[INFO] crate pow_sha256 0.2.1 is already in cache
[INFO] testing pow_sha256-0.2.1 against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] extracting crate pow_sha256 0.2.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate pow_sha256 0.2.1 on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate pow_sha256 0.2.1
[INFO] finished tweaking crates.io crate pow_sha256 0.2.1
[INFO] tweaked toml for crates.io crate pow_sha256 0.2.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0fcb2f89cc1902c99018eec1bb6fd8a1f3be59984e9c3dd4a30d316031e1fa03
[INFO] running `"docker" "start" "-a" "0fcb2f89cc1902c99018eec1bb6fd8a1f3be59984e9c3dd4a30d316031e1fa03"`
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling sha2 v0.8.1
[INFO] [stderr]    Compiling bincode v1.2.1
[INFO] [stderr]    Compiling pow_sha256 v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.93s
[INFO] running `"docker" "inspect" "0fcb2f89cc1902c99018eec1bb6fd8a1f3be59984e9c3dd4a30d316031e1fa03"`
[INFO] running `"docker" "rm" "-f" "0fcb2f89cc1902c99018eec1bb6fd8a1f3be59984e9c3dd4a30d316031e1fa03"`
[INFO] [stdout] 0fcb2f89cc1902c99018eec1bb6fd8a1f3be59984e9c3dd4a30d316031e1fa03
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a27f8825f58eee726f5104654c90d366da1db0971cbd4763d466d34d9e4606b4
[INFO] running `"docker" "start" "-a" "a27f8825f58eee726f5104654c90d366da1db0971cbd4763d466d34d9e4606b4"`
[INFO] [stderr]    Compiling pow_sha256 v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.05s
[INFO] running `"docker" "inspect" "a27f8825f58eee726f5104654c90d366da1db0971cbd4763d466d34d9e4606b4"`
[INFO] running `"docker" "rm" "-f" "a27f8825f58eee726f5104654c90d366da1db0971cbd4763d466d34d9e4606b4"`
[INFO] [stdout] a27f8825f58eee726f5104654c90d366da1db0971cbd4763d466d34d9e4606b4
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 709eb8e1dd1974c9adf82d52187f3c2fb42294030258f706402239d38cae7e1e
[INFO] running `"docker" "start" "-a" "709eb8e1dd1974c9adf82d52187f3c2fb42294030258f706402239d38cae7e1e"`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/pow_sha256-e9e024c65341d609
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test::base_functionality ... ok
[INFO] [stdout] test test::double_pow ... ok
[INFO] [stdout] test test::is_not_valid_proof ... ok
[INFO] [stdout] test test::serialization_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests pow_sha256
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "709eb8e1dd1974c9adf82d52187f3c2fb42294030258f706402239d38cae7e1e"`
[INFO] running `"docker" "rm" "-f" "709eb8e1dd1974c9adf82d52187f3c2fb42294030258f706402239d38cae7e1e"`
[INFO] [stdout] 709eb8e1dd1974c9adf82d52187f3c2fb42294030258f706402239d38cae7e1e