[INFO] fetching crate forward 0.1.0-alpha.1...
[INFO] checking forward-0.1.0-alpha.1 against try#5de9e0e6cf775e94e0de2003f35e183f3f77bfe8 for pr-143808
[INFO] extracting crate forward 0.1.0-alpha.1 into /workspace/builds/worker-4-tc2/source
[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-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate forward 0.1.0-alpha.1 on toolchain 5de9e0e6cf775e94e0de2003f35e183f3f77bfe8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 48 packages to latest compatible versions
[INFO] [stderr]       Adding tokio v0.2.25 (available: v1.46.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec46f143e918ec80b719bf34c338e6a073bf12a8213bed111b272772f2c6a472
[INFO] running `Command { std: "docker" "start" "-a" "ec46f143e918ec80b719bf34c338e6a073bf12a8213bed111b272772f2c6a472", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec46f143e918ec80b719bf34c338e6a073bf12a8213bed111b272772f2c6a472", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec46f143e918ec80b719bf34c338e6a073bf12a8213bed111b272772f2c6a472", kill_on_drop: false }`
[INFO] [stdout] ec46f143e918ec80b719bf34c338e6a073bf12a8213bed111b272772f2c6a472
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03ba4fee785d2849202623a60b1f11df30c45528a90d7269c3d937686389fe5c
[INFO] running `Command { std: "docker" "start" "-a" "03ba4fee785d2849202623a60b1f11df30c45528a90d7269c3d937686389fe5c", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]     Checking slab v0.4.10
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking pin-project-lite v0.2.16
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking num_cpus v1.17.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.5
[INFO] [stderr]     Checking net2 v0.2.39
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.78s
[INFO] running `Command { std: "docker" "inspect" "03ba4fee785d2849202623a60b1f11df30c45528a90d7269c3d937686389fe5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03ba4fee785d2849202623a60b1f11df30c45528a90d7269c3d937686389fe5c", kill_on_drop: false }`
[INFO] [stdout] 03ba4fee785d2849202623a60b1f11df30c45528a90d7269c3d937686389fe5c