[INFO] cloning repository https://github.com/Daxorinator/rust-graphing-equations
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Daxorinator/rust-graphing-equations" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDaxorinator%2Frust-graphing-equations", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDaxorinator%2Frust-graphing-equations'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a4519c059869f058773ab4a1e150083dd7ac2f50
[INFO] checking Daxorinator/rust-graphing-equations against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDaxorinator%2Frust-graphing-equations" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Daxorinator/rust-graphing-equations on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Daxorinator/rust-graphing-equations
[INFO] finished tweaking git repo https://github.com/Daxorinator/rust-graphing-equations
[INFO] tweaked toml for git repo https://github.com/Daxorinator/rust-graphing-equations written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/Daxorinator/rust-graphing-equations already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ed327da71e6336aca015eea0c387f9b7a8205716bbd66fcddf92dbacb6eb1cc9
[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" "ed327da71e6336aca015eea0c387f9b7a8205716bbd66fcddf92dbacb6eb1cc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed327da71e6336aca015eea0c387f9b7a8205716bbd66fcddf92dbacb6eb1cc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed327da71e6336aca015eea0c387f9b7a8205716bbd66fcddf92dbacb6eb1cc9", kill_on_drop: false }`
[INFO] [stdout] ed327da71e6336aca015eea0c387f9b7a8205716bbd66fcddf92dbacb6eb1cc9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dbf4fd496cd84bab79f7718bfc142dc9be06404bdfe204b602aba1a4cafa91e9
[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" "dbf4fd496cd84bab79f7718bfc142dc9be06404bdfe204b602aba1a4cafa91e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.49
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]     Checking either v1.5.1
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking termios v0.3.1
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking crossterm_utils v0.1.0
[INFO] [stderr]     Checking crossterm_cursor v0.1.0
[INFO] [stderr]     Checking crossterm_screen v0.1.0
[INFO] [stderr]     Checking crossterm_style v0.1.0
[INFO] [stderr]     Checking crossterm_input v0.1.0
[INFO] [stderr]     Checking crossterm_terminal v0.1.0
[INFO] [stderr]     Checking crossterm v0.6.0
[INFO] [stderr]     Checking tui v0.4.0
[INFO] [stderr]    Compiling structopt-derive v0.2.15
[INFO] [stderr]     Checking structopt v0.2.15
[INFO] [stderr]     Checking graphing-equations v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.25s
[INFO] running `Command { std: "docker" "inspect" "dbf4fd496cd84bab79f7718bfc142dc9be06404bdfe204b602aba1a4cafa91e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbf4fd496cd84bab79f7718bfc142dc9be06404bdfe204b602aba1a4cafa91e9", kill_on_drop: false }`
[INFO] [stdout] dbf4fd496cd84bab79f7718bfc142dc9be06404bdfe204b602aba1a4cafa91e9