[INFO] fetching crate scavenger 1.7.6...
[INFO] testing scavenger-1.7.6 against 1.47.0 for beta-1.48-1
[INFO] extracting crate scavenger 1.7.6 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate scavenger 1.7.6 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "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-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3ac39caf308f7a98f55bec69296cb2cb71aba3b2b94f3afc8f4be9ab88988a5c
[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" "3ac39caf308f7a98f55bec69296cb2cb71aba3b2b94f3afc8f4be9ab88988a5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ac39caf308f7a98f55bec69296cb2cb71aba3b2b94f3afc8f4be9ab88988a5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ac39caf308f7a98f55bec69296cb2cb71aba3b2b94f3afc8f4be9ab88988a5c", kill_on_drop: false }`
[INFO] [stdout] 3ac39caf308f7a98f55bec69296cb2cb71aba3b2b94f3afc8f4be9ab88988a5c
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ef33c4510a2aa6403b18f686acf251d21e5f8c4a225701de7df8fc4fe897b0b
[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" "7ef33c4510a2aa6403b18f686acf251d21e5f8c4a225701de7df8fc4fe897b0b", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling once_cell v1.4.1
[INFO] [stderr]    Compiling regex-syntax v0.6.20
[INFO] [stderr]    Compiling ansi_term v0.10.2
[INFO] [stderr]    Compiling arc-swap v0.3.11
[INFO] [stderr]    Compiling log-mdc v0.1.0
[INFO] [stderr]    Compiling antidote v1.0.0
[INFO] [stderr]    Compiling hex v0.3.2
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]    Compiling scavenger v1.7.6 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling textwrap v0.9.0
[INFO] [stderr]    Compiling thread-id v3.3.0
[INFO] [stderr]    Compiling page_size v0.4.2
[INFO] [stderr]    Compiling filetime v0.2.12
[INFO] [stderr]    Compiling hostname v0.1.5
[INFO] [stderr]    Compiling core_affinity v0.5.10
[INFO] [stderr]    Compiling ordered-float v1.1.0
[INFO] [stderr]    Compiling aligned_alloc v0.1.3
[INFO] [stderr]    Compiling pbr v1.0.3
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling clap v2.30.0
[INFO] [stderr]    Compiling stopwatch v0.0.7
[INFO] [stderr]    Compiling regex v1.4.1
[INFO] [stderr]    Compiling publicsuffix v1.5.4
[INFO] [stderr]    Compiling webpki v0.21.3
[INFO] [stderr]    Compiling sct v0.6.0
[INFO] [stderr]    Compiling ct-logs v0.6.0
[INFO] [stderr]    Compiling webpki-roots v0.17.0
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling serde_urlencoded v0.5.5
[INFO] [stderr]    Compiling serde_yaml v0.8.13
[INFO] [stderr]    Compiling serde-value v0.5.3
[INFO] [stderr]    Compiling url_serde v0.2.0
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling tokio-threadpool v0.1.18
[INFO] [stderr]    Compiling want v0.2.0
[INFO] [stderr]    Compiling rustls v0.16.0
[INFO] [stderr]    Compiling tokio-codec v0.1.2
[INFO] [stderr]    Compiling h2 v0.1.26
[INFO] [stderr]    Compiling tokio-reactor v0.1.12
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling tokio-fs v0.1.7
[INFO] [stderr]    Compiling cookie_store v0.7.0
[INFO] [stderr]    Compiling log4rs v0.8.3
[INFO] [stderr]    Compiling tokio-uds v0.2.7
[INFO] [stderr]    Compiling tokio-tcp v0.1.4
[INFO] [stderr]    Compiling tokio-udp v0.1.6
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling tokio-rustls v0.10.3
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]    Compiling hyper-rustls v0.17.1
[INFO] [stderr]    Compiling reqwest v0.9.24
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 54s
[INFO] running `Command { std: "docker" "inspect" "7ef33c4510a2aa6403b18f686acf251d21e5f8c4a225701de7df8fc4fe897b0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ef33c4510a2aa6403b18f686acf251d21e5f8c4a225701de7df8fc4fe897b0b", kill_on_drop: false }`
[INFO] [stdout] 7ef33c4510a2aa6403b18f686acf251d21e5f8c4a225701de7df8fc4fe897b0b
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 231fe7270e6121834d1477f19413926f39ae5138106a7f39143d3ec871779a7c
[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" "231fe7270e6121834d1477f19413926f39ae5138106a7f39143d3ec871779a7c", kill_on_drop: false }`
[INFO] [stderr]    Compiling scavenger v1.7.6 (/opt/rustwide/workdir)
[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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 9.70s
[INFO] running `Command { std: "docker" "inspect" "231fe7270e6121834d1477f19413926f39ae5138106a7f39143d3ec871779a7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "231fe7270e6121834d1477f19413926f39ae5138106a7f39143d3ec871779a7c", kill_on_drop: false }`
[INFO] [stdout] 231fe7270e6121834d1477f19413926f39ae5138106a7f39143d3ec871779a7c
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c3cfd6d99c35840ca7145bab0063d8bdfa0fda3eab2a2626e9cbaf14b818879e
[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" "c3cfd6d99c35840ca7145bab0063d8bdfa0fda3eab2a2626e9cbaf14b818879e", kill_on_drop: false }`
[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: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/scavenger-dea23e6ee5ecb197
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test logger::tests::test_to_log_level ... ok
[INFO] [stdout] test utils::test::test_get_sector_size ... ok
[INFO] [stdout] test shabal256::test::shabal256 ... ok
[INFO] [stdout] test utils::test::test_get_device_id ... ok
[INFO] [stdout] test config::tests::test_load_cfg ... ok
[INFO] [stdout] test cpu_worker::tests::test_deadline_hashing ... ok
[INFO] [stdout] test logger::tests::test_init_logger ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- logger::tests::test_init_logger stdout ----
[INFO] [stdout] thread 'logger::tests::test_init_logger' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', src/logger.rs:65:14
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x56091047f240 - std::backtrace_rs::backtrace::libunwind::trace::h577ea05e9ca4629a
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stdout]    1:     0x56091047f240 - std::backtrace_rs::backtrace::trace_unsynchronized::h50b9b72b84c7dd56
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x56091047f240 - std::sys_common::backtrace::_print_fmt::h6541cf9823837fac
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:79
[INFO] [stdout]    3:     0x56091047f240 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hf64fbff071026df5
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:58
[INFO] [stdout]    4:     0x5609104a54ac - core::fmt::write::h9ddafa4860d8adff
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/fmt/mod.rs:1082
[INFO] [stdout]    5:     0x56091029aed5 - std::io::Write::write_fmt::h50a71e2460ce07da
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/io/mod.rs:1514
[INFO] [stdout]    6:     0x560910478b81 - std::io::impls::<impl std::io::Write for alloc::boxed::Box<W>>::write_fmt::h9bbd3fed8160d0d2
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/io/impls.rs:176
[INFO] [stdout]    7:     0x5609104816c0 - std::sys_common::backtrace::_print::ha25f9ff5080d886d
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:61
[INFO] [stdout]    8:     0x5609104816c0 - std::sys_common::backtrace::print::h213e8aa8dc5405c0
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:48
[INFO] [stdout]    9:     0x5609104816c0 - std::panicking::default_hook::{{closure}}::h6482fae49ef9d963
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:200
[INFO] [stdout]   10:     0x5609104813b6 - std::panicking::default_hook::he30ad7589e0970f9
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:216
[INFO] [stdout]   11:     0x560910481d23 - std::panicking::rust_panic_with_hook::haa1ed36ada4ffb03
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:569
[INFO] [stdout]   12:     0x5609104818f9 - std::panicking::begin_panic_handler::{{closure}}::h7001af1bb21aeaeb
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:476
[INFO] [stdout]   13:     0x56091047f6cc - std::sys_common::backtrace::__rust_end_short_backtrace::h39910f557f5f2367
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:153
[INFO] [stdout]   14:     0x5609104818b9 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:475
[INFO] [stdout]   15:     0x5609104a3d61 - core::panicking::panic_fmt::h4e2659771ebc78eb
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/panicking.rs:85
[INFO] [stdout]   16:     0x5609104a3b83 - core::option::expect_none_failed::h448b58a024c2c33a
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/option.rs:1221
[INFO] [stdout]   17:     0x560910292a27 - core::result::Result<T,E>::unwrap::h92e1b1431f4fd702
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/result.rs:973
[INFO] [stdout]   18:     0x560910244a0f - scavenger::logger::init_logger::h14481fcfe7d727fb
[INFO] [stdout]                                at /opt/rustwide/workdir/src/logger.rs:62
[INFO] [stdout]   19:     0x5609102426f1 - scavenger::logger::tests::test_init_logger::h206fb80a38af7ec7
[INFO] [stdout]                                at /opt/rustwide/workdir/src/logger.rs:132
[INFO] [stdout]   20:     0x5609102422ba - scavenger::logger::tests::test_init_logger::{{closure}}::hdc0b4cadc176f322
[INFO] [stdout]                                at /opt/rustwide/workdir/src/logger.rs:125
[INFO] [stdout]   21:     0x560910242b1e - core::ops::function::FnOnce::call_once::hb0985d6f548cc9c4
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/ops/function.rs:227
[INFO] [stdout]   22:     0x5609102c37b3 - core::ops::function::FnOnce::call_once::hd04d57b5cf16f85a
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/ops/function.rs:227
[INFO] [stdout]   23:     0x5609102c37b3 - test::__rust_begin_short_backtrace::hd8e9a8c5a2e43388
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/test/src/lib.rs:517
[INFO] [stdout]   24:     0x5609102c1c83 - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h3c3db8a500c1a19a
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   25:     0x5609102c1c83 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h043e9ebcbe360c80
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:308
[INFO] [stdout]   26:     0x5609102c1c83 - std::panicking::try::do_call::h47c2fb275506c2e8
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:373
[INFO] [stdout]   27:     0x5609102c1c83 - std::panicking::try::h569c20f0e99453b4
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:337
[INFO] [stdout]   28:     0x5609102c1c83 - std::panic::catch_unwind::hb33c6d0f01540d23
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:379
[INFO] [stdout]   29:     0x5609102c1c83 - test::run_test_in_process::hc0ce562d167e51cf
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/test/src/lib.rs:544
[INFO] [stdout]   30:     0x5609102c1c83 - test::run_test::run_test_inner::{{closure}}::hd3120982fcd71544
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/test/src/lib.rs:450
[INFO] [stdout]   31:     0x56091029a306 - std::sys_common::backtrace::__rust_begin_short_backtrace::h84f8bc12cc4cdac6
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:137
[INFO] [stdout]   32:     0x56091029f535 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::hb8b5fa0ba425d4db
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/thread/mod.rs:458
[INFO] [stdout]   33:     0x56091029f535 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc4b84b244cf55f75
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:308
[INFO] [stdout]   34:     0x56091029f535 - std::panicking::try::do_call::ha31922ad8fa17753
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:373
[INFO] [stdout]   35:     0x56091029f535 - std::panicking::try::h38a6da203722ae6e
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:337
[INFO] [stdout]   36:     0x56091029f535 - std::panic::catch_unwind::h83afce167c9062b9
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:379
[INFO] [stdout]   37:     0x56091029f535 - std::thread::Builder::spawn_unchecked::{{closure}}::h160689155590a70c
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/thread/mod.rs:457
[INFO] [stdout]   38:     0x56091029f535 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h7dbf17a455132a46
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/ops/function.rs:227
[INFO] [stdout]   39:     0x5609104893ca - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h670c50864ac2cb92
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   40:     0x5609104893ca - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h2511952749086d81
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   41:     0x5609104893ca - std::sys::unix::thread::Thread::new::thread_start::h5ad4ddffe24373a8
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys/unix/thread.rs:87
[INFO] [stdout]   42:     0x7f91ae00b609 - start_thread
[INFO] [stdout]   43:     0x7f91adf17103 - clone
[INFO] [stdout]   44:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     logger::tests::test_init_logger
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 6 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--bin scavenger'
[INFO] running `Command { std: "docker" "inspect" "c3cfd6d99c35840ca7145bab0063d8bdfa0fda3eab2a2626e9cbaf14b818879e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3cfd6d99c35840ca7145bab0063d8bdfa0fda3eab2a2626e9cbaf14b818879e", kill_on_drop: false }`
[INFO] [stdout] c3cfd6d99c35840ca7145bab0063d8bdfa0fda3eab2a2626e9cbaf14b818879e
