(f, "Illegal()"),
[INFO] [stderr]    |             ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `illegal`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Identifier`
[INFO] [stderr]   --> src/ast.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     Identifier { token: token::Token, value: String },
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Illegal` should have a snake case name
[INFO] [stderr]   --> src/ast.rs:42:13
[INFO] [stderr]    |
[INFO] [stderr] 42 |             Illegal => write!(f, "Illegal()"),
[INFO] [stderr]    |             ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `illegal`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 23 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0170`.
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0170`.
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.53s
[INFO] running `"docker" "inspect" "a8289be09010f364a273179052096c541ec160bcca5579951159fab2cca2fffb"`
[INFO] running `"docker" "rm" "-f" "a8289be09010f364a273179052096c541ec160bcca5579951159fab2cca2fffb"`
[INFO] [stdout] a8289be09010f364a273179052096c541ec160bcca5579951159fab2cca2fffb