[INFO] updating cached repository https://github.com/jchoi5me/slam
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3cfe36f169c7eb7d7477305e983b47d09706a601
[INFO] checking jchoi5me/slam against try#1a608893c03d7722effeb0058e82770bd36b4b3c for pr-66504-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjchoi5me%2Fslam" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jchoi5me/slam on toolchain 1a608893c03d7722effeb0058e82770bd36b4b3c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jchoi5me/slam
[INFO] finished tweaking git repo https://github.com/jchoi5me/slam
[INFO] tweaked toml for git repo https://github.com/jchoi5me/slam written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/jchoi5me/slam already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "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] d66a141f228e66355f3ee0f91998efa7d30156409318fbdd2f07901805c63094
[INFO] running `"docker" "start" "-a" "d66a141f228e66355f3ee0f91998efa7d30156409318fbdd2f07901805c63094"`
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking slam v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `structopt::StructOpt`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use structopt::StructOpt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::PathBuf`
[INFO] [stderr]  --> src/clargs.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::path::PathBuf;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::ast::*`
[INFO] [stderr]  --> src/parser/mod.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::ast::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ast::*`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use ast::*;
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `clargs::*`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use clargs::*;
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `lexer::*`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use lexer::*;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `parser::*`
[INFO] [stderr]   --> src/main.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use parser::*;
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Cond`
[INFO] [stderr]  --> src/ast/mod.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | /     Cond {
[INFO] [stderr] 6 | |         cond: Box<Expr>,
[INFO] [stderr] 7 | |         if_true: Box<Expr>,
[INFO] [stderr] 8 | |         if_false: Box<Expr>,
[INFO] [stderr] 9 | |     },
[INFO] [stderr]   | |_____^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Func`
[INFO] [stderr]   --> src/ast/mod.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | /     Func {
[INFO] [stderr] 11 | |         param: Option<String>,
[INFO] [stderr] 12 | |         body: Box<Expr>,
[INFO] [stderr] 13 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Let`
[INFO] [stderr]   --> src/ast/mod.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | /     Let {
[INFO] [stderr] 15 | |         vals: HashMap<String, Box<Expr>>,
[INFO] [stderr] 16 | |         body: Box<Expr>,
[INFO] [stderr] 17 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Literal`
[INFO] [stderr]   --> src/ast/mod.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     Literal(Literal),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Var`
[INFO] [stderr]   --> src/ast/mod.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     Var(String),
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `StrLiteral`
[INFO] [stderr]   --> src/ast/mod.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     StrLiteral(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `IntLiteral`
[INFO] [stderr]   --> src/ast/mod.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     IntLiteral(i64),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BoolLiteral`
[INFO] [stderr]   --> src/ast/mod.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     BoolLiteral(bool),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/lexer/lexer.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn new(source: Box<String>) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `If`
[INFO] [stderr]   --> src/lexer/token.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     If,   // if
[INFO] [stderr]    |     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Then`
[INFO] [stderr]   --> src/lexer/token.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     Then, // then
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Else`
[INFO] [stderr]   --> src/lexer/token.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     Else, // else
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Let`
[INFO] [stderr]   --> src/lexer/token.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     Let,  // let
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `In`
[INFO] [stderr]   --> src/lexer/token.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     In,   // in
[INFO] [stderr]    |     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Assign`
[INFO] [stderr]   --> src/lexer/token.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     Assign, // =
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Comma`
[INFO] [stderr]   --> src/lexer/token.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     Comma,  // ,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Dot`
[INFO] [stderr]   --> src/lexer/token.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     Dot,    // .
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Lambda`
[INFO] [stderr]   --> src/lexer/token.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     Lambda, // \
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LParen`
[INFO] [stderr]   --> src/lexer/token.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     LParen, // (
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RParen`
[INFO] [stderr]   --> src/lexer/token.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     RParen, // )
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `structopt::StructOpt`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use structopt::StructOpt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::PathBuf`
[INFO] [stderr]  --> src/clargs.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::path::PathBuf;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::ast::*`
[INFO] [stderr]  --> src/parser/mod.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::ast::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ast::*`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use ast::*;
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `clargs::*`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use clargs::*;
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `lexer::*`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use lexer::*;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `parser::*`
[INFO] [stderr]   --> src/main.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use parser::*;
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Cond`
[INFO] [stderr]  --> src/ast/mod.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | /     Cond {
[INFO] [stderr] 6 | |         cond: Box<Expr>,
[INFO] [stderr] 7 | |         if_true: Box<Expr>,
[INFO] [stderr] 8 | |         if_false: Box<Expr>,
[INFO] [stderr] 9 | |     },
[INFO] [stderr]   | |_____^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Func`
[INFO] [stderr]   --> src/ast/mod.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | /     Func {
[INFO] [stderr] 11 | |         param: Option<String>,
[INFO] [stderr] 12 | |         body: Box<Expr>,
[INFO] [stderr] 13 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Let`
[INFO] [stderr]   --> src/ast/mod.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | /     Let {
[INFO] [stderr] 15 | |         vals: HashMap<String, Box<Expr>>,
[INFO] [stderr] 16 | |         body: Box<Expr>,
[INFO] [stderr] 17 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Literal`
[INFO] [stderr]   --> src/ast/mod.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     Literal(Literal),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Var`
[INFO] [stderr]   --> src/ast/mod.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     Var(String),
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `StrLiteral`
[INFO] [stderr]   --> src/ast/mod.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     StrLiteral(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `IntLiteral`
[INFO] [stderr]   --> src/ast/mod.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     IntLiteral(i64),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BoolLiteral`
[INFO] [stderr]   --> src/ast/mod.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     BoolLiteral(bool),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.48s
[INFO] running `"docker" "inspect" "d66a141f228e66355f3ee0f91998efa7d30156409318fbdd2f07901805c63094"`
[INFO] running `"docker" "rm" "-f" "d66a141f228e66355f3ee0f91998efa7d30156409318fbdd2f07901805c63094"`
[INFO] [stdout] d66a141f228e66355f3ee0f91998efa7d30156409318fbdd2f07901805c63094