[INFO] cloning repository https://github.com/davidrusu/hashseq
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/davidrusu/hashseq" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidrusu%2Fhashseq", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidrusu%2Fhashseq'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] abe3eadce82d431f9e17a3bdc66f46b5009c46a5
[INFO] checking davidrusu/hashseq against try#ac4c3613be2acd5395b65d85e5657b81e3c982f0 for pr-154585
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidrusu%2Fhashseq" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/davidrusu/hashseq
[INFO] finished tweaking git repo https://github.com/davidrusu/hashseq
[INFO] tweaked toml for git repo https://github.com/davidrusu/hashseq written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/davidrusu/hashseq on toolchain ac4c3613be2acd5395b65d85e5657b81e3c982f0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ac4c3613be2acd5395b65d85e5657b81e3c982f0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/davidrusu/hashseq 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" "+ac4c3613be2acd5395b65d85e5657b81e3c982f0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ac4c3613be2acd5395b65d85e5657b81e3c982f0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 460ee01b67817dde927445ced6691be25617d6c6a828edb3ad81a5b17f867f22
[INFO] running `Command { std: "docker" "start" "-a" "460ee01b67817dde927445ced6691be25617d6c6a828edb3ad81a5b17f867f22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "460ee01b67817dde927445ced6691be25617d6c6a828edb3ad81a5b17f867f22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "460ee01b67817dde927445ced6691be25617d6c6a828edb3ad81a5b17f867f22", kill_on_drop: false }`
[INFO] [stdout] 460ee01b67817dde927445ced6691be25617d6c6a828edb3ad81a5b17f867f22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ac4c3613be2acd5395b65d85e5657b81e3c982f0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] abd8895281d1c85f5b99b84f0578d7ea0d3d7a183503f5383489153897de7398
[INFO] running `Command { std: "docker" "start" "-a" "abd8895281d1c85f5b99b84f0578d7ea0d3d7a183503f5383489153897de7398", kill_on_drop: false }`
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[INFO] [stdout] warning: unused variable: `parent_run`
[INFO] [stdout]    --> examples/boa_trace.rs:249:25
[INFO] [stdout]     |
[INFO] [stdout] 249 |             if let Some(parent_run) = last_elem_to_run.get(&run.insert_after) {
[INFO] [stdout]     |                         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent_run`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_remove_runs`
[INFO] [stdout]    --> examples/boa_trace.rs:443:9
[INFO] [stdout]     |
[INFO] [stdout] 443 |     let num_remove_runs = num_forward_runs + num_backward_runs;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_remove_runs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_standalone`
[INFO] [stdout]    --> examples/boa_trace.rs:479:9
[INFO] [stdout]     |
[INFO] [stdout] 479 |     let num_standalone = num_single_run + num_before_removes + num_root_removes;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_standalone`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3m 54s
[INFO] running `Command { std: "docker" "inspect" "abd8895281d1c85f5b99b84f0578d7ea0d3d7a183503f5383489153897de7398", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abd8895281d1c85f5b99b84f0578d7ea0d3d7a183503f5383489153897de7398", kill_on_drop: false }`
[INFO] [stdout] abd8895281d1c85f5b99b84f0578d7ea0d3d7a183503f5383489153897de7398
