[INFO] cloning repository https://github.com/PoC-Consortium/scavenger
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PoC-Consortium/scavenger" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPoC-Consortium%2Fscavenger"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPoC-Consortium%2Fscavenger'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] be0869b3ca10a7781244c7e3afe05428d92c1450
[INFO] checking PoC-Consortium/scavenger against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPoC-Consortium%2Fscavenger" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PoC-Consortium/scavenger on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/PoC-Consortium/scavenger
[INFO] finished tweaking git repo https://github.com/PoC-Consortium/scavenger
[INFO] tweaked toml for git repo https://github.com/PoC-Consortium/scavenger written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/PoC-Consortium/scavenger already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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] a6b7e68c8bc8879e114d9eaf45bd40b82aec3daff3ab0d8cec1e02fccce3df77
[INFO] running `"docker" "start" "-a" "a6b7e68c8bc8879e114d9eaf45bd40b82aec3daff3ab0d8cec1e02fccce3df77"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling ring v0.14.6
[INFO] [stderr]    Compiling miniz-sys v0.1.11
[INFO] [stderr]     Checking tokio-sync v0.1.5
[INFO] [stderr]    Compiling scavenger v1.7.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tokio-executor v0.1.7
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking serde_yaml v0.8.9
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking filetime v0.2.5
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]     Checking page_size v0.4.1
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking pbr v1.0.1
[INFO] [stderr]     Checking core_affinity v0.5.9
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking chrono v0.4.6
[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 aligned_alloc v0.1.3
[INFO] [stderr]     Checking clap v2.30.0
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]     Checking error-chain v0.12.1
[INFO] [stderr]     Checking tokio-timer v0.2.10
[INFO] [stderr]     Checking tokio-current-thread v0.1.6
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking tokio-threadpool v0.1.14
[INFO] [stderr]     Checking want v0.0.6
[INFO] [stderr]     Checking publicsuffix v1.5.2
[INFO] [stderr]     Checking flate2 v1.0.7
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking h2 v0.1.18
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking log4rs v0.8.3
[INFO] [stderr]     Checking stopwatch v0.0.7
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-udp v0.1.3
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking tokio v0.1.19
[INFO] [stderr]     Checking cookie_store v0.5.1
[INFO] [stderr]     Checking webpki v0.19.1
[INFO] [stderr]     Checking sct v0.5.0
[INFO] [stderr]     Checking ct-logs v0.5.1
[INFO] [stderr]     Checking rustls v0.15.2
[INFO] [stderr]     Checking webpki-roots v0.16.0
[INFO] [stderr]     Checking hyper v0.12.28
[INFO] [stderr]     Checking tokio-rustls v0.9.2
[INFO] [stderr]     Checking hyper-rustls v0.16.1
[INFO] [stderr]     Checking reqwest v0.9.16
[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: unused imports: `c_void`, `uint64_t`
[INFO] [stderr]    --> src/cpu_worker.rs:233:16
[INFO] [stderr]     |
[INFO] [stderr] 233 |     use libc::{c_void, uint64_t};
[INFO] [stderr]     |                ^^^^^^  ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/miner.rs:356:51
[INFO] [stderr]     |
[INFO] [stderr] 356 |                 .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:27:21
[INFO] [stderr]    |
[INFO] [stderr] 27 |     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:36:36
[INFO] [stderr]    |
[INFO] [stderr] 36 |     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:37:34
[INFO] [stderr]    |
[INFO] [stderr] 37 |     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:50:40
[INFO] [stderr]    |
[INFO] [stderr] 50 |         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:51:38
[INFO] [stderr]    |
[INFO] [stderr] 51 |         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:356:51
[INFO] [stderr]     |
[INFO] [stderr] 356 |                 .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:27:21
[INFO] [stderr]    |
[INFO] [stderr] 27 |     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:36:36
[INFO] [stderr]    |
[INFO] [stderr] 36 |     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:37:34
[INFO] [stderr]    |
[INFO] [stderr] 37 |     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:50:40
[INFO] [stderr]    |
[INFO] [stderr] 50 |         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:51:38
[INFO] [stderr]    |
[INFO] [stderr] 51 |         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 1m 29s
[INFO] running `"docker" "inspect" "a6b7e68c8bc8879e114d9eaf45bd40b82aec3daff3ab0d8cec1e02fccce3df77"`
[INFO] running `"docker" "rm" "-f" "a6b7e68c8bc8879e114d9eaf45bd40b82aec3daff3ab0d8cec1e02fccce3df77"`
[INFO] [stdout] a6b7e68c8bc8879e114d9eaf45bd40b82aec3daff3ab0d8cec1e02fccce3df77