[INFO] fetching crate ddshow-sink 0.2.2...
[INFO] testing ddshow-sink-0.2.2 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate ddshow-sink 0.2.2 into /workspace/builds/worker-7-tc1/source
[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-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ddshow-sink 0.2.2 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 52 packages to latest compatible versions
[INFO] [stderr]       Adding bytecheck v0.6.12 (available: v0.8.2)
[INFO] [stderr]       Adding differential-dataflow v0.12.0 (available: v0.18.0)
[INFO] [stderr]       Adding rkyv v0.7.3 (available: v0.7.45)
[INFO] [stderr]       Adding rkyv_derive v0.7.3 (available: v0.7.45)
[INFO] [stderr]       Adding timely v0.12.0 (available: v0.25.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded abomonation v0.7.3
[INFO] [stderr]   Downloaded timely_logging v0.12.1
[INFO] [stderr]   Downloaded timely_communication v0.12.0
[INFO] [stderr]   Downloaded ddshow-types v0.2.2
[INFO] [stderr]   Downloaded getopts v0.2.24
[INFO] [stderr]   Downloaded timely_bytes v0.12.2
[INFO] [stderr]   Downloaded timely v0.12.0
[INFO] [stderr]   Downloaded rend v0.3.6
[INFO] [stderr]   Downloaded rkyv_derive v0.7.3
[INFO] [stderr]   Downloaded abomonation_derive v0.5.0
[INFO] [stderr]   Downloaded differential-dataflow v0.12.0
[INFO] [stderr]   Downloaded rkyv v0.7.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 46fb37e10d219c9f27ea85b0feb90870cd77a3d57f05e59827e79ff044dea7ef
[INFO] running `Command { std: "docker" "start" "-a" "46fb37e10d219c9f27ea85b0feb90870cd77a3d57f05e59827e79ff044dea7ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46fb37e10d219c9f27ea85b0feb90870cd77a3d57f05e59827e79ff044dea7ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46fb37e10d219c9f27ea85b0feb90870cd77a3d57f05e59827e79ff044dea7ef", kill_on_drop: false }`
[INFO] [stdout] 46fb37e10d219c9f27ea85b0feb90870cd77a3d57f05e59827e79ff044dea7ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10f96ed599ff4c35a326e1a6e3eb0650374ee403885fe91780e2bd9c1db6ee19
[INFO] running `Command { std: "docker" "start" "-a" "10f96ed599ff4c35a326e1a6e3eb0650374ee403885fe91780e2bd9c1db6ee19", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling bytecheck v0.6.12
[INFO] [stderr]    Compiling rend v0.3.6
[INFO] [stderr]    Compiling abomonation v0.7.3
[INFO] [stderr]    Compiling getopts v0.2.24
[INFO] [stderr]    Compiling timely_logging v0.12.1
[INFO] [stderr]    Compiling simdutf8 v0.1.5
[INFO] [stderr]    Compiling timely_bytes v0.12.2
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling rkyv v0.7.3
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling ptr_meta_derive v0.1.4
[INFO] [stderr]    Compiling bytecheck_derive v0.6.12
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]    Compiling rkyv_derive v0.7.3
[INFO] [stderr]    Compiling seahash v4.1.0
[INFO] [stderr]    Compiling ptr_meta v0.1.4
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling abomonation_derive v0.5.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling tinyvec v1.10.0
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling futures-util v0.3.31
[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)]` (part of `#[warn(unused)]`) 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.23s
[INFO] running `Command { std: "docker" "inspect" "10f96ed599ff4c35a326e1a6e3eb0650374ee403885fe91780e2bd9c1db6ee19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10f96ed599ff4c35a326e1a6e3eb0650374ee403885fe91780e2bd9c1db6ee19", kill_on_drop: false }`
[INFO] [stdout] 10f96ed599ff4c35a326e1a6e3eb0650374ee403885fe91780e2bd9c1db6ee19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05d1fee8a6b1a3080407fa319e46025a3f2d61dee2223e243c32698f184f8919
[INFO] running `Command { std: "docker" "start" "-a" "05d1fee8a6b1a3080407fa319e46025a3f2d61dee2223e243c32698f184f8919", 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)]` (part of `#[warn(unused)]`) 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: 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)]` (part of `#[warn(unused)]`) 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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "05d1fee8a6b1a3080407fa319e46025a3f2d61dee2223e243c32698f184f8919", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05d1fee8a6b1a3080407fa319e46025a3f2d61dee2223e243c32698f184f8919", kill_on_drop: false }`
[INFO] [stdout] 05d1fee8a6b1a3080407fa319e46025a3f2d61dee2223e243c32698f184f8919
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ce6c73dafe30426ceb83072530060fc978347e563355516d97e12ae062363694
[INFO] running `Command { std: "docker" "start" "-a" "ce6c73dafe30426ceb83072530060fc978347e563355516d97e12ae062363694", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stdout] 
[INFO] [stderr]   --> src/writer.rs:69:28
[INFO] [stdout] running 0 tests
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr] 69 |                 if let Err(err) = self.stream.write_all(&PADDING[..padding]) {
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |                            ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) 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 (run `cargo fix --lib -p ddshow-sink` to apply 3 suggestions)
[INFO] [stderr] warning: `ddshow-sink` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ddshow_sink-d9197fa8ec403e07)
[INFO] [stderr]    Doc-tests ddshow_sink
[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 1.73s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ce6c73dafe30426ceb83072530060fc978347e563355516d97e12ae062363694", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce6c73dafe30426ceb83072530060fc978347e563355516d97e12ae062363694", kill_on_drop: false }`
[INFO] [stdout] ce6c73dafe30426ceb83072530060fc978347e563355516d97e12ae062363694
