[INFO] fetching crate ark-serialize 0.3.0...
[INFO] testing ark-serialize-0.3.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate ark-serialize 0.3.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate ark-serialize 0.3.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ark-serialize 0.3.0
[INFO] finished tweaking crates.io crate ark-serialize 0.3.0
[INFO] tweaked toml for crates.io crate ark-serialize 0.3.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20c3dce7d4e763a1222a025c4e22ab99217526d00e9d118ae0fd0e28c731a42e
[INFO] running `Command { std: "docker" "start" "-a" "20c3dce7d4e763a1222a025c4e22ab99217526d00e9d118ae0fd0e28c731a42e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20c3dce7d4e763a1222a025c4e22ab99217526d00e9d118ae0fd0e28c731a42e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20c3dce7d4e763a1222a025c4e22ab99217526d00e9d118ae0fd0e28c731a42e", kill_on_drop: false }`
[INFO] [stdout] 20c3dce7d4e763a1222a025c4e22ab99217526d00e9d118ae0fd0e28c731a42e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47b6d9c53a29be26d10b7d3f7264ab97d484c3db287f05dc00be7747b97ccdc2
[INFO] running `Command { std: "docker" "start" "-a" "47b6d9c53a29be26d10b7d3f7264ab97d484c3db287f05dc00be7747b97ccdc2", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling ark-std v0.3.0
[INFO] [stderr]    Compiling ark-serialize v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.39s
[INFO] running `Command { std: "docker" "inspect" "47b6d9c53a29be26d10b7d3f7264ab97d484c3db287f05dc00be7747b97ccdc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47b6d9c53a29be26d10b7d3f7264ab97d484c3db287f05dc00be7747b97ccdc2", kill_on_drop: false }`
[INFO] [stdout] 47b6d9c53a29be26d10b7d3f7264ab97d484c3db287f05dc00be7747b97ccdc2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2278828fc6d85a7d5a3354e31e8f343348c5372ce51266a7c89b658a2770aa55
[INFO] running `Command { std: "docker" "start" "-a" "2278828fc6d85a7d5a3354e31e8f343348c5372ce51266a7c89b658a2770aa55", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling sha2 v0.9.6
[INFO] [stderr]    Compiling sha3 v0.9.1
[INFO] [stderr]    Compiling crypto-mac v0.8.0
[INFO] [stderr]    Compiling blake2 v0.9.2
[INFO] [stderr]    Compiling ark-serialize v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.96s
[INFO] running `Command { std: "docker" "inspect" "2278828fc6d85a7d5a3354e31e8f343348c5372ce51266a7c89b658a2770aa55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2278828fc6d85a7d5a3354e31e8f343348c5372ce51266a7c89b658a2770aa55", kill_on_drop: false }`
[INFO] [stdout] 2278828fc6d85a7d5a3354e31e8f343348c5372ce51266a7c89b658a2770aa55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] babd3099cb95eaed78e522f191c38710fec105e793df46bea203b9f4acae66f1
[INFO] running `Command { std: "docker" "start" "-a" "babd3099cb95eaed78e522f191c38710fec105e793df46bea203b9f4acae66f1", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ark_serialize-faa08ff38eaff55d)
[INFO] [stdout] running 14 tests
[INFO] [stdout] test test::test_sha3 ... ok
[INFO] [stdout] test test::test_string ... ok
[INFO] [stdout] test test::test_btreemap ... ok
[INFO] [stdout] test test::test_option ... ok
[INFO] [stdout] test test::test_btreeset ... ok
[INFO] [stdout] test test::test_rc ... ok
[INFO] [stdout] test test::test_tuple ... ok
[INFO] [stdout] test test::test_phantomdata ... ok
[INFO] [stdout] test test::test_bool ... ok
[INFO] [stdout] test test::test_sha2 ... ok
[INFO] [stdout] test test::test_blake2 ... ok
[INFO] [stdout] test test::test_tuple_vec ... ok
[INFO] [stderr]    Doc-tests ark-serialize
[INFO] [stdout] test test::test_uint ... ok
[INFO] [stdout] test test::test_vec ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - CanonicalSerialize (line 49) ... ok
[INFO] [stdout] test src/lib.rs - CanonicalDeserialize (line 152) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.42s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "babd3099cb95eaed78e522f191c38710fec105e793df46bea203b9f4acae66f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "babd3099cb95eaed78e522f191c38710fec105e793df46bea203b9f4acae66f1", kill_on_drop: false }`
[INFO] [stdout] babd3099cb95eaed78e522f191c38710fec105e793df46bea203b9f4acae66f1