[INFO] cloning repository https://github.com/Guillaume-Mayer/tokio-echo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Guillaume-Mayer/tokio-echo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGuillaume-Mayer%2Ftokio-echo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGuillaume-Mayer%2Ftokio-echo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aa9325c0f0cd125c905b1e7b7e453a22d0d23f52
[INFO] checking Guillaume-Mayer/tokio-echo against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGuillaume-Mayer%2Ftokio-echo" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Guillaume-Mayer/tokio-echo on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Guillaume-Mayer/tokio-echo
[INFO] finished tweaking git repo https://github.com/Guillaume-Mayer/tokio-echo
[INFO] tweaked toml for git repo https://github.com/Guillaume-Mayer/tokio-echo written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Guillaume-Mayer/tokio-echo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded iovec v0.1.0
[INFO] [stderr]   Downloaded tokio-io v0.1.3
[INFO] [stderr]   Downloaded tokio-core v0.1.9
[INFO] [stderr]   Downloaded libc v0.2.31
[INFO] [stderr]   Downloaded mio v0.6.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ea165fb7f3c344913c87d9bb8bddfbd60ca791a2a0f9abe505952bdb4e95f3d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8ea165fb7f3c344913c87d9bb8bddfbd60ca791a2a0f9abe505952bdb4e95f3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ea165fb7f3c344913c87d9bb8bddfbd60ca791a2a0f9abe505952bdb4e95f3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ea165fb7f3c344913c87d9bb8bddfbd60ca791a2a0f9abe505952bdb4e95f3d", kill_on_drop: false }`
[INFO] [stdout] 8ea165fb7f3c344913c87d9bb8bddfbd60ca791a2a0f9abe505952bdb4e95f3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1a1a178422cf72bc99187a3be7af4d4ee36af562fb83f0e28735dd4ca163dfd2
[INFO] running `Command { std: "docker" "start" "-a" "1a1a178422cf72bc99187a3be7af4d4ee36af562fb83f0e28735dd4ca163dfd2", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking byteorder v1.1.0
[INFO] [stderr]     Checking log v0.3.8
[INFO] [stderr]     Checking futures v0.1.16
[INFO] [stderr]     Checking scoped-tls v0.1.0
[INFO] [stderr]     Checking iovec v0.1.0
[INFO] [stderr]     Checking net2 v0.2.31
[INFO] [stderr]     Checking bytes v0.4.5
[INFO] [stderr]     Checking mio v0.6.10
[INFO] [stderr]     Checking tokio-io v0.1.3
[INFO] [stderr]     Checking tokio-service v0.1.0
[INFO] [stderr]     Checking tokio-core v0.1.9
[INFO] [stderr]     Checking tokio-proto v0.1.1
[INFO] [stderr]     Checking echo-proto v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:82:23
[INFO] [stdout]    |
[INFO] [stdout] 82 |     type Future = Box<Future<Item = Self::Response, Error =  Self::Error>>;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Self::Response, Error =  Self::Error>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:95:23
[INFO] [stdout]    |
[INFO] [stdout] 95 |     type Future = Box<Future<Item = Self::Response, Error = Self::Error>>;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Self::Response, Error = Self::Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:82:23
[INFO] [stdout]    |
[INFO] [stdout] 82 |     type Future = Box<Future<Item = Self::Response, Error =  Self::Error>>;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Self::Response, Error =  Self::Error>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:95:23
[INFO] [stdout]    |
[INFO] [stdout] 95 |     type Future = Box<Future<Item = Self::Response, Error = Self::Error>>;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Self::Response, Error = Self::Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.84s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1a1a178422cf72bc99187a3be7af4d4ee36af562fb83f0e28735dd4ca163dfd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a1a178422cf72bc99187a3be7af4d4ee36af562fb83f0e28735dd4ca163dfd2", kill_on_drop: false }`
[INFO] [stdout] 1a1a178422cf72bc99187a3be7af4d4ee36af562fb83f0e28735dd4ca163dfd2