[INFO] fetching crate gcemeta 0.1.4...
[INFO] checking gcemeta-0.1.4 against beta for pr-78714
[INFO] extracting crate gcemeta 0.1.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate gcemeta 0.1.4 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 gcemeta 0.1.4
[INFO] finished tweaking crates.io crate gcemeta 0.1.4
[INFO] tweaked toml for crates.io crate gcemeta 0.1.4 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate gcemeta 0.1.4 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stdout] cac636b79c98e3bad101740687c804dc406e7d67be44cd5afc92d07f45cc2728
[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" "cac636b79c98e3bad101740687c804dc406e7d67be44cd5afc92d07f45cc2728", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cac636b79c98e3bad101740687c804dc406e7d67be44cd5afc92d07f45cc2728", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cac636b79c98e3bad101740687c804dc406e7d67be44cd5afc92d07f45cc2728", kill_on_drop: false }`
[INFO] [stdout] cac636b79c98e3bad101740687c804dc406e7d67be44cd5afc92d07f45cc2728
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 94cf4d3015090c1c6269bef97b6956ce1468b16d501a4ba6ada1b0eec1934a8d
[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" "94cf4d3015090c1c6269bef97b6956ce1468b16d501a4ba6ada1b0eec1934a8d", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.57
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]     Checking adler v0.2.2
[INFO] [stderr]     Checking ascii v0.8.7
[INFO] [stderr]     Checking chunked_transfer v0.3.1
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking filetime v0.2.10
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking gzip-header v0.3.0
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]     Checking buf_redux v0.8.4
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking serde_json v1.0.56
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]     Checking miniz_oxide v0.4.0
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking flate2 v1.0.16
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]     Checking attohttpc v0.15.0
[INFO] [stderr]     Checking tiny_http v0.6.2
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking gcemeta v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling mime_guess v1.8.8
[INFO] [stderr]     Checking multipart v0.15.4
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]     Checking brotli2 v0.3.2
[INFO] [stderr]     Checking rouille v3.0.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.72s
[INFO] running `Command { std: "docker" "inspect" "94cf4d3015090c1c6269bef97b6956ce1468b16d501a4ba6ada1b0eec1934a8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94cf4d3015090c1c6269bef97b6956ce1468b16d501a4ba6ada1b0eec1934a8d", kill_on_drop: false }`
[INFO] [stdout] 94cf4d3015090c1c6269bef97b6956ce1468b16d501a4ba6ada1b0eec1934a8d