[INFO] fetching crate snowchains_core 0.5.2...
[INFO] checking snowchains_core-0.5.2 against beta for pr-78714
[INFO] extracting crate snowchains_core 0.5.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate snowchains_core 0.5.2 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 snowchains_core 0.5.2
[INFO] finished tweaking crates.io crate snowchains_core 0.5.2
[INFO] tweaked toml for crates.io crate snowchains_core 0.5.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate snowchains_core 0.5.2 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-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" "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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b624c15a74a9c57c21dc677a8d21e0cce1b0f659c2ddceab876722aa76503523
[INFO] running `Command { std: "docker" "start" "-a" "b624c15a74a9c57c21dc677a8d21e0cce1b0f659c2ddceab876722aa76503523", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b624c15a74a9c57c21dc677a8d21e0cce1b0f659c2ddceab876722aa76503523", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b624c15a74a9c57c21dc677a8d21e0cce1b0f659c2ddceab876722aa76503523", kill_on_drop: false }`
[INFO] [stdout] b624c15a74a9c57c21dc677a8d21e0cce1b0f659c2ddceab876722aa76503523
[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" "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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d6e750fe2d823c38a569a8e3ac6b39b90713a704acdcd4747e7602b9bccf5ad0
[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" "d6e750fe2d823c38a569a8e3ac6b39b90713a704acdcd4747e7602b9bccf5ad0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.45
[INFO] [stderr]    Compiling rayon-core v1.8.1
[INFO] [stderr]     Checking rprompt v1.0.5
[INFO] [stderr]    Compiling rayon v1.4.1
[INFO] [stderr]     Checking futures-channel v0.3.6
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking terminal_size v0.1.13
[INFO] [stderr]     Checking socket2 v0.3.15
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking termios v0.3.3
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking rpassword v5.0.0
[INFO] [stderr]     Checking fwdansi v1.1.0
[INFO] [stderr]     Checking ring v0.16.15
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking console v0.13.0
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking console v0.12.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking webpki v0.21.3
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking rustls v0.18.1
[INFO] [stderr]     Checking webpki-roots v0.19.0
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.1
[INFO] [stderr]    Compiling selectors v0.22.0
[INFO] [stderr]     Checking indicatif v0.15.0
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-rustls v0.14.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling phf_macros v0.8.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling futures-macro v0.3.6
[INFO] [stderr]    Compiling cssparser v0.27.2
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling cssparser-macros v0.6.0
[INFO] [stderr]    Compiling html5ever v0.25.1
[INFO] [stderr]    Compiling derive_more v0.99.11
[INFO] [stderr]    Compiling strum_macros v0.19.4
[INFO] [stderr]    Compiling structopt-derive v0.4.13
[INFO] [stderr]    Compiling easy-ext v0.2.3
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking time v0.2.22
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking strum v0.19.5
[INFO] [stderr]     Checking cookie v0.14.2
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]     Checking futures-util v0.3.6
[INFO] [stderr]     Checking structopt v0.3.20
[INFO] [stderr]     Checking serde v1.0.117
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking indexmap v1.6.0
[INFO] [stderr]     Checking string_cache v0.8.0
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking serde_yaml v0.8.13
[INFO] [stderr]     Checking humantime-serde v1.0.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking globset v0.4.5
[INFO] [stderr]     Checking h2 v0.2.6
[INFO] [stderr]     Checking insta v1.1.0
[INFO] [stderr]     Checking ignore v0.4.16
[INFO] [stderr]     Checking publicsuffix v1.5.4
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking prettytable-rs v0.8.0
[INFO] [stderr]     Checking cookie_store v0.12.0
[INFO] [stderr]    Compiling markup5ever v0.10.0
[INFO] [stderr]     Checking hyper v0.13.8
[INFO] [stderr]     Checking scraper v0.12.0
[INFO] [stderr]     Checking hyper-rustls v0.21.0
[INFO] [stderr]     Checking reqwest v0.10.8
[INFO] [stderr]     Checking snowchains_core v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 47s
[INFO] running `Command { std: "docker" "inspect" "d6e750fe2d823c38a569a8e3ac6b39b90713a704acdcd4747e7602b9bccf5ad0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6e750fe2d823c38a569a8e3ac6b39b90713a704acdcd4747e7602b9bccf5ad0", kill_on_drop: false }`
[INFO] [stdout] d6e750fe2d823c38a569a8e3ac6b39b90713a704acdcd4747e7602b9bccf5ad0