[INFO] fetching crate ark-std 0.3.0...
[INFO] testing ark-std-0.3.0 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate ark-std 0.3.0 into /workspace/builds/worker-107/source
[INFO] validating manifest of crates.io crate ark-std 0.3.0 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ark-std 0.3.0
[INFO] finished tweaking crates.io crate ark-std 0.3.0
[INFO] tweaked toml for crates.io crate ark-std 0.3.0 written to /workspace/builds/worker-107/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8540d836bf56428ab4f47356d6cf1743eb7a6df2cd32cf4acd20b47092fed40b
[INFO] running `Command { std: "docker" "start" "-a" "8540d836bf56428ab4f47356d6cf1743eb7a6df2cd32cf4acd20b47092fed40b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8540d836bf56428ab4f47356d6cf1743eb7a6df2cd32cf4acd20b47092fed40b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8540d836bf56428ab4f47356d6cf1743eb7a6df2cd32cf4acd20b47092fed40b", kill_on_drop: false }`
[INFO] [stdout] 8540d836bf56428ab4f47356d6cf1743eb7a6df2cd32cf4acd20b47092fed40b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac762987cb80971f911204c16e30de45a81533518898633d51d59fd4fbd7fac0
[INFO] running `Command { std: "docker" "start" "-a" "ac762987cb80971f911204c16e30de45a81533518898633d51d59fd4fbd7fac0", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling ark-std v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.52s
[INFO] running `Command { std: "docker" "inspect" "ac762987cb80971f911204c16e30de45a81533518898633d51d59fd4fbd7fac0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac762987cb80971f911204c16e30de45a81533518898633d51d59fd4fbd7fac0", kill_on_drop: false }`
[INFO] [stdout] ac762987cb80971f911204c16e30de45a81533518898633d51d59fd4fbd7fac0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b99f1718aa6db27df087eaf3ea2ba16f0169b20398b81efa553b647dd023b80a
[INFO] running `Command { std: "docker" "start" "-a" "b99f1718aa6db27df087eaf3ea2ba16f0169b20398b81efa553b647dd023b80a", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling ark-std v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 13.49s
[INFO] running `Command { std: "docker" "inspect" "b99f1718aa6db27df087eaf3ea2ba16f0169b20398b81efa553b647dd023b80a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b99f1718aa6db27df087eaf3ea2ba16f0169b20398b81efa553b647dd023b80a", kill_on_drop: false }`
[INFO] [stdout] b99f1718aa6db27df087eaf3ea2ba16f0169b20398b81efa553b647dd023b80a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 069c66109e5e16273b12e833d7c54a900c7d33ee3d3fa0a9a17985fbf2e4aa1e
[INFO] running `Command { std: "docker" "start" "-a" "069c66109e5e16273b12e833d7c54a900c7d33ee3d3fa0a9a17985fbf2e4aa1e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ark_std-7b9c27e79c0641af)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test perf_trace::tests::print_add ... ok
[INFO] [stdout] test test::test_cfg_macros ... ok
[INFO] [stdout] test perf_trace::tests::print_start_end ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ark-std
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/perf_trace.rs - perf_trace (line 18) ... ok
[INFO] [stdout] test src/lib.rs - log2 (line 56) ... ok
[INFO] [stdout] test src/perf_trace.rs - perf_trace (line 4) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 4.26s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "069c66109e5e16273b12e833d7c54a900c7d33ee3d3fa0a9a17985fbf2e4aa1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "069c66109e5e16273b12e833d7c54a900c7d33ee3d3fa0a9a17985fbf2e4aa1e", kill_on_drop: false }`
[INFO] [stdout] 069c66109e5e16273b12e833d7c54a900c7d33ee3d3fa0a9a17985fbf2e4aa1e
