[INFO] fetching crate halfcopy 0.2.1...
[INFO] testing halfcopy-0.2.1 against master#d933cf483edf1605142ac6899ff32536c0ad8b22 for pr-150933
[INFO] extracting crate halfcopy 0.2.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate halfcopy 0.2.1
[INFO] finished tweaking crates.io crate halfcopy 0.2.1
[INFO] tweaked toml for crates.io crate halfcopy 0.2.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate halfcopy 0.2.1 on toolchain d933cf483edf1605142ac6899ff32536c0ad8b22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d933cf483edf1605142ac6899ff32536c0ad8b22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate halfcopy 0.2.1 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" "+d933cf483edf1605142ac6899ff32536c0ad8b22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:cfa559dde23f44738f9990739aaa3487d8df3af37eb5df0572f7cf76004a604a" "/opt/rustwide/cargo-home/bin/cargo" "+d933cf483edf1605142ac6899ff32536c0ad8b22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc9181bc3480aab75b104d2e1aabda34d82af5707e341358d3ee6c89382eca2e
[INFO] running `Command { std: "docker" "start" "-a" "cc9181bc3480aab75b104d2e1aabda34d82af5707e341358d3ee6c89382eca2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc9181bc3480aab75b104d2e1aabda34d82af5707e341358d3ee6c89382eca2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc9181bc3480aab75b104d2e1aabda34d82af5707e341358d3ee6c89382eca2e", kill_on_drop: false }`
[INFO] [stdout] cc9181bc3480aab75b104d2e1aabda34d82af5707e341358d3ee6c89382eca2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:cfa559dde23f44738f9990739aaa3487d8df3af37eb5df0572f7cf76004a604a" "/opt/rustwide/cargo-home/bin/cargo" "+d933cf483edf1605142ac6899ff32536c0ad8b22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82e04b257845d43cc01ac80ac8ef5ffa40e0ed6ebcc0809493775ccd2c46ec35
[INFO] running `Command { std: "docker" "start" "-a" "82e04b257845d43cc01ac80ac8ef5ffa40e0ed6ebcc0809493775ccd2c46ec35", kill_on_drop: false }`
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[INFO] [stderr]    Compiling halfcopy v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `stats`
[INFO] [stdout]   --> src/recv.rs:88:10
[INFO] [stdout]    |
[INFO] [stdout] 88 |     let (stats, total_files, payload_size) = if !local.is_complete() {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_stats`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `total_files`
[INFO] [stdout]   --> src/recv.rs:88:17
[INFO] [stdout]    |
[INFO] [stdout] 88 |     let (stats, total_files, payload_size) = if !local.is_complete() {
[INFO] [stdout]    |                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_total_files`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `payload_size`
[INFO] [stdout]   --> src/recv.rs:88:30
[INFO] [stdout]    |
[INFO] [stdout] 88 |     let (stats, total_files, payload_size) = if !local.is_complete() {
[INFO] [stdout]    |                              ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_payload_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3m 44s
[INFO] running `Command { std: "docker" "inspect" "82e04b257845d43cc01ac80ac8ef5ffa40e0ed6ebcc0809493775ccd2c46ec35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82e04b257845d43cc01ac80ac8ef5ffa40e0ed6ebcc0809493775ccd2c46ec35", kill_on_drop: false }`
[INFO] [stdout] 82e04b257845d43cc01ac80ac8ef5ffa40e0ed6ebcc0809493775ccd2c46ec35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:cfa559dde23f44738f9990739aaa3487d8df3af37eb5df0572f7cf76004a604a" "/opt/rustwide/cargo-home/bin/cargo" "+d933cf483edf1605142ac6899ff32536c0ad8b22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c8b293eef53ed6a199998acce3426b96d4ba78edfca8016c52a8938f902ebfb5
[INFO] running `Command { std: "docker" "start" "-a" "c8b293eef53ed6a199998acce3426b96d4ba78edfca8016c52a8938f902ebfb5", kill_on_drop: false }`
[INFO] [stderr]    Compiling halfcopy v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `stats`
[INFO] [stdout]   --> src/recv.rs:88:10
[INFO] [stdout]    |
[INFO] [stdout] 88 |     let (stats, total_files, payload_size) = if !local.is_complete() {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_stats`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `total_files`
[INFO] [stdout]   --> src/recv.rs:88:17
[INFO] [stdout]    |
[INFO] [stdout] 88 |     let (stats, total_files, payload_size) = if !local.is_complete() {
[INFO] [stdout]    |                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_total_files`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `payload_size`
[INFO] [stdout]   --> src/recv.rs:88:30
[INFO] [stdout]    |
[INFO] [stdout] 88 |     let (stats, total_files, payload_size) = if !local.is_complete() {
[INFO] [stdout]    |                              ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_payload_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 11.27s
[INFO] running `Command { std: "docker" "inspect" "c8b293eef53ed6a199998acce3426b96d4ba78edfca8016c52a8938f902ebfb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8b293eef53ed6a199998acce3426b96d4ba78edfca8016c52a8938f902ebfb5", kill_on_drop: false }`
[INFO] [stdout] c8b293eef53ed6a199998acce3426b96d4ba78edfca8016c52a8938f902ebfb5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:cfa559dde23f44738f9990739aaa3487d8df3af37eb5df0572f7cf76004a604a" "/opt/rustwide/cargo-home/bin/cargo" "+d933cf483edf1605142ac6899ff32536c0ad8b22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5cb25f25bdf3786d0749d263fbabcb15eaa359129b09ce49082422b4efd8a77a
[INFO] running `Command { std: "docker" "start" "-a" "5cb25f25bdf3786d0749d263fbabcb15eaa359129b09ce49082422b4efd8a77a", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `stats`
[INFO] [stderr]   --> src/recv.rs:88:10
[INFO] [stderr]    |
[INFO] [stderr] 88 |     let (stats, total_files, payload_size) = if !local.is_complete() {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_stats`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `total_files`
[INFO] [stderr]   --> src/recv.rs:88:17
[INFO] [stderr]    |
[INFO] [stderr] 88 |     let (stats, total_files, payload_size) = if !local.is_complete() {
[INFO] [stderr]    |                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_total_files`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `payload_size`
[INFO] [stderr]   --> src/recv.rs:88:30
[INFO] [stderr]    |
[INFO] [stderr] 88 |     let (stats, total_files, payload_size) = if !local.is_complete() {
[INFO] [stderr]    |                              ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_payload_size`
[INFO] [stderr] 
[INFO] [stderr] warning: `halfcopy` (bin "halfcopy" test) generated 3 warnings (run `cargo fix --bin "halfcopy" -p halfcopy --tests` to apply 3 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.56s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/halfcopy-ac8da0e0bd2d9196)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5cb25f25bdf3786d0749d263fbabcb15eaa359129b09ce49082422b4efd8a77a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cb25f25bdf3786d0749d263fbabcb15eaa359129b09ce49082422b4efd8a77a", kill_on_drop: false }`
[INFO] [stdout] 5cb25f25bdf3786d0749d263fbabcb15eaa359129b09ce49082422b4efd8a77a