[INFO] fetching crate promising-future 0.2.4...
[INFO] checking promising-future-0.2.4 against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] extracting crate promising-future 0.2.4 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate promising-future 0.2.4 on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate promising-future 0.2.4
[INFO] finished tweaking crates.io crate promising-future 0.2.4
[INFO] tweaked toml for crates.io crate promising-future 0.2.4 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d3d9ff420db710079aa8b147e68ec24b616a3dd9ab5ed6493962e9e84b0d801d
[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" "d3d9ff420db710079aa8b147e68ec24b616a3dd9ab5ed6493962e9e84b0d801d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3d9ff420db710079aa8b147e68ec24b616a3dd9ab5ed6493962e9e84b0d801d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3d9ff420db710079aa8b147e68ec24b616a3dd9ab5ed6493962e9e84b0d801d", kill_on_drop: false }`
[INFO] [stdout] d3d9ff420db710079aa8b147e68ec24b616a3dd9ab5ed6493962e9e84b0d801d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 840e3dca9db027160e2bac46017936ceebb7feac02e916cf40d7066808c29efe
[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" "840e3dca9db027160e2bac46017936ceebb7feac02e916cf40d7066808c29efe", kill_on_drop: false }`
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking promising-future v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/fnbox.rs:10:29
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub type Thunk<'a, P> = Box<FnBox<P> + Send + 'a>;
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox<P> + Send + 'a`
[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/fnbox.rs:10:29
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub type Thunk<'a, P> = Box<FnBox<P> + Send + 'a>;
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox<P> + Send + 'a`
[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] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> tests/tests.rs:520:29
[INFO] [stdout]     |
[INFO] [stdout] 520 |     let futcount = Arc::new(ATOMIC_USIZE_INIT);
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated constant: `AtomicUsize::new(0)`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> tests/tests.rs:514:29
[INFO] [stdout]     |
[INFO] [stdout] 514 |     use std::sync::atomic::{ATOMIC_USIZE_INIT, Ordering};
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.00s
[INFO] running `Command { std: "docker" "inspect" "840e3dca9db027160e2bac46017936ceebb7feac02e916cf40d7066808c29efe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "840e3dca9db027160e2bac46017936ceebb7feac02e916cf40d7066808c29efe", kill_on_drop: false }`
[INFO] [stdout] 840e3dca9db027160e2bac46017936ceebb7feac02e916cf40d7066808c29efe