[INFO] fetching crate rspec 1.0.0-beta.4...
[INFO] checking rspec-1.0.0-beta.4 against beta for pr-78714
[INFO] extracting crate rspec 1.0.0-beta.4 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate rspec 1.0.0-beta.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 rspec 1.0.0-beta.4
[INFO] finished tweaking crates.io crate rspec 1.0.0-beta.4
[INFO] tweaked toml for crates.io crate rspec 1.0.0-beta.4 written to /workspace/builds/worker-11/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] [stderr]     Blocking waiting for file lock on package cache
[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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 1227556535d70aa4f721f719133dd2e33193d4857b2bac6a521a07dd9b2c8569
[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" "1227556535d70aa4f721f719133dd2e33193d4857b2bac6a521a07dd9b2c8569", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1227556535d70aa4f721f719133dd2e33193d4857b2bac6a521a07dd9b2c8569", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1227556535d70aa4f721f719133dd2e33193d4857b2bac6a521a07dd9b2c8569", kill_on_drop: false }`
[INFO] [stdout] 1227556535d70aa4f721f719133dd2e33193d4857b2bac6a521a07dd9b2c8569
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 519e454d2850d9228bc56d43d3018eed53d07a22ae990014f7fce577983d903c
[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" "519e454d2850d9228bc56d43d3018eed53d07a22ae990014f7fce577983d903c", kill_on_drop: false }`
[INFO] [stderr]     Checking rayon v0.8.2
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]     Checking rspec v1.0.0-beta.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/block/context.rs:20:36
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub(crate) before_all: Vec<Box<Fn(&mut T)>>,
[INFO] [stdout]    |                                    ^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut 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/block/context.rs:21:37
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub(crate) before_each: Vec<Box<Fn(&mut T)>>,
[INFO] [stdout]    |                                     ^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut T)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/block/context.rs:22:35
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub(crate) after_all: Vec<Box<Fn(&mut T)>>,
[INFO] [stdout]    |                                   ^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut T)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/block/context.rs:23:36
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub(crate) after_each: Vec<Box<Fn(&mut T)>>,
[INFO] [stdout]    |                                    ^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut T)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/block/example.rs:7:30
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub(crate) function: Box<Fn(&T) -> ExampleReport>,
[INFO] [stdout]   |                              ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&T) -> ExampleReport`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/runner/mod.rs:32:24
[INFO] [stdout]    |
[INFO] [stdout] 32 |     observers: Vec<Arc<RunnerObserver>>,
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^ help: use `dyn`: `dyn RunnerObserver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/runner/mod.rs:37:65
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn new(configuration: Configuration, observers: Vec<Arc<RunnerObserver>>) -> Runner {
[INFO] [stdout]    |                                                                 ^^^^^^^^^^^^^^ help: use `dyn`: `dyn RunnerObserver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/runner/mod.rs:63:19
[INFO] [stdout]    |
[INFO] [stdout] 63 |         F: FnMut(&RunnerObserver),
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn RunnerObserver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Logger` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub use logger::Logger;
[INFO] [stdout]    |         -------------- the item `Logger` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 59 |     use logger::Logger;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ConfigurationBuilder` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:60:18
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub use runner::{Configuration, ConfigurationBuilder, Runner};
[INFO] [stdout]    |                                 -------------------- the item `ConfigurationBuilder` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 60 |     use runner::{ConfigurationBuilder, Runner};
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Runner` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:60:40
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub use runner::{Configuration, ConfigurationBuilder, Runner};
[INFO] [stdout]    |                                                       ------ the item `Runner` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 60 |     use runner::{ConfigurationBuilder, Runner};
[INFO] [stdout]    |                                        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/block/context.rs:20:36
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub(crate) before_all: Vec<Box<Fn(&mut T)>>,
[INFO] [stdout]    |                                    ^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut 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/block/context.rs:21:37
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub(crate) before_each: Vec<Box<Fn(&mut T)>>,
[INFO] [stdout]    |                                     ^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut T)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/block/context.rs:22:35
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub(crate) after_all: Vec<Box<Fn(&mut T)>>,
[INFO] [stdout]    |                                   ^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut T)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/block/context.rs:23:36
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub(crate) after_each: Vec<Box<Fn(&mut T)>>,
[INFO] [stdout]    |                                    ^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut T)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/block/example.rs:7:30
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub(crate) function: Box<Fn(&T) -> ExampleReport>,
[INFO] [stdout]   |                              ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&T) -> ExampleReport`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/runner/mod.rs:32:24
[INFO] [stdout]    |
[INFO] [stdout] 32 |     observers: Vec<Arc<RunnerObserver>>,
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^ help: use `dyn`: `dyn RunnerObserver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/runner/mod.rs:37:65
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn new(configuration: Configuration, observers: Vec<Arc<RunnerObserver>>) -> Runner {
[INFO] [stdout]    |                                                                 ^^^^^^^^^^^^^^ help: use `dyn`: `dyn RunnerObserver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/runner/mod.rs:63:19
[INFO] [stdout]    |
[INFO] [stdout] 63 |         F: FnMut(&RunnerObserver),
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn RunnerObserver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Logger` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub use logger::Logger;
[INFO] [stdout]    |         -------------- the item `Logger` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 59 |     use logger::Logger;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ConfigurationBuilder` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:60:18
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub use runner::{Configuration, ConfigurationBuilder, Runner};
[INFO] [stdout]    |                                 -------------------- the item `ConfigurationBuilder` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 60 |     use runner::{ConfigurationBuilder, Runner};
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Runner` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:60:40
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub use runner::{Configuration, ConfigurationBuilder, Runner};
[INFO] [stdout]    |                                                       ------ the item `Runner` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 60 |     use runner::{ConfigurationBuilder, Runner};
[INFO] [stdout]    |                                        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.42s
[INFO] running `Command { std: "docker" "inspect" "519e454d2850d9228bc56d43d3018eed53d07a22ae990014f7fce577983d903c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "519e454d2850d9228bc56d43d3018eed53d07a22ae990014f7fce577983d903c", kill_on_drop: false }`
[INFO] [stdout] 519e454d2850d9228bc56d43d3018eed53d07a22ae990014f7fce577983d903c