[INFO] crate wheelbuf 0.2.0 is already in cache
[INFO] testing wheelbuf-0.2.0 against 1.45.2 for beta-1.46-1
[INFO] extracting crate wheelbuf 0.2.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate wheelbuf 0.2.0 on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wheelbuf 0.2.0
[INFO] finished tweaking crates.io crate wheelbuf 0.2.0
[INFO] tweaked toml for crates.io crate wheelbuf 0.2.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] abb7560eb7dfd34d2100a35ecd88b28c3cff1486386e36bea70f753f5d0d0163
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "abb7560eb7dfd34d2100a35ecd88b28c3cff1486386e36bea70f753f5d0d0163", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "abb7560eb7dfd34d2100a35ecd88b28c3cff1486386e36bea70f753f5d0d0163", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abb7560eb7dfd34d2100a35ecd88b28c3cff1486386e36bea70f753f5d0d0163", kill_on_drop: false }`
[INFO] [stdout] abb7560eb7dfd34d2100a35ecd88b28c3cff1486386e36bea70f753f5d0d0163
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a2b3bfd753da005a8d71bae4b5197555cc7db83cdde5b27a3fff264fabe4ca6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5a2b3bfd753da005a8d71bae4b5197555cc7db83cdde5b27a3fff264fabe4ca6", kill_on_drop: false }`
[INFO] [stderr]    Compiling wheelbuf v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "5a2b3bfd753da005a8d71bae4b5197555cc7db83cdde5b27a3fff264fabe4ca6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a2b3bfd753da005a8d71bae4b5197555cc7db83cdde5b27a3fff264fabe4ca6", kill_on_drop: false }`
[INFO] [stdout] 5a2b3bfd753da005a8d71bae4b5197555cc7db83cdde5b27a3fff264fabe4ca6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a490ed73634ac07c4bd0cd5ab9b8d1c77b3a0c2d000c04973a2b6f0e8249ca32
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a490ed73634ac07c4bd0cd5ab9b8d1c77b3a0c2d000c04973a2b6f0e8249ca32", kill_on_drop: false }`
[INFO] [stderr]    Compiling wheelbuf v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `Command { std: "docker" "inspect" "a490ed73634ac07c4bd0cd5ab9b8d1c77b3a0c2d000c04973a2b6f0e8249ca32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a490ed73634ac07c4bd0cd5ab9b8d1c77b3a0c2d000c04973a2b6f0e8249ca32", kill_on_drop: false }`
[INFO] [stdout] a490ed73634ac07c4bd0cd5ab9b8d1c77b3a0c2d000c04973a2b6f0e8249ca32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2dfc8f2947f5a0424c353f7d2b04ba045ef87c39f0605b9fbc9e148c28a2014e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2dfc8f2947f5a0424c353f7d2b04ba045ef87c39f0605b9fbc9e148c28a2014e", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] running 4 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/wheelbuf-8a221d1ae6ea6b0d
[INFO] [stdout] test tests::nth ... ok
[INFO] [stderr]    Doc-tests wheelbuf
[INFO] [stdout] test tests::using_vec ... ok
[INFO] [stdout] test tests::write ... ok
[INFO] [stdout] test tests::basics ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2dfc8f2947f5a0424c353f7d2b04ba045ef87c39f0605b9fbc9e148c28a2014e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dfc8f2947f5a0424c353f7d2b04ba045ef87c39f0605b9fbc9e148c28a2014e", kill_on_drop: false }`
[INFO] [stdout] 2dfc8f2947f5a0424c353f7d2b04ba045ef87c39f0605b9fbc9e148c28a2014e