[INFO] fetching crate forward 0.1.0-alpha.1...
[INFO] checking forward-0.1.0-alpha.1 against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] extracting crate forward 0.1.0-alpha.1 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate forward 0.1.0-alpha.1 on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate forward 0.1.0-alpha.1
[INFO] finished tweaking crates.io crate forward 0.1.0-alpha.1
[INFO] tweaked toml for crates.io crate forward 0.1.0-alpha.1 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7103391efd54141238b6a52d3aadb475e9936dd309e914b2b263869e805bc9b1
[INFO] running `Command { std: "docker" "start" "-a" "7103391efd54141238b6a52d3aadb475e9936dd309e914b2b263869e805bc9b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7103391efd54141238b6a52d3aadb475e9936dd309e914b2b263869e805bc9b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7103391efd54141238b6a52d3aadb475e9936dd309e914b2b263869e805bc9b1", kill_on_drop: false }`
[INFO] [stdout] 7103391efd54141238b6a52d3aadb475e9936dd309e914b2b263869e805bc9b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c8826e6c30ffc08c9e1900eae7c4eb2197d5e86d8176efa48a1070dc220cde1
[INFO] running `Command { std: "docker" "start" "-a" "0c8826e6c30ffc08c9e1900eae7c4eb2197d5e86d8176efa48a1070dc220cde1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking futures-channel v0.3.15
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking futures-util v0.3.15
[INFO] [stderr]     Checking futures-executor v0.3.15
[INFO] [stderr]     Checking futures v0.3.15
[INFO] [stderr]     Checking forward v0.1.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `recv`
[INFO] [stdout]   --> src/server/mod.rs:90:21
[INFO] [stdout]    |
[INFO] [stdout] 90 |                     recv = s => {
[INFO] [stdout]    |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_recv`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `recv`
[INFO] [stdout]   --> src/server/mod.rs:90:21
[INFO] [stdout]    |
[INFO] [stdout] 90 |                     recv = s => {
[INFO] [stdout]    |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_recv`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.02s
[INFO] running `Command { std: "docker" "inspect" "0c8826e6c30ffc08c9e1900eae7c4eb2197d5e86d8176efa48a1070dc220cde1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c8826e6c30ffc08c9e1900eae7c4eb2197d5e86d8176efa48a1070dc220cde1", kill_on_drop: false }`
[INFO] [stdout] 0c8826e6c30ffc08c9e1900eae7c4eb2197d5e86d8176efa48a1070dc220cde1