[INFO] cloning repository https://github.com/Techno-coder/calculator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Techno-coder/calculator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTechno-coder%2Fcalculator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTechno-coder%2Fcalculator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e65b59fdec94b8c9898a19439dce9d7712280f16
[INFO] checking Techno-coder/calculator against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTechno-coder%2Fcalculator" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Techno-coder/calculator on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Techno-coder/calculator
[INFO] finished tweaking git repo https://github.com/Techno-coder/calculator
[INFO] tweaked toml for git repo https://github.com/Techno-coder/calculator written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/Techno-coder/calculator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crossterm_style v0.5.2
[INFO] [stderr]   Downloaded crossterm_terminal v0.3.2
[INFO] [stderr]   Downloaded crossterm_winapi v0.3.0
[INFO] [stderr]   Downloaded crossterm_screen v0.3.2
[INFO] [stderr]   Downloaded crossterm_utils v0.4.0
[INFO] [stderr]   Downloaded crossterm_cursor v0.4.0
[INFO] [stderr]   Downloaded crossterm_input v0.5.0
[INFO] [stderr]   Downloaded crossterm v0.12.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a307557d76f130f147dc2a90ad4d7197edb8742730ba5efe37ff8b87a7b64555
[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" "a307557d76f130f147dc2a90ad4d7197edb8742730ba5efe37ff8b87a7b64555", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a307557d76f130f147dc2a90ad4d7197edb8742730ba5efe37ff8b87a7b64555", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a307557d76f130f147dc2a90ad4d7197edb8742730ba5efe37ff8b87a7b64555", kill_on_drop: false }`
[INFO] [stdout] a307557d76f130f147dc2a90ad4d7197edb8742730ba5efe37ff8b87a7b64555
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] feb4e39427e17d399b19f9c1176fcc19329e807f728de1032edd7bfe90d84a8e
[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" "feb4e39427e17d399b19f9c1176fcc19329e807f728de1032edd7bfe90d84a8e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]     Checking crossterm_utils v0.4.0
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking crossterm_screen v0.3.2
[INFO] [stderr]     Checking crossterm_style v0.5.2
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking crossterm_input v0.5.0
[INFO] [stderr]     Checking crossterm_cursor v0.4.0
[INFO] [stderr]     Checking crossterm_terminal v0.3.2
[INFO] [stderr]     Checking crossterm v0.12.0
[INFO] [stderr]     Checking calculator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.58s
[INFO] running `Command { std: "docker" "inspect" "feb4e39427e17d399b19f9c1176fcc19329e807f728de1032edd7bfe90d84a8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "feb4e39427e17d399b19f9c1176fcc19329e807f728de1032edd7bfe90d84a8e", kill_on_drop: false }`
[INFO] [stdout] feb4e39427e17d399b19f9c1176fcc19329e807f728de1032edd7bfe90d84a8e