[INFO] fetching crate yield-return 0.2.0...
[INFO] building yield-return-0.2.0 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate yield-return 0.2.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate yield-return 0.2.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate yield-return 0.2.0
[INFO] tweaked toml for crates.io crate yield-return 0.2.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate yield-return 0.2.0 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate yield-return 0.2.0 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded slabmap v0.2.1
[INFO] [stderr]   Downloaded rt-local-macros v0.1.4
[INFO] [stderr]   Downloaded rt-local v0.1.4
[INFO] [stderr]   Downloaded structmeta-derive v0.3.0
[INFO] [stderr]   Downloaded structmeta v0.3.0
[INFO] [stderr]   Downloaded derive-ex v0.1.8
[INFO] [stderr]   Downloaded rt-local-core v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f85d79b6731ad3c99544272ce924bdfc9cf00916532fee54ad5564381f5b8316
[INFO] running `Command { std: "docker" "start" "-a" "f85d79b6731ad3c99544272ce924bdfc9cf00916532fee54ad5564381f5b8316", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f85d79b6731ad3c99544272ce924bdfc9cf00916532fee54ad5564381f5b8316", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f85d79b6731ad3c99544272ce924bdfc9cf00916532fee54ad5564381f5b8316", kill_on_drop: false }`
[INFO] [stdout] f85d79b6731ad3c99544272ce924bdfc9cf00916532fee54ad5564381f5b8316
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5c6c1130db5ee5f74da90da1337ced0aa658983907558e25cffe0e4601883f1
[INFO] running `Command { std: "docker" "start" "-a" "f5c6c1130db5ee5f74da90da1337ced0aa658983907558e25cffe0e4601883f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling yield-return v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "f5c6c1130db5ee5f74da90da1337ced0aa658983907558e25cffe0e4601883f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5c6c1130db5ee5f74da90da1337ced0aa658983907558e25cffe0e4601883f1", kill_on_drop: false }`
[INFO] [stdout] f5c6c1130db5ee5f74da90da1337ced0aa658983907558e25cffe0e4601883f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ddf59af564f6e5faf783c80204325f5d1aac81e49a8dbe308c89e9f8f2a42ba9
[INFO] running `Command { std: "docker" "start" "-a" "ddf59af564f6e5faf783c80204325f5d1aac81e49a8dbe308c89e9f8f2a42ba9", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]    Compiling structmeta-derive v0.3.0
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling rt-local-macros v0.1.4
[INFO] [stderr]    Compiling structmeta v0.3.0
[INFO] [stderr]    Compiling derive-ex v0.1.8
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling slabmap v0.2.1
[INFO] [stderr]    Compiling rt-local-core v0.1.3
[INFO] [stderr]    Compiling rt-local v0.1.4
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling yield-return v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 13.85s
[INFO] running `Command { std: "docker" "inspect" "ddf59af564f6e5faf783c80204325f5d1aac81e49a8dbe308c89e9f8f2a42ba9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddf59af564f6e5faf783c80204325f5d1aac81e49a8dbe308c89e9f8f2a42ba9", kill_on_drop: false }`
[INFO] [stdout] ddf59af564f6e5faf783c80204325f5d1aac81e49a8dbe308c89e9f8f2a42ba9