[INFO] fetching crate contracts 0.6.0...
[INFO] testing contracts-0.6.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate contracts 0.6.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate contracts 0.6.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate contracts 0.6.0
[INFO] finished tweaking crates.io crate contracts 0.6.0
[INFO] tweaked toml for crates.io crate contracts 0.6.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate contracts 0.6.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c34c69c5717a39a27c4cd022d26c8ed6e3ea8076920cbe6e33666b9974b37341
[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" "c34c69c5717a39a27c4cd022d26c8ed6e3ea8076920cbe6e33666b9974b37341", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c34c69c5717a39a27c4cd022d26c8ed6e3ea8076920cbe6e33666b9974b37341", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c34c69c5717a39a27c4cd022d26c8ed6e3ea8076920cbe6e33666b9974b37341", kill_on_drop: false }`
[INFO] [stdout] c34c69c5717a39a27c4cd022d26c8ed6e3ea8076920cbe6e33666b9974b37341
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56513fe17ad0284fafe34a847dd94ae21d178f4400311f60f8b1c595f208c91d
[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" "56513fe17ad0284fafe34a847dd94ae21d178f4400311f60f8b1c595f208c91d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling syn v1.0.19
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]    Compiling contracts v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.41s
[INFO] running `Command { std: "docker" "inspect" "56513fe17ad0284fafe34a847dd94ae21d178f4400311f60f8b1c595f208c91d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56513fe17ad0284fafe34a847dd94ae21d178f4400311f60f8b1c595f208c91d", kill_on_drop: false }`
[INFO] [stdout] 56513fe17ad0284fafe34a847dd94ae21d178f4400311f60f8b1c595f208c91d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", 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] 8ae7e7f89fe44e8597039292eb102518357c8c50ed9442b2566b122988510c07
[INFO] running `Command { std: "docker" "start" "-a" "8ae7e7f89fe44e8597039292eb102518357c8c50ed9442b2566b122988510c07", kill_on_drop: false }`
[INFO] [stderr]    Compiling contracts v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.48s
[INFO] running `Command { std: "docker" "inspect" "8ae7e7f89fe44e8597039292eb102518357c8c50ed9442b2566b122988510c07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ae7e7f89fe44e8597039292eb102518357c8c50ed9442b2566b122988510c07", kill_on_drop: false }`
[INFO] [stdout] 8ae7e7f89fe44e8597039292eb102518357c8c50ed9442b2566b122988510c07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0c141981214bb7b5480a7b95daa01a8bed9509ff4a2869d0d3fcc710b71bddae
[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" "0c141981214bb7b5480a7b95daa01a8bed9509ff4a2869d0d3fcc710b71bddae", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/contracts-57ffa5c0d2cc4638
[INFO] [stdout] running 2 tests
[INFO] [stdout] test implementation::traits::tests::attributes_stay_on_trait_def ... ok
[INFO] [stdout] test implementation::traits::tests::attributes_stay_on_trait_impl ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/functions-f4f16fbd86ae4d79
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test_a_thing ... ok
[INFO] [stdout] test test_sort ... ok
[INFO] [stdout] test test_invariant ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/implication-38b4c3b55954bd6d
[INFO] [stdout] test test_early_return ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test test_requires_implication ... ok
[INFO] [stdout] test test_ret_implication ... ok
[INFO] [stdout] test test_ret_implication_old ... ok
[INFO] [stdout] test test_nested_implication ... ok
[INFO] [stdout] test test_failing_implication ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/methods-11897e24e6a95935
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test methods ... ok
[INFO] [stdout] test impl_invariant ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/old-92044e91462cf0d9
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_old_nested ... ok
[INFO] [stdout] test test_old_simple ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ranged_int-b09db7e2d44c2a59
[INFO] [stdout] test test_violation ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test ranged_int_add ... ok
[INFO] [stdout] test ranged_int_add_reassign ... ok
[INFO] [stdout] test construction_overflow ... ok
[INFO] [stdout] test construction_underflow ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/traits-2d6b9042e5c78073
[INFO] [stdout] test ranged_overflow ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test adder_example ... ok
[INFO] [stdout] test interpolate_example ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests contracts
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test src/lib.rs - ensures (line 246) ... ok
[INFO] [stdout] test src/lib.rs - (line 152) ... ok
[INFO] [stdout] test src/lib.rs - ensures (line 238) ... ok
[INFO] [stdout] test src/lib.rs - invariant (line 293) ... ok
[INFO] [stdout] test src/lib.rs - invariant (line 304) ... ok
[INFO] [stdout] test src/lib.rs - requires (line 190) ... ok
[INFO] [stdout] test src/lib.rs - (line 116) ... ok
[INFO] [stdout] test src/lib.rs - (line 102) ... ok
[INFO] [stdout] test src/lib.rs - contract_trait (line 371) ... ok
[INFO] [stdout] test src/lib.rs - (line 22) ... ok
[INFO] [stdout] test src/lib.rs - (line 32) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.82s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0c141981214bb7b5480a7b95daa01a8bed9509ff4a2869d0d3fcc710b71bddae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c141981214bb7b5480a7b95daa01a8bed9509ff4a2869d0d3fcc710b71bddae", kill_on_drop: false }`
[INFO] [stdout] 0c141981214bb7b5480a7b95daa01a8bed9509ff4a2869d0d3fcc710b71bddae