[INFO] updating cached repository https://github.com/JanKaul/cek-machine
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fcd14fde5b3c75bd19744ce68c9968053012961d
[INFO] testing JanKaul/cek-machine against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJanKaul%2Fcek-machine" "/workspace/builds/worker-9/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JanKaul/cek-machine 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/JanKaul/cek-machine
[INFO] finished tweaking git repo https://github.com/JanKaul/cek-machine
[INFO] tweaked toml for git repo https://github.com/JanKaul/cek-machine written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/JanKaul/cek-machine 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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 92da65795e26c47ff325f76383a10eb00e36a6eac29c7439393d1ca02dff62fd
[INFO] running `"docker" "start" "-a" "92da65795e26c47ff325f76383a10eb00e36a6eac29c7439393d1ca02dff62fd"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling cek_machine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `e1`
[INFO] [stderr]   --> src/main.rs:87:9
[INFO] [stderr]    |
[INFO] [stderr] 87 |     let e1 = Box::new(Exp::Lam(String::from("f"),Box::new(Exp::App(Box::new(Exp::Var(String::from("f"))),Box::new(Exp::Var(String::from("f")))))));
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_e1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e2`
[INFO] [stderr]   --> src/main.rs:88:9
[INFO] [stderr]    |
[INFO] [stderr] 88 |     let e2 = Box::new(Exp::Lam(String::from("y"),Box::new(Exp::Var(String::from("y")))));
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_e2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e3`
[INFO] [stderr]   --> src/main.rs:91:9
[INFO] [stderr]    |
[INFO] [stderr] 91 |     let e3 = Box::new(Exp::Lam(String::from("f"),Box::new(Exp::App(Box::new(Exp::Var(String::from("f"))),Box::new(Exp::Int(1))))));
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_e3`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e4`
[INFO] [stderr]   --> src/main.rs:92:9
[INFO] [stderr]    |
[INFO] [stderr] 92 |     let e4 = Box::new(Exp::App(Box::new(Exp::Lam(String::from("x"),Box::new(Exp::Lam(String::from("y"),Box::new(Exp::Var(String::from("x"))))))),Box::new(Exp::Int(2))));
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_e4`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Let`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     Let(Box<Exp>,Box<Exp>,Box<Exp>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `If`
[INFO] [stderr]   --> src/main.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     If(Box<Exp>,Box<Exp>,Box<Exp>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.51s
[INFO] running `"docker" "inspect" "92da65795e26c47ff325f76383a10eb00e36a6eac29c7439393d1ca02dff62fd"`
[INFO] running `"docker" "rm" "-f" "92da65795e26c47ff325f76383a10eb00e36a6eac29c7439393d1ca02dff62fd"`
[INFO] [stdout] 92da65795e26c47ff325f76383a10eb00e36a6eac29c7439393d1ca02dff62fd
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 0498a69a7af5fbe383329a261de18a0e321a267f8544fb70a9dc330637aff4a3
[INFO] running `"docker" "start" "-a" "0498a69a7af5fbe383329a261de18a0e321a267f8544fb70a9dc330637aff4a3"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling cek_machine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `e1`
[INFO] [stderr]   --> src/main.rs:87:9
[INFO] [stderr]    |
[INFO] [stderr] 87 |     let e1 = Box::new(Exp::Lam(String::from("f"),Box::new(Exp::App(Box::new(Exp::Var(String::from("f"))),Box::new(Exp::Var(String::from("f")))))));
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_e1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e2`
[INFO] [stderr]   --> src/main.rs:88:9
[INFO] [stderr]    |
[INFO] [stderr] 88 |     let e2 = Box::new(Exp::Lam(String::from("y"),Box::new(Exp::Var(String::from("y")))));
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_e2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e3`
[INFO] [stderr]   --> src/main.rs:91:9
[INFO] [stderr]    |
[INFO] [stderr] 91 |     let e3 = Box::new(Exp::Lam(String::from("f"),Box::new(Exp::App(Box::new(Exp::Var(String::from("f"))),Box::new(Exp::Int(1))))));
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_e3`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e4`
[INFO] [stderr]   --> src/main.rs:92:9
[INFO] [stderr]    |
[INFO] [stderr] 92 |     let e4 = Box::new(Exp::App(Box::new(Exp::Lam(String::from("x"),Box::new(Exp::Lam(String::from("y"),Box::new(Exp::Var(String::from("x"))))))),Box::new(Exp::Int(2))));
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_e4`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Let`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     Let(Box<Exp>,Box<Exp>,Box<Exp>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `If`
[INFO] [stderr]   --> src/main.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     If(Box<Exp>,Box<Exp>,Box<Exp>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `"docker" "inspect" "0498a69a7af5fbe383329a261de18a0e321a267f8544fb70a9dc330637aff4a3"`
[INFO] running `"docker" "rm" "-f" "0498a69a7af5fbe383329a261de18a0e321a267f8544fb70a9dc330637aff4a3"`
[INFO] [stdout] 0498a69a7af5fbe383329a261de18a0e321a267f8544fb70a9dc330637aff4a3
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 76f952db340c8f0e47fac6878125b2d8e884885c617e6c5e56fe48b15f89d7de
[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" "76f952db340c8f0e47fac6878125b2d8e884885c617e6c5e56fe48b15f89d7de"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused variable: `e1`
[INFO] [stderr]   --> src/main.rs:87:9
[INFO] [stderr]    |
[INFO] [stderr] 87 |     let e1 = Box::new(Exp::Lam(String::from("f"),Box::new(Exp::App(Box::new(Exp::Var(String::from("f"))),Box::new(Exp::Var(String::from("f")))))));
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_e1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e2`
[INFO] [stderr]   --> src/main.rs:88:9
[INFO] [stderr]    |
[INFO] [stderr] 88 |     let e2 = Box::new(Exp::Lam(String::from("y"),Box::new(Exp::Var(String::from("y")))));
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_e2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e3`
[INFO] [stderr]   --> src/main.rs:91:9
[INFO] [stderr]    |
[INFO] [stderr] 91 |     let e3 = Box::new(Exp::Lam(String::from("f"),Box::new(Exp::App(Box::new(Exp::Var(String::from("f"))),Box::new(Exp::Int(1))))));
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_e3`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e4`
[INFO] [stderr]   --> src/main.rs:92:9
[INFO] [stderr]    |
[INFO] [stderr] 92 |     let e4 = Box::new(Exp::App(Box::new(Exp::Lam(String::from("x"),Box::new(Exp::Lam(String::from("y"),Box::new(Exp::Var(String::from("x"))))))),Box::new(Exp::Int(2))));
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_e4`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Let`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     Let(Box<Exp>,Box<Exp>,Box<Exp>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `If`
[INFO] [stderr]   --> src/main.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     If(Box<Exp>,Box<Exp>,Box<Exp>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/cek_machine-390ceec0d35567f7
[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" "76f952db340c8f0e47fac6878125b2d8e884885c617e6c5e56fe48b15f89d7de"`
[INFO] running `"docker" "rm" "-f" "76f952db340c8f0e47fac6878125b2d8e884885c617e6c5e56fe48b15f89d7de"`
[INFO] [stdout] 76f952db340c8f0e47fac6878125b2d8e884885c617e6c5e56fe48b15f89d7de