[INFO] cloning repository https://github.com/ploys/ploys
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ploys/ploys" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fploys%2Fploys", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fploys%2Fploys'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d1c0d76ad58b4cb34909d1cdb144ea23cd71d7bb
[INFO] checking ploys/ploys against try#901e6d56697c79b2e80df6a487b2318ec6f57ee3 for pr-142287
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fploys%2Fploys" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ploys/ploys on toolchain 901e6d56697c79b2e80df6a487b2318ec6f57ee3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ploys/ploys
[INFO] finished tweaking git repo https://github.com/ploys/ploys
[INFO] tweaked toml for git repo https://github.com/ploys/ploys written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ploys/ploys 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" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ed7f7eee6de2d83c48516adc0d01aaa0a979d733f0e955a587aec92d3ba53058
[INFO] running `Command { std: "docker" "start" "-a" "ed7f7eee6de2d83c48516adc0d01aaa0a979d733f0e955a587aec92d3ba53058", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed7f7eee6de2d83c48516adc0d01aaa0a979d733f0e955a587aec92d3ba53058", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed7f7eee6de2d83c48516adc0d01aaa0a979d733f0e955a587aec92d3ba53058", kill_on_drop: false }`
[INFO] [stdout] ed7f7eee6de2d83c48516adc0d01aaa0a979d733f0e955a587aec92d3ba53058
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 625de9704ecfc908427224f21942e4bc4d2fc4d3a5cd652e12cf56c25c65300b
[INFO] running `Command { std: "docker" "start" "-a" "625de9704ecfc908427224f21942e4bc4d2fc4d3a5cd652e12cf56c25c65300b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
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[INFO] [stderr]     Checking gix-submodule v0.17.0
[INFO] [stderr]     Checking gix-archive v0.19.0
[INFO] [stderr]     Checking gix-negotiate v0.18.0
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[INFO] [stderr]     Checking cpufeatures v0.2.12
[INFO] [stderr]     Checking urlencoding v2.1.3
[INFO] [stderr]     Checking opentelemetry v0.21.0
[INFO] [stderr]     Checking gix-odb v0.67.0
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking webpki-roots v0.25.4
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[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stdout] error[E0515]: cannot return value referencing temporary value
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/opentelemetry-0.21.0/src/trace/context.rs:284:13
[INFO] [stdout]     |
[INFO] [stdout] 284 |             SpanRef(&NOOP_SPAN)
[INFO] [stdout]     |             ^^^^^^^^^---------^
[INFO] [stdout]     |             |        |
[INFO] [stdout]     |             |        temporary value created here
[INFO] [stdout]     |             returns a value referencing data owned by the current function
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0515`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `opentelemetry` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "625de9704ecfc908427224f21942e4bc4d2fc4d3a5cd652e12cf56c25c65300b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "625de9704ecfc908427224f21942e4bc4d2fc4d3a5cd652e12cf56c25c65300b", kill_on_drop: false }`
[INFO] [stdout] 625de9704ecfc908427224f21942e4bc4d2fc4d3a5cd652e12cf56c25c65300b