[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#3d9fdbff4f377de96b3a51174e7a64086bee9a5c for pr-81477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fggazzo%2Frust-ddp" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ggazzo/rust-ddp on toolchain 3d9fdbff4f377de96b3a51174e7a64086bee9a5c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "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-14/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" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 51ba93197232638f1eb94ec215bc6d7d97f5a52eeb609fbe21f0b54ed6774dd5
[INFO] running `Command { std: "docker" "start" "-a" "51ba93197232638f1eb94ec215bc6d7d97f5a52eeb609fbe21f0b54ed6774dd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51ba93197232638f1eb94ec215bc6d7d97f5a52eeb609fbe21f0b54ed6774dd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51ba93197232638f1eb94ec215bc6d7d97f5a52eeb609fbe21f0b54ed6774dd5", kill_on_drop: false }`
[INFO] [stdout] 51ba93197232638f1eb94ec215bc6d7d97f5a52eeb609fbe21f0b54ed6774dd5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c05344319455379ecf0497ce243a1e20e4446811e84dee91cc35b2bdff13a90e
[INFO] running `Command { std: "docker" "start" "-a" "c05344319455379ecf0497ce243a1e20e4446811e84dee91cc35b2bdff13a90e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.53
[INFO] [stderr]     Checking once_cell v1.5.2
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[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 31.71s
[INFO] running `Command { std: "docker" "inspect" "c05344319455379ecf0497ce243a1e20e4446811e84dee91cc35b2bdff13a90e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c05344319455379ecf0497ce243a1e20e4446811e84dee91cc35b2bdff13a90e", kill_on_drop: false }`
[INFO] [stdout] c05344319455379ecf0497ce243a1e20e4446811e84dee91cc35b2bdff13a90e