[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/beta-1.38-1/sources/1.37.0/gh/jparoz/huck"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/jparoz/huck'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jparoz/huck" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jparoz/huck"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/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 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jparoz/huck on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "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/beta-1.38-1/sources/1.37.0/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/beta-1.38-1/sources/beta-2019-08-13/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" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing jparoz/huck against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 12bef247bab8ee32158786f0f120eed1e2d8fa91e7181d7ddb1b3989020cf8bd
[INFO] running `"docker" "start" "-a" "12bef247bab8ee32158786f0f120eed1e2d8fa91e7181d7ddb1b3989020cf8bd"`
[INFO] [stderr]    Compiling 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: `...` range patterns are deprecated
[INFO] [stderr]    --> src/lex.rs:604:20
[INFO] [stderr]     |
[INFO] [stderr] 604 |                 '0'...'9' => {
[INFO] [stderr]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(ellipsis_inclusive_range_patterns)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/lex.rs:683:12
[INFO] [stderr]     |
[INFO] [stderr] 683 |         'a'...'z' | 'A'...'Z' | '_' => true,
[INFO] [stderr]     |            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/lex.rs:683:24
[INFO] [stderr]     |
[INFO] [stderr] 683 |         'a'...'z' | 'A'...'Z' | '_' => true,
[INFO] [stderr]     |                        ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/lex.rs:690:12
[INFO] [stderr]     |
[INFO] [stderr] 690 |         'a'...'z' | 'A'...'Z' | '0'...'9' | '_' | '\'' => true,
[INFO] [stderr]     |            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/lex.rs:690:24
[INFO] [stderr]     |
[INFO] [stderr] 690 |         'a'...'z' | 'A'...'Z' | '0'...'9' | '_' | '\'' => true,
[INFO] [stderr]     |                        ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/lex.rs:690:36
[INFO] [stderr]     |
[INFO] [stderr] 690 |         'a'...'z' | 'A'...'Z' | '0'...'9' | '_' | '\'' => true,
[INFO] [stderr]     |                                    ^^^ help: use `..=` for an inclusive range
[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 1.79s
[INFO] running `"docker" "inspect" "12bef247bab8ee32158786f0f120eed1e2d8fa91e7181d7ddb1b3989020cf8bd"`
[INFO] running `"docker" "rm" "-f" "12bef247bab8ee32158786f0f120eed1e2d8fa91e7181d7ddb1b3989020cf8bd"`
[INFO] [stdout] 12bef247bab8ee32158786f0f120eed1e2d8fa91e7181d7ddb1b3989020cf8bd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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=warn" "-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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 19edb02a1ec4b8a1257de3689df1bd2e16c317cc2e7030b167d41a8d8c3b9c90
[INFO] running `"docker" "start" "-a" "19edb02a1ec4b8a1257de3689df1bd2e16c317cc2e7030b167d41a8d8c3b9c90"`
[INFO] [stderr]    Compiling 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: `...` range patterns are deprecated
[INFO] [stderr]    --> src/lex.rs:604:20
[INFO] [stderr]     |
[INFO] [stderr] 604 |                 '0'...'9' => {
[INFO] [stderr]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(ellipsis_inclusive_range_patterns)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/lex.rs:683:12
[INFO] [stderr]     |
[INFO] [stderr] 683 |         'a'...'z' | 'A'...'Z' | '_' => true,
[INFO] [stderr]     |            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/lex.rs:683:24
[INFO] [stderr]     |
[INFO] [stderr] 683 |         'a'...'z' | 'A'...'Z' | '_' => true,
[INFO] [stderr]     |                        ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/lex.rs:690:12
[INFO] [stderr]     |
[INFO] [stderr] 690 |         'a'...'z' | 'A'...'Z' | '0'...'9' | '_' | '\'' => true,
[INFO] [stderr]     |            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/lex.rs:690:24
[INFO] [stderr]     |
[INFO] [stderr] 690 |         'a'...'z' | 'A'...'Z' | '0'...'9' | '_' | '\'' => true,
[INFO] [stderr]     |                        ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/lex.rs:690:36
[INFO] [stderr]     |
[INFO] [stderr] 690 |         'a'...'z' | 'A'...'Z' | '0'...'9' | '_' | '\'' => true,
[INFO] [stderr]     |                                    ^^^ help: use `..=` for an inclusive range
[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 1.00s
[INFO] running `"docker" "inspect" "19edb02a1ec4b8a1257de3689df1bd2e16c317cc2e7030b167d41a8d8c3b9c90"`
[INFO] running `"docker" "rm" "-f" "19edb02a1ec4b8a1257de3689df1bd2e16c317cc2e7030b167d41a8d8c3b9c90"`
[INFO] [stdout] 19edb02a1ec4b8a1257de3689df1bd2e16c317cc2e7030b167d41a8d8c3b9c90
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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=warn" "-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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] f04d160f51a371a20d02e251cfe37dfd43875fbef5835822cfdcdfc52ad474de
[INFO] running `"docker" "start" "-a" "f04d160f51a371a20d02e251cfe37dfd43875fbef5835822cfdcdfc52ad474de"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/huck-e8fa14944165d567
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "f04d160f51a371a20d02e251cfe37dfd43875fbef5835822cfdcdfc52ad474de"`
[INFO] running `"docker" "rm" "-f" "f04d160f51a371a20d02e251cfe37dfd43875fbef5835822cfdcdfc52ad474de"`
[INFO] [stdout] f04d160f51a371a20d02e251cfe37dfd43875fbef5835822cfdcdfc52ad474de