[INFO] cloning repository https://github.com/rlcurrall/binary-tree-performance-php-vs-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rlcurrall/binary-tree-performance-php-vs-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frlcurrall%2Fbinary-tree-performance-php-vs-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frlcurrall%2Fbinary-tree-performance-php-vs-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 92a69a585120f01c10a18df3b8846bef6f2fcce8
[INFO] checking rlcurrall/binary-tree-performance-php-vs-rust against master#7f5a42b073dc2bee2aa625052eb066ee07072048 for pr-78991
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frlcurrall%2Fbinary-tree-performance-php-vs-rust" "/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/rlcurrall/binary-tree-performance-php-vs-rust on toolchain 7f5a42b073dc2bee2aa625052eb066ee07072048
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rlcurrall/binary-tree-performance-php-vs-rust
[INFO] finished tweaking git repo https://github.com/rlcurrall/binary-tree-performance-php-vs-rust
[INFO] tweaked toml for git repo https://github.com/rlcurrall/binary-tree-performance-php-vs-rust written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/rlcurrall/binary-tree-performance-php-vs-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cfc640887cbb1d24348008d4242eaf5e821076445b10740f0db310c71f354d3b
[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" "cfc640887cbb1d24348008d4242eaf5e821076445b10740f0db310c71f354d3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cfc640887cbb1d24348008d4242eaf5e821076445b10740f0db310c71f354d3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfc640887cbb1d24348008d4242eaf5e821076445b10740f0db310c71f354d3b", kill_on_drop: false }`
[INFO] [stdout] cfc640887cbb1d24348008d4242eaf5e821076445b10740f0db310c71f354d3b
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 583034ff8cb8b4f6a3555004dfade23f8bc351f43b2e6e716dc9d3a2d9a38a39
[INFO] running `Command { std: "docker" "start" "-a" "583034ff8cb8b4f6a3555004dfade23f8bc351f43b2e6e716dc9d3a2d9a38a39", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking binary_tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.22s
[INFO] running `Command { std: "docker" "inspect" "583034ff8cb8b4f6a3555004dfade23f8bc351f43b2e6e716dc9d3a2d9a38a39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "583034ff8cb8b4f6a3555004dfade23f8bc351f43b2e6e716dc9d3a2d9a38a39", kill_on_drop: false }`
[INFO] [stdout] 583034ff8cb8b4f6a3555004dfade23f8bc351f43b2e6e716dc9d3a2d9a38a39