[INFO] cloning repository https://github.com/shuternay/Johnson-independence-numbers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shuternay/Johnson-independence-numbers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshuternay%2FJohnson-independence-numbers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshuternay%2FJohnson-independence-numbers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e257856a7634ac4706696335e962756007742f86
[INFO] building shuternay/Johnson-independence-numbers against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshuternay%2FJohnson-independence-numbers" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shuternay/Johnson-independence-numbers on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shuternay/Johnson-independence-numbers
[INFO] finished tweaking git repo https://github.com/shuternay/Johnson-independence-numbers
[INFO] tweaked toml for git repo https://github.com/shuternay/Johnson-independence-numbers written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/shuternay/Johnson-independence-numbers 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 64990d55c5398f149a57b0177bdc28fe1e3fe2a8fca555acaf18c1b0a8be1c52
[INFO] running `Command { std: "docker" "start" "-a" "64990d55c5398f149a57b0177bdc28fe1e3fe2a8fca555acaf18c1b0a8be1c52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64990d55c5398f149a57b0177bdc28fe1e3fe2a8fca555acaf18c1b0a8be1c52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64990d55c5398f149a57b0177bdc28fe1e3fe2a8fca555acaf18c1b0a8be1c52", kill_on_drop: false }`
[INFO] [stdout] 64990d55c5398f149a57b0177bdc28fe1e3fe2a8fca555acaf18c1b0a8be1c52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08649676ec5ba38153f5fbe615e52c20ab7a65322bd7ebb7d630f5078d8668d2
[INFO] running `Command { std: "docker" "start" "-a" "08649676ec5ba38153f5fbe615e52c20ab7a65322bd7ebb7d630f5078d8668d2", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling ndarray v0.13.1
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling bit-vec v0.6.2
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling matrixmultiply v0.2.3
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling ostergard v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `max_cliques` is never read
[INFO] [stdout]   --> src/ostergard.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct Ostergard<'a, T: std::fmt::Display> {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 9  |     graph: &'a Graph<T>,
[INFO] [stdout] 10 |     pub max_cliques: Vec<BitSet>,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.48s
[INFO] running `Command { std: "docker" "inspect" "08649676ec5ba38153f5fbe615e52c20ab7a65322bd7ebb7d630f5078d8668d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08649676ec5ba38153f5fbe615e52c20ab7a65322bd7ebb7d630f5078d8668d2", kill_on_drop: false }`
[INFO] [stdout] 08649676ec5ba38153f5fbe615e52c20ab7a65322bd7ebb7d630f5078d8668d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 43992d5c26402a73fd6884810de8a6d40c536f5805bd0ec5714f65bf1dc913e0
[INFO] running `Command { std: "docker" "start" "-a" "43992d5c26402a73fd6884810de8a6d40c536f5805bd0ec5714f65bf1dc913e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling ostergard v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `max_cliques` is never read
[INFO] [stdout]   --> src/ostergard.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct Ostergard<'a, T: std::fmt::Display> {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 9  |     graph: &'a Graph<T>,
[INFO] [stdout] 10 |     pub max_cliques: Vec<BitSet>,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "43992d5c26402a73fd6884810de8a6d40c536f5805bd0ec5714f65bf1dc913e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43992d5c26402a73fd6884810de8a6d40c536f5805bd0ec5714f65bf1dc913e0", kill_on_drop: false }`
[INFO] [stdout] 43992d5c26402a73fd6884810de8a6d40c536f5805bd0ec5714f65bf1dc913e0