[INFO] fetching crate sputnikvm-precompiled-modexp 0.11.0-beta.0...
[INFO] checking sputnikvm-precompiled-modexp-0.11.0-beta.0 against try#9cfe725f0995b018340c519db1b2f3cf8a7e0631 for pr-81174
[INFO] extracting crate sputnikvm-precompiled-modexp 0.11.0-beta.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate sputnikvm-precompiled-modexp 0.11.0-beta.0 on toolchain 9cfe725f0995b018340c519db1b2f3cf8a7e0631
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sputnikvm-precompiled-modexp 0.11.0-beta.0
[INFO] finished tweaking crates.io crate sputnikvm-precompiled-modexp 0.11.0-beta.0
[INFO] tweaked toml for crates.io crate sputnikvm-precompiled-modexp 0.11.0-beta.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crypto-mac v0.4.0
[INFO] [stderr]   Downloaded hmac-drbg v0.1.2
[INFO] [stderr]   Downloaded hmac v0.4.2
[INFO] [stderr]   Downloaded libsecp256k1 v0.1.15
[INFO] running `Command { std: "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" "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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "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] 7f66d8d05e113fed89d8f8e2399646dc370c0f59f54ed046ccc4cec5a868efb0
[INFO] running `Command { std: "docker" "start" "-a" "7f66d8d05e113fed89d8f8e2399646dc370c0f59f54ed046ccc4cec5a868efb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f66d8d05e113fed89d8f8e2399646dc370c0f59f54ed046ccc4cec5a868efb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f66d8d05e113fed89d8f8e2399646dc370c0f59f54ed046ccc4cec5a868efb0", kill_on_drop: false }`
[INFO] [stdout] 7f66d8d05e113fed89d8f8e2399646dc370c0f59f54ed046ccc4cec5a868efb0
[INFO] running `Command { std: "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" "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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 9170e0d48557a8c79facd09b2b6269545cf95a3ae28cef2f596c3e306fdcc649
[INFO] running `Command { std: "docker" "start" "-a" "9170e0d48557a8c79facd09b2b6269545cf95a3ae28cef2f596c3e306fdcc649", kill_on_drop: false }`
[INFO] [stderr]     Checking byte-tools v0.2.0
[INFO] [stderr]     Checking etcommon-hexutil v0.2.4
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking elastic-array-plus v0.10.0
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]    Compiling secp256k1-plus v0.5.7
[INFO] [stderr]     Checking generic-array v0.8.3
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking block-buffer v0.2.0
[INFO] [stderr]     Checking digest v0.6.2
[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-rlp v0.2.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking etcommon-bigint v0.2.10
[INFO] [stderr]     Checking etcommon-trie v0.4.0
[INFO] [stderr]     Checking etcommon-bloom v0.2.1
[INFO] [stderr]     Checking etcommon-block-core v0.3.1
[INFO] [stderr]     Checking etcommon-block v0.5.2
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking sputnikvm v0.11.0-beta.0
[INFO] [stderr]     Checking sputnikvm-precompiled-modexp v0.11.0-beta.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.77s
[INFO] running `Command { std: "docker" "inspect" "9170e0d48557a8c79facd09b2b6269545cf95a3ae28cef2f596c3e306fdcc649", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9170e0d48557a8c79facd09b2b6269545cf95a3ae28cef2f596c3e306fdcc649", kill_on_drop: false }`
[INFO] [stdout] 9170e0d48557a8c79facd09b2b6269545cf95a3ae28cef2f596c3e306fdcc649