[INFO] fetching crate ddshow-sink 0.2.2...
[INFO] testing ddshow-sink-0.2.2 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate ddshow-sink 0.2.2 into /workspace/builds/worker-16/source
[INFO] validating manifest of crates.io crate ddshow-sink 0.2.2 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ddshow-sink 0.2.2
[INFO] finished tweaking crates.io crate ddshow-sink 0.2.2
[INFO] tweaked toml for crates.io crate ddshow-sink 0.2.2 written to /workspace/builds/worker-16/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--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 ddshow-types v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd01a9052306c94fbb35b69b9382cbb3c394062320ac7695debed05afcb790cd
[INFO] running `Command { std: "docker" "start" "-a" "fd01a9052306c94fbb35b69b9382cbb3c394062320ac7695debed05afcb790cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd01a9052306c94fbb35b69b9382cbb3c394062320ac7695debed05afcb790cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd01a9052306c94fbb35b69b9382cbb3c394062320ac7695debed05afcb790cd", kill_on_drop: false }`
[INFO] [stdout] fd01a9052306c94fbb35b69b9382cbb3c394062320ac7695debed05afcb790cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3fcf2fa4e8e7a4bd81812979061c757ba6107411932893784aa34df14e577ca9
[INFO] running `Command { std: "docker" "start" "-a" "3fcf2fa4e8e7a4bd81812979061c757ba6107411932893784aa34df14e577ca9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling bytecheck v0.6.7
[INFO] [stderr]    Compiling timely_logging v0.12.0
[INFO] [stderr]    Compiling abomonation v0.7.3
[INFO] [stderr]    Compiling timely_bytes v0.12.0
[INFO] [stderr]    Compiling once_cell v1.9.0
[INFO] [stderr]    Compiling rend v0.3.6
[INFO] [stderr]    Compiling rkyv v0.7.3
[INFO] [stderr]    Compiling seahash v4.1.0
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]    Compiling tinyvec v1.5.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.2
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling ptr_meta_derive v0.1.4
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling bytecheck_derive v0.6.7
[INFO] [stderr]    Compiling abomonation_derive v0.5.0
[INFO] [stderr]    Compiling rkyv_derive v0.7.3
[INFO] [stderr]    Compiling ptr_meta v0.1.4
[INFO] [stderr]    Compiling timely_communication v0.12.0
[INFO] [stderr]    Compiling timely v0.12.0
[INFO] [stderr]    Compiling differential-dataflow v0.12.0
[INFO] [stderr]    Compiling ddshow-types v0.2.2
[INFO] [stderr]    Compiling ddshow-sink v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]   --> src/writer.rs:69:28
[INFO] [stdout]    |
[INFO] [stdout] 69 |                 if let Err(err) = self.stream.write_all(&PADDING[..padding]) {
[INFO] [stdout]    |                            ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]   --> src/writer.rs:94:20
[INFO] [stdout]    |
[INFO] [stdout] 94 |         if let Err(err) = serializer.serialize_value(&event) {
[INFO] [stdout]    |                    ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/writer.rs:116:20
[INFO] [stdout]     |
[INFO] [stdout] 116 |         if let Err(err) = result {
[INFO] [stdout]     |                    ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.33s
[INFO] running `Command { std: "docker" "inspect" "3fcf2fa4e8e7a4bd81812979061c757ba6107411932893784aa34df14e577ca9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fcf2fa4e8e7a4bd81812979061c757ba6107411932893784aa34df14e577ca9", kill_on_drop: false }`
[INFO] [stdout] 3fcf2fa4e8e7a4bd81812979061c757ba6107411932893784aa34df14e577ca9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 00c3a6c0c691e3d59610e381dccc1605ff18ff49d6e1811f1e264fc2bc45f962
[INFO] running `Command { std: "docker" "start" "-a" "00c3a6c0c691e3d59610e381dccc1605ff18ff49d6e1811f1e264fc2bc45f962", kill_on_drop: false }`
[INFO] [stderr]    Compiling ddshow-sink v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]   --> src/writer.rs:69:28
[INFO] [stdout]    |
[INFO] [stdout] 69 |                 if let Err(err) = self.stream.write_all(&PADDING[..padding]) {
[INFO] [stdout]    |                            ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]   --> src/writer.rs:94:20
[INFO] [stdout]    |
[INFO] [stdout] 94 |         if let Err(err) = serializer.serialize_value(&event) {
[INFO] [stdout]    |                    ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/writer.rs:116:20
[INFO] [stdout]     |
[INFO] [stdout] 116 |         if let Err(err) = result {
[INFO] [stdout]     |                    ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]   --> src/writer.rs:69:28
[INFO] [stdout]    |
[INFO] [stdout] 69 |                 if let Err(err) = self.stream.write_all(&PADDING[..padding]) {
[INFO] [stdout]    |                            ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]   --> src/writer.rs:94:20
[INFO] [stdout]    |
[INFO] [stdout] 94 |         if let Err(err) = serializer.serialize_value(&event) {
[INFO] [stdout]    |                    ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/writer.rs:116:20
[INFO] [stdout]     |
[INFO] [stdout] 116 |         if let Err(err) = result {
[INFO] [stdout]     |                    ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "00c3a6c0c691e3d59610e381dccc1605ff18ff49d6e1811f1e264fc2bc45f962", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00c3a6c0c691e3d59610e381dccc1605ff18ff49d6e1811f1e264fc2bc45f962", kill_on_drop: false }`
[INFO] [stdout] 00c3a6c0c691e3d59610e381dccc1605ff18ff49d6e1811f1e264fc2bc45f962
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a93a1d2a32d60c7547008878a3f7947cf25f2631e2a4fe19be62ef06fc037562
[INFO] running `Command { std: "docker" "start" "-a" "a93a1d2a32d60c7547008878a3f7947cf25f2631e2a4fe19be62ef06fc037562", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]   --> src/writer.rs:69:28
[INFO] [stderr]    |
[INFO] [stderr] 69 |                 if let Err(err) = self.stream.write_all(&PADDING[..padding]) {
[INFO] [stderr]    |                            ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]   --> src/writer.rs:94:20
[INFO] [stderr]    |
[INFO] [stderr] 94 |         if let Err(err) = serializer.serialize_value(&event) {
[INFO] [stderr]    |                    ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]    --> src/writer.rs:116:20
[INFO] [stderr]     |
[INFO] [stderr] 116 |         if let Err(err) = result {
[INFO] [stderr]     |                    ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stderr] 
[INFO] [stderr] warning: `ddshow-sink` (lib) generated 3 warnings
[INFO] [stderr] warning: `ddshow-sink` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ddshow_sink-dd4fa6d89ea1f0e3)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests ddshow-sink
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - enable_timely_logging (line 58) ... ok
[INFO] [stdout] test src/lib.rs - enable_differential_logging (line 143) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.79s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a93a1d2a32d60c7547008878a3f7947cf25f2631e2a4fe19be62ef06fc037562", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a93a1d2a32d60c7547008878a3f7947cf25f2631e2a4fe19be62ef06fc037562", kill_on_drop: false }`
[INFO] [stdout] a93a1d2a32d60c7547008878a3f7947cf25f2631e2a4fe19be62ef06fc037562