[INFO] fetching crate posemesh-compute-node 0.1.16...
[INFO] checking posemesh-compute-node-0.1.16 against master#642c19bfc3a5c1de985bf5d0cc8207ac9d22708a for pr-148577
[INFO] extracting crate posemesh-compute-node 0.1.16 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate posemesh-compute-node 0.1.16
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate posemesh-compute-node 0.1.16
[INFO] tweaked toml for crates.io crate posemesh-compute-node 0.1.16 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate posemesh-compute-node 0.1.16 on toolchain 642c19bfc3a5c1de985bf5d0cc8207ac9d22708a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate posemesh-compute-node 0.1.16 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" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "fetch" "--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]  Downloading crates ...
[INFO] [stderr]   Downloaded async-io v2.5.0
[INFO] [stderr]   Downloaded posemesh-compute-node-runner-api v0.1.2
[INFO] [stderr]   Downloaded posemesh-node-registration v0.1.5
[INFO] [stderr]   Downloaded polling v3.10.0
[INFO] [stderr]   Downloaded posemesh-domain-http v1.3.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a7ab67a291a45ff5564c1b9369dd7bf6fc9fca6f47d671774aaf3224de2cb6d
[INFO] running `Command { std: "docker" "start" "-a" "0a7ab67a291a45ff5564c1b9369dd7bf6fc9fca6f47d671774aaf3224de2cb6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a7ab67a291a45ff5564c1b9369dd7bf6fc9fca6f47d671774aaf3224de2cb6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a7ab67a291a45ff5564c1b9369dd7bf6fc9fca6f47d671774aaf3224de2cb6d", kill_on_drop: false }`
[INFO] [stdout] 0a7ab67a291a45ff5564c1b9369dd7bf6fc9fca6f47d671774aaf3224de2cb6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2d30faca5ccd0bea934c187ae722c5ed25d175a88ee11684a79ab012d16e9fe
[INFO] running `Command { std: "docker" "start" "-a" "a2d30faca5ccd0bea934c187ae722c5ed25d175a88ee11684a79ab012d16e9fe", kill_on_drop: false }`
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[INFO] [stderr]     Checking posemesh-node-registration v0.1.5
[INFO] [stderr]     Checking posemesh-compute-node v0.1.16 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `json`
[INFO] [stdout]  --> src/engine.rs:6:18
[INFO] [stdout]   |
[INFO] [stdout] 6 | use serde_json::{json, Value};
[INFO] [stdout]   |                  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `json`
[INFO] [stdout]  --> src/engine.rs:6:18
[INFO] [stdout]   |
[INFO] [stdout] 6 | use serde_json::{json, Value};
[INFO] [stdout]   |                  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.79s
[INFO] running `Command { std: "docker" "inspect" "a2d30faca5ccd0bea934c187ae722c5ed25d175a88ee11684a79ab012d16e9fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2d30faca5ccd0bea934c187ae722c5ed25d175a88ee11684a79ab012d16e9fe", kill_on_drop: false }`
[INFO] [stdout] a2d30faca5ccd0bea934c187ae722c5ed25d175a88ee11684a79ab012d16e9fe