[INFO] fetching crate cranelift-serde 0.68.0...
[INFO] testing cranelift-serde-0.68.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate cranelift-serde 0.68.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate cranelift-serde 0.68.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cranelift-serde 0.68.0
[INFO] finished tweaking crates.io crate cranelift-serde 0.68.0
[INFO] tweaked toml for crates.io crate cranelift-serde 0.68.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate cranelift-serde 0.68.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 443b9cb286f78329ee290b1a5ebda09306b5d76a7f7e30489f564df5a734f27d
[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" "443b9cb286f78329ee290b1a5ebda09306b5d76a7f7e30489f564df5a734f27d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "443b9cb286f78329ee290b1a5ebda09306b5d76a7f7e30489f564df5a734f27d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "443b9cb286f78329ee290b1a5ebda09306b5d76a7f7e30489f564df5a734f27d", kill_on_drop: false }`
[INFO] [stdout] 443b9cb286f78329ee290b1a5ebda09306b5d76a7f7e30489f564df5a734f27d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34960f9e3db648e56c97afa8ba8bf4506fd83d691bc19cfd1edf2db35d82d29c
[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" "34960f9e3db648e56c97afa8ba8bf4506fd83d691bc19cfd1edf2db35d82d29c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling cranelift-entity v0.68.0
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.68.0
[INFO] [stderr]    Compiling target-lexicon v0.11.1
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling regalloc v0.0.31
[INFO] [stderr]    Compiling gimli v0.22.0
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.68.0
[INFO] [stderr]    Compiling cranelift-bforest v0.68.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling thiserror v1.0.22
[INFO] [stderr]    Compiling cranelift-codegen v0.68.0
[INFO] [stderr]    Compiling cranelift-reader v0.68.0
[INFO] [stderr]    Compiling cranelift-serde v0.68.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 14s
[INFO] running `Command { std: "docker" "inspect" "34960f9e3db648e56c97afa8ba8bf4506fd83d691bc19cfd1edf2db35d82d29c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34960f9e3db648e56c97afa8ba8bf4506fd83d691bc19cfd1edf2db35d82d29c", kill_on_drop: false }`
[INFO] [stdout] 34960f9e3db648e56c97afa8ba8bf4506fd83d691bc19cfd1edf2db35d82d29c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b96c0713396c6c8cd57b16028fc63cc1d2fd336557cba07d2e111810f5838063
[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" "b96c0713396c6c8cd57b16028fc63cc1d2fd336557cba07d2e111810f5838063", kill_on_drop: false }`
[INFO] [stderr]    Compiling cranelift-serde v0.68.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.70s
[INFO] running `Command { std: "docker" "inspect" "b96c0713396c6c8cd57b16028fc63cc1d2fd336557cba07d2e111810f5838063", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b96c0713396c6c8cd57b16028fc63cc1d2fd336557cba07d2e111810f5838063", kill_on_drop: false }`
[INFO] [stdout] b96c0713396c6c8cd57b16028fc63cc1d2fd336557cba07d2e111810f5838063
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7022e33502361c6fa2facbc82b637d6ee938ec81d38df72f5375ae17dffd1687
[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" "7022e33502361c6fa2facbc82b637d6ee938ec81d38df72f5375ae17dffd1687", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/clif_json-e3ced519fc9c2528
[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 `Command { std: "docker" "inspect" "7022e33502361c6fa2facbc82b637d6ee938ec81d38df72f5375ae17dffd1687", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7022e33502361c6fa2facbc82b637d6ee938ec81d38df72f5375ae17dffd1687", kill_on_drop: false }`
[INFO] [stdout] 7022e33502361c6fa2facbc82b637d6ee938ec81d38df72f5375ae17dffd1687