[INFO] cloning repository https://github.com/Jeremy5909/Lambda
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Jeremy5909/Lambda" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJeremy5909%2FLambda", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJeremy5909%2FLambda'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5c512c869eac3fbea1b75a012ce8ccfcd0ecb082
[INFO] testing Jeremy5909/Lambda against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJeremy5909%2FLambda" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Jeremy5909/Lambda
[INFO] finished tweaking git repo https://github.com/Jeremy5909/Lambda
[INFO] tweaked toml for git repo https://github.com/Jeremy5909/Lambda written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Jeremy5909/Lambda on toolchain ec6f9a5b4413f74386267ef8efc93712c2ce6db6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Jeremy5909/Lambda already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d6c12680cfdedac25fb6fec34501beba265af2a69fdd0f17d8364161630ee7e4
[INFO] running `Command { std: "docker" "start" "-a" "d6c12680cfdedac25fb6fec34501beba265af2a69fdd0f17d8364161630ee7e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6c12680cfdedac25fb6fec34501beba265af2a69fdd0f17d8364161630ee7e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6c12680cfdedac25fb6fec34501beba265af2a69fdd0f17d8364161630ee7e4", kill_on_drop: false }`
[INFO] [stdout] d6c12680cfdedac25fb6fec34501beba265af2a69fdd0f17d8364161630ee7e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ddd87bd8e4a665e73fe04c7f09644548661443e69231f47cf0a0c5dd71ff3e1
[INFO] running `Command { std: "docker" "start" "-a" "0ddd87bd8e4a665e73fe04c7f09644548661443e69231f47cf0a0c5dd71ff3e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling lambda v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated functions `variable` and `application` are never used
[INFO] [stdout]   --> src/lambda.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl Lambda {
[INFO] [stdout]    | ----------- associated functions in this implementation
[INFO] [stdout] 44 |     pub fn variable(name: &str) -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     pub fn application(func: Lambda, args: Vec<Lambda>) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "0ddd87bd8e4a665e73fe04c7f09644548661443e69231f47cf0a0c5dd71ff3e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ddd87bd8e4a665e73fe04c7f09644548661443e69231f47cf0a0c5dd71ff3e1", kill_on_drop: false }`
[INFO] [stdout] 0ddd87bd8e4a665e73fe04c7f09644548661443e69231f47cf0a0c5dd71ff3e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe419eaa2a7c3d47a2ee676cc58de3211aaba74c0d83577bd42b8f0fc48f0ee6
[INFO] running `Command { std: "docker" "start" "-a" "fe419eaa2a7c3d47a2ee676cc58de3211aaba74c0d83577bd42b8f0fc48f0ee6", kill_on_drop: false }`
[INFO] [stderr]    Compiling lambda v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/tests.rs:25:64
[INFO] [stdout]    |
[INFO] [stdout] 25 |     Lambda::parse_definition(tokenize("3 := \\f x.f(f(f x))"), (&mut env));
[INFO] [stdout]    |                                                                ^        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 25 -     Lambda::parse_definition(tokenize("3 := \\f x.f(f(f x))"), (&mut env));
[INFO] [stdout] 25 +     Lambda::parse_definition(tokenize("3 := \\f x.f(f(f x))"), &mut env );
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/tests.rs:26:66
[INFO] [stdout]    |
[INFO] [stdout] 26 |     Lambda::parse_definition(tokenize("S := \\n f x.f (n f x)"), (&mut env));
[INFO] [stdout]    |                                                                  ^        ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 26 -     Lambda::parse_definition(tokenize("S := \\n f x.f (n f x)"), (&mut env));
[INFO] [stdout] 26 +     Lambda::parse_definition(tokenize("S := \\n f x.f (n f x)"), &mut env );
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/tests.rs:30:52
[INFO] [stdout]    |
[INFO] [stdout] 30 |         Lambda::parse_tokens(tokenize("S 3"), Some((&mut env)))
[INFO] [stdout]    |                                                    ^        ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 30 -         Lambda::parse_tokens(tokenize("S 3"), Some((&mut env)))
[INFO] [stdout] 30 +         Lambda::parse_tokens(tokenize("S 3"), Some(&mut env ))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/tests.rs:40:61
[INFO] [stdout]    |
[INFO] [stdout] 40 |     Lambda::parse_definition(tokenize("2 := \\f x.f(f x)"), (&mut env));
[INFO] [stdout]    |                                                             ^        ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 40 -     Lambda::parse_definition(tokenize("2 := \\f x.f(f x)"), (&mut env));
[INFO] [stdout] 40 +     Lambda::parse_definition(tokenize("2 := \\f x.f(f x)"), &mut env );
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/tests.rs:41:65
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Lambda::parse_definition(tokenize("3 := \\f x.f(f(f(x)))"), (&mut env));
[INFO] [stdout]    |                                                                 ^        ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 41 -     Lambda::parse_definition(tokenize("3 := \\f x.f(f(f(x)))"), (&mut env));
[INFO] [stdout] 41 +     Lambda::parse_definition(tokenize("3 := \\f x.f(f(f(x)))"), &mut env );
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/tests.rs:42:65
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Lambda::parse_definition(tokenize("S := \\n f x.f(n f x)"), (&mut env));
[INFO] [stdout]    |                                                                 ^        ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 42 -     Lambda::parse_definition(tokenize("S := \\n f x.f(n f x)"), (&mut env));
[INFO] [stdout] 42 +     Lambda::parse_definition(tokenize("S := \\n f x.f(n f x)"), &mut env );
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/tests.rs:43:60
[INFO] [stdout]    |
[INFO] [stdout] 43 |     Lambda::parse_definition(tokenize("+ := \\a b.a S b"), (&mut env));
[INFO] [stdout]    |                                                            ^        ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 43 -     Lambda::parse_definition(tokenize("+ := \\a b.a S b"), (&mut env));
[INFO] [stdout] 43 +     Lambda::parse_definition(tokenize("+ := \\a b.a S b"), &mut env );
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "fe419eaa2a7c3d47a2ee676cc58de3211aaba74c0d83577bd42b8f0fc48f0ee6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe419eaa2a7c3d47a2ee676cc58de3211aaba74c0d83577bd42b8f0fc48f0ee6", kill_on_drop: false }`
[INFO] [stdout] fe419eaa2a7c3d47a2ee676cc58de3211aaba74c0d83577bd42b8f0fc48f0ee6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b90f5597d0e4d7d2fe7387dba66418e3a8eea58f82b7df173525bcc7813a022d
[INFO] running `Command { std: "docker" "start" "-a" "b90f5597d0e4d7d2fe7387dba66418e3a8eea58f82b7df173525bcc7813a022d", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/tests.rs:25:64
[INFO] [stderr]    |
[INFO] [stderr] 25 |     Lambda::parse_definition(tokenize("3 := \\f x.f(f(f x))"), (&mut env));
[INFO] [stderr]    |                                                                ^        ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 25 -     Lambda::parse_definition(tokenize("3 := \\f x.f(f(f x))"), (&mut env));
[INFO] [stderr] 25 +     Lambda::parse_definition(tokenize("3 := \\f x.f(f(f x))"), &mut env );
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/tests.rs:26:66
[INFO] [stderr]    |
[INFO] [stderr] 26 |     Lambda::parse_definition(tokenize("S := \\n f x.f (n f x)"), (&mut env));
[INFO] [stderr]    |                                                                  ^        ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 26 -     Lambda::parse_definition(tokenize("S := \\n f x.f (n f x)"), (&mut env));
[INFO] [stderr] 26 +     Lambda::parse_definition(tokenize("S := \\n f x.f (n f x)"), &mut env );
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/tests.rs:30:52
[INFO] [stderr]    |
[INFO] [stderr] 30 |         Lambda::parse_tokens(tokenize("S 3"), Some((&mut env)))
[INFO] [stderr]    |                                                    ^        ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 30 -         Lambda::parse_tokens(tokenize("S 3"), Some((&mut env)))
[INFO] [stderr] 30 +         Lambda::parse_tokens(tokenize("S 3"), Some(&mut env ))
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/tests.rs:40:61
[INFO] [stderr]    |
[INFO] [stderr] 40 |     Lambda::parse_definition(tokenize("2 := \\f x.f(f x)"), (&mut env));
[INFO] [stderr]    |                                                             ^        ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 40 -     Lambda::parse_definition(tokenize("2 := \\f x.f(f x)"), (&mut env));
[INFO] [stderr] 40 +     Lambda::parse_definition(tokenize("2 := \\f x.f(f x)"), &mut env );
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/tests.rs:41:65
[INFO] [stderr]    |
[INFO] [stderr] 41 |     Lambda::parse_definition(tokenize("3 := \\f x.f(f(f(x)))"), (&mut env));
[INFO] [stderr]    |                                                                 ^        ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 41 -     Lambda::parse_definition(tokenize("3 := \\f x.f(f(f(x)))"), (&mut env));
[INFO] [stderr] 41 +     Lambda::parse_definition(tokenize("3 := \\f x.f(f(f(x)))"), &mut env );
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/tests.rs:42:65
[INFO] [stderr]    |
[INFO] [stderr] 42 |     Lambda::parse_definition(tokenize("S := \\n f x.f(n f x)"), (&mut env));
[INFO] [stderr]    |                                                                 ^        ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 42 -     Lambda::parse_definition(tokenize("S := \\n f x.f(n f x)"), (&mut env));
[INFO] [stderr] 42 +     Lambda::parse_definition(tokenize("S := \\n f x.f(n f x)"), &mut env );
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/tests.rs:43:60
[INFO] [stderr]    |
[INFO] [stderr] 43 |     Lambda::parse_definition(tokenize("+ := \\a b.a S b"), (&mut env));
[INFO] [stderr]    |                                                            ^        ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 43 -     Lambda::parse_definition(tokenize("+ := \\a b.a S b"), (&mut env));
[INFO] [stderr] 43 +     Lambda::parse_definition(tokenize("+ := \\a b.a S b"), &mut env );
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `lambda` (bin "lambda" test) generated 7 warnings (run `cargo fix --bin "lambda" -p lambda --tests` to apply 7 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/lambda-a79f91b7e825951f)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::test_false ... ok
[INFO] [stdout] test tests::test_true ... ok
[INFO] [stdout] test tests::test_add_one_two ... FAILED
[INFO] [stdout] test tests::test_successor ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::test_add_one_two stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'tests::test_add_one_two' (18) panicked at src/tests.rs:46:5:
[INFO] [stdout] assertion `left == right` failed
[INFO] [stdout]   left: \f.\x.f (f ((x f) x))
[INFO] [stdout]  right: \f.\x.f (f (f (f x)))
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5ce7bf33befa - std[29689e6404d28ef9]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5ce7bf33befa - std[29689e6404d28ef9]::backtrace_rs::backtrace::trace_unsynchronized::<std[29689e6404d28ef9]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5ce7bf33befa - std[29689e6404d28ef9]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5ce7bf33befa - <<std[29689e6404d28ef9]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[e929cb53b82a81ca]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5ce7bf34fd3a - <core[e929cb53b82a81ca]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5ce7bf34fd3a - core[e929cb53b82a81ca]::fmt::write
[INFO] [stdout]    6:     0x5ce7bf340732 - std[29689e6404d28ef9]::io::default_write_fmt::<alloc[9d7caffeb3b5d2c6]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/io/mod.rs:621:11
[INFO] [stdout]    7:     0x5ce7bf340732 - <alloc[9d7caffeb3b5d2c6]::vec::Vec<u8> as std[29689e6404d28ef9]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/io/mod.rs:1976:13
[INFO] [stdout]    8:     0x5ce7bf31aeff - <std[29689e6404d28ef9]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5ce7bf31aeff - std[29689e6404d28ef9]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5ce7bf334359 - std[29689e6404d28ef9]::panicking::default_hook
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5ce7bf2d0bac - <alloc[9d7caffeb3b5d2c6]::boxed::Box<dyn for<'a, 'b> core[e929cb53b82a81ca]::ops::function::Fn<(&'a std[29689e6404d28ef9]::panic::PanicHookInfo<'b>,), Output = ()> + core[e929cb53b82a81ca]::marker::Send + core[e929cb53b82a81ca]::marker::Sync> as core[e929cb53b82a81ca]::ops::function::Fn<(&std[29689e6404d28ef9]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/alloc/src/boxed.rs:2285:9
[INFO] [stdout]   12:     0x5ce7bf2d0bac - test[a24b3028667022f7]::test_main_inner::<test[a24b3028667022f7]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/test/src/lib.rs:155:21
[INFO] [stdout]   13:     0x5ce7bf334512 - <alloc[9d7caffeb3b5d2c6]::boxed::Box<dyn for<'a, 'b> core[e929cb53b82a81ca]::ops::function::Fn<(&'a std[29689e6404d28ef9]::panic::PanicHookInfo<'b>,), Output = ()> + core[e929cb53b82a81ca]::marker::Send + core[e929cb53b82a81ca]::marker::Sync> as core[e929cb53b82a81ca]::ops::function::Fn<(&std[29689e6404d28ef9]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/alloc/src/boxed.rs:2285:9
[INFO] [stdout]   14:     0x5ce7bf334512 - std[29689e6404d28ef9]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x5ce7bf31afb8 - std[29689e6404d28ef9]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x5ce7bf3101c9 - std[29689e6404d28ef9]::sys::backtrace::__rust_end_short_backtrace::<std[29689e6404d28ef9]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5ce7bf31bccd - __rustc[3aed6af316653e63]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x5ce7bf35048c - core[e929cb53b82a81ca]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5ce7bf350343 - core[e929cb53b82a81ca]::panicking::assert_failed_inner
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/panicking.rs:439:17
[INFO] [stdout]   20:     0x5ce7bf2b58f9 - core[e929cb53b82a81ca]::panicking::assert_failed::<lambda[ae77f416e1852fc6]::lambda::Lambda, lambda[ae77f416e1852fc6]::lambda::Lambda>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/panicking.rs:394:5
[INFO] [stdout]   21:     0x5ce7bf2c1ecd - lambda[ae77f416e1852fc6]::tests::test_add_one_two
[INFO] [stdout]                                at /opt/rustwide/workdir/src/tests.rs:46:5
[INFO] [stdout]   22:     0x5ce7bf2bf4f7 - lambda[ae77f416e1852fc6]::tests::test_add_one_two::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/tests.rs:38:22
[INFO] [stdout]   23:     0x5ce7bf2bcd56 - <lambda[ae77f416e1852fc6]::tests::test_add_one_two::{closure#0} as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5ce7bf2c3e8b - <fn() -> core[e929cb53b82a81ca]::result::Result<(), alloc[9d7caffeb3b5d2c6]::string::String> as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x5ce7bf2c3e8b - test[a24b3028667022f7]::__rust_begin_short_backtrace::<core[e929cb53b82a81ca]::result::Result<(), alloc[9d7caffeb3b5d2c6]::string::String>, fn() -> core[e929cb53b82a81ca]::result::Result<(), alloc[9d7caffeb3b5d2c6]::string::String>>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/test/src/lib.rs:724:18
[INFO] [stdout]   26:     0x5ce7bf2d167b - test[a24b3028667022f7]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/test/src/lib.rs:747:74
[INFO] [stdout]   27:     0x5ce7bf2d167b - <core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<test[a24b3028667022f7]::run_test_in_process::{closure#0}> as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   28:     0x5ce7bf2d167b - std[29689e6404d28ef9]::panicking::catch_unwind::do_call::<core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<test[a24b3028667022f7]::run_test_in_process::{closure#0}>, core[e929cb53b82a81ca]::result::Result<(), alloc[9d7caffeb3b5d2c6]::string::String>>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:581:40
[INFO] [stdout]   29:     0x5ce7bf2d167b - std[29689e6404d28ef9]::panicking::catch_unwind::<core[e929cb53b82a81ca]::result::Result<(), alloc[9d7caffeb3b5d2c6]::string::String>, core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<test[a24b3028667022f7]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:544:19
[INFO] [stdout]   30:     0x5ce7bf2d167b - std[29689e6404d28ef9]::panic::catch_unwind::<core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<test[a24b3028667022f7]::run_test_in_process::{closure#0}>, core[e929cb53b82a81ca]::result::Result<(), alloc[9d7caffeb3b5d2c6]::string::String>>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x5ce7bf2d167b - test[a24b3028667022f7]::run_test_in_process
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/test/src/lib.rs:747:27
[INFO] [stdout]   32:     0x5ce7bf2d167b - test[a24b3028667022f7]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/test/src/lib.rs:668:43
[INFO] [stdout]   33:     0x5ce7bf2cad94 - test[a24b3028667022f7]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/test/src/lib.rs:698:41
[INFO] [stdout]   34:     0x5ce7bf2cad94 - std[29689e6404d28ef9]::sys::backtrace::__rust_begin_short_backtrace::<test[a24b3028667022f7]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   35:     0x5ce7bf2d4282 - std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked::<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/thread/lifecycle.rs:70:13
[INFO] [stdout]   36:     0x5ce7bf2d4282 - <core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   37:     0x5ce7bf2d4282 - std[29689e6404d28ef9]::panicking::catch_unwind::do_call::<core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:581:40
[INFO] [stdout]   38:     0x5ce7bf2d4282 - std[29689e6404d28ef9]::panicking::catch_unwind::<(), core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:544:19
[INFO] [stdout]   39:     0x5ce7bf2d4282 - std[29689e6404d28ef9]::panic::catch_unwind::<core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x5ce7bf2d4282 - std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked::<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/thread/lifecycle.rs:68:26
[INFO] [stdout]   41:     0x5ce7bf2d4282 - <std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1} as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x5ce7bf33b80f - <alloc[9d7caffeb3b5d2c6]::boxed::Box<dyn core[e929cb53b82a81ca]::ops::function::FnOnce<(), Output = ()> + core[e929cb53b82a81ca]::marker::Send> as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/alloc/src/boxed.rs:2271:9
[INFO] [stdout]   43:     0x5ce7bf33b80f - <std[29689e6404d28ef9]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/thread/unix.rs:118:17
[INFO] [stdout]   44:     0x732ca9783aa4 - <unknown>
[INFO] [stdout]   45:     0x732ca9810a64 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::test_add_one_two
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 3 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin lambda`
[INFO] running `Command { std: "docker" "inspect" "b90f5597d0e4d7d2fe7387dba66418e3a8eea58f82b7df173525bcc7813a022d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b90f5597d0e4d7d2fe7387dba66418e3a8eea58f82b7df173525bcc7813a022d", kill_on_drop: false }`
[INFO] [stdout] b90f5597d0e4d7d2fe7387dba66418e3a8eea58f82b7df173525bcc7813a022d
