[INFO] crate blc 0.6.0 is already in cache
[INFO] testing blc-0.6.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate blc 0.6.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate blc 0.6.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blc 0.6.0
[INFO] finished tweaking crates.io crate blc 0.6.0
[INFO] tweaked toml for crates.io crate blc 0.6.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5cf319c1b4f0b1a49ae44e1ed632dfc9c656bf59f2dab493f0da5dfae82720fc
[INFO] running `Command { std: "docker" "start" "-a" "5cf319c1b4f0b1a49ae44e1ed632dfc9c656bf59f2dab493f0da5dfae82720fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5cf319c1b4f0b1a49ae44e1ed632dfc9c656bf59f2dab493f0da5dfae82720fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cf319c1b4f0b1a49ae44e1ed632dfc9c656bf59f2dab493f0da5dfae82720fc", kill_on_drop: false }`
[INFO] [stdout] 5cf319c1b4f0b1a49ae44e1ed632dfc9c656bf59f2dab493f0da5dfae82720fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 31d8129a087d9157856fa928d785885ae83519c7d599e1319a5f32f8acc656a8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "31d8129a087d9157856fa928d785885ae83519c7d599e1319a5f32f8acc656a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling lambda_calculus v2.2.0
[INFO] [stderr]    Compiling blc v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:42:1
[INFO] [stdout]    |
[INFO] [stdout] 42 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/pair_list.rs:112:5
[INFO] [stdout]     |
[INFO] [stdout] 112 |     mem::replace(term, tail.clone()); // replace term with tail
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.28s
[INFO] running `Command { std: "docker" "inspect" "31d8129a087d9157856fa928d785885ae83519c7d599e1319a5f32f8acc656a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31d8129a087d9157856fa928d785885ae83519c7d599e1319a5f32f8acc656a8", kill_on_drop: false }`
[INFO] [stdout] 31d8129a087d9157856fa928d785885ae83519c7d599e1319a5f32f8acc656a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 765d72cf2d55aa52e335c8d15b3728dfaa68ae0c86d7e762e3030cf3f57aef29
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "765d72cf2d55aa52e335c8d15b3728dfaa68ae0c86d7e762e3030cf3f57aef29", kill_on_drop: false }`
[INFO] [stderr]    Compiling blc v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:42:1
[INFO] [stdout]    |
[INFO] [stdout] 42 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/pair_list.rs:112:5
[INFO] [stdout]     |
[INFO] [stdout] 112 |     mem::replace(term, tail.clone()); // replace term with tail
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/pair_list.rs:112:5
[INFO] [stdout]     |
[INFO] [stdout] 112 |     mem::replace(term, tail.clone()); // replace term with tail
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `Command { std: "docker" "inspect" "765d72cf2d55aa52e335c8d15b3728dfaa68ae0c86d7e762e3030cf3f57aef29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "765d72cf2d55aa52e335c8d15b3728dfaa68ae0c86d7e762e3030cf3f57aef29", kill_on_drop: false }`
[INFO] [stdout] 765d72cf2d55aa52e335c8d15b3728dfaa68ae0c86d7e762e3030cf3f57aef29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 746d8620f4c3ecec5ae5ae464e2ba2f3d2d000edf525ca98ab43ba5aa5c3d8f7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "746d8620f4c3ecec5ae5ae464e2ba2f3d2d000edf525ca98ab43ba5aa5c3d8f7", kill_on_drop: false }`
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:42:1
[INFO] [stderr]    |
[INFO] [stderr] 42 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/pair_list.rs:112:5
[INFO] [stderr]     |
[INFO] [stderr] 112 |     mem::replace(term, tail.clone()); // replace term with tail
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/pair_list.rs:112:5
[INFO] [stderr]     |
[INFO] [stderr] 112 |     mem::replace(term, tail.clone()); // replace term with tail
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/blc-d6e96cd88dd4e8f4
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test encoding::binary::test::compression ... ok
[INFO] [stdout] test encoding::binary::test::from_bits_and_back ... ok
[INFO] [stdout] test encoding::binary::test::ignoring_whitespaces ... ok
[INFO] [stdout] test encoding::binary::test::abstractions ... ok
[INFO] [stdout] test encoding::binary::test::decompression ... ok
[INFO] [stdout] test encoding::lambda::test::decode_encode_lambda ... ok
[INFO] [stdout] test encoding::lambda::test::decoding_lambda ... ok
[INFO] [stdout] test encoding::lambda::test::encoding_lambda ... ok
[INFO] [stdout] test encoding::binary::test::variables ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/deflate-c1550bb824c2a3f5
[INFO] [stdout] test encoding::binary::test::compress_decompress ... ok
[INFO] [stdout] test encoding::binary::test::applications ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test deflate ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/fizzbuzz-8cf963d9daf1629b
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/identity-a71645a39075c99a
[INFO] [stdout] test fizz_buzz ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test identity ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/inflate-d4989e0c45a93559
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/repeat-dc7265a506dcc1d7
[INFO] [stdout] test inflate ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sort-1947cb1a3f834712
[INFO] [stdout] test repeat ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests blc
[INFO] [stdout] test sort ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/encoding/binary.rs - encoding::binary::to_bits (line 73) ... ok
[INFO] [stdout] test src/encoding/lambda.rs - encoding::lambda::encode (line 65) ... ok
[INFO] [stdout] test src/execution.rs - execution::run (line 31) ... ok
[INFO] [stdout] test src/encoding/binary.rs - encoding::binary::from_bits (line 16) ... ok
[INFO] [stdout] test src/encoding/binary.rs - encoding::binary::compress (line 110) ... ok
[INFO] [stdout] test src/encoding/binary.rs - encoding::binary::decompress (line 143) ... ok
[INFO] [stdout] test src/encoding/lambda.rs - encoding::lambda::decode (line 12) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "746d8620f4c3ecec5ae5ae464e2ba2f3d2d000edf525ca98ab43ba5aa5c3d8f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "746d8620f4c3ecec5ae5ae464e2ba2f3d2d000edf525ca98ab43ba5aa5c3d8f7", kill_on_drop: false }`
[INFO] [stdout] 746d8620f4c3ecec5ae5ae464e2ba2f3d2d000edf525ca98ab43ba5aa5c3d8f7