[INFO] fetching crate ark-serialize 0.3.0...
[INFO] testing ark-serialize-0.3.0 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate ark-serialize 0.3.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate ark-serialize 0.3.0 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", 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] 0a5359b2337dcdbe93096162192f38271a07da26dc217eee3b87b970ddfe4b29
[INFO] running `Command { std: "docker" "start" "-a" "0a5359b2337dcdbe93096162192f38271a07da26dc217eee3b87b970ddfe4b29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a5359b2337dcdbe93096162192f38271a07da26dc217eee3b87b970ddfe4b29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a5359b2337dcdbe93096162192f38271a07da26dc217eee3b87b970ddfe4b29", kill_on_drop: false }`
[INFO] [stdout] 0a5359b2337dcdbe93096162192f38271a07da26dc217eee3b87b970ddfe4b29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b4bb01d2ed7d0d576f1477627bdcc4f92297b599b690a477061117a0e9e549ed
[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" "b4bb01d2ed7d0d576f1477627bdcc4f92297b599b690a477061117a0e9e549ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling ark-std v0.3.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling ark-serialize v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.33s
[INFO] running `Command { std: "docker" "inspect" "b4bb01d2ed7d0d576f1477627bdcc4f92297b599b690a477061117a0e9e549ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4bb01d2ed7d0d576f1477627bdcc4f92297b599b690a477061117a0e9e549ed", kill_on_drop: false }`
[INFO] [stdout] b4bb01d2ed7d0d576f1477627bdcc4f92297b599b690a477061117a0e9e549ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c984320d27e092cc02b6a7fc4ad98f3ad67545406f7e1320f79e9c8611d11b6
[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" "2c984320d27e092cc02b6a7fc4ad98f3ad67545406f7e1320f79e9c8611d11b6", kill_on_drop: false }`
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling block-padding v0.2.1
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling cpufeatures v0.2.1
[INFO] [stderr]    Compiling keccak v0.1.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling crypto-mac v0.8.0
[INFO] [stderr]    Compiling sha2 v0.9.8
[INFO] [stderr]    Compiling sha3 v0.9.1
[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 6.76s
[INFO] running `Command { std: "docker" "inspect" "2c984320d27e092cc02b6a7fc4ad98f3ad67545406f7e1320f79e9c8611d11b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c984320d27e092cc02b6a7fc4ad98f3ad67545406f7e1320f79e9c8611d11b6", kill_on_drop: false }`
[INFO] [stdout] 2c984320d27e092cc02b6a7fc4ad98f3ad67545406f7e1320f79e9c8611d11b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 616029b47a68ccad7411caf185eed407341c8a40eacff214a933880ec313e7f3
[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" "616029b47a68ccad7411caf185eed407341c8a40eacff214a933880ec313e7f3", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ark_serialize-51faf5d6e6693880)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test test::test_option ... ok
[INFO] [stdout] test test::test_rc ... ok
[INFO] [stdout] test test::test_string ... ok
[INFO] [stdout] test test::test_tuple ... ok
[INFO] [stdout] test test::test_sha2 ... ok
[INFO] [stdout] test test::test_uint ... ok
[INFO] [stdout] test test::test_btreemap ... ok
[INFO] [stdout] test test::test_btreeset ... ok
[INFO] [stdout] test test::test_tuple_vec ... ok
[INFO] [stdout] test test::test_phantomdata ... ok
[INFO] [stdout] test test::test_bool ... ok
[INFO] [stdout] test test::test_vec ... ok
[INFO] [stdout] test test::test_blake2 ... ok
[INFO] [stdout] test test::test_sha3 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ark-serialize
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - CanonicalDeserialize (line 152) ... ok
[INFO] [stdout] test src/lib.rs - CanonicalSerialize (line 49) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.61s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "616029b47a68ccad7411caf185eed407341c8a40eacff214a933880ec313e7f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "616029b47a68ccad7411caf185eed407341c8a40eacff214a933880ec313e7f3", kill_on_drop: false }`
[INFO] [stdout] 616029b47a68ccad7411caf185eed407341c8a40eacff214a933880ec313e7f3