[INFO] cloning repository https://github.com/sdbondi/tower-examples [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sdbondi/tower-examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdbondi%2Ftower-examples", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdbondi%2Ftower-examples'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 05080a8e931e8b1316c5756b4bed9ccb1f4d3374 [INFO] checking sdbondi/tower-examples against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdbondi%2Ftower-examples" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/sdbondi/tower-examples on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/sdbondi/tower-examples [INFO] finished tweaking git repo https://github.com/sdbondi/tower-examples [INFO] tweaked toml for git repo https://github.com/sdbondi/tower-examples written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/sdbondi/tower-examples 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded tower-service v0.2.0 [INFO] [stderr] Downloaded tower-layer v0.1.0 [INFO] [stderr] Downloaded tower-util v0.1.0 [INFO] [stderr] Downloaded tokio-io v0.1.12 [INFO] [stderr] Downloaded tower-load-shed v0.1.0 [INFO] [stderr] Downloaded tokio-codec v0.1.1 [INFO] [stderr] Downloaded stable_deref_trait v1.1.1 [INFO] [stderr] Downloaded tower-retry v0.1.0 [INFO] [stderr] Downloaded lock_api v0.1.5 [INFO] [stderr] Downloaded crossbeam-deque v0.7.1 [INFO] [stderr] Downloaded rand_jitter v0.1.4 [INFO] [stderr] Downloaded bitflags v1.1.0 [INFO] [stderr] Downloaded mio-uds v0.6.7 [INFO] [stderr] Downloaded tokio-fs v0.1.6 [INFO] [stderr] Downloaded nodrop v0.1.13 [INFO] [stderr] Downloaded tower-limit v0.1.0 [INFO] [stderr] Downloaded rand_core v0.4.0 [INFO] [stderr] Downloaded tokio-current-thread v0.1.6 [INFO] [stderr] Downloaded arrayvec v0.4.11 [INFO] [stderr] Downloaded tokio-tcp v0.1.3 [INFO] [stderr] Downloaded tokio v0.1.22 [INFO] [stderr] Downloaded libc v0.2.60 [INFO] [stderr] Downloaded memoffset v0.5.1 [INFO] [stderr] Downloaded crossbeam-queue v0.1.2 [INFO] [stderr] Downloaded winapi v0.3.7 [INFO] [stderr] Downloaded rand v0.6.5 [INFO] [stderr] Downloaded crossbeam-epoch v0.7.2 [INFO] [stderr] Downloaded tokio-udp v0.1.3 [INFO] [stderr] Downloaded net2 v0.2.33 [INFO] [stderr] Downloaded num_cpus v1.10.1 [INFO] [stderr] Downloaded owning_ref v0.4.0 [INFO] [stderr] Downloaded rand_chacha v0.1.1 [INFO] [stderr] Downloaded rand_isaac v0.1.1 [INFO] [stderr] Downloaded autocfg v0.1.5 [INFO] [stderr] Downloaded smallvec v0.6.10 [INFO] [stderr] Downloaded parking_lot_core v0.4.0 [INFO] [stderr] Downloaded tokio-reactor v0.1.9 [INFO] [stderr] Downloaded tokio-executor v0.1.8 [INFO] [stderr] Downloaded semver v0.9.0 [INFO] [stderr] Downloaded futures v0.1.28 [INFO] [stderr] Downloaded tokio-threadpool v0.1.15 [INFO] [stderr] Downloaded tokio-sync v0.1.6 [INFO] [stderr] Downloaded tokio-timer v0.2.11 [INFO] [stderr] Downloaded rand_pcg v0.1.2 [INFO] [stderr] Downloaded rand_xorshift v0.1.1 [INFO] [stderr] Downloaded rustc_version v0.2.3 [INFO] [stderr] Downloaded parking_lot v0.7.1 [INFO] [stderr] Downloaded semver-parser v0.7.0 [INFO] [stderr] Downloaded tokio-uds v0.2.5 [INFO] [stderr] Downloaded rand_hc v0.1.0 [INFO] [stderr] Downloaded cfg-if v0.1.9 [INFO] [stderr] Downloaded scopeguard v1.0.0 [INFO] [stderr] Downloaded tower v0.1.1 [INFO] [stderr] Downloaded mio v0.6.19 [INFO] [stderr] Downloaded tracing-core v0.1.2 [INFO] [stderr] Downloaded tower-timeout v0.1.1 [INFO] [stderr] Downloaded tracing v0.1.3 [INFO] [stderr] Downloaded tower-discover v0.1.0 [INFO] [stderr] Downloaded tower-buffer v0.1.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 22788ea2e27356fdae13ea7f014454f966b39c0c5b7dc51fe166b1c1e18342db [INFO] running `Command { std: "docker" "start" "-a" "22788ea2e27356fdae13ea7f014454f966b39c0c5b7dc51fe166b1c1e18342db", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "22788ea2e27356fdae13ea7f014454f966b39c0c5b7dc51fe166b1c1e18342db", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "22788ea2e27356fdae13ea7f014454f966b39c0c5b7dc51fe166b1c1e18342db", kill_on_drop: false }` [INFO] [stdout] 22788ea2e27356fdae13ea7f014454f966b39c0c5b7dc51fe166b1c1e18342db [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 95ae9ff6774bab29437f5eb817447e2e0cd537b08a1619bcf80fc711544c4f3d [INFO] running `Command { std: "docker" "start" "-a" "95ae9ff6774bab29437f5eb817447e2e0cd537b08a1619bcf80fc711544c4f3d", kill_on_drop: false }` [INFO] [stderr] Checking cfg-if v0.1.9 [INFO] [stderr] Compiling libc v0.2.60 [INFO] [stderr] Checking futures v0.1.28 [INFO] [stderr] Checking lazy_static v1.3.0 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling autocfg v0.1.5 [INFO] [stderr] Checking rand_core v0.4.0 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Compiling byteorder v1.3.2 [INFO] [stderr] Checking fnv v1.0.6 [INFO] [stderr] Checking stable_deref_trait v1.1.1 [INFO] [stderr] Compiling arrayvec v0.4.11 [INFO] [stderr] Checking scopeguard v0.3.3 [INFO] [stderr] Checking smallvec v0.6.10 [INFO] [stderr] Checking nodrop v0.1.13 [INFO] [stderr] Checking scopeguard v1.0.0 [INFO] [stderr] Checking crossbeam-utils v0.6.6 [INFO] [stderr] Checking tracing-core v0.1.2 [INFO] [stderr] Checking owning_ref v0.4.0 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking rand_jitter v0.1.4 [INFO] [stderr] Checking lock_api v0.1.5 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking tracing v0.1.3 [INFO] [stderr] Checking crossbeam-queue v0.1.2 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling parking_lot_core v0.4.0 [INFO] [stderr] Compiling memoffset v0.5.1 [INFO] [stderr] Checking iovec v0.1.2 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking num_cpus v1.10.1 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Checking crossbeam-epoch v0.7.2 [INFO] [stderr] Checking mio v0.6.19 [INFO] [stderr] Checking crossbeam-deque v0.7.1 [INFO] [stderr] Checking tokio-executor v0.1.8 [INFO] [stderr] Checking tokio-io v0.1.12 [INFO] [stderr] Checking tower-service v0.2.0 [INFO] [stderr] Checking tokio-sync v0.1.6 [INFO] [stderr] Checking tower-layer v0.1.0 [INFO] [stderr] Checking tower-discover v0.1.0 [INFO] [stderr] Checking tower-load-shed v0.1.0 [INFO] [stderr] Checking tokio-timer v0.2.11 [INFO] [stderr] Checking tokio-current-thread v0.1.6 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Checking tokio-codec v0.1.1 [INFO] [stderr] Checking tower-util v0.1.0 [INFO] [stderr] Checking tower-buffer v0.1.1 [INFO] [stderr] Checking tokio-threadpool v0.1.15 [INFO] [stderr] Checking tower-limit v0.1.0 [INFO] [stderr] Checking tower-timeout v0.1.1 [INFO] [stderr] Checking tower-retry v0.1.0 [INFO] [stderr] Checking parking_lot v0.7.1 [INFO] [stderr] Checking tower v0.1.1 [INFO] [stderr] Checking tokio-reactor v0.1.9 [INFO] [stderr] Checking tokio-fs v0.1.6 [INFO] [stderr] Checking tokio-udp v0.1.3 [INFO] [stderr] Checking tokio-tcp v0.1.3 [INFO] [stderr] Checking tokio-uds v0.2.5 [INFO] [stderr] Checking tokio v0.1.22 [INFO] [stderr] Checking tcpstream-play v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `tokio::codec::BytesCodec` [INFO] [stdout] --> examples/simple_server.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use tokio::codec::BytesCodec; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> examples/simple_server.rs:59:9 [INFO] [stdout] | [INFO] [stdout] 59 | let mut handler = Handler::new(socket); [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.79s [INFO] running `Command { std: "docker" "inspect" "95ae9ff6774bab29437f5eb817447e2e0cd537b08a1619bcf80fc711544c4f3d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "95ae9ff6774bab29437f5eb817447e2e0cd537b08a1619bcf80fc711544c4f3d", kill_on_drop: false }` [INFO] [stdout] 95ae9ff6774bab29437f5eb817447e2e0cd537b08a1619bcf80fc711544c4f3d