[INFO] cloning repository https://github.com/psyashes/rust-prac
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/psyashes/rust-prac" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpsyashes%2Frust-prac", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpsyashes%2Frust-prac'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8de6f053aae0dce3b3cd676623b038a57f9f9689
[INFO] checking psyashes/rust-prac against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpsyashes%2Frust-prac" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/psyashes/rust-prac on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/psyashes/rust-prac
[INFO] finished tweaking git repo https://github.com/psyashes/rust-prac
[INFO] tweaked toml for git repo https://github.com/psyashes/rust-prac written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/psyashes/rust-prac already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: dependencies.tokio.futures
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1e6c8c196bc6c2e9512d48cc6b3b4ae21ec96733aaec132e574cad9aec5e97d5
[INFO] running `Command { std: "docker" "start" "-a" "1e6c8c196bc6c2e9512d48cc6b3b4ae21ec96733aaec132e574cad9aec5e97d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e6c8c196bc6c2e9512d48cc6b3b4ae21ec96733aaec132e574cad9aec5e97d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e6c8c196bc6c2e9512d48cc6b3b4ae21ec96733aaec132e574cad9aec5e97d5", kill_on_drop: false }`
[INFO] [stdout] 1e6c8c196bc6c2e9512d48cc6b3b4ae21ec96733aaec132e574cad9aec5e97d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e0becd255274ca6d0dc7fab69b9dcd117a7c94a3cb6e5318352371b844373e1b
[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" "e0becd255274ca6d0dc7fab69b9dcd117a7c94a3cb6e5318352371b844373e1b", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: dependencies.tokio.futures
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.56
[INFO] [stderr]     Checking futures-core v0.3.8
[INFO] [stderr]     Checking futures-sink v0.3.8
[INFO] [stderr]    Compiling tokio v1.0.1
[INFO] [stderr]     Checking futures-channel v0.3.8
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]     Checking pin-project v1.0.2
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking futures-executor v0.3.8
[INFO] [stderr]     Checking futures v0.3.8
[INFO] [stderr]     Checking rust-prac v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.77s
[INFO] running `Command { std: "docker" "inspect" "e0becd255274ca6d0dc7fab69b9dcd117a7c94a3cb6e5318352371b844373e1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0becd255274ca6d0dc7fab69b9dcd117a7c94a3cb6e5318352371b844373e1b", kill_on_drop: false }`
[INFO] [stdout] e0becd255274ca6d0dc7fab69b9dcd117a7c94a3cb6e5318352371b844373e1b