[INFO] cloning repository https://github.com/ggazzo/rust-ddp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ggazzo/rust-ddp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fggazzo%2Frust-ddp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fggazzo%2Frust-ddp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c79b64aa4cdb83287d282bdda7f998dca863b0e4
[INFO] checking ggazzo/rust-ddp against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fggazzo%2Frust-ddp" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ggazzo/rust-ddp on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ggazzo/rust-ddp
[INFO] finished tweaking git repo https://github.com/ggazzo/rust-ddp
[INFO] tweaked toml for git repo https://github.com/ggazzo/rust-ddp written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/ggazzo/rust-ddp already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-tungstenite v0.10.0
[INFO] [stderr]   Downloaded tokio v1.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74fca31f08625ceea09fd22425c8ed7363fac92c74ec86068e68a0f5127340c0
[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" "74fca31f08625ceea09fd22425c8ed7363fac92c74ec86068e68a0f5127340c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74fca31f08625ceea09fd22425c8ed7363fac92c74ec86068e68a0f5127340c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74fca31f08625ceea09fd22425c8ed7363fac92c74ec86068e68a0f5127340c0", kill_on_drop: false }`
[INFO] [stdout] 74fca31f08625ceea09fd22425c8ed7363fac92c74ec86068e68a0f5127340c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f9408410cb7a73c10b399a55e77d2d262060f549c5c6f6f563b564a2c7f5cfe
[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" "1f9408410cb7a73c10b399a55e77d2d262060f549c5c6f6f563b564a2c7f5cfe", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]     Checking cfg-if v0.1.10
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[INFO] [stderr]     Checking ddp_server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant is never used: `VERSIONS`
[INFO] [stdout]  --> src/ddp.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub const VERSIONS: &'static [&'static str; 3] = &["1", "pre2", "pre1"];
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Ejson`
[INFO] [stdout]  --> src/ddp.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub type Ejson = serde_json::Value;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `text`
[INFO] [stdout]   --> src/ddp.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 92 |     pub fn text<'l>(id: &'l str, method: &'l str, params: Option<&Vec<&Ejson>>) -> String {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `VERSIONS`
[INFO] [stdout]  --> src/ddp.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub const VERSIONS: &'static [&'static str; 3] = &["1", "pre2", "pre1"];
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Ejson`
[INFO] [stdout]  --> src/ddp.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub type Ejson = serde_json::Value;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `text`
[INFO] [stdout]   --> src/ddp.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 92 |     pub fn text<'l>(id: &'l str, method: &'l str, params: Option<&Vec<&Ejson>>) -> String {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 37s
[INFO] running `Command { std: "docker" "inspect" "1f9408410cb7a73c10b399a55e77d2d262060f549c5c6f6f563b564a2c7f5cfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f9408410cb7a73c10b399a55e77d2d262060f549c5c6f6f563b564a2c7f5cfe", kill_on_drop: false }`
[INFO] [stdout] 1f9408410cb7a73c10b399a55e77d2d262060f549c5c6f6f563b564a2c7f5cfe