[INFO] fetching crate user_stable_vtable 0.3.0...
[INFO] testing user_stable_vtable-0.3.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate user_stable_vtable 0.3.0 into /workspace/builds/worker-54/source
[INFO] validating manifest of crates.io crate user_stable_vtable 0.3.0 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 user_stable_vtable 0.3.0
[INFO] finished tweaking crates.io crate user_stable_vtable 0.3.0
[INFO] tweaked toml for crates.io crate user_stable_vtable 0.3.0 written to /workspace/builds/worker-54/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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] 4498050aa8b82037363159868906a4a2ae2623a7b5b4c73ee386481a8f2ff108
[INFO] running `Command { std: "docker" "start" "-a" "4498050aa8b82037363159868906a4a2ae2623a7b5b4c73ee386481a8f2ff108", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4498050aa8b82037363159868906a4a2ae2623a7b5b4c73ee386481a8f2ff108", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4498050aa8b82037363159868906a4a2ae2623a7b5b4c73ee386481a8f2ff108", kill_on_drop: false }`
[INFO] [stdout] 4498050aa8b82037363159868906a4a2ae2623a7b5b4c73ee386481a8f2ff108
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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] 231c346861642ff0551e98cba619814e441da9f67f57e89fed82dde0eab6aea9
[INFO] running `Command { std: "docker" "start" "-a" "231c346861642ff0551e98cba619814e441da9f67f57e89fed82dde0eab6aea9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling user_stable_vtable v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "231c346861642ff0551e98cba619814e441da9f67f57e89fed82dde0eab6aea9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "231c346861642ff0551e98cba619814e441da9f67f57e89fed82dde0eab6aea9", kill_on_drop: false }`
[INFO] [stdout] 231c346861642ff0551e98cba619814e441da9f67f57e89fed82dde0eab6aea9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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] dbd8ae6a19577c9c09d58079d56e8280499b2220e44136c91e52a4084fde0991
[INFO] running `Command { std: "docker" "start" "-a" "dbd8ae6a19577c9c09d58079d56e8280499b2220e44136c91e52a4084fde0991", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling user_stable_vtable v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "dbd8ae6a19577c9c09d58079d56e8280499b2220e44136c91e52a4084fde0991", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbd8ae6a19577c9c09d58079d56e8280499b2220e44136c91e52a4084fde0991", kill_on_drop: false }`
[INFO] [stdout] dbd8ae6a19577c9c09d58079d56e8280499b2220e44136c91e52a4084fde0991
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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] 7a9add69a3f57f0a639103fa7958f71669d9a07e0eccde804697936fbbb4964e
[INFO] running `Command { std: "docker" "start" "-a" "7a9add69a3f57f0a639103fa7958f71669d9a07e0eccde804697936fbbb4964e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/user_stable_vtable-79af9ae2e91a7d9e)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test some_tests::test_ref_none_is_null ... ok
[INFO] [stdout] test some_tests::test_nonnull_none_is_null ... ok
[INFO] [stdout] test some_tests::test_ref_some_is_not_null - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests user_stable_vtable
[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" "7a9add69a3f57f0a639103fa7958f71669d9a07e0eccde804697936fbbb4964e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a9add69a3f57f0a639103fa7958f71669d9a07e0eccde804697936fbbb4964e", kill_on_drop: false }`
[INFO] [stdout] 7a9add69a3f57f0a639103fa7958f71669d9a07e0eccde804697936fbbb4964e