[INFO] cloning repository https://github.com/kenny08gt/rust-terminal-calculator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kenny08gt/rust-terminal-calculator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkenny08gt%2Frust-terminal-calculator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkenny08gt%2Frust-terminal-calculator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5fe0d43e4cc5835a6af86f161c5446e2dbd65a73
[INFO] checking kenny08gt/rust-terminal-calculator against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkenny08gt%2Frust-terminal-calculator" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kenny08gt/rust-terminal-calculator on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kenny08gt/rust-terminal-calculator
[INFO] finished tweaking git repo https://github.com/kenny08gt/rust-terminal-calculator
[INFO] tweaked toml for git repo https://github.com/kenny08gt/rust-terminal-calculator written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kenny08gt/rust-terminal-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3cd4956ba605a66af44c4ed9a7217ca0f4873aa2078a57825e2bceb183ff3d43
[INFO] running `Command { std: "docker" "start" "-a" "3cd4956ba605a66af44c4ed9a7217ca0f4873aa2078a57825e2bceb183ff3d43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3cd4956ba605a66af44c4ed9a7217ca0f4873aa2078a57825e2bceb183ff3d43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cd4956ba605a66af44c4ed9a7217ca0f4873aa2078a57825e2bceb183ff3d43", kill_on_drop: false }`
[INFO] [stdout] 3cd4956ba605a66af44c4ed9a7217ca0f4873aa2078a57825e2bceb183ff3d43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e0a4dc47be997a71995a3e790743f3d73542134d705be7ac2130912c7d061c5
[INFO] running `Command { std: "docker" "start" "-a" "9e0a4dc47be997a71995a3e790743f3d73542134d705be7ac2130912c7d061c5", kill_on_drop: false }`
[INFO] [stderr]     Checking regex v1.7.1
[INFO] [stderr]     Checking rust-calculadora-platzi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Captures`
[INFO] [stdout]  --> src/main.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use regex::{Captures, Regex};
[INFO] [stdout]   |             ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Captures`
[INFO] [stdout]  --> src/main.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use regex::{Captures, Regex};
[INFO] [stdout]   |             ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "9e0a4dc47be997a71995a3e790743f3d73542134d705be7ac2130912c7d061c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e0a4dc47be997a71995a3e790743f3d73542134d705be7ac2130912c7d061c5", kill_on_drop: false }`
[INFO] [stdout] 9e0a4dc47be997a71995a3e790743f3d73542134d705be7ac2130912c7d061c5
[INFO] checking kenny08gt/rust-terminal-calculator against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkenny08gt%2Frust-terminal-calculator" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kenny08gt/rust-terminal-calculator on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kenny08gt/rust-terminal-calculator
[INFO] finished tweaking git repo https://github.com/kenny08gt/rust-terminal-calculator
[INFO] tweaked toml for git repo https://github.com/kenny08gt/rust-terminal-calculator written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/kenny08gt/rust-terminal-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f9af91c4f537ae178ebeb7f647a524919e2d32e4694016c1be4ce26ac2bb59d9
[INFO] running `Command { std: "docker" "start" "-a" "f9af91c4f537ae178ebeb7f647a524919e2d32e4694016c1be4ce26ac2bb59d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9af91c4f537ae178ebeb7f647a524919e2d32e4694016c1be4ce26ac2bb59d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9af91c4f537ae178ebeb7f647a524919e2d32e4694016c1be4ce26ac2bb59d9", kill_on_drop: false }`
[INFO] [stdout] f9af91c4f537ae178ebeb7f647a524919e2d32e4694016c1be4ce26ac2bb59d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b084fe9c075c39ff693857d8c86d54306dd95326b9f284474f29e649cd2601d
[INFO] running `Command { std: "docker" "start" "-a" "2b084fe9c075c39ff693857d8c86d54306dd95326b9f284474f29e649cd2601d", kill_on_drop: false }`
[INFO] [stderr]     Checking regex v1.7.1
[INFO] [stderr]     Checking rust-calculadora-platzi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Captures`
[INFO] [stdout]  --> src/main.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use regex::{Captures, Regex};
[INFO] [stdout]   |             ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Captures`
[INFO] [stdout]  --> src/main.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use regex::{Captures, Regex};
[INFO] [stdout]   |             ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.18s
[INFO] running `Command { std: "docker" "inspect" "2b084fe9c075c39ff693857d8c86d54306dd95326b9f284474f29e649cd2601d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b084fe9c075c39ff693857d8c86d54306dd95326b9f284474f29e649cd2601d", kill_on_drop: false }`
[INFO] [stdout] 2b084fe9c075c39ff693857d8c86d54306dd95326b9f284474f29e649cd2601d