[INFO] fetching crate find-real-roots-of-polynomial 0.2.1...
[INFO] checking find-real-roots-of-polynomial-0.2.1 against try#846ec3a7f9ef4a204b2166da3cfc71f4885a5be5 for pr-98000
[INFO] extracting crate find-real-roots-of-polynomial 0.2.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate find-real-roots-of-polynomial 0.2.1 on toolchain 846ec3a7f9ef4a204b2166da3cfc71f4885a5be5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+846ec3a7f9ef4a204b2166da3cfc71f4885a5be5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate find-real-roots-of-polynomial 0.2.1
[INFO] finished tweaking crates.io crate find-real-roots-of-polynomial 0.2.1
[INFO] tweaked toml for crates.io crate find-real-roots-of-polynomial 0.2.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+846ec3a7f9ef4a204b2166da3cfc71f4885a5be5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+846ec3a7f9ef4a204b2166da3cfc71f4885a5be5" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+846ec3a7f9ef4a204b2166da3cfc71f4885a5be5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1e903f03665721a7102430ad216db71d0df1449341f3de2ba36144429d60e0ce
[INFO] running `Command { std: "docker" "start" "-a" "1e903f03665721a7102430ad216db71d0df1449341f3de2ba36144429d60e0ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e903f03665721a7102430ad216db71d0df1449341f3de2ba36144429d60e0ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e903f03665721a7102430ad216db71d0df1449341f3de2ba36144429d60e0ce", kill_on_drop: false }`
[INFO] [stdout] 1e903f03665721a7102430ad216db71d0df1449341f3de2ba36144429d60e0ce
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+846ec3a7f9ef4a204b2166da3cfc71f4885a5be5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 693c373c2336d4c5afbfdbadc062e7f0ba410466ed4399b62f3572a24246320e
[INFO] running `Command { std: "docker" "start" "-a" "693c373c2336d4c5afbfdbadc062e7f0ba410466ed4399b62f3572a24246320e", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.4.8
[INFO] [stderr]    Compiling az v1.2.0
[INFO] [stderr]    Compiling rug v1.16.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking num-complex v0.4.2
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking ring-algorithm v0.4.5
[INFO] [stderr]     Checking polynomial-ring v0.4.3
[INFO] [stderr]     Checking find-real-roots-of-polynomial v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5m 05s
[INFO] running `Command { std: "docker" "inspect" "693c373c2336d4c5afbfdbadc062e7f0ba410466ed4399b62f3572a24246320e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "693c373c2336d4c5afbfdbadc062e7f0ba410466ed4399b62f3572a24246320e", kill_on_drop: false }`
[INFO] [stdout] 693c373c2336d4c5afbfdbadc062e7f0ba410466ed4399b62f3572a24246320e