[INFO] fetching crate sputnikvm-callback 0.1.0...
[INFO] checking sputnikvm-callback-0.1.0 against try#6f12b8fe67b4eed2e838dab803ed9493b9d62c0f for pr-79073
[INFO] extracting crate sputnikvm-callback 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate sputnikvm-callback 0.1.0 on toolchain 6f12b8fe67b4eed2e838dab803ed9493b9d62c0f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "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-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aff25c4ace469a040a166abd7ed96f66ae4ead2e120ba116d9fb926cdb06d8de
[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" "aff25c4ace469a040a166abd7ed96f66ae4ead2e120ba116d9fb926cdb06d8de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aff25c4ace469a040a166abd7ed96f66ae4ead2e120ba116d9fb926cdb06d8de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aff25c4ace469a040a166abd7ed96f66ae4ead2e120ba116d9fb926cdb06d8de", kill_on_drop: false }`
[INFO] [stdout] aff25c4ace469a040a166abd7ed96f66ae4ead2e120ba116d9fb926cdb06d8de
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f7bd2151480da87c73aad2351f379ee674aacb0f847386a5e4571634ac6923c8
[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" "f7bd2151480da87c73aad2351f379ee674aacb0f847386a5e4571634ac6923c8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]     Checking byte-tools v0.2.0
[INFO] [stderr]     Checking elastic-array-plus v0.10.0
[INFO] [stderr]     Checking etcommon-hexutil v0.2.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking odds v0.2.26
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking blockchain v0.2.0
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking etcommon-rlp v0.2.5
[INFO] [stderr]     Checking arrayvec v0.3.25
[INFO] [stderr]    Compiling secp256k1-plus v0.5.7
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking generic-array v0.8.3
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking block-buffer v0.2.0
[INFO] [stderr]     Checking digest v0.6.2
[INFO] [stderr]     Checking etcommon-bigint v0.2.10
[INFO] [stderr]     Checking sha3 v0.6.0
[INFO] [stderr]     Checking sha2 v0.6.0
[INFO] [stderr]     Checking ripemd160 v0.6.0
[INFO] [stderr]     Checking etcommon-block-core v0.1.0
[INFO] [stderr]     Checking etcommon-bloom v0.2.1
[INFO] [stderr]     Checking etcommon-trie v0.3.11
[INFO] [stderr]     Checking etcommon-block v0.3.4
[INFO] [stderr]     Checking sputnikvm v0.7.8
[INFO] [stderr]     Checking sputnikvm-callback v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.43s
[INFO] running `Command { std: "docker" "inspect" "f7bd2151480da87c73aad2351f379ee674aacb0f847386a5e4571634ac6923c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7bd2151480da87c73aad2351f379ee674aacb0f847386a5e4571634ac6923c8", kill_on_drop: false }`
[INFO] [stdout] f7bd2151480da87c73aad2351f379ee674aacb0f847386a5e4571634ac6923c8