[INFO] fetching crate harness-algebra 0.6.0...
[INFO] checking harness-algebra-0.6.0 against master#61cc47e367d7be91e13bcd01e4e96e0e233d4f6d for pr-133502-20
[INFO] extracting crate harness-algebra 0.6.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate harness-algebra 0.6.0
[INFO] finished tweaking crates.io crate harness-algebra 0.6.0
[INFO] tweaked toml for crates.io crate harness-algebra 0.6.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate harness-algebra 0.6.0 on toolchain 61cc47e367d7be91e13bcd01e4e96e0e233d4f6d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+61cc47e367d7be91e13bcd01e4e96e0e233d4f6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate harness-algebra 0.6.0 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" "+61cc47e367d7be91e13bcd01e4e96e0e233d4f6d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+61cc47e367d7be91e13bcd01e4e96e0e233d4f6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d52bbabc641a95bdedc2a01a5d1290a6e168ab3810f103415ce079ab36763f6f
[INFO] running `Command { std: "docker" "start" "-a" "d52bbabc641a95bdedc2a01a5d1290a6e168ab3810f103415ce079ab36763f6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d52bbabc641a95bdedc2a01a5d1290a6e168ab3810f103415ce079ab36763f6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d52bbabc641a95bdedc2a01a5d1290a6e168ab3810f103415ce079ab36763f6f", kill_on_drop: false }`
[INFO] [stdout] d52bbabc641a95bdedc2a01a5d1290a6e168ab3810f103415ce079ab36763f6f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+61cc47e367d7be91e13bcd01e4e96e0e233d4f6d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a1c76f62eaa8b0cc4ef2307f72fac9afbd8aa7499f56d25ec868d51fbf8d7e6
[INFO] running `Command { std: "docker" "start" "-a" "2a1c76f62eaa8b0cc4ef2307f72fac9afbd8aa7499f56d25ec868d51fbf8d7e6", kill_on_drop: false }`
[INFO] [stderr]     Checking harness-algebra v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `total_written` is never read
[INFO] [stdout]    --> src/tensors/dynamic/block.rs:457:9
[INFO] [stdout]     |
[INFO] [stdout] 457 |         total_written += 2;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `total_written` is never read
[INFO] [stdout]    --> src/tensors/dynamic/block.rs:454:9
[INFO] [stdout]     |
[INFO] [stdout] 454 |         total_written += 3;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `total_written` is never read
[INFO] [stdout]    --> src/tensors/dynamic/block.rs:461:5
[INFO] [stdout]     |
[INFO] [stdout] 461 |     total_written += width;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `total_written` is never read
[INFO] [stdout]    --> src/tensors/dynamic/block.rs:457:9
[INFO] [stdout]     |
[INFO] [stdout] 457 |         total_written += 2;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `total_written` is never read
[INFO] [stdout]    --> src/tensors/dynamic/block.rs:454:9
[INFO] [stdout]     |
[INFO] [stdout] 454 |         total_written += 3;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `total_written` is never read
[INFO] [stdout]    --> src/tensors/dynamic/block.rs:461:5
[INFO] [stdout]     |
[INFO] [stdout] 461 |     total_written += width;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.57s
[INFO] running `Command { std: "docker" "inspect" "2a1c76f62eaa8b0cc4ef2307f72fac9afbd8aa7499f56d25ec868d51fbf8d7e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a1c76f62eaa8b0cc4ef2307f72fac9afbd8aa7499f56d25ec868d51fbf8d7e6", kill_on_drop: false }`
[INFO] [stdout] 2a1c76f62eaa8b0cc4ef2307f72fac9afbd8aa7499f56d25ec868d51fbf8d7e6