[INFO] cloning repository https://github.com/jparoz/huck
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jparoz/huck" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjparoz%2Fhuck"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjparoz%2Fhuck'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f6107d31c3b5a8286a3effdfbfde6df6569270d7
[INFO] testing jparoz/huck against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjparoz%2Fhuck" "/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/jparoz/huck on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jparoz/huck
[INFO] finished tweaking git repo https://github.com/jparoz/huck
[INFO] tweaked toml for git repo https://github.com/jparoz/huck written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/jparoz/huck already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "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=warn" "-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" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cc36b76bc7c5d61d353749dba5d21802de87806793995d070e3b84f363e93e46
[INFO] running `"docker" "start" "-a" "cc36b76bc7c5d61d353749dba5d21802de87806793995d070e3b84f363e93e46"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling huck v0.1.0 (/opt/rustwide/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] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.64s
[INFO] running `"docker" "inspect" "cc36b76bc7c5d61d353749dba5d21802de87806793995d070e3b84f363e93e46"`
[INFO] running `"docker" "rm" "-f" "cc36b76bc7c5d61d353749dba5d21802de87806793995d070e3b84f363e93e46"`
[INFO] [stdout] cc36b76bc7c5d61d353749dba5d21802de87806793995d070e3b84f363e93e46
[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=warn" "-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" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f92858e2ca2513de91be9a13504c291ac5dcfa53db9fa8219ec6c44c3b3c7ecc
[INFO] running `"docker" "start" "-a" "f92858e2ca2513de91be9a13504c291ac5dcfa53db9fa8219ec6c44c3b3c7ecc"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling huck v0.1.0 (/opt/rustwide/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] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `"docker" "inspect" "f92858e2ca2513de91be9a13504c291ac5dcfa53db9fa8219ec6c44c3b3c7ecc"`
[INFO] running `"docker" "rm" "-f" "f92858e2ca2513de91be9a13504c291ac5dcfa53db9fa8219ec6c44c3b3c7ecc"`
[INFO] [stdout] f92858e2ca2513de91be9a13504c291ac5dcfa53db9fa8219ec6c44c3b3c7ecc
[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=warn" "-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" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stdout] 176e3559ff263f1103f10e2d6a426a27ed75f46afd5f5146c3ca3061506af08a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "176e3559ff263f1103f10e2d6a426a27ed75f46afd5f5146c3ca3061506af08a"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[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] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/huck-20ff972d583abda7
[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" "176e3559ff263f1103f10e2d6a426a27ed75f46afd5f5146c3ca3061506af08a"`
[INFO] running `"docker" "rm" "-f" "176e3559ff263f1103f10e2d6a426a27ed75f46afd5f5146c3ca3061506af08a"`
[INFO] [stdout] 176e3559ff263f1103f10e2d6a426a27ed75f46afd5f5146c3ca3061506af08a