[INFO] crate scavenger 1.7.6 is already in cache
[INFO] extracting crate scavenger 1.7.6 into work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/scavenger/1.7.6
[INFO] extracting crate scavenger 1.7.6 into work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/scavenger/1.7.6
[INFO] validating manifest of scavenger-1.7.6 on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of scavenger-1.7.6 on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing scavenger-1.7.6
[INFO] finished frobbing scavenger-1.7.6
[INFO] frobbed toml for scavenger-1.7.6 written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/scavenger/1.7.6/Cargo.toml
[INFO] started frobbing scavenger-1.7.6
[INFO] finished frobbing scavenger-1.7.6
[INFO] frobbed toml for scavenger-1.7.6 written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/scavenger/1.7.6/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking scavenger-1.7.6 against master#452087b4bf18cece2d52d7cd8c9147195e5404bf for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-5/master#452087b4bf18cece2d52d7cd8c9147195e5404bf:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/scavenger/1.7.6:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b9776eb8854dbe4852bd95cc62d5355d83bfc90948ba1aab13c191f839c4e704
[INFO] running `"docker" "start" "-a" "b9776eb8854dbe4852bd95cc62d5355d83bfc90948ba1aab13c191f839c4e704"`
[INFO] [stderr]     Checking untrusted v0.7.0
[INFO] [stderr]    Compiling ring v0.16.9
[INFO] [stderr]    Compiling scavenger v1.7.6 (/opt/crater/workdir)
[INFO] [stderr]     Checking page_size v0.4.1
[INFO] [stderr]     Checking clap v2.30.0
[INFO] [stderr]     Checking flate2 v1.0.11
[INFO] [stderr]     Checking aligned_alloc v0.1.3
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking serde-value v0.5.3
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking url_serde v0.2.0
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]     Checking tokio-threadpool v0.1.15
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking stopwatch v0.0.7
[INFO] [stderr]     Checking log4rs v0.8.3
[INFO] [stderr]     Checking rayon v1.2.0
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-udp v0.1.5
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking webpki v0.21.0
[INFO] [stderr]     Checking ct-logs v0.6.0
[INFO] [stderr]     Checking hyper v0.12.33
[INFO] [stderr]     Checking rustls v0.16.0
[INFO] [stderr]     Checking webpki-roots v0.17.0
[INFO] [stderr]     Checking tokio-rustls v0.10.0
[INFO] [stderr]     Checking hyper-rustls v0.17.1
[INFO] [stderr]     Checking reqwest v0.9.20
[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 43.99s
[INFO] running `"docker" "inspect" "b9776eb8854dbe4852bd95cc62d5355d83bfc90948ba1aab13c191f839c4e704"`
[INFO] running `"docker" "rm" "-f" "b9776eb8854dbe4852bd95cc62d5355d83bfc90948ba1aab13c191f839c4e704"`
[INFO] [stdout] b9776eb8854dbe4852bd95cc62d5355d83bfc90948ba1aab13c191f839c4e704