[INFO] fetching crate wrapping_arithmetic 0.1.0...
[INFO] testing wrapping_arithmetic-0.1.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate wrapping_arithmetic 0.1.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate wrapping_arithmetic 0.1.0 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 wrapping_arithmetic 0.1.0
[INFO] finished tweaking crates.io crate wrapping_arithmetic 0.1.0
[INFO] tweaked toml for crates.io crate wrapping_arithmetic 0.1.0 written to /workspace/builds/worker-5/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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] e078b9de0ecc12cb0d4c3d82136abe98efb1b76dd94a7114040c2d4c114ea806
[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" "e078b9de0ecc12cb0d4c3d82136abe98efb1b76dd94a7114040c2d4c114ea806", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e078b9de0ecc12cb0d4c3d82136abe98efb1b76dd94a7114040c2d4c114ea806", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e078b9de0ecc12cb0d4c3d82136abe98efb1b76dd94a7114040c2d4c114ea806", kill_on_drop: false }`
[INFO] [stdout] e078b9de0ecc12cb0d4c3d82136abe98efb1b76dd94a7114040c2d4c114ea806
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 475517627eb464565a1b6b920fdb9506bc1d82d306fbfe4aa2f73523cfc97c62
[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" "475517627eb464565a1b6b920fdb9506bc1d82d306fbfe4aa2f73523cfc97c62", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling wrapping_arithmetic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.58s
[INFO] running `Command { std: "docker" "inspect" "475517627eb464565a1b6b920fdb9506bc1d82d306fbfe4aa2f73523cfc97c62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "475517627eb464565a1b6b920fdb9506bc1d82d306fbfe4aa2f73523cfc97c62", kill_on_drop: false }`
[INFO] [stdout] 475517627eb464565a1b6b920fdb9506bc1d82d306fbfe4aa2f73523cfc97c62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 884e4e0f41e1ee89a92e80040dc02dfd21554fa22ad23134f16265ea99b19e6d
[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" "884e4e0f41e1ee89a92e80040dc02dfd21554fa22ad23134f16265ea99b19e6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling wrapping_arithmetic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this arithmetic operation will overflow
[INFO] [stdout]   --> tests/test_wrapping_arithmetic.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |         a * 2
[INFO] [stdout]    |         ^^^^^ attempt to compute `u32::MAX * 2_u32`, which would overflow
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(arithmetic_overflow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this arithmetic operation will overflow
[INFO] [stdout]   --> tests/test_wrapping_arithmetic.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 84 |         a + 2
[INFO] [stdout]    |         ^^^^^ attempt to compute `u32::MAX + 2_u32`, which would overflow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this arithmetic operation will overflow
[INFO] [stdout]   --> tests/test_wrapping_arithmetic.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |         a *= 2;
[INFO] [stdout]    |         ^^^^^^ attempt to compute `u32::MAX * 2_u32`, which would overflow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this arithmetic operation will overflow
[INFO] [stdout]    --> tests/test_wrapping_arithmetic.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 106 |         a += 2;
[INFO] [stdout]     |         ^^^^^^ attempt to compute `u32::MAX + 2_u32`, which would overflow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.18s
[INFO] running `Command { std: "docker" "inspect" "884e4e0f41e1ee89a92e80040dc02dfd21554fa22ad23134f16265ea99b19e6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "884e4e0f41e1ee89a92e80040dc02dfd21554fa22ad23134f16265ea99b19e6d", kill_on_drop: false }`
[INFO] [stdout] 884e4e0f41e1ee89a92e80040dc02dfd21554fa22ad23134f16265ea99b19e6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c22f77f593a4676957a6ce2a9c7ba91054381e623a16e42338c4e83de56db21e
[INFO] running `Command { std: "docker" "start" "-a" "c22f77f593a4676957a6ce2a9c7ba91054381e623a16e42338c4e83de56db21e", kill_on_drop: false }`
[INFO] [stderr] warning: this arithmetic operation will overflow
[INFO] [stderr]   --> tests/test_wrapping_arithmetic.rs:74:9
[INFO] [stderr]    |
[INFO] [stderr] 74 |         a * 2
[INFO] [stderr]    |         ^^^^^ attempt to compute `u32::MAX * 2_u32`, which would overflow
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(arithmetic_overflow)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: this arithmetic operation will overflow
[INFO] [stderr]   --> tests/test_wrapping_arithmetic.rs:84:9
[INFO] [stderr]    |
[INFO] [stderr] 84 |         a + 2
[INFO] [stderr]    |         ^^^^^ attempt to compute `u32::MAX + 2_u32`, which would overflow
[INFO] [stderr] 
[INFO] [stderr] warning: this arithmetic operation will overflow
[INFO] [stderr]   --> tests/test_wrapping_arithmetic.rs:95:9
[INFO] [stderr]    |
[INFO] [stderr] 95 |         a *= 2;
[INFO] [stderr]    |         ^^^^^^ attempt to compute `u32::MAX * 2_u32`, which would overflow
[INFO] [stderr] 
[INFO] [stderr] warning: this arithmetic operation will overflow
[INFO] [stderr]    --> tests/test_wrapping_arithmetic.rs:106:9
[INFO] [stderr]     |
[INFO] [stderr] 106 |         a += 2;
[INFO] [stderr]     |         ^^^^^^ attempt to compute `u32::MAX + 2_u32`, which would overflow
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/wrapping_arithmetic-7c84a63cf039e19d
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/test_wrapping_arithmetic-46cb6a4e25b54f3c
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test test_sub_assign ... ok
[INFO] [stdout] test test_sub ... ok
[INFO] [stdout] test test_add ... ok
[INFO] [stdout] test test_add_assign ... ok
[INFO] [stdout] test test_mul_assign ... ok
[INFO] [stdout] test test_mul ... ok
[INFO] [stdout] test test_add_panic ... ok
[INFO] [stdout] test test_mul_panic ... ok
[INFO] [stdout] test test_mul_assign_panic ... ok
[INFO] [stdout] test test_add_assign_panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests wrapping_arithmetic
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/wrapping.rs - wrappit (line 117) ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c22f77f593a4676957a6ce2a9c7ba91054381e623a16e42338c4e83de56db21e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c22f77f593a4676957a6ce2a9c7ba91054381e623a16e42338c4e83de56db21e", kill_on_drop: false }`
[INFO] [stdout] c22f77f593a4676957a6ce2a9c7ba91054381e623a16e42338c4e83de56db21e