[INFO] cloning repository https://github.com/neelakantankk/rust_book_vec_operations
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/neelakantankk/rust_book_vec_operations" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneelakantankk%2Frust_book_vec_operations", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneelakantankk%2Frust_book_vec_operations'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 668e33fd336a88e88a0213648f44a871c3877d0f
[INFO] checking neelakantankk/rust_book_vec_operations against try#bb9dbf1d07454a99066eabaabd5819851281494b for pr-80920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneelakantankk%2Frust_book_vec_operations" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/neelakantankk/rust_book_vec_operations on toolchain bb9dbf1d07454a99066eabaabd5819851281494b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/neelakantankk/rust_book_vec_operations
[INFO] finished tweaking git repo https://github.com/neelakantankk/rust_book_vec_operations
[INFO] tweaked toml for git repo https://github.com/neelakantankk/rust_book_vec_operations written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/neelakantankk/rust_book_vec_operations already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8d82b30a8da53f47980abf3ac784a2018aacf422abbb271116a4d6ca7fe50c8d
[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" "8d82b30a8da53f47980abf3ac784a2018aacf422abbb271116a4d6ca7fe50c8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d82b30a8da53f47980abf3ac784a2018aacf422abbb271116a4d6ca7fe50c8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d82b30a8da53f47980abf3ac784a2018aacf422abbb271116a4d6ca7fe50c8d", kill_on_drop: false }`
[INFO] [stdout] 8d82b30a8da53f47980abf3ac784a2018aacf422abbb271116a4d6ca7fe50c8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1fc96178a7e4b804ff5ae3cd27552186e7c4b4e7a681ac14e1a30502f05e68ff
[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" "1fc96178a7e4b804ff5ae3cd27552186e7c4b4e7a681ac14e1a30502f05e68ff", kill_on_drop: false }`
[INFO] [stderr]     Checking vec_operations v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "1fc96178a7e4b804ff5ae3cd27552186e7c4b4e7a681ac14e1a30502f05e68ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fc96178a7e4b804ff5ae3cd27552186e7c4b4e7a681ac14e1a30502f05e68ff", kill_on_drop: false }`
[INFO] [stdout] 1fc96178a7e4b804ff5ae3cd27552186e7c4b4e7a681ac14e1a30502f05e68ff