[INFO] fetching crate cancellation 0.1.0...
[INFO] checking cancellation-0.1.0 against master#d902752866cbbdb331e3cf28ff6bba86ab0f6c62 for pr-77271
[INFO] extracting crate cancellation 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate cancellation 0.1.0 on toolchain d902752866cbbdb331e3cf28ff6bba86ab0f6c62
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d902752866cbbdb331e3cf28ff6bba86ab0f6c62" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cancellation 0.1.0
[INFO] finished tweaking crates.io crate cancellation 0.1.0
[INFO] tweaked toml for crates.io crate cancellation 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d902752866cbbdb331e3cf28ff6bba86ab0f6c62" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d902752866cbbdb331e3cf28ff6bba86ab0f6c62" "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" "+d902752866cbbdb331e3cf28ff6bba86ab0f6c62" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b8deb9083857add4f42afc2c9b311d62c6e822c3a6e86c2cb8c509094dc111a
[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" "5b8deb9083857add4f42afc2c9b311d62c6e822c3a6e86c2cb8c509094dc111a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b8deb9083857add4f42afc2c9b311d62c6e822c3a6e86c2cb8c509094dc111a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b8deb9083857add4f42afc2c9b311d62c6e822c3a6e86c2cb8c509094dc111a", kill_on_drop: false }`
[INFO] [stdout] 5b8deb9083857add4f42afc2c9b311d62c6e822c3a6e86c2cb8c509094dc111a
[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" "+d902752866cbbdb331e3cf28ff6bba86ab0f6c62" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 4fb79ede77f1e3e9d798d2c850fedc41bda67da57fb40b3051fcc188102c47cc
[INFO] running `Command { std: "docker" "start" "-a" "4fb79ede77f1e3e9d798d2c850fedc41bda67da57fb40b3051fcc188102c47cc", kill_on_drop: false }`
[INFO] [stderr]     Checking cancellation v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> lib.rs:161:25
[INFO] [stdout]     |
[INFO] [stdout] 161 |     on_cancel: &'a mut (FnOnceOption + Send + 'a),
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnOnceOption + 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]    --> lib.rs:330:37
[INFO] [stdout]     |
[INFO] [stdout] 330 |                 on_cancel: &'a mut (FnOnceOption + Send + 'a),
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnOnceOption + Send + 'a`
[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]   --> lib.rs:97:38
[INFO] [stdout]    |
[INFO] [stdout] 97 | use std::sync::atomic::{AtomicUsize, ATOMIC_USIZE_INIT, Ordering};
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^
[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]    --> lib.rs:135:13
[INFO] [stdout]     |
[INFO] [stdout] 135 |     status: ATOMIC_USIZE_INIT, //AtomicUsize::new(STATUS_CANNOT_BE_CANCELED),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated constant: `AtomicUsize::new(0)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> lib.rs:418:21
[INFO] [stdout]     |
[INFO] [stdout] 418 |         f.write_str(error::Error::description(self))
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> lib.rs:161:25
[INFO] [stdout]     |
[INFO] [stdout] 161 |     on_cancel: &'a mut (FnOnceOption + Send + 'a),
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnOnceOption + 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]    --> lib.rs:330:37
[INFO] [stdout]     |
[INFO] [stdout] 330 |                 on_cancel: &'a mut (FnOnceOption + Send + 'a),
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnOnceOption + Send + 'a`
[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]   --> lib.rs:97:38
[INFO] [stdout]    |
[INFO] [stdout] 97 | use std::sync::atomic::{AtomicUsize, ATOMIC_USIZE_INIT, Ordering};
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^
[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]    --> lib.rs:135:13
[INFO] [stdout]     |
[INFO] [stdout] 135 |     status: ATOMIC_USIZE_INIT, //AtomicUsize::new(STATUS_CANNOT_BE_CANCELED),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated constant: `AtomicUsize::new(0)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> lib.rs:418:21
[INFO] [stdout]     |
[INFO] [stdout] 418 |         f.write_str(error::Error::description(self))
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "4fb79ede77f1e3e9d798d2c850fedc41bda67da57fb40b3051fcc188102c47cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fb79ede77f1e3e9d798d2c850fedc41bda67da57fb40b3051fcc188102c47cc", kill_on_drop: false }`
[INFO] [stdout] 4fb79ede77f1e3e9d798d2c850fedc41bda67da57fb40b3051fcc188102c47cc