[INFO] fetching crate synthesis 0.0.0...
[INFO] testing synthesis-0.0.0 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate synthesis 0.0.0 into /workspace/builds/worker-49/source
[INFO] validating manifest of crates.io crate synthesis 0.0.0 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-49/source/.cargo/config.toml
[INFO] started tweaking crates.io crate synthesis 0.0.0
[INFO] finished tweaking crates.io crate synthesis 0.0.0
[INFO] tweaked toml for crates.io crate synthesis 0.0.0 written to /workspace/builds/worker-49/source/Cargo.toml
[INFO] crate crates.io crate synthesis 0.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f1c261d444f606d45d38689dce7b15a6eba3f19699bb547b272e615a7f7e843
[INFO] running `Command { std: "docker" "start" "-a" "2f1c261d444f606d45d38689dce7b15a6eba3f19699bb547b272e615a7f7e843", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f1c261d444f606d45d38689dce7b15a6eba3f19699bb547b272e615a7f7e843", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f1c261d444f606d45d38689dce7b15a6eba3f19699bb547b272e615a7f7e843", kill_on_drop: false }`
[INFO] [stdout] 2f1c261d444f606d45d38689dce7b15a6eba3f19699bb547b272e615a7f7e843
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4e5621e9929fea52b17f0e43558bb937575614531a121e73665e208375c6447
[INFO] running `Command { std: "docker" "start" "-a" "d4e5621e9929fea52b17f0e43558bb937575614531a121e73665e208375c6447", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling synthesis v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `Command { std: "docker" "inspect" "d4e5621e9929fea52b17f0e43558bb937575614531a121e73665e208375c6447", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4e5621e9929fea52b17f0e43558bb937575614531a121e73665e208375c6447", kill_on_drop: false }`
[INFO] [stdout] d4e5621e9929fea52b17f0e43558bb937575614531a121e73665e208375c6447
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dfb12e9c8dcf5db404664a761c2d6fb1c5efe0970b0f27966530444c79dfc374
[INFO] running `Command { std: "docker" "start" "-a" "dfb12e9c8dcf5db404664a761c2d6fb1c5efe0970b0f27966530444c79dfc374", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling synthesis v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "dfb12e9c8dcf5db404664a761c2d6fb1c5efe0970b0f27966530444c79dfc374", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfb12e9c8dcf5db404664a761c2d6fb1c5efe0970b0f27966530444c79dfc374", kill_on_drop: false }`
[INFO] [stdout] dfb12e9c8dcf5db404664a761c2d6fb1c5efe0970b0f27966530444c79dfc374
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 33cf440ef8fb544cb94f7165fabc5e31ff62bb7dee95a25401e3a7c372ed688b
[INFO] running `Command { std: "docker" "start" "-a" "33cf440ef8fb544cb94f7165fabc5e31ff62bb7dee95a25401e3a7c372ed688b", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/synthesis-c3da04879a334dd0)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "33cf440ef8fb544cb94f7165fabc5e31ff62bb7dee95a25401e3a7c372ed688b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33cf440ef8fb544cb94f7165fabc5e31ff62bb7dee95a25401e3a7c372ed688b", kill_on_drop: false }`
[INFO] [stdout] 33cf440ef8fb544cb94f7165fabc5e31ff62bb7dee95a25401e3a7c372ed688b