[INFO] crate scavenger 1.7.6 is already in cache
[INFO] checking scavenger-1.7.6 against try#d27c6c6a469a28343396a8f3ac1c9d403aabda69 for pr-66037
[INFO] extracting crate scavenger 1.7.6 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate scavenger 1.7.6 on toolchain d27c6c6a469a28343396a8f3ac1c9d403aabda69
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 00ad4643645e1653db97753dc95dc880d242dcc37068955e34925b35b0b767a0
[INFO] running `"docker" "start" "-a" "00ad4643645e1653db97753dc95dc880d242dcc37068955e34925b35b0b767a0"`
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling scavenger v1.7.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking page_size v0.4.2
[INFO] [stderr]     Checking core_affinity v0.5.10
[INFO] [stderr]     Checking clap v2.30.0
[INFO] [stderr]     Checking serde_yaml v0.8.11
[INFO] [stderr]     Checking serde-value v0.5.3
[INFO] [stderr]     Checking url_serde v0.2.0
[INFO] [stderr]     Checking stopwatch v0.0.7
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking tokio-threadpool v0.1.17
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]     Checking rustls v0.16.0
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking log4rs v0.8.3
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking tokio-reactor v0.1.11
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-udp v0.1.5
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking tokio-rustls v0.10.3
[INFO] [stderr]     Checking hyper v0.12.35
[INFO] [stderr]     Checking hyper-rustls v0.17.1
[INFO] [stderr]     Checking reqwest v0.9.24
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cpu_worker.rs:67:34
[INFO] [stderr]    |
[INFO] [stderr] 67 |     tx_empty_buffers: Sender<Box<Buffer + Send>>,
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^ help: use `dyn`: `dyn Buffer + Send`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cpu_worker.rs:86:34
[INFO] [stderr]    |
[INFO] [stderr] 86 |     tx_empty_buffers: Sender<Box<Buffer + Send>>,
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^ help: use `dyn`: `dyn Buffer + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/miner.rs:305:51
[INFO] [stderr]     |
[INFO] [stderr] 305 |                 .send(Box::new(cpu_buffer) as Box<Buffer + Send>)
[INFO] [stderr]     |                                                   ^^^^^^^^^^^^^ help: use `dyn`: `dyn Buffer + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/plot.rs:97:90
[INFO] [stderr]    |
[INFO] [stderr] 97 |     pub fn new(path: &PathBuf, mut use_direct_io: bool, dummy: bool) -> Result<Plot, Box<Error>> {
[INFO] [stderr]    |                                                                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reader.rs:26:21
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub buffer: Box<Buffer + Send>,
[INFO] [stderr]    |                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn Buffer + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reader.rs:35:36
[INFO] [stderr]    |
[INFO] [stderr] 35 |     rx_empty_buffers: Receiver<Box<Buffer + Send>>,
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^ help: use `dyn`: `dyn Buffer + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reader.rs:36:34
[INFO] [stderr]    |
[INFO] [stderr] 36 |     tx_empty_buffers: Sender<Box<Buffer + Send>>,
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^ help: use `dyn`: `dyn Buffer + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reader.rs:49:40
[INFO] [stderr]    |
[INFO] [stderr] 49 |         rx_empty_buffers: Receiver<Box<Buffer + Send>>,
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^ help: use `dyn`: `dyn Buffer + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reader.rs:50:38
[INFO] [stderr]    |
[INFO] [stderr] 50 |         tx_empty_buffers: Sender<Box<Buffer + Send>>,
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^ help: use `dyn`: `dyn Buffer + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cpu_worker.rs:67:34
[INFO] [stderr]    |
[INFO] [stderr] 67 |     tx_empty_buffers: Sender<Box<Buffer + Send>>,
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^ help: use `dyn`: `dyn Buffer + Send`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cpu_worker.rs:86:34
[INFO] [stderr]    |
[INFO] [stderr] 86 |     tx_empty_buffers: Sender<Box<Buffer + Send>>,
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^ help: use `dyn`: `dyn Buffer + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/miner.rs:305:51
[INFO] [stderr]     |
[INFO] [stderr] 305 |                 .send(Box::new(cpu_buffer) as Box<Buffer + Send>)
[INFO] [stderr]     |                                                   ^^^^^^^^^^^^^ help: use `dyn`: `dyn Buffer + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/plot.rs:97:90
[INFO] [stderr]    |
[INFO] [stderr] 97 |     pub fn new(path: &PathBuf, mut use_direct_io: bool, dummy: bool) -> Result<Plot, Box<Error>> {
[INFO] [stderr]    |                                                                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reader.rs:26:21
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub buffer: Box<Buffer + Send>,
[INFO] [stderr]    |                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn Buffer + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reader.rs:35:36
[INFO] [stderr]    |
[INFO] [stderr] 35 |     rx_empty_buffers: Receiver<Box<Buffer + Send>>,
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^ help: use `dyn`: `dyn Buffer + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reader.rs:36:34
[INFO] [stderr]    |
[INFO] [stderr] 36 |     tx_empty_buffers: Sender<Box<Buffer + Send>>,
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^ help: use `dyn`: `dyn Buffer + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reader.rs:49:40
[INFO] [stderr]    |
[INFO] [stderr] 49 |         rx_empty_buffers: Receiver<Box<Buffer + Send>>,
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^ help: use `dyn`: `dyn Buffer + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reader.rs:50:38
[INFO] [stderr]    |
[INFO] [stderr] 50 |         tx_empty_buffers: Sender<Box<Buffer + Send>>,
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^ help: use `dyn`: `dyn Buffer + Send`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.79s
[INFO] running `"docker" "inspect" "00ad4643645e1653db97753dc95dc880d242dcc37068955e34925b35b0b767a0"`
[INFO] running `"docker" "rm" "-f" "00ad4643645e1653db97753dc95dc880d242dcc37068955e34925b35b0b767a0"`
[INFO] [stdout] 00ad4643645e1653db97753dc95dc880d242dcc37068955e34925b35b0b767a0