[INFO] fetching crate ytitler 0.1.1...
[INFO] checking ytitler-0.1.1 against beta for pr-78714
[INFO] extracting crate ytitler 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate ytitler 0.1.1 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 ytitler 0.1.1
[INFO] finished tweaking crates.io crate ytitler 0.1.1
[INFO] tweaked toml for crates.io crate ytitler 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] f09c123d671fc5fdbbabeec077c9733bbd59f6613b2aca9bf1a7663138d4b2fa
[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" "f09c123d671fc5fdbbabeec077c9733bbd59f6613b2aca9bf1a7663138d4b2fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f09c123d671fc5fdbbabeec077c9733bbd59f6613b2aca9bf1a7663138d4b2fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f09c123d671fc5fdbbabeec077c9733bbd59f6613b2aca9bf1a7663138d4b2fa", kill_on_drop: false }`
[INFO] [stdout] f09c123d671fc5fdbbabeec077c9733bbd59f6613b2aca9bf1a7663138d4b2fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] fb4630e5b78b39376ad8218ad7acb1b0cd6e9c0ae3527c9395ab270b678949ba
[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" "fb4630e5b78b39376ad8218ad7acb1b0cd6e9c0ae3527c9395ab270b678949ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling native-tls v0.2.6
[INFO] [stderr]     Checking try_from v0.3.2
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]     Checking flate2 v1.0.19
[INFO] [stderr]     Checking url v2.2.0
[INFO] [stderr]     Checking pbr v1.0.3
[INFO] [stderr]     Checking cookie v0.12.0
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking publicsuffix v1.5.4
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking reqwest v0.9.24
[INFO] [stderr]     Checking ytitler v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.19s
[INFO] running `Command { std: "docker" "inspect" "fb4630e5b78b39376ad8218ad7acb1b0cd6e9c0ae3527c9395ab270b678949ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb4630e5b78b39376ad8218ad7acb1b0cd6e9c0ae3527c9395ab270b678949ba", kill_on_drop: false }`
[INFO] [stdout] fb4630e5b78b39376ad8218ad7acb1b0cd6e9c0ae3527c9395ab270b678949ba