[INFO] updating cached repository stevesweetney/rox
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/stevesweetney/rox
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/stevesweetney/rox" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/stevesweetney/rox"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/stevesweetney/rox'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/stevesweetney/rox" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/stevesweetney/rox"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/stevesweetney/rox'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 12257363600a406b7eaba3651f1d1d1e42445aeb
[INFO] sha for GitHub repo stevesweetney/rox: 12257363600a406b7eaba3651f1d1d1e42445aeb
[INFO] validating manifest of stevesweetney/rox on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of stevesweetney/rox on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing stevesweetney/rox
[INFO] finished frobbing stevesweetney/rox
[INFO] frobbed toml for stevesweetney/rox written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/stevesweetney/rox/Cargo.toml
[INFO] started frobbing stevesweetney/rox
[INFO] finished frobbing stevesweetney/rox
[INFO] frobbed toml for stevesweetney/rox written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/stevesweetney/rox/Cargo.toml
[INFO] crate stevesweetney/rox already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking stevesweetney/rox against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-2/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/stevesweetney/rox:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 6cb7171f44534075cb8430d133cd0536faf8faeb409e466487a256a919f9285e
[INFO] running `"docker" "start" "-a" "6cb7171f44534075cb8430d133cd0536faf8faeb409e466487a256a919f9285e"`
[INFO] [stderr]     Checking rox v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: enum is never used: `Expr`
[INFO] [stderr]  --> src/expr.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | enum Expr {
[INFO] [stderr]   | ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `LiteralValue`
[INFO] [stderr]   --> src/expr.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | enum LiteralValue {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_ast`
[INFO] [stderr]   --> src/expr.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn print_ast(e: &Expr) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parenthesize`
[INFO] [stderr]   --> src/expr.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn parenthesize(name: &str, exprs: &[&Expr]) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `And`
[INFO] [stderr]   --> src/token.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     And,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Class`
[INFO] [stderr]   --> src/token.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     Class,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Else`
[INFO] [stderr]   --> src/token.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     Else,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `False`
[INFO] [stderr]   --> src/token.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     False,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Expr`
[INFO] [stderr]  --> src/expr.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | enum Expr {
[INFO] [stderr]   | ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `LiteralValue`
[INFO] [stderr]   --> src/expr.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | enum LiteralValue {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_ast`
[INFO] [stderr]   --> src/expr.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn print_ast(e: &Expr) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parenthesize`
[INFO] [stderr]   --> src/expr.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn parenthesize(name: &str, exprs: &[&Expr]) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `And`
[INFO] [stderr]   --> src/token.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     And,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Class`
[INFO] [stderr]   --> src/token.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     Class,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Else`
[INFO] [stderr]   --> src/token.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     Else,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `False`
[INFO] [stderr]   --> src/token.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     False,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `"docker" "inspect" "6cb7171f44534075cb8430d133cd0536faf8faeb409e466487a256a919f9285e"`
[INFO] running `"docker" "rm" "-f" "6cb7171f44534075cb8430d133cd0536faf8faeb409e466487a256a919f9285e"`
[INFO] [stdout] 6cb7171f44534075cb8430d133cd0536faf8faeb409e466487a256a919f9285e