[INFO] updating cached repository KeenS/rustlisp
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/KeenS/rustlisp
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/KeenS/rustlisp" "work/ex/beta-1.38-1/sources/1.37.0/gh/KeenS/rustlisp"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/KeenS/rustlisp'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/KeenS/rustlisp" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/KeenS/rustlisp"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/KeenS/rustlisp'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 682e52c77065c2161d293bcfdf32f3c1203a2e4c
[INFO] sha for GitHub repo KeenS/rustlisp: 682e52c77065c2161d293bcfdf32f3c1203a2e4c
[INFO] validating manifest of KeenS/rustlisp 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 KeenS/rustlisp 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 KeenS/rustlisp
[INFO] finished frobbing KeenS/rustlisp
[INFO] frobbed toml for KeenS/rustlisp written to work/ex/beta-1.38-1/sources/1.37.0/gh/KeenS/rustlisp/Cargo.toml
[INFO] started frobbing KeenS/rustlisp
[INFO] finished frobbing KeenS/rustlisp
[INFO] frobbed toml for KeenS/rustlisp written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/KeenS/rustlisp/Cargo.toml
[INFO] crate KeenS/rustlisp 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 KeenS/rustlisp 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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/KeenS/rustlisp:/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] 630ed7e8b5c4ba41a6c27a3f4b2b33b0529327b7dd30fc24069cdc399f0848da
[INFO] running `"docker" "start" "-a" "630ed7e8b5c4ba41a6c27a3f4b2b33b0529327b7dd30fc24069cdc399f0848da"`
[INFO] [stderr]    Compiling rustlisp v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::marker::PhantomData`
[INFO] [stderr]  --> src/lib.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::marker::PhantomData;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::marker::PhantomData`
[INFO] [stderr]  --> src/expr.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::marker::PhantomData;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::marker::PhantomData`
[INFO] [stderr]  --> src/eval.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::marker::PhantomData;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `env::*`
[INFO] [stderr]  --> src/eval.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use env::*;
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `cons::*`
[INFO] [stderr]  --> src/eval.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use cons::*;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `expr::*`
[INFO] [stderr]  --> src/user.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use expr::*;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `eval::*`
[INFO] [stderr]  --> src/user.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use eval::*;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type parameter `N1_O` should have an upper camel case name
[INFO] [stderr]   --> src/user.rs:17:17
[INFO] [stderr]    |
[INFO] [stderr] 17 | impl <T1N: Num, N1_O: Num, N2_O: Num, NO: Num>Fun1<Number<Succ<Succ<T1N>>>> for Fib
[INFO] [stderr]    |                 ^^^^ help: convert the identifier to upper camel case: `N1O`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_camel_case_types)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type parameter `N2_O` should have an upper camel case name
[INFO] [stderr]   --> src/user.rs:17:28
[INFO] [stderr]    |
[INFO] [stderr] 17 | impl <T1N: Num, N1_O: Num, N2_O: Num, NO: Num>Fun1<Number<Succ<Succ<T1N>>>> for Fib
[INFO] [stderr]    |                            ^^^^ help: convert the identifier to upper camel case: `N2O`
[INFO] [stderr] 
[INFO] [stderr] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stderr]   --> src/env.rs:11:21
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub type Stack1<T1: Expr> = Stack<T1, Bottom>;
[INFO] [stderr]    |                     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(type_alias_bounds)] on by default
[INFO] [stderr]    = help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stderr] 
[INFO] [stderr] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stderr]   --> src/env.rs:12:21
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub type Stack2<T1: Expr, T2: Expr> = Stack<T1, Stack1<T2>>;
[INFO] [stderr]    |                     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stderr] 
[INFO] [stderr] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stderr]   --> src/env.rs:12:31
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub type Stack2<T1: Expr, T2: Expr> = Stack<T1, Stack1<T2>>;
[INFO] [stderr]    |                               ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stderr] 
[INFO] [stderr] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stderr]   --> src/env.rs:13:21
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub type Stack3<T1: Expr, T2: Expr, T3: Expr> = Stack<T1, Stack2<T2, T3>>;
[INFO] [stderr]    |                     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stderr] 
[INFO] [stderr] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stderr]   --> src/env.rs:13:31
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub type Stack3<T1: Expr, T2: Expr, T3: Expr> = Stack<T1, Stack2<T2, T3>>;
[INFO] [stderr]    |                               ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stderr] 
[INFO] [stderr] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stderr]   --> src/env.rs:13:41
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub type Stack3<T1: Expr, T2: Expr, T3: Expr> = Stack<T1, Stack2<T2, T3>>;
[INFO] [stderr]    |                                         ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stderr] 
[INFO] [stderr] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stderr]   --> src/env.rs:14:21
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub type Stack4<T1: Expr, T2: Expr, T3: Expr, T4: Expr> = Stack<T1, Stack3<T2, T3, T4>>;
[INFO] [stderr]    |                     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stderr] 
[INFO] [stderr] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stderr]   --> src/env.rs:14:31
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub type Stack4<T1: Expr, T2: Expr, T3: Expr, T4: Expr> = Stack<T1, Stack3<T2, T3, T4>>;
[INFO] [stderr]    |                               ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stderr] 
[INFO] [stderr] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stderr]   --> src/env.rs:14:41
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub type Stack4<T1: Expr, T2: Expr, T3: Expr, T4: Expr> = Stack<T1, Stack3<T2, T3, T4>>;
[INFO] [stderr]    |                                         ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stderr] 
[INFO] [stderr] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stderr]   --> src/env.rs:14:51
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub type Stack4<T1: Expr, T2: Expr, T3: Expr, T4: Expr> = Stack<T1, Stack3<T2, T3, T4>>;
[INFO] [stderr]    |                                                   ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rustlisp::eval::*`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use rustlisp::eval::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rustlisp::symbol`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use rustlisp::symbol::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `"docker" "inspect" "630ed7e8b5c4ba41a6c27a3f4b2b33b0529327b7dd30fc24069cdc399f0848da"`
[INFO] running `"docker" "rm" "-f" "630ed7e8b5c4ba41a6c27a3f4b2b33b0529327b7dd30fc24069cdc399f0848da"`
[INFO] [stdout] 630ed7e8b5c4ba41a6c27a3f4b2b33b0529327b7dd30fc24069cdc399f0848da
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/KeenS/rustlisp:/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] 699cb1d97449d83a5e1f927fd50eb4672c4c9399b24893e51d188abbe26caa6c
[INFO] running `"docker" "start" "-a" "699cb1d97449d83a5e1f927fd50eb4672c4c9399b24893e51d188abbe26caa6c"`
[INFO] [stderr]    Compiling rustlisp v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `rustlisp::eval::*`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use rustlisp::eval::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rustlisp::symbol`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use rustlisp::symbol::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::marker::PhantomData`
[INFO] [stderr]  --> src/lib.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::marker::PhantomData;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::marker::PhantomData`
[INFO] [stderr]  --> src/expr.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::marker::PhantomData;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::marker::PhantomData`
[INFO] [stderr]  --> src/eval.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::marker::PhantomData;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `env::*`
[INFO] [stderr]  --> src/eval.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use env::*;
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `cons::*`
[INFO] [stderr]  --> src/eval.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use cons::*;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `expr::*`
[INFO] [stderr]  --> src/user.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use expr::*;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `eval::*`
[INFO] [stderr]  --> src/user.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use eval::*;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type parameter `N1_O` should have an upper camel case name
[INFO] [stderr]   --> src/user.rs:17:17
[INFO] [stderr]    |
[INFO] [stderr] 17 | impl <T1N: Num, N1_O: Num, N2_O: Num, NO: Num>Fun1<Number<Succ<Succ<T1N>>>> for Fib
[INFO] [stderr]    |                 ^^^^ help: convert the identifier to upper camel case: `N1O`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_camel_case_types)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type parameter `N2_O` should have an upper camel case name
[INFO] [stderr]   --> src/user.rs:17:28
[INFO] [stderr]    |
[INFO] [stderr] 17 | impl <T1N: Num, N1_O: Num, N2_O: Num, NO: Num>Fun1<Number<Succ<Succ<T1N>>>> for Fib
[INFO] [stderr]    |                            ^^^^ help: convert the identifier to upper camel case: `N2O`
[INFO] [stderr] 
[INFO] [stderr] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stderr]   --> src/env.rs:11:21
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub type Stack1<T1: Expr> = Stack<T1, Bottom>;
[INFO] [stderr]    |                     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(type_alias_bounds)] on by default
[INFO] [stderr]    = help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stderr] 
[INFO] [stderr] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stderr]   --> src/env.rs:12:21
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub type Stack2<T1: Expr, T2: Expr> = Stack<T1, Stack1<T2>>;
[INFO] [stderr]    |                     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stderr] 
[INFO] [stderr] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stderr]   --> src/env.rs:12:31
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub type Stack2<T1: Expr, T2: Expr> = Stack<T1, Stack1<T2>>;
[INFO] [stderr]    |                               ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stderr] 
[INFO] [stderr] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stderr]   --> src/env.rs:13:21
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub type Stack3<T1: Expr, T2: Expr, T3: Expr> = Stack<T1, Stack2<T2, T3>>;
[INFO] [stderr]    |                     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stderr] 
[INFO] [stderr] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stderr]   --> src/env.rs:13:31
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub type Stack3<T1: Expr, T2: Expr, T3: Expr> = Stack<T1, Stack2<T2, T3>>;
[INFO] [stderr]    |                               ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stderr] 
[INFO] [stderr] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stderr]   --> src/env.rs:13:41
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub type Stack3<T1: Expr, T2: Expr, T3: Expr> = Stack<T1, Stack2<T2, T3>>;
[INFO] [stderr]    |                                         ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stderr] 
[INFO] [stderr] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stderr]   --> src/env.rs:14:21
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub type Stack4<T1: Expr, T2: Expr, T3: Expr, T4: Expr> = Stack<T1, Stack3<T2, T3, T4>>;
[INFO] [stderr]    |                     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stderr] 
[INFO] [stderr] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stderr]   --> src/env.rs:14:31
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub type Stack4<T1: Expr, T2: Expr, T3: Expr, T4: Expr> = Stack<T1, Stack3<T2, T3, T4>>;
[INFO] [stderr]    |                               ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stderr] 
[INFO] [stderr] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stderr]   --> src/env.rs:14:41
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub type Stack4<T1: Expr, T2: Expr, T3: Expr, T4: Expr> = Stack<T1, Stack3<T2, T3, T4>>;
[INFO] [stderr]    |                                         ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stderr] 
[INFO] [stderr] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stderr]   --> src/env.rs:14:51
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub type Stack4<T1: Expr, T2: Expr, T3: Expr, T4: Expr> = Stack<T1, Stack3<T2, T3, T4>>;
[INFO] [stderr]    |                                                   ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `"docker" "inspect" "699cb1d97449d83a5e1f927fd50eb4672c4c9399b24893e51d188abbe26caa6c"`
[INFO] running `"docker" "rm" "-f" "699cb1d97449d83a5e1f927fd50eb4672c4c9399b24893e51d188abbe26caa6c"`
[INFO] [stdout] 699cb1d97449d83a5e1f927fd50eb4672c4c9399b24893e51d188abbe26caa6c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/KeenS/rustlisp:/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] 5ba2dbdde7ec6f63c101660d7a7f0bb6cf7bcf37a525896c63843c7e3353551b
[INFO] running `"docker" "start" "-a" "5ba2dbdde7ec6f63c101660d7a7f0bb6cf7bcf37a525896c63843c7e3353551b"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rustlisp-8fc6ecdaeb84dbf8
[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] [stderr]      Running /opt/crater/target/debug/deps/rustlisp-74a3f0913a9fe727
[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] [stderr]    Doc-tests rustlisp
[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" "5ba2dbdde7ec6f63c101660d7a7f0bb6cf7bcf37a525896c63843c7e3353551b"`
[INFO] running `"docker" "rm" "-f" "5ba2dbdde7ec6f63c101660d7a7f0bb6cf7bcf37a525896c63843c7e3353551b"`
[INFO] [stdout] 5ba2dbdde7ec6f63c101660d7a7f0bb6cf7bcf37a525896c63843c7e3353551b