[INFO] fetching crate ddshow-sink 0.2.2...
[INFO] testing ddshow-sink-0.2.2 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate ddshow-sink 0.2.2 into /workspace/builds/worker-2-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-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ddshow-sink 0.2.2 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 51 packages to latest compatible versions
[INFO] [stderr]       Adding bytecheck v0.6.12 (available: v0.8.1)
[INFO] [stderr]       Adding differential-dataflow v0.12.0 (available: v0.15.3)
[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: v0.21.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded timely_bytes v0.12.2
[INFO] [stderr]   Downloaded ddshow-types v0.2.2
[INFO] [stderr]   Downloaded timely_logging v0.12.1
[INFO] [stderr]   Downloaded rkyv_derive v0.7.3
[INFO] [stderr]   Downloaded timely_communication v0.12.0
[INFO] [stderr]   Downloaded rkyv v0.7.3
[INFO] [stderr]   Downloaded timely v0.12.0
[INFO] [stderr]   Downloaded differential-dataflow v0.12.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ebc2857dbaeb8073a333f790f71d57e0a1ea57e9b46b744a9479f5a86548cb39
[INFO] running `Command { std: "docker" "start" "-a" "ebc2857dbaeb8073a333f790f71d57e0a1ea57e9b46b744a9479f5a86548cb39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ebc2857dbaeb8073a333f790f71d57e0a1ea57e9b46b744a9479f5a86548cb39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebc2857dbaeb8073a333f790f71d57e0a1ea57e9b46b744a9479f5a86548cb39", kill_on_drop: false }`
[INFO] [stdout] ebc2857dbaeb8073a333f790f71d57e0a1ea57e9b46b744a9479f5a86548cb39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] c64184f136c2c466dfb8f649855f53993f16bee7c8852b30b031a5bb126dcd34
[INFO] running `Command { std: "docker" "start" "-a" "c64184f136c2c466dfb8f649855f53993f16bee7c8852b30b031a5bb126dcd34", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling cfg-if v1.0.1
[INFO] [stderr]    Compiling unicode-width v0.2.1
[INFO] [stderr]    Compiling bytecheck v0.6.12
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling rend v0.3.6
[INFO] [stderr]    Compiling abomonation v0.7.3
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling simdutf8 v0.1.5
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling pin-project-lite v0.2.16
[INFO] [stderr]    Compiling timely_bytes v0.12.2
[INFO] [stderr]    Compiling timely_logging v0.12.1
[INFO] [stderr]    Compiling slab v0.4.10
[INFO] [stderr]    Compiling rkyv v0.7.3
[INFO] [stderr]    Compiling seahash v4.1.0
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling getopts v0.2.23
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling tinyvec v1.9.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling ptr_meta_derive v0.1.4
[INFO] [stderr]    Compiling bytecheck_derive v0.6.12
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 25.86s
[INFO] running `Command { std: "docker" "inspect" "c64184f136c2c466dfb8f649855f53993f16bee7c8852b30b031a5bb126dcd34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c64184f136c2c466dfb8f649855f53993f16bee7c8852b30b031a5bb126dcd34", kill_on_drop: false }`
[INFO] [stdout] c64184f136c2c466dfb8f649855f53993f16bee7c8852b30b031a5bb126dcd34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] fb8220d2e06b216a0bccc0ca044801068ea891b919546d9113133f300de667cd
[INFO] running `Command { std: "docker" "start" "-a" "fb8220d2e06b216a0bccc0ca044801068ea891b919546d9113133f300de667cd", kill_on_drop: false }`
[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] [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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "fb8220d2e06b216a0bccc0ca044801068ea891b919546d9113133f300de667cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb8220d2e06b216a0bccc0ca044801068ea891b919546d9113133f300de667cd", kill_on_drop: false }`
[INFO] [stdout] fb8220d2e06b216a0bccc0ca044801068ea891b919546d9113133f300de667cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] aaa5dd82fcec812ca3880062a15c346e29c6110e086bb222efc29e4614885798
[INFO] running `Command { std: "docker" "start" "-a" "aaa5dd82fcec812ca3880062a15c346e29c6110e086bb222efc29e4614885798", 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` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/ddshow_sink-45e5f21c1264f2b1)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[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] running `Command { std: "docker" "inspect" "aaa5dd82fcec812ca3880062a15c346e29c6110e086bb222efc29e4614885798", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aaa5dd82fcec812ca3880062a15c346e29c6110e086bb222efc29e4614885798", kill_on_drop: false }`
[INFO] [stdout] aaa5dd82fcec812ca3880062a15c346e29c6110e086bb222efc29e4614885798