[INFO] fetching crate synthetic 0.0.0...
[INFO] testing synthetic-0.0.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate synthetic 0.0.0 into /workspace/builds/worker-36/source
[INFO] validating manifest of crates.io crate synthetic 0.0.0 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate synthetic 0.0.0
[INFO] finished tweaking crates.io crate synthetic 0.0.0
[INFO] tweaked toml for crates.io crate synthetic 0.0.0 written to /workspace/builds/worker-36/source/Cargo.toml
[INFO] crate crates.io crate synthetic 0.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6734b2f6ff5ac7957216b3e54c982b013e75592b89da08860cbe7379b85b3b81
[INFO] running `Command { std: "docker" "start" "-a" "6734b2f6ff5ac7957216b3e54c982b013e75592b89da08860cbe7379b85b3b81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6734b2f6ff5ac7957216b3e54c982b013e75592b89da08860cbe7379b85b3b81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6734b2f6ff5ac7957216b3e54c982b013e75592b89da08860cbe7379b85b3b81", kill_on_drop: false }`
[INFO] [stdout] 6734b2f6ff5ac7957216b3e54c982b013e75592b89da08860cbe7379b85b3b81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1da9aaa8a207441b3eccab68fe16f5f959669348dbcbea89eef365582309abf
[INFO] running `Command { std: "docker" "start" "-a" "c1da9aaa8a207441b3eccab68fe16f5f959669348dbcbea89eef365582309abf", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling synthetic v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.66s
[INFO] running `Command { std: "docker" "inspect" "c1da9aaa8a207441b3eccab68fe16f5f959669348dbcbea89eef365582309abf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1da9aaa8a207441b3eccab68fe16f5f959669348dbcbea89eef365582309abf", kill_on_drop: false }`
[INFO] [stdout] c1da9aaa8a207441b3eccab68fe16f5f959669348dbcbea89eef365582309abf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a1b60d3b8658c7a0b4c0b24922731e8deb7ffd3b64a3943fb52687ba6b08c2d
[INFO] running `Command { std: "docker" "start" "-a" "3a1b60d3b8658c7a0b4c0b24922731e8deb7ffd3b64a3943fb52687ba6b08c2d", kill_on_drop: false }`
[INFO] [stderr]    Compiling synthetic v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "3a1b60d3b8658c7a0b4c0b24922731e8deb7ffd3b64a3943fb52687ba6b08c2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a1b60d3b8658c7a0b4c0b24922731e8deb7ffd3b64a3943fb52687ba6b08c2d", kill_on_drop: false }`
[INFO] [stdout] 3a1b60d3b8658c7a0b4c0b24922731e8deb7ffd3b64a3943fb52687ba6b08c2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 778536e1d6eb2437107eb9b87c447a5fbad9d0b9ddf84f5ca4733d0bbf9b497f
[INFO] running `Command { std: "docker" "start" "-a" "778536e1d6eb2437107eb9b87c447a5fbad9d0b9ddf84f5ca4733d0bbf9b497f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/synthetic-17fc40332d0024b5)
[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" "778536e1d6eb2437107eb9b87c447a5fbad9d0b9ddf84f5ca4733d0bbf9b497f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "778536e1d6eb2437107eb9b87c447a5fbad9d0b9ddf84f5ca4733d0bbf9b497f", kill_on_drop: false }`
[INFO] [stdout] 778536e1d6eb2437107eb9b87c447a5fbad9d0b9ddf84f5ca4733d0bbf9b497f