[INFO] cloning repository https://github.com/c4collins/rust-by-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/c4collins/rust-by-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fc4collins%2Frust-by-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fc4collins%2Frust-by-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e177b59bb11b3da8fd88a4bd9e4ba9d88e7f9c0c
[INFO] checking c4collins/rust-by-example against master#2ad5292aea6328113b55968b4322528d48261316 for pr-80243
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fc4collins%2Frust-by-example" "/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/c4collins/rust-by-example on toolchain 2ad5292aea6328113b55968b4322528d48261316
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/c4collins/rust-by-example
[INFO] finished tweaking git repo https://github.com/c4collins/rust-by-example
[INFO] tweaked toml for git repo https://github.com/c4collins/rust-by-example written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/c4collins/rust-by-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 970a8fe67d24590810b73ab44d2dcb118a0eaf3b5c705f03e0f66a1d2380aa26
[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" "970a8fe67d24590810b73ab44d2dcb118a0eaf3b5c705f03e0f66a1d2380aa26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "970a8fe67d24590810b73ab44d2dcb118a0eaf3b5c705f03e0f66a1d2380aa26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "970a8fe67d24590810b73ab44d2dcb118a0eaf3b5c705f03e0f66a1d2380aa26", kill_on_drop: false }`
[INFO] [stdout] 970a8fe67d24590810b73ab44d2dcb118a0eaf3b5c705f03e0f66a1d2380aa26
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 302e95d1977a60f1d30e3b67414fa220e0987f3d3f550411271b47e00d472267
[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" "302e95d1977a60f1d30e3b67414fa220e0987f3d3f550411271b47e00d472267", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling typename_derive v0.1.3
[INFO] [stderr]     Checking typename v0.1.1
[INFO] [stderr]     Checking rust-by-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.89s
[INFO] running `Command { std: "docker" "inspect" "302e95d1977a60f1d30e3b67414fa220e0987f3d3f550411271b47e00d472267", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "302e95d1977a60f1d30e3b67414fa220e0987f3d3f550411271b47e00d472267", kill_on_drop: false }`
[INFO] [stdout] 302e95d1977a60f1d30e3b67414fa220e0987f3d3f550411271b47e00d472267