[INFO] fetching crate checked 0.5.0...
[INFO] testing checked-0.5.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate checked 0.5.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate checked 0.5.0 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 checked 0.5.0
[INFO] finished tweaking crates.io crate checked 0.5.0
[INFO] tweaked toml for crates.io crate checked 0.5.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f199de257dad2921786699879cb9ada4c3a8417079f5cb841b47e2fd645b90fb
[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" "f199de257dad2921786699879cb9ada4c3a8417079f5cb841b47e2fd645b90fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f199de257dad2921786699879cb9ada4c3a8417079f5cb841b47e2fd645b90fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f199de257dad2921786699879cb9ada4c3a8417079f5cb841b47e2fd645b90fb", kill_on_drop: false }`
[INFO] [stdout] f199de257dad2921786699879cb9ada4c3a8417079f5cb841b47e2fd645b90fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c3473db010baa7b4a97c3e0ddf792ac1e7a372713f770263850978732b467d7
[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" "8c3473db010baa7b4a97c3e0ddf792ac1e7a372713f770263850978732b467d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling checked v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.27s
[INFO] running `Command { std: "docker" "inspect" "8c3473db010baa7b4a97c3e0ddf792ac1e7a372713f770263850978732b467d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c3473db010baa7b4a97c3e0ddf792ac1e7a372713f770263850978732b467d7", kill_on_drop: false }`
[INFO] [stdout] 8c3473db010baa7b4a97c3e0ddf792ac1e7a372713f770263850978732b467d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 609b6ba0e46fc9b1657c87d74d2481df5686c9668cdf6c6607bf2496a480930d
[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" "609b6ba0e46fc9b1657c87d74d2481df5686c9668cdf6c6607bf2496a480930d", kill_on_drop: false }`
[INFO] [stderr]    Compiling checked v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/tests.rs:100:24
[INFO] [stdout]     |
[INFO] [stdout] 100 | test_binop! (add3 i32: (-2_000_000_000) + (-2_000_000_000) == None);
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/tests.rs:100:43
[INFO] [stdout]     |
[INFO] [stdout] 100 | test_binop! (add3 i32: (-2_000_000_000) + (-2_000_000_000) == None);
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/tests.rs:113:29
[INFO] [stdout]     |
[INFO] [stdout] 113 | test_unop! (neg2 i8: - 5 == (-5));
[INFO] [stdout]     |                             ^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/tests.rs:114:28
[INFO] [stdout]     |
[INFO] [stdout] 114 | test_unop! (not i8: ! 5 == (-6));
[INFO] [stdout]     |                            ^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.32s
[INFO] running `Command { std: "docker" "inspect" "609b6ba0e46fc9b1657c87d74d2481df5686c9668cdf6c6607bf2496a480930d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "609b6ba0e46fc9b1657c87d74d2481df5686c9668cdf6c6607bf2496a480930d", kill_on_drop: false }`
[INFO] [stdout] 609b6ba0e46fc9b1657c87d74d2481df5686c9668cdf6c6607bf2496a480930d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cb708ce9df6bd98f31f0ff943111101b3249e151fa40894e3da3abcf9464b57f
[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" "cb708ce9df6bd98f31f0ff943111101b3249e151fa40894e3da3abcf9464b57f", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/tests.rs:100:24
[INFO] [stderr]     |
[INFO] [stderr] 100 | test_binop! (add3 i32: (-2_000_000_000) + (-2_000_000_000) == None);
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/tests.rs:100:43
[INFO] [stderr]     |
[INFO] [stderr] 100 | test_binop! (add3 i32: (-2_000_000_000) + (-2_000_000_000) == None);
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/tests.rs:113:29
[INFO] [stderr]     |
[INFO] [stderr] 113 | test_unop! (neg2 i8: - 5 == (-5));
[INFO] [stderr]     |                             ^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/tests.rs:114:28
[INFO] [stderr]     |
[INFO] [stderr] 114 | test_unop! (not i8: ! 5 == (-6));
[INFO] [stderr]     |                            ^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/checked-5fba1a63f7be5e26
[INFO] [stdout] running 25 tests
[INFO] [stderr]    Doc-tests checked
[INFO] [stdout] test tests::add1 ... ok
[INFO] [stdout] test tests::add2 ... ok
[INFO] [stdout] test tests::consuming_option_methods ... ok
[INFO] [stdout] test tests::div1 ... ok
[INFO] [stdout] test tests::div2 ... ok
[INFO] [stdout] test tests::from_checked ... ok
[INFO] [stdout] test tests::mul1 ... ok
[INFO] [stdout] test tests::mul2 ... ok
[INFO] [stdout] test tests::neg1 ... ok
[INFO] [stdout] test tests::neg2 ... ok
[INFO] [stdout] test tests::neutral_elements ... ok
[INFO] [stdout] test tests::mut_ref_option_methods ... ok
[INFO] [stdout] test tests::new_checked ... ok
[INFO] [stdout] test tests::shl ... ok
[INFO] [stdout] test tests::shr ... ok
[INFO] [stdout] test tests::sub ... ok
[INFO] [stdout] test tests::xor ... ok
[INFO] [stdout] test tests::not ... ok
[INFO] [stdout] test tests::or ... ok
[INFO] [stdout] test tests::readme_example ... ok
[INFO] [stdout] test tests::ref_option_methods ... ok
[INFO] [stdout] test tests::rem ... ok
[INFO] [stdout] test tests::and ... ok
[INFO] [stdout] test tests::order ... ok
[INFO] [stdout] test tests::add3 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 25 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - (line 19) ... ok
[INFO] [stdout] test src/num.rs - num::Checked<T>::new (line 14) ... ok
[INFO] [stdout] test src/lib.rs - (line 6) ... ok
[INFO] [stdout] test src/lib.rs - (line 56) ... ok
[INFO] [stdout] test src/lib.rs - (line 45) ... ok
[INFO] [stdout] test src/lib.rs - (line 32) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.85s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cb708ce9df6bd98f31f0ff943111101b3249e151fa40894e3da3abcf9464b57f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb708ce9df6bd98f31f0ff943111101b3249e151fa40894e3da3abcf9464b57f", kill_on_drop: false }`
[INFO] [stdout] cb708ce9df6bd98f31f0ff943111101b3249e151fa40894e3da3abcf9464b57f