[INFO] fetching crate mmr 0.0.0...
[INFO] testing mmr-0.0.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate mmr 0.0.0 into /workspace/builds/worker-68/source
[INFO] validating manifest of crates.io crate mmr 0.0.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mmr 0.0.0
[INFO] finished tweaking crates.io crate mmr 0.0.0
[INFO] tweaked toml for crates.io crate mmr 0.0.0 written to /workspace/builds/worker-68/source/Cargo.toml
[INFO] crate crates.io crate mmr 0.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 64793ab3b7da14d3bd140d5a7a93f01e6ad4493f9f4328f3e295a673f1b71356
[INFO] running `Command { std: "docker" "start" "-a" "64793ab3b7da14d3bd140d5a7a93f01e6ad4493f9f4328f3e295a673f1b71356", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64793ab3b7da14d3bd140d5a7a93f01e6ad4493f9f4328f3e295a673f1b71356", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64793ab3b7da14d3bd140d5a7a93f01e6ad4493f9f4328f3e295a673f1b71356", kill_on_drop: false }`
[INFO] [stdout] 64793ab3b7da14d3bd140d5a7a93f01e6ad4493f9f4328f3e295a673f1b71356
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9fbce17414d52c785119a63ba79fa1bd6dbc6e8f830640319c26c286ae0c030e
[INFO] running `Command { std: "docker" "start" "-a" "9fbce17414d52c785119a63ba79fa1bd6dbc6e8f830640319c26c286ae0c030e", kill_on_drop: false }`
[INFO] [stderr]    Compiling mmr v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `Command { std: "docker" "inspect" "9fbce17414d52c785119a63ba79fa1bd6dbc6e8f830640319c26c286ae0c030e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fbce17414d52c785119a63ba79fa1bd6dbc6e8f830640319c26c286ae0c030e", kill_on_drop: false }`
[INFO] [stdout] 9fbce17414d52c785119a63ba79fa1bd6dbc6e8f830640319c26c286ae0c030e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca153728c6a0aa36d5c6bfa6a644ae2fba6ac9b0adfbd0a7815bf427ffc155f1
[INFO] running `Command { std: "docker" "start" "-a" "ca153728c6a0aa36d5c6bfa6a644ae2fba6ac9b0adfbd0a7815bf427ffc155f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling mmr v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "ca153728c6a0aa36d5c6bfa6a644ae2fba6ac9b0adfbd0a7815bf427ffc155f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca153728c6a0aa36d5c6bfa6a644ae2fba6ac9b0adfbd0a7815bf427ffc155f1", kill_on_drop: false }`
[INFO] [stdout] ca153728c6a0aa36d5c6bfa6a644ae2fba6ac9b0adfbd0a7815bf427ffc155f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b93b32ce1e2b2ca1cc5501749d23b94554bf290456fb3a0ebe77021526e272b3
[INFO] running `Command { std: "docker" "start" "-a" "b93b32ce1e2b2ca1cc5501749d23b94554bf290456fb3a0ebe77021526e272b3", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mmr-8b591314390edc99)
[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" "b93b32ce1e2b2ca1cc5501749d23b94554bf290456fb3a0ebe77021526e272b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b93b32ce1e2b2ca1cc5501749d23b94554bf290456fb3a0ebe77021526e272b3", kill_on_drop: false }`
[INFO] [stdout] b93b32ce1e2b2ca1cc5501749d23b94554bf290456fb3a0ebe77021526e272b3