[INFO] fetching crate lucas_lehmer 0.1.0...
[INFO] checking lucas_lehmer-0.1.0 against try#ffa4a0215752773248fb0f0a8092f1c3e7907e9e for pr-75585
[INFO] extracting crate lucas_lehmer 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate lucas_lehmer 0.1.0 on toolchain ffa4a0215752773248fb0f0a8092f1c3e7907e9e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lucas_lehmer 0.1.0
[INFO] finished tweaking crates.io crate lucas_lehmer 0.1.0
[INFO] tweaked toml for crates.io crate lucas_lehmer 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ieee754 v0.2.6
[INFO] [stderr]   Downloaded primal-check v0.2.3
[INFO] [stderr]   Downloaded primal v0.2.3
[INFO] [stderr]   Downloaded hamming v0.1.3
[INFO] [stderr]   Downloaded primal-estimate v0.2.1
[INFO] [stderr]   Downloaded primal-bit v0.2.4
[INFO] [stderr]   Downloaded ramp v0.5.9
[INFO] [stderr]   Downloaded primal-sieve v0.2.9
[INFO] [stderr]   Downloaded rustc-cfg v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f81fdac08122f96bf319a7d46ace48610ab17d49a5cf2391414af45b040f86c1
[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" "f81fdac08122f96bf319a7d46ace48610ab17d49a5cf2391414af45b040f86c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f81fdac08122f96bf319a7d46ace48610ab17d49a5cf2391414af45b040f86c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f81fdac08122f96bf319a7d46ace48610ab17d49a5cf2391414af45b040f86c1", kill_on_drop: false }`
[INFO] [stdout] f81fdac08122f96bf319a7d46ace48610ab17d49a5cf2391414af45b040f86c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 02a94140b4d6d3fd00eb4e2dcf95f57703f8dee6d04d45d7c9ee184ccf51f3f7
[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" "02a94140b4d6d3fd00eb4e2dcf95f57703f8dee6d04d45d7c9ee184ccf51f3f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]     Checking hamming v0.1.3
[INFO] [stderr]    Compiling rustc-cfg v0.2.0
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking primal-estimate v0.2.1
[INFO] [stderr]     Checking ieee754 v0.2.6
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking primal-bit v0.2.4
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking primal-sieve v0.2.9
[INFO] [stderr]     Checking primal-check v0.2.3
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking primal v0.2.3
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling ramp v0.5.9
[INFO] [stderr]     Checking lucas_lehmer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.97s
[INFO] running `Command { std: "docker" "inspect" "02a94140b4d6d3fd00eb4e2dcf95f57703f8dee6d04d45d7c9ee184ccf51f3f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02a94140b4d6d3fd00eb4e2dcf95f57703f8dee6d04d45d7c9ee184ccf51f3f7", kill_on_drop: false }`
[INFO] [stdout] 02a94140b4d6d3fd00eb4e2dcf95f57703f8dee6d04d45d7c9ee184ccf51f3f7