[INFO] fetching crate writium-cache 0.1.3...
[INFO] checking writium-cache-0.1.3 against beta for pr-78714
[INFO] extracting crate writium-cache 0.1.3 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate writium-cache 0.1.3 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 writium-cache 0.1.3
[INFO] finished tweaking crates.io crate writium-cache 0.1.3
[INFO] tweaked toml for crates.io crate writium-cache 0.1.3 written to /workspace/builds/worker-0/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] [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] [stdout] 17b4786441d284f449e67435deba2afb624adf17fb41b2c86231deabbe98d626
[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" "17b4786441d284f449e67435deba2afb624adf17fb41b2c86231deabbe98d626", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17b4786441d284f449e67435deba2afb624adf17fb41b2c86231deabbe98d626", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17b4786441d284f449e67435deba2afb624adf17fb41b2c86231deabbe98d626", kill_on_drop: false }`
[INFO] [stdout] 17b4786441d284f449e67435deba2afb624adf17fb41b2c86231deabbe98d626
[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] e6b003aa10fd2fe3dee4a14f0a6157385ce3061493e26fdb93774f6d5bc50263
[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" "e6b003aa10fd2fe3dee4a14f0a6157385ce3061493e26fdb93774f6d5bc50263", 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] [stderr]     Checking data-encoding v1.2.0
[INFO] [stderr]     Checking serde_qs v0.3.0
[INFO] [stderr]     Checking writium v0.1.1
[INFO] [stderr]     Checking writium-cache v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/cache.rs:52:14
[INFO] [stdout]    |
[INFO] [stdout] 52 |     src: Box<CacheSource<Value=T>>,
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn CacheSource<Value=T>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/cache.rs:52:14
[INFO] [stdout]    |
[INFO] [stdout] 52 |     src: Box<CacheSource<Value=T>>,
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn CacheSource<Value=T>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.42s
[INFO] running `Command { std: "docker" "inspect" "e6b003aa10fd2fe3dee4a14f0a6157385ce3061493e26fdb93774f6d5bc50263", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6b003aa10fd2fe3dee4a14f0a6157385ce3061493e26fdb93774f6d5bc50263", kill_on_drop: false }`
[INFO] [stdout] e6b003aa10fd2fe3dee4a14f0a6157385ce3061493e26fdb93774f6d5bc50263