[INFO] fetching crate find-real-roots-of-polynomial 0.2.1...
[INFO] testing find-real-roots-of-polynomial-0.2.1 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate find-real-roots-of-polynomial 0.2.1 into /workspace/builds/worker-46/source
[INFO] validating manifest of crates.io crate find-real-roots-of-polynomial 0.2.1 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-46/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 799786ab4b8f094fe461af5f60c9ef24bfa33d1885c4e525a0c2e23bd0c5b525
[INFO] running `Command { std: "docker" "start" "-a" "799786ab4b8f094fe461af5f60c9ef24bfa33d1885c4e525a0c2e23bd0c5b525", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "799786ab4b8f094fe461af5f60c9ef24bfa33d1885c4e525a0c2e23bd0c5b525", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "799786ab4b8f094fe461af5f60c9ef24bfa33d1885c4e525a0c2e23bd0c5b525", kill_on_drop: false }`
[INFO] [stdout] 799786ab4b8f094fe461af5f60c9ef24bfa33d1885c4e525a0c2e23bd0c5b525
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cffbfb1df6dfbebb006f60e0d1920d5fb1ab24b9729d8913e5d4b11f700d5bb7
[INFO] running `Command { std: "docker" "start" "-a" "cffbfb1df6dfbebb006f60e0d1920d5fb1ab24b9729d8913e5d4b11f700d5bb7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling take_mut v0.2.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling ring-algorithm v0.4.0
[INFO] [stderr]    Compiling polynomial-ring v0.4.1
[INFO] [stderr]    Compiling find-real-roots-of-polynomial v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.33s
[INFO] running `Command { std: "docker" "inspect" "cffbfb1df6dfbebb006f60e0d1920d5fb1ab24b9729d8913e5d4b11f700d5bb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cffbfb1df6dfbebb006f60e0d1920d5fb1ab24b9729d8913e5d4b11f700d5bb7", kill_on_drop: false }`
[INFO] [stdout] cffbfb1df6dfbebb006f60e0d1920d5fb1ab24b9729d8913e5d4b11f700d5bb7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c79791cdbe88b744aa429320dbb4def00b68ecc3c9afebeb6fc90eb33b4ab5c
[INFO] running `Command { std: "docker" "start" "-a" "5c79791cdbe88b744aa429320dbb4def00b68ecc3c9afebeb6fc90eb33b4ab5c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling num v0.4.0
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling find-real-roots-of-polynomial v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.35s
[INFO] running `Command { std: "docker" "inspect" "5c79791cdbe88b744aa429320dbb4def00b68ecc3c9afebeb6fc90eb33b4ab5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c79791cdbe88b744aa429320dbb4def00b68ecc3c9afebeb6fc90eb33b4ab5c", kill_on_drop: false }`
[INFO] [stdout] 5c79791cdbe88b744aa429320dbb4def00b68ecc3c9afebeb6fc90eb33b4ab5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d812b4c8465af530c5c08fa76bcb5ab917356d3a4a591d937ffd4a76168f89e0
[INFO] running `Command { std: "docker" "start" "-a" "d812b4c8465af530c5c08fa76bcb5ab917356d3a4a591d937ffd4a76168f89e0", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/find_real_roots_of_polynomial-4789525f92aa57e7)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test random_test ... ok
[INFO] [stdout] test a has been running for over 60 seconds
[INFO] [stdout] test a ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 94.26s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests find-real-roots-of-polynomial
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - bisection_method (line 60) ... ok
[INFO] [stdout] test src/lib.rs - SturmChain<K>::strum_method (line 197) ... ok
[INFO] [stdout] test src/lib.rs - SturmChain<K>::find_all_real_roots (line 246) ... ok
[INFO] [stdout] test src/lib.rs - SturmChain (line 102) ... ok
[INFO] [stdout] test src/lib.rs - (line 3) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.78s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d812b4c8465af530c5c08fa76bcb5ab917356d3a4a591d937ffd4a76168f89e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d812b4c8465af530c5c08fa76bcb5ab917356d3a4a591d937ffd4a76168f89e0", kill_on_drop: false }`
[INFO] [stdout] d812b4c8465af530c5c08fa76bcb5ab917356d3a4a591d937ffd4a76168f89e0