[INFO] cloning repository https://github.com/jean-airoldie/fbs-payload-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jean-airoldie/fbs-payload-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjean-airoldie%2Ffbs-payload-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjean-airoldie%2Ffbs-payload-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 95a18b49da0ee59ee870d160317fc8bcc4608f1e
[INFO] checking jean-airoldie/fbs-payload-example against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjean-airoldie%2Ffbs-payload-example" "/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/jean-airoldie/fbs-payload-example on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jean-airoldie/fbs-payload-example
[INFO] finished tweaking git repo https://github.com/jean-airoldie/fbs-payload-example
[INFO] tweaked toml for git repo https://github.com/jean-airoldie/fbs-payload-example written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/jean-airoldie/fbs-payload-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded flatbuffers v0.5.0
[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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f45b99cd8b3a9fd960497bc4e0fe98afa6e56c2177853628c3e9eb09035248c
[INFO] running `Command { std: "docker" "start" "-a" "4f45b99cd8b3a9fd960497bc4e0fe98afa6e56c2177853628c3e9eb09035248c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f45b99cd8b3a9fd960497bc4e0fe98afa6e56c2177853628c3e9eb09035248c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f45b99cd8b3a9fd960497bc4e0fe98afa6e56c2177853628c3e9eb09035248c", kill_on_drop: false }`
[INFO] [stdout] 4f45b99cd8b3a9fd960497bc4e0fe98afa6e56c2177853628c3e9eb09035248c
[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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 74f94fc642767f57ca73d1e141e33dc4fa398fd36f60f6a04cb9a1293652bb98
[INFO] running `Command { std: "docker" "start" "-a" "74f94fc642767f57ca73d1e141e33dc4fa398fd36f60f6a04cb9a1293652bb98", kill_on_drop: false }`
[INFO] [stderr]     Checking smallvec v0.6.7
[INFO] [stderr]     Checking flatbuffers v0.5.0
[INFO] [stderr]     Checking fbs-payload v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `bytes_vec`
[INFO] [stdout]   --> src/main.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let bytes_vec = payload.to_bytes(&mut self.builder);
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes_vec`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes_vec`
[INFO] [stdout]   --> src/main.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let bytes_vec = payload.to_bytes(&mut self.builder);
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes_vec`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `Command { std: "docker" "inspect" "74f94fc642767f57ca73d1e141e33dc4fa398fd36f60f6a04cb9a1293652bb98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74f94fc642767f57ca73d1e141e33dc4fa398fd36f60f6a04cb9a1293652bb98", kill_on_drop: false }`
[INFO] [stdout] 74f94fc642767f57ca73d1e141e33dc4fa398fd36f60f6a04cb9a1293652bb98