[INFO] fetching crate async-vfs 0.52.0...
[INFO] testing async-vfs-0.52.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate async-vfs 0.52.0 into /workspace/builds/worker-52/source
[INFO] validating manifest of crates.io crate async-vfs 0.52.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-vfs 0.52.0
[INFO] finished tweaking crates.io crate async-vfs 0.52.0
[INFO] tweaked toml for crates.io crate async-vfs 0.52.0 written to /workspace/builds/worker-52/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f3c51071de55b6370dbfed5a2d09cba7180bb704130fde5f6a7fee80cf5f3a3a
[INFO] running `Command { std: "docker" "start" "-a" "f3c51071de55b6370dbfed5a2d09cba7180bb704130fde5f6a7fee80cf5f3a3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3c51071de55b6370dbfed5a2d09cba7180bb704130fde5f6a7fee80cf5f3a3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3c51071de55b6370dbfed5a2d09cba7180bb704130fde5f6a7fee80cf5f3a3a", kill_on_drop: false }`
[INFO] [stdout] f3c51071de55b6370dbfed5a2d09cba7180bb704130fde5f6a7fee80cf5f3a3a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 70926a38b9faf8bb360cc88f8bf6ebc92da997ca6ce5f3064b85199c0d6e8132
[INFO] running `Command { std: "docker" "start" "-a" "70926a38b9faf8bb360cc88f8bf6ebc92da997ca6ce5f3064b85199c0d6e8132", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling async-trait v0.1.53
[INFO] [stderr]    Compiling futures-io v0.3.21
[INFO] [stderr]    Compiling fastrand v1.7.0
[INFO] [stderr]    Compiling futures-lite v1.12.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling async-vfs v0.52.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.74s
[INFO] running `Command { std: "docker" "inspect" "70926a38b9faf8bb360cc88f8bf6ebc92da997ca6ce5f3064b85199c0d6e8132", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70926a38b9faf8bb360cc88f8bf6ebc92da997ca6ce5f3064b85199c0d6e8132", kill_on_drop: false }`
[INFO] [stdout] 70926a38b9faf8bb360cc88f8bf6ebc92da997ca6ce5f3064b85199c0d6e8132
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b35f76233d415efc99cab55818523fdd05a40a3e2cd80ddf88aac334f5ef998f
[INFO] running `Command { std: "docker" "start" "-a" "b35f76233d415efc99cab55818523fdd05a40a3e2cd80ddf88aac334f5ef998f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling async-vfs v0.52.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.90s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/async_vfs-372f03e437e1af47)
[INFO] running `Command { std: "docker" "inspect" "b35f76233d415efc99cab55818523fdd05a40a3e2cd80ddf88aac334f5ef998f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b35f76233d415efc99cab55818523fdd05a40a3e2cd80ddf88aac334f5ef998f", kill_on_drop: false }`
[INFO] [stdout] b35f76233d415efc99cab55818523fdd05a40a3e2cd80ddf88aac334f5ef998f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7a38207b146a5801553a743d7532f9f757f64cb7554b3afaee77ff95665b49a4
[INFO] running `Command { std: "docker" "start" "-a" "7a38207b146a5801553a743d7532f9f757f64cb7554b3afaee77ff95665b49a4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/async_vfs-372f03e437e1af47)
[INFO] [stderr]    Doc-tests async-vfs
[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] [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" "7a38207b146a5801553a743d7532f9f757f64cb7554b3afaee77ff95665b49a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a38207b146a5801553a743d7532f9f757f64cb7554b3afaee77ff95665b49a4", kill_on_drop: false }`
[INFO] [stdout] 7a38207b146a5801553a743d7532f9f757f64cb7554b3afaee77ff95665b49a4