[INFO] fetching crate bar-rubble 0.5.2...
[INFO] building bar-rubble-0.5.2 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate bar-rubble 0.5.2 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate bar-rubble 0.5.2
[INFO] finished tweaking crates.io crate bar-rubble 0.5.2
[INFO] tweaked toml for crates.io crate bar-rubble 0.5.2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate bar-rubble 0.5.2 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate bar-rubble 0.5.2 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 27d4c78532dba94ce3b5da30a2bbbb6d2379df7881f22a1316527e1fbfadca8b
[INFO] running `Command { std: "docker" "start" "-a" "27d4c78532dba94ce3b5da30a2bbbb6d2379df7881f22a1316527e1fbfadca8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27d4c78532dba94ce3b5da30a2bbbb6d2379df7881f22a1316527e1fbfadca8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27d4c78532dba94ce3b5da30a2bbbb6d2379df7881f22a1316527e1fbfadca8b", kill_on_drop: false }`
[INFO] [stdout] 27d4c78532dba94ce3b5da30a2bbbb6d2379df7881f22a1316527e1fbfadca8b
[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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a478b909b555819ce3b672a9c4e5989f443014e2e1a693a668e9917588a49b0a
[INFO] running `Command { std: "docker" "start" "-a" "a478b909b555819ce3b672a9c4e5989f443014e2e1a693a668e9917588a49b0a", kill_on_drop: false }`
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[INFO] [stderr]    Compiling reqwest v0.11.22
[INFO] [stderr]    Compiling bar-rubble v0.5.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: useless assignment of variable of type `i32` to itself
[INFO] [stdout]   --> src/rubblets/mail.rs:37:31
[INFO] [stdout]    |
[INFO] [stdout] 37 |                     Err(_) => count = count, //this needs cleaning up
[INFO] [stdout]    |                               ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 13s
[INFO] running `Command { std: "docker" "inspect" "a478b909b555819ce3b672a9c4e5989f443014e2e1a693a668e9917588a49b0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a478b909b555819ce3b672a9c4e5989f443014e2e1a693a668e9917588a49b0a", kill_on_drop: false }`
[INFO] [stdout] a478b909b555819ce3b672a9c4e5989f443014e2e1a693a668e9917588a49b0a
[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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ba91dccff8e902ceb5734076433813e58d16ef06fe4b5d6a6e224f25ab9e46b
[INFO] running `Command { std: "docker" "start" "-a" "3ba91dccff8e902ceb5734076433813e58d16ef06fe4b5d6a6e224f25ab9e46b", kill_on_drop: false }`
[INFO] [stdout] warning: useless assignment of variable of type `i32` to itself
[INFO] [stdout]   --> src/rubblets/mail.rs:37:31
[INFO] [stdout]    |
[INFO] [stdout] 37 |                     Err(_) => count = count, //this needs cleaning up
[INFO] [stdout]    |                               ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling bar-rubble v0.5.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: useless assignment of variable of type `i32` to itself
[INFO] [stdout]   --> src/rubblets/mail.rs:37:31
[INFO] [stdout]    |
[INFO] [stdout] 37 |                     Err(_) => count = count, //this needs cleaning up
[INFO] [stdout]    |                               ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.55s
[INFO] running `Command { std: "docker" "inspect" "3ba91dccff8e902ceb5734076433813e58d16ef06fe4b5d6a6e224f25ab9e46b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ba91dccff8e902ceb5734076433813e58d16ef06fe4b5d6a6e224f25ab9e46b", kill_on_drop: false }`
[INFO] [stdout] 3ba91dccff8e902ceb5734076433813e58d16ef06fe4b5d6a6e224f25ab9e46b