[INFO] fetching crate ddshow-sink 0.1.1...
[INFO] checking ddshow-sink-0.1.1 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate ddshow-sink 0.1.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate ddshow-sink 0.1.1 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ddshow-sink 0.1.1
[INFO] finished tweaking crates.io crate ddshow-sink 0.1.1
[INFO] tweaked toml for crates.io crate ddshow-sink 0.1.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ptr_meta_derive v0.1.4
[INFO] [stderr]   Downloaded ddshow-types v0.1.1
[INFO] [stderr]   Downloaded bytecheck v0.5.2
[INFO] [stderr]   Downloaded simdutf8 v0.1.3
[INFO] [stderr]   Downloaded ptr_meta v0.1.4
[INFO] [stderr]   Downloaded bytecheck_derive v0.5.2
[INFO] [stderr]   Downloaded differential-dataflow v0.12.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d4706ee4b47b26a1d6506ffbbf191b946d0ff9c836e6708e58c5071224f440f
[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" "0d4706ee4b47b26a1d6506ffbbf191b946d0ff9c836e6708e58c5071224f440f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d4706ee4b47b26a1d6506ffbbf191b946d0ff9c836e6708e58c5071224f440f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d4706ee4b47b26a1d6506ffbbf191b946d0ff9c836e6708e58c5071224f440f", kill_on_drop: false }`
[INFO] [stdout] 0d4706ee4b47b26a1d6506ffbbf191b946d0ff9c836e6708e58c5071224f440f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93146faa34b23bafc6ec32585f9ef8b16a544804b7022e7b9316618fe96fd021
[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" "93146faa34b23bafc6ec32585f9ef8b16a544804b7022e7b9316618fe96fd021", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking abomonation v0.7.3
[INFO] [stderr]    Compiling bytecheck v0.5.2
[INFO] [stderr]     Checking simdutf8 v0.1.3
[INFO] [stderr]    Compiling rkyv v0.6.7
[INFO] [stderr]     Checking seahash v4.1.0
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking crossbeam-utils v0.8.5
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling ptr_meta_derive v0.1.4
[INFO] [stderr]    Compiling abomonation_derive v0.5.0
[INFO] [stderr]    Compiling bytecheck_derive v0.5.2
[INFO] [stderr]    Compiling rkyv_derive v0.6.7
[INFO] [stderr]     Checking ptr_meta v0.1.4
[INFO] [stderr]     Checking timely_communication v0.12.0
[INFO] [stderr]     Checking timely v0.12.0
[INFO] [stderr]     Checking differential-dataflow v0.12.0
[INFO] [stderr]     Checking ddshow-types v0.1.1
[INFO] [stderr]     Checking ddshow-sink v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]   --> src/writer.rs:52:28
[INFO] [stdout]    |
[INFO] [stdout] 52 |                 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:82:20
[INFO] [stdout]    |
[INFO] [stdout] 82 |         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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]   --> src/writer.rs:52:28
[INFO] [stdout]    |
[INFO] [stdout] 52 |                 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:82:20
[INFO] [stdout]    |
[INFO] [stdout] 82 |         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 [unoptimized + debuginfo] target(s) in 39.23s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "93146faa34b23bafc6ec32585f9ef8b16a544804b7022e7b9316618fe96fd021", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93146faa34b23bafc6ec32585f9ef8b16a544804b7022e7b9316618fe96fd021", kill_on_drop: false }`
[INFO] [stdout] 93146faa34b23bafc6ec32585f9ef8b16a544804b7022e7b9316618fe96fd021