[INFO] cloning repository https://github.com/github-vanilla/the-rust-programming-language-2nd-edition
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/github-vanilla/the-rust-programming-language-2nd-edition" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgithub-vanilla%2Fthe-rust-programming-language-2nd-edition", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgithub-vanilla%2Fthe-rust-programming-language-2nd-edition'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3604a9642d8ff939278553bd1989b1cff1e4f215
[INFO] checking github-vanilla/the-rust-programming-language-2nd-edition against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgithub-vanilla%2Fthe-rust-programming-language-2nd-edition" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/github-vanilla/the-rust-programming-language-2nd-edition on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/github-vanilla/the-rust-programming-language-2nd-edition
[INFO] finished tweaking git repo https://github.com/github-vanilla/the-rust-programming-language-2nd-edition
[INFO] tweaked toml for git repo https://github.com/github-vanilla/the-rust-programming-language-2nd-edition written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/github-vanilla/the-rust-programming-language-2nd-edition already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e46804a94ac0800492d3b69cd9e30c1a314e4e31a131b9c02266cac9565db484
[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" "e46804a94ac0800492d3b69cd9e30c1a314e4e31a131b9c02266cac9565db484", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e46804a94ac0800492d3b69cd9e30c1a314e4e31a131b9c02266cac9565db484", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e46804a94ac0800492d3b69cd9e30c1a314e4e31a131b9c02266cac9565db484", kill_on_drop: false }`
[INFO] [stdout] e46804a94ac0800492d3b69cd9e30c1a314e4e31a131b9c02266cac9565db484
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 354381ae43585b6eff6d20532ac599bda21719b77ec8b35a4a537a6586d56b19
[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" "354381ae43585b6eff6d20532ac599bda21719b77ec8b35a4a537a6586d56b19", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.64s
[INFO] running `Command { std: "docker" "inspect" "354381ae43585b6eff6d20532ac599bda21719b77ec8b35a4a537a6586d56b19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "354381ae43585b6eff6d20532ac599bda21719b77ec8b35a4a537a6586d56b19", kill_on_drop: false }`
[INFO] [stdout] 354381ae43585b6eff6d20532ac599bda21719b77ec8b35a4a537a6586d56b19