[INFO] cloning repository https://github.com/stevenmsl/rust_unique_bst_96
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stevenmsl/rust_unique_bst_96" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstevenmsl%2Frust_unique_bst_96", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstevenmsl%2Frust_unique_bst_96'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6240603cdb04d87f3fc5568d89ef8c5d325a3bcd
[INFO] checking stevenmsl/rust_unique_bst_96 against try#409ef99a7d4dc96ae91f65d4b48413ed174514d6 for pr-137633
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstevenmsl%2Frust_unique_bst_96" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stevenmsl/rust_unique_bst_96 on toolchain 409ef99a7d4dc96ae91f65d4b48413ed174514d6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+409ef99a7d4dc96ae91f65d4b48413ed174514d6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/stevenmsl/rust_unique_bst_96
[INFO] finished tweaking git repo https://github.com/stevenmsl/rust_unique_bst_96
[INFO] tweaked toml for git repo https://github.com/stevenmsl/rust_unique_bst_96 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/stevenmsl/rust_unique_bst_96 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+409ef99a7d4dc96ae91f65d4b48413ed174514d6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+409ef99a7d4dc96ae91f65d4b48413ed174514d6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dab1488e1cb1636bb6c01a77092e5daddbf8d1754f40a57356c4922ce45d5f0b
[INFO] running `Command { std: "docker" "start" "-a" "dab1488e1cb1636bb6c01a77092e5daddbf8d1754f40a57356c4922ce45d5f0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dab1488e1cb1636bb6c01a77092e5daddbf8d1754f40a57356c4922ce45d5f0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dab1488e1cb1636bb6c01a77092e5daddbf8d1754f40a57356c4922ce45d5f0b", kill_on_drop: false }`
[INFO] [stdout] dab1488e1cb1636bb6c01a77092e5daddbf8d1754f40a57356c4922ce45d5f0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+409ef99a7d4dc96ae91f65d4b48413ed174514d6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1caa6873bccaec95daeadc6b194d4377effa31d34c8818b6bf7c1543fe61169f
[INFO] running `Command { std: "docker" "start" "-a" "1caa6873bccaec95daeadc6b194d4377effa31d34c8818b6bf7c1543fe61169f", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_unique_bst_96 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "1caa6873bccaec95daeadc6b194d4377effa31d34c8818b6bf7c1543fe61169f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1caa6873bccaec95daeadc6b194d4377effa31d34c8818b6bf7c1543fe61169f", kill_on_drop: false }`
[INFO] [stdout] 1caa6873bccaec95daeadc6b194d4377effa31d34c8818b6bf7c1543fe61169f