[INFO] fetching crate serde-feature-hack 0.2.1...
[INFO] testing serde-feature-hack-0.2.1 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate serde-feature-hack 0.2.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate serde-feature-hack 0.2.1 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde-feature-hack 0.2.1
[INFO] finished tweaking crates.io crate serde-feature-hack 0.2.1
[INFO] tweaked toml for crates.io crate serde-feature-hack 0.2.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "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] 649f114b20eb11ef14c02a90dcbab77f487b883a506baaff36203758fb0c8a1a
[INFO] running `Command { std: "docker" "start" "-a" "649f114b20eb11ef14c02a90dcbab77f487b883a506baaff36203758fb0c8a1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "649f114b20eb11ef14c02a90dcbab77f487b883a506baaff36203758fb0c8a1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "649f114b20eb11ef14c02a90dcbab77f487b883a506baaff36203758fb0c8a1a", kill_on_drop: false }`
[INFO] [stdout] 649f114b20eb11ef14c02a90dcbab77f487b883a506baaff36203758fb0c8a1a
[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=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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08fd84f9bf634ea9c5e751436d5e28adf449d523597adcd9fc648bf92f5fa182
[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" "08fd84f9bf634ea9c5e751436d5e28adf449d523597adcd9fc648bf92f5fa182", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling serde-feature-hack v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.34s
[INFO] running `Command { std: "docker" "inspect" "08fd84f9bf634ea9c5e751436d5e28adf449d523597adcd9fc648bf92f5fa182", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08fd84f9bf634ea9c5e751436d5e28adf449d523597adcd9fc648bf92f5fa182", kill_on_drop: false }`
[INFO] [stdout] 08fd84f9bf634ea9c5e751436d5e28adf449d523597adcd9fc648bf92f5fa182
[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=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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 66c43bd20a65e50697a82645be01201adffa66ff8767d7f60b43a0e39a80a160
[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" "66c43bd20a65e50697a82645be01201adffa66ff8767d7f60b43a0e39a80a160", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling serde-feature-hack v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.08s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/serde-b7fc34be6ab42c4e)
[INFO] running `Command { std: "docker" "inspect" "66c43bd20a65e50697a82645be01201adffa66ff8767d7f60b43a0e39a80a160", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66c43bd20a65e50697a82645be01201adffa66ff8767d7f60b43a0e39a80a160", kill_on_drop: false }`
[INFO] [stdout] 66c43bd20a65e50697a82645be01201adffa66ff8767d7f60b43a0e39a80a160
[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=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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "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] 7c8234b99e1a13c640a0ab25db5f9dcbc78e10ce5d97aaf2e48d902a2f696e81
[INFO] running `Command { std: "docker" "start" "-a" "7c8234b99e1a13c640a0ab25db5f9dcbc78e10ce5d97aaf2e48d902a2f696e81", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/serde-b7fc34be6ab42c4e)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests serde
[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 1 test
[INFO] [stdout] test src/lib.rs - (line 19) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.74s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7c8234b99e1a13c640a0ab25db5f9dcbc78e10ce5d97aaf2e48d902a2f696e81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c8234b99e1a13c640a0ab25db5f9dcbc78e10ce5d97aaf2e48d902a2f696e81", kill_on_drop: false }`
[INFO] [stdout] 7c8234b99e1a13c640a0ab25db5f9dcbc78e10ce5d97aaf2e48d902a2f696e81