[INFO] cloning repository https://github.com/javaboy-github/quadratic-equation-calculator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/javaboy-github/quadratic-equation-calculator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjavaboy-github%2Fquadratic-equation-calculator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjavaboy-github%2Fquadratic-equation-calculator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7e6a9f3c0574f5ec23c95e4bed971c3876a4c1c9
[INFO] building javaboy-github/quadratic-equation-calculator against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjavaboy-github%2Fquadratic-equation-calculator" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/javaboy-github/quadratic-equation-calculator on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/javaboy-github/quadratic-equation-calculator
[INFO] finished tweaking git repo https://github.com/javaboy-github/quadratic-equation-calculator
[INFO] tweaked toml for git repo https://github.com/javaboy-github/quadratic-equation-calculator written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/javaboy-github/quadratic-equation-calculator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fraction v0.10.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1284cfe89b10d993079d26efcbdbdae1194f386d8fa5d05f2e1c8a8e13fd9147
[INFO] running `Command { std: "docker" "start" "-a" "1284cfe89b10d993079d26efcbdbdae1194f386d8fa5d05f2e1c8a8e13fd9147", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1284cfe89b10d993079d26efcbdbdae1194f386d8fa5d05f2e1c8a8e13fd9147", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1284cfe89b10d993079d26efcbdbdae1194f386d8fa5d05f2e1c8a8e13fd9147", kill_on_drop: false }`
[INFO] [stdout] 1284cfe89b10d993079d26efcbdbdae1194f386d8fa5d05f2e1c8a8e13fd9147
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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 -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5b5277ece8885f3dc81f5eb520d6e7b1ca2075e2be94646b0c9674dd4012a7a
[INFO] running `Command { std: "docker" "start" "-a" "c5b5277ece8885f3dc81f5eb520d6e7b1ca2075e2be94646b0c9674dd4012a7a", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling fraction v0.10.0
[INFO] [stderr]    Compiling quadratic_equation v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.85s
[INFO] running `Command { std: "docker" "inspect" "c5b5277ece8885f3dc81f5eb520d6e7b1ca2075e2be94646b0c9674dd4012a7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5b5277ece8885f3dc81f5eb520d6e7b1ca2075e2be94646b0c9674dd4012a7a", kill_on_drop: false }`
[INFO] [stdout] c5b5277ece8885f3dc81f5eb520d6e7b1ca2075e2be94646b0c9674dd4012a7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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 -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 87a7cb59cc2f481ba95e012c85ebe8302d5e65fe2dad3a4af949cb242613cade
[INFO] running `Command { std: "docker" "start" "-a" "87a7cb59cc2f481ba95e012c85ebe8302d5e65fe2dad3a4af949cb242613cade", kill_on_drop: false }`
[INFO] [stderr]    Compiling quadratic_equation v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "87a7cb59cc2f481ba95e012c85ebe8302d5e65fe2dad3a4af949cb242613cade", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87a7cb59cc2f481ba95e012c85ebe8302d5e65fe2dad3a4af949cb242613cade", kill_on_drop: false }`
[INFO] [stdout] 87a7cb59cc2f481ba95e012c85ebe8302d5e65fe2dad3a4af949cb242613cade