[INFO] updating cached repository jparoz/huck
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jparoz/huck
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jparoz/huck" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/jparoz/huck"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/jparoz/huck'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jparoz/huck" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/jparoz/huck"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/jparoz/huck'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f6107d31c3b5a8286a3effdfbfde6df6569270d7
[INFO] sha for GitHub repo jparoz/huck: f6107d31c3b5a8286a3effdfbfde6df6569270d7
[INFO] validating manifest of jparoz/huck on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jparoz/huck on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jparoz/huck
[INFO] finished frobbing jparoz/huck
[INFO] frobbed toml for jparoz/huck written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/jparoz/huck/Cargo.toml
[INFO] started frobbing jparoz/huck
[INFO] finished frobbing jparoz/huck
[INFO] frobbed toml for jparoz/huck written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/jparoz/huck/Cargo.toml
[INFO] crate jparoz/huck already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking jparoz/huck against master#e305df1846a6d985315917ae0c81b74af8b4e641 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-6/master#e305df1846a6d985315917ae0c81b74af8b4e641:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/jparoz/huck:/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" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 91bd359d7e9e6f65dc7a1ff865440b5a7f6d9dd5d7d16fcf8c4e37c8dd8c823e
[INFO] running `"docker" "start" "-a" "91bd359d7e9e6f65dc7a1ff865440b5a7f6d9dd5d7d16fcf8c4e37c8dd8c823e"`
[INFO] [stderr]     Checking huck v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `TokenType` is imported redundantly
[INFO] [stderr]    --> src/lex.rs:220:13
[INFO] [stderr]     |
[INFO] [stderr] 16  | / pub enum TokenType {
[INFO] [stderr] 17  | |     Module,
[INFO] [stderr] 18  | |     Class,
[INFO] [stderr] 19  | |     Type,
[INFO] [stderr] ...   |
[INFO] [stderr] 41  | |     Hash,
[INFO] [stderr] 42  | | }
[INFO] [stderr]     | |_- the item `TokenType` is already defined here
[INFO] [stderr] ...
[INFO] [stderr] 220 |           use lex::TokenType;
[INFO] [stderr]     |               ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `TokenType` is imported redundantly
[INFO] [stderr]    --> src/lex.rs:220:13
[INFO] [stderr]     |
[INFO] [stderr] 16  | / pub enum TokenType {
[INFO] [stderr] 17  | |     Module,
[INFO] [stderr] 18  | |     Class,
[INFO] [stderr] 19  | |     Type,
[INFO] [stderr] ...   |
[INFO] [stderr] 41  | |     Hash,
[INFO] [stderr] 42  | | }
[INFO] [stderr]     | |_- the item `TokenType` is already defined here
[INFO] [stderr] ...
[INFO] [stderr] 220 |           use lex::TokenType;
[INFO] [stderr]     |               ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `TypeSignature`
[INFO] [stderr]   --> src/ast.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     TypeSignature { names: Vec<&'a str>, typ: Type<'a> },
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Lit`
[INFO] [stderr]   --> src/ast.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     Lit(Literal),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Var`
[INFO] [stderr]   --> src/ast.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     Var(&'a str),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Lam`
[INFO] [stderr]   --> src/ast.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     Lam(Lambda<'a>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `App`
[INFO] [stderr]   --> src/ast.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     App(Box<Expr<'a>>, Box<Expr<'a>>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Var`
[INFO] [stderr]   --> src/ast.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     Var(&'a str),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Concrete`
[INFO] [stderr]   --> src/ast.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     Concrete(&'a str),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `App`
[INFO] [stderr]   --> src/ast.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     App(Box<Type<'a>>, Box<Type<'a>>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `TypeSignature`
[INFO] [stderr]   --> src/ast.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     TypeSignature { names: Vec<&'a str>, typ: Type<'a> },
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Lit`
[INFO] [stderr]   --> src/ast.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     Lit(Literal),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Var`
[INFO] [stderr]   --> src/ast.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     Var(&'a str),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Lam`
[INFO] [stderr]   --> src/ast.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     Lam(Lambda<'a>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `App`
[INFO] [stderr]   --> src/ast.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     App(Box<Expr<'a>>, Box<Expr<'a>>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Var`
[INFO] [stderr]   --> src/ast.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     Var(&'a str),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Concrete`
[INFO] [stderr]   --> src/ast.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     Concrete(&'a str),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `App`
[INFO] [stderr]   --> src/ast.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     App(Box<Type<'a>>, Box<Type<'a>>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `"docker" "inspect" "91bd359d7e9e6f65dc7a1ff865440b5a7f6d9dd5d7d16fcf8c4e37c8dd8c823e"`
[INFO] running `"docker" "rm" "-f" "91bd359d7e9e6f65dc7a1ff865440b5a7f6d9dd5d7d16fcf8c4e37c8dd8c823e"`
[INFO] [stdout] 91bd359d7e9e6f65dc7a1ff865440b5a7f6d9dd5d7d16fcf8c4e37c8dd8c823e