[INFO] fetching crate tokio-hglib 0.4.0...
[INFO] testing tokio-hglib-0.4.0 against try#2440211fe03bc45c89b6dc1a3df18382ce91e32b for pr-146098-1
[INFO] extracting crate tokio-hglib 0.4.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate tokio-hglib 0.4.0
[INFO] finished tweaking crates.io crate tokio-hglib 0.4.0
[INFO] tweaked toml for crates.io crate tokio-hglib 0.4.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tokio-hglib 0.4.0 on toolchain 2440211fe03bc45c89b6dc1a3df18382ce91e32b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tokio-hglib 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6181c33aa214384e8753aa06fab2217b38dc48cc2a31fb85427c60e206e5f2c7
[INFO] running `Command { std: "docker" "start" "-a" "6181c33aa214384e8753aa06fab2217b38dc48cc2a31fb85427c60e206e5f2c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6181c33aa214384e8753aa06fab2217b38dc48cc2a31fb85427c60e206e5f2c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6181c33aa214384e8753aa06fab2217b38dc48cc2a31fb85427c60e206e5f2c7", kill_on_drop: false }`
[INFO] [stdout] 6181c33aa214384e8753aa06fab2217b38dc48cc2a31fb85427c60e206e5f2c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec86468ed3739ef000cc183470a75688a4fcb7cbfd4edd89027a14edc12ed8df
[INFO] running `Command { std: "docker" "start" "-a" "ec86468ed3739ef000cc183470a75688a4fcb7cbfd4edd89027a14edc12ed8df", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.56
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling futures-core v0.3.8
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling futures-sink v0.3.8
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling pin-project-lite v0.2.0
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling tokio v1.0.1
[INFO] [stderr]    Compiling futures-io v0.3.8
[INFO] [stderr]    Compiling bytes v1.0.0
[INFO] [stderr]    Compiling futures-task v0.3.8
[INFO] [stderr]    Compiling futures-channel v0.3.8
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling signal-hook-registry v1.3.0
[INFO] [stderr]    Compiling mio v0.7.6
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling async-stream-impl v0.3.0
[INFO] [stderr]    Compiling tokio-macros v1.0.0
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]    Compiling async-stream v0.3.0
[INFO] [stderr]    Compiling pin-project v1.0.2
[INFO] [stderr]    Compiling futures-util v0.3.8
[INFO] [stderr]    Compiling tokio-stream v0.1.0
[INFO] [stderr]    Compiling futures-executor v0.3.8
[INFO] [stderr]    Compiling tokio-util v0.6.0
[INFO] [stderr]    Compiling futures v0.3.8
[INFO] [stderr]    Compiling tokio-hglib v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `child` is never read
[INFO] [stdout]   --> src/connection.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct PipeConnection {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 24 |     child: Child,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PipeConnection` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.43s
[INFO] running `Command { std: "docker" "inspect" "ec86468ed3739ef000cc183470a75688a4fcb7cbfd4edd89027a14edc12ed8df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec86468ed3739ef000cc183470a75688a4fcb7cbfd4edd89027a14edc12ed8df", kill_on_drop: false }`
[INFO] [stdout] ec86468ed3739ef000cc183470a75688a4fcb7cbfd4edd89027a14edc12ed8df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 86f770fbad6bd789a449001e69303eb878bbcff35c1f81dacdf91822f98824ac
[INFO] running `Command { std: "docker" "start" "-a" "86f770fbad6bd789a449001e69303eb878bbcff35c1f81dacdf91822f98824ac", kill_on_drop: false }`
[INFO] [stdout] warning: field `child` is never read
[INFO] [stdout]   --> src/connection.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct PipeConnection {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 24 |     child: Child,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PipeConnection` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tokio-hglib v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `child` is never read
[INFO] [stdout]   --> src/connection.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct PipeConnection {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 24 |     child: Child,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PipeConnection` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `Command { std: "docker" "inspect" "86f770fbad6bd789a449001e69303eb878bbcff35c1f81dacdf91822f98824ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86f770fbad6bd789a449001e69303eb878bbcff35c1f81dacdf91822f98824ac", kill_on_drop: false }`
[INFO] [stdout] 86f770fbad6bd789a449001e69303eb878bbcff35c1f81dacdf91822f98824ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f0f7f9e7f7438ad49ca04e970b1f9ec840f17515279abb27f14e4ef7ab065d45
[INFO] running `Command { std: "docker" "start" "-a" "f0f7f9e7f7438ad49ca04e970b1f9ec840f17515279abb27f14e4ef7ab065d45", kill_on_drop: false }`
[INFO] [stderr] warning: field `child` is never read
[INFO] [stderr]   --> src/connection.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub struct PipeConnection {
[INFO] [stderr]    |            -------------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 24 |     child: Child,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `PipeConnection` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `tokio-hglib` (lib) generated 1 warning
[INFO] [stderr] warning: `tokio-hglib` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tokio_hglib-faec918862f93d1e)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test message::tests::parse_hello_unsupported ... ok
[INFO] [stdout] test message::tests::parse_hello_malformed ... ok
[INFO] [stdout] test message::tests::parse_hello_empty ... ok
[INFO] [stdout] test message::tests::pack_args_some ... ok
[INFO] [stdout] test message::tests::parse_hello_some ... ok
[INFO] [stdout] test message::tests::pack_args_nul ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/block_encoding.rs (/opt/rustwide/target/debug/deps/block_encoding-7cddd366104f1027)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test encode_message ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/channel_decoding.rs (/opt/rustwide/target/debug/deps/channel_decoding-126b786180f67f50)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test channel_decode_immature ... ok
[INFO] [stdout] test channel_decode_valid_message ... ok
[INFO] [stdout] test channel_decode_unsupported ... ok
[INFO] [stderr]    Doc-tests tokio_hglib
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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" "f0f7f9e7f7438ad49ca04e970b1f9ec840f17515279abb27f14e4ef7ab065d45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0f7f9e7f7438ad49ca04e970b1f9ec840f17515279abb27f14e4ef7ab065d45", kill_on_drop: false }`
[INFO] [stdout] f0f7f9e7f7438ad49ca04e970b1f9ec840f17515279abb27f14e4ef7ab065d45