[INFO] fetching crate sputnikvm-callback 0.1.0...
[INFO] testing sputnikvm-callback-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate sputnikvm-callback 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate sputnikvm-callback 0.1.0 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 sputnikvm-callback 0.1.0
[INFO] finished tweaking crates.io crate sputnikvm-callback 0.1.0
[INFO] tweaked toml for crates.io crate sputnikvm-callback 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 613076ffcfc41d98ec97ae6951bf9c06f42e349c595b57885066cb5aaa4829b6
[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" "613076ffcfc41d98ec97ae6951bf9c06f42e349c595b57885066cb5aaa4829b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "613076ffcfc41d98ec97ae6951bf9c06f42e349c595b57885066cb5aaa4829b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "613076ffcfc41d98ec97ae6951bf9c06f42e349c595b57885066cb5aaa4829b6", kill_on_drop: false }`
[INFO] [stdout] 613076ffcfc41d98ec97ae6951bf9c06f42e349c595b57885066cb5aaa4829b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] c5121b72754ba3db54bc5bd39620727c077ea20a690bfec666124065990d8e0e
[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" "c5121b72754ba3db54bc5bd39620727c077ea20a690bfec666124065990d8e0e", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling blockchain v0.2.0
[INFO] [stderr]    Compiling etcommon-rlp v0.2.5
[INFO] [stderr]    Compiling etcommon-bigint v0.2.10
[INFO] [stderr]    Compiling etcommon-trie v0.3.11
[INFO] [stderr]    Compiling etcommon-block-core v0.1.0
[INFO] [stderr]    Compiling etcommon-bloom v0.2.1
[INFO] [stderr]    Compiling etcommon-block v0.3.4
[INFO] [stderr]    Compiling sputnikvm v0.7.8
[INFO] [stderr]    Compiling sputnikvm-callback v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.04s
[INFO] running `Command { std: "docker" "inspect" "c5121b72754ba3db54bc5bd39620727c077ea20a690bfec666124065990d8e0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5121b72754ba3db54bc5bd39620727c077ea20a690bfec666124065990d8e0e", kill_on_drop: false }`
[INFO] [stdout] c5121b72754ba3db54bc5bd39620727c077ea20a690bfec666124065990d8e0e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 9f50c86b65f3c36db8d595714a46d9aa9d7380a0adec07fed59102f1439fcf7b
[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" "9f50c86b65f3c36db8d595714a46d9aa9d7380a0adec07fed59102f1439fcf7b", kill_on_drop: false }`
[INFO] [stderr]    Compiling sputnikvm-callback v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "9f50c86b65f3c36db8d595714a46d9aa9d7380a0adec07fed59102f1439fcf7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f50c86b65f3c36db8d595714a46d9aa9d7380a0adec07fed59102f1439fcf7b", kill_on_drop: false }`
[INFO] [stdout] 9f50c86b65f3c36db8d595714a46d9aa9d7380a0adec07fed59102f1439fcf7b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 65de7405e78a2a6599736a9e7734cbf9ba9a4fd609dbde4caa9532f387cae0c3
[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" "65de7405e78a2a6599736a9e7734cbf9ba9a4fd609dbde4caa9532f387cae0c3", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sputnikvm_callback-446d7881f781eb34
[INFO] [stderr]    Doc-tests sputnikvm-callback
[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] [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" "65de7405e78a2a6599736a9e7734cbf9ba9a4fd609dbde4caa9532f387cae0c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65de7405e78a2a6599736a9e7734cbf9ba9a4fd609dbde4caa9532f387cae0c3", kill_on_drop: false }`
[INFO] [stdout] 65de7405e78a2a6599736a9e7734cbf9ba9a4fd609dbde4caa9532f387cae0c3