[INFO] fetching crate horner 0.2.2...
[INFO] testing horner-0.2.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate horner 0.2.2 into /workspace/builds/worker-86/source
[INFO] validating manifest of crates.io crate horner 0.2.2 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate horner 0.2.2
[INFO] finished tweaking crates.io crate horner 0.2.2
[INFO] tweaked toml for crates.io crate horner 0.2.2 written to /workspace/builds/worker-86/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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" "+1.55.0" "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-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9fee8acb27cc75437865b59f463142f2271da9d7959db3aade2ccd2486053079
[INFO] running `Command { std: "docker" "start" "-a" "9fee8acb27cc75437865b59f463142f2271da9d7959db3aade2ccd2486053079", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9fee8acb27cc75437865b59f463142f2271da9d7959db3aade2ccd2486053079", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fee8acb27cc75437865b59f463142f2271da9d7959db3aade2ccd2486053079", kill_on_drop: false }`
[INFO] [stdout] 9fee8acb27cc75437865b59f463142f2271da9d7959db3aade2ccd2486053079
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5de1c567f94a566acb6ca29eb0d405794121dd7afa60920dfc13a579f4809cae
[INFO] running `Command { std: "docker" "start" "-a" "5de1c567f94a566acb6ca29eb0d405794121dd7afa60920dfc13a579f4809cae", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling horner v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.19s
[INFO] running `Command { std: "docker" "inspect" "5de1c567f94a566acb6ca29eb0d405794121dd7afa60920dfc13a579f4809cae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5de1c567f94a566acb6ca29eb0d405794121dd7afa60920dfc13a579f4809cae", kill_on_drop: false }`
[INFO] [stdout] 5de1c567f94a566acb6ca29eb0d405794121dd7afa60920dfc13a579f4809cae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac91c6ccb3c94482382f5f6a10b62db01cfee33e6dbe4fc32d506abac5107ed6
[INFO] running `Command { std: "docker" "start" "-a" "ac91c6ccb3c94482382f5f6a10b62db01cfee33e6dbe4fc32d506abac5107ed6", kill_on_drop: false }`
[INFO] [stderr]    Compiling horner v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "ac91c6ccb3c94482382f5f6a10b62db01cfee33e6dbe4fc32d506abac5107ed6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac91c6ccb3c94482382f5f6a10b62db01cfee33e6dbe4fc32d506abac5107ed6", kill_on_drop: false }`
[INFO] [stdout] ac91c6ccb3c94482382f5f6a10b62db01cfee33e6dbe4fc32d506abac5107ed6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e0e4e86022a897b51d7949af5f492f00ad99d1b7d082e19e3b0bbbf64f11f523
[INFO] running `Command { std: "docker" "start" "-a" "e0e4e86022a897b51d7949af5f492f00ad99d1b7d082e19e3b0bbbf64f11f523", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/horner-1079c63a79835f24)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests horner
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - eval_any_rank_polynomial (line 48) ... ok
[INFO] [stdout] test src/lib.rs - eval_any_rank_polynomial (line 18) ... ok
[INFO] [stdout] test src/lib.rs - eval_any_rank_polynomial (line 36) ... ok
[INFO] [stdout] test src/lib.rs - eval_known_rank_polynomial (line 77) ... ok
[INFO] [stdout] test src/lib.rs - eval_any_rank_polynomial (line 30) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.48s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e0e4e86022a897b51d7949af5f492f00ad99d1b7d082e19e3b0bbbf64f11f523", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0e4e86022a897b51d7949af5f492f00ad99d1b7d082e19e3b0bbbf64f11f523", kill_on_drop: false }`
[INFO] [stdout] e0e4e86022a897b51d7949af5f492f00ad99d1b7d082e19e3b0bbbf64f11f523