[INFO] fetching crate yt-api 0.3.0-alpha.1...
[INFO] checking yt-api-0.3.0-alpha.1 against beta for pr-78714
[INFO] extracting crate yt-api 0.3.0-alpha.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate yt-api 0.3.0-alpha.1 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate yt-api 0.3.0-alpha.1
[INFO] finished tweaking crates.io crate yt-api 0.3.0-alpha.1
[INFO] tweaked toml for crates.io crate yt-api 0.3.0-alpha.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate yt-api 0.3.0-alpha.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a1d9fc04ec6fdaaeada446e1690f0d5b025a2e4a85dd6d2c566ffc15d244800f
[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" "a1d9fc04ec6fdaaeada446e1690f0d5b025a2e4a85dd6d2c566ffc15d244800f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1d9fc04ec6fdaaeada446e1690f0d5b025a2e4a85dd6d2c566ffc15d244800f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1d9fc04ec6fdaaeada446e1690f0d5b025a2e4a85dd6d2c566ffc15d244800f", kill_on_drop: false }`
[INFO] [stdout] a1d9fc04ec6fdaaeada446e1690f0d5b025a2e4a85dd6d2c566ffc15d244800f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=forbid" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e1de1077c1a41eaa4ea277b185f7e1bae9a828dd00f0c63ab0e09619c356ea9
[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" "0e1de1077c1a41eaa4ea277b185f7e1bae9a828dd00f0c63ab0e09619c356ea9", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.46
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling curl v0.4.25
[INFO] [stderr]     Checking async-ready v3.0.0
[INFO] [stderr]    Compiling isahc v0.7.4
[INFO] [stderr]     Checking async-datagram v3.0.0
[INFO] [stderr]    Compiling doc-comment v0.3.1
[INFO] [stderr]    Compiling unicase v2.5.1
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking unicode-normalization v0.1.8
[INFO] [stderr]     Checking lock_api v0.3.1
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking socket2 v0.3.11
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling snafu-derive v0.5.0
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking sluice v0.4.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling mime_guess v2.0.1
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking http v0.1.19
[INFO] [stderr]     Checking crossbeam v0.7.2
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.2
[INFO] [stderr]    Compiling openssl-sys v0.9.52
[INFO] [stderr]    Compiling curl-sys v0.4.23
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking url v2.1.0
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking error-chain v0.12.1
[INFO] [stderr]     Checking snafu v0.5.0
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking juliex v0.3.0-alpha.8
[INFO] [stderr]     Checking futures-timer v0.3.0
[INFO] [stderr]     Checking romio v0.3.0-alpha.10
[INFO] [stderr]     Checking runtime-raw v0.3.0-alpha.5
[INFO] [stderr]     Checking runtime-native v0.3.0-alpha.6
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling runtime-attributes v0.3.0-alpha.6
[INFO] [stderr]     Checking runtime v0.3.0-alpha.7
[INFO] [stderr]     Checking serde v1.0.101
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking serde_qs v0.5.0
[INFO] [stderr]     Checking surf v1.0.2
[INFO] [stderr]     Checking yt-api v0.3.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 14s
[INFO] running `Command { std: "docker" "inspect" "0e1de1077c1a41eaa4ea277b185f7e1bae9a828dd00f0c63ab0e09619c356ea9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e1de1077c1a41eaa4ea277b185f7e1bae9a828dd00f0c63ab0e09619c356ea9", kill_on_drop: false }`
[INFO] [stdout] 0e1de1077c1a41eaa4ea277b185f7e1bae9a828dd00f0c63ab0e09619c356ea9