[INFO] fetching crate scavenger 1.7.6...
[INFO] checking scavenger-1.7.6 against beta-2020-07-24 for pr-75494-beta
[INFO] extracting crate scavenger 1.7.6 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate scavenger 1.7.6 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate scavenger 1.7.6
[INFO] finished tweaking crates.io crate scavenger 1.7.6
[INFO] tweaked toml for crates.io crate scavenger 1.7.6 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded aligned_alloc v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c280e49f6698f74578e86d09835f0241a04322d11285a56d6762a83ab786b93
[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" "9c280e49f6698f74578e86d09835f0241a04322d11285a56d6762a83ab786b93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c280e49f6698f74578e86d09835f0241a04322d11285a56d6762a83ab786b93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c280e49f6698f74578e86d09835f0241a04322d11285a56d6762a83ab786b93", kill_on_drop: false }`
[INFO] [stdout] 9c280e49f6698f74578e86d09835f0241a04322d11285a56d6762a83ab786b93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 96efae3136af68c84b85de9566ee7cb22125592bea58933baa3da8c5980e8ec1
[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" "96efae3136af68c84b85de9566ee7cb22125592bea58933baa3da8c5980e8ec1", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.39
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[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]    Compiling scavenger v1.7.6 (/opt/rustwide/workdir)
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[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/cpu_worker.rs:67:34
[INFO] [stdout]    |
[INFO] [stdout] 67 |     tx_empty_buffers: Sender<Box<Buffer + Send>>,
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^ help: use `dyn`: `dyn Buffer + Send`
[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/cpu_worker.rs:86:34
[INFO] [stdout]    |
[INFO] [stdout] 86 |     tx_empty_buffers: Sender<Box<Buffer + Send>>,
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^ help: use `dyn`: `dyn Buffer + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/miner.rs:305:51
[INFO] [stdout]     |
[INFO] [stdout] 305 |                 .send(Box::new(cpu_buffer) as Box<Buffer + Send>)
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^ help: use `dyn`: `dyn Buffer + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/plot.rs:97:90
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub fn new(path: &PathBuf, mut use_direct_io: bool, dummy: bool) -> Result<Plot, Box<Error>> {
[INFO] [stdout]    |                                                                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reader.rs:26:21
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub buffer: Box<Buffer + Send>,
[INFO] [stdout]    |                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn Buffer + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reader.rs:35:36
[INFO] [stdout]    |
[INFO] [stdout] 35 |     rx_empty_buffers: Receiver<Box<Buffer + Send>>,
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^ help: use `dyn`: `dyn Buffer + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reader.rs:36:34
[INFO] [stdout]    |
[INFO] [stdout] 36 |     tx_empty_buffers: Sender<Box<Buffer + Send>>,
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^ help: use `dyn`: `dyn Buffer + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reader.rs:49:40
[INFO] [stdout]    |
[INFO] [stdout] 49 |         rx_empty_buffers: Receiver<Box<Buffer + Send>>,
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^ help: use `dyn`: `dyn Buffer + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reader.rs:50:38
[INFO] [stdout]    |
[INFO] [stdout] 50 |         tx_empty_buffers: Sender<Box<Buffer + Send>>,
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^ help: use `dyn`: `dyn Buffer + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/cpu_worker.rs:67:34
[INFO] [stdout]    |
[INFO] [stdout] 67 |     tx_empty_buffers: Sender<Box<Buffer + Send>>,
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^ help: use `dyn`: `dyn Buffer + Send`
[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/cpu_worker.rs:86:34
[INFO] [stdout]    |
[INFO] [stdout] 86 |     tx_empty_buffers: Sender<Box<Buffer + Send>>,
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^ help: use `dyn`: `dyn Buffer + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/miner.rs:305:51
[INFO] [stdout]     |
[INFO] [stdout] 305 |                 .send(Box::new(cpu_buffer) as Box<Buffer + Send>)
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^ help: use `dyn`: `dyn Buffer + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/plot.rs:97:90
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub fn new(path: &PathBuf, mut use_direct_io: bool, dummy: bool) -> Result<Plot, Box<Error>> {
[INFO] [stdout]    |                                                                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reader.rs:26:21
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub buffer: Box<Buffer + Send>,
[INFO] [stdout]    |                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn Buffer + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reader.rs:35:36
[INFO] [stdout]    |
[INFO] [stdout] 35 |     rx_empty_buffers: Receiver<Box<Buffer + Send>>,
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^ help: use `dyn`: `dyn Buffer + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reader.rs:36:34
[INFO] [stdout]    |
[INFO] [stdout] 36 |     tx_empty_buffers: Sender<Box<Buffer + Send>>,
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^ help: use `dyn`: `dyn Buffer + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reader.rs:49:40
[INFO] [stdout]    |
[INFO] [stdout] 49 |         rx_empty_buffers: Receiver<Box<Buffer + Send>>,
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^ help: use `dyn`: `dyn Buffer + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reader.rs:50:38
[INFO] [stdout]    |
[INFO] [stdout] 50 |         tx_empty_buffers: Sender<Box<Buffer + Send>>,
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^ help: use `dyn`: `dyn Buffer + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 54s
[INFO] running `Command { std: "docker" "inspect" "96efae3136af68c84b85de9566ee7cb22125592bea58933baa3da8c5980e8ec1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96efae3136af68c84b85de9566ee7cb22125592bea58933baa3da8c5980e8ec1", kill_on_drop: false }`
[INFO] [stdout] 96efae3136af68c84b85de9566ee7cb22125592bea58933baa3da8c5980e8ec1
