[INFO] fetching crate tsyncp 0.4.1...
[INFO] checking tsyncp-0.4.1 against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] extracting crate tsyncp 0.4.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate tsyncp 0.4.1
[INFO] finished tweaking crates.io crate tsyncp 0.4.1
[INFO] tweaked toml for crates.io crate tsyncp 0.4.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tsyncp 0.4.1 on toolchain 0611f7de057c584b8771102fde7aed6c70c71d3b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tsyncp 0.4.1 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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "fetch" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3fd4d6c4774169338fdea52dc99e0983a8016eb1ccfea259b89eeb1b7fa23b47
[INFO] running `Command { std: "docker" "start" "-a" "3fd4d6c4774169338fdea52dc99e0983a8016eb1ccfea259b89eeb1b7fa23b47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3fd4d6c4774169338fdea52dc99e0983a8016eb1ccfea259b89eeb1b7fa23b47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fd4d6c4774169338fdea52dc99e0983a8016eb1ccfea259b89eeb1b7fa23b47", kill_on_drop: false }`
[INFO] [stdout] 3fd4d6c4774169338fdea52dc99e0983a8016eb1ccfea259b89eeb1b7fa23b47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49b15c3ce48cd1b3bde0e6a41f35ac3a3f930d7fd1e3954419cf5b581d8cd76a
[INFO] running `Command { std: "docker" "start" "-a" "49b15c3ce48cd1b3bde0e6a41f35ac3a3f930d7fd1e3954419cf5b581d8cd76a", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.203
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking thread_local v1.1.8
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking bytes v1.6.0
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]    Compiling either v1.12.0
[INFO] [stderr]     Checking regex-syntax v0.8.4
[INFO] [stderr]    Compiling cc v1.0.99
[INFO] [stderr]    Compiling syn v2.0.67
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking socket2 v0.5.7
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]    Compiling serde_json v1.0.117
[INFO] [stderr]     Checking miniz_oxide v0.7.4
[INFO] [stderr]    Compiling itertools v0.12.1
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking owo-colors v3.5.0
[INFO] [stderr]     Checking anstyle v1.0.7
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking eyre v0.6.12
[INFO] [stderr]     Checking deunicode v1.6.0
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking anstream v0.6.14
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]    Compiling backtrace v0.3.71
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]     Checking tracing-error v0.2.0
[INFO] [stderr]     Checking color-spantrace v0.2.1
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]     Checking regex v1.10.5
[INFO] [stderr]     Checking color-eyre v0.6.3
[INFO] [stderr]     Checking env_filter v0.1.0
[INFO] [stderr]    Compiling darling_core v0.20.9
[INFO] [stderr]     Checking env_logger v0.11.3
[INFO] [stderr]    Compiling serde_derive v1.0.203
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling tokio-macros v2.3.0
[INFO] [stderr]    Compiling tosserror-derive v0.1.2
[INFO] [stderr]    Compiling prost-derive v0.12.6
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.61
[INFO] [stderr]     Checking tokio v1.38.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking tosserror v0.1.2
[INFO] [stderr]     Checking thiserror v1.0.61
[INFO] [stderr]     Checking pin-project v1.1.5
[INFO] [stderr]     Checking prost v0.12.6
[INFO] [stderr]    Compiling darling_macro v0.20.9
[INFO] [stderr]    Compiling darling v0.20.9
[INFO] [stderr]    Compiling dummy v0.7.0
[INFO] [stderr]     Checking fake v2.9.2
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking tokio-util v0.7.11
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking tsyncp v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `len` is never read
[INFO] [stdout]    --> src/util/stream_pool.rs:544:17
[INFO] [stdout]     |
[INFO] [stdout] 544 |                 len -= 1;
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `len` is never read
[INFO] [stdout]    --> src/util/stream_pool.rs:544:17
[INFO] [stdout]     |
[INFO] [stdout] 544 |                 len -= 1;
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `BarrierError` is never constructed
[INFO] [stdout]    --> src/barrier/mod.rs:581:12
[INFO] [stdout]     |
[INFO] [stdout] 581 | pub struct BarrierError {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]     = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `WaiterError` is never constructed
[INFO] [stdout]    --> src/barrier/mod.rs:589:12
[INFO] [stdout]     |
[INFO] [stdout] 589 | pub struct WaiterError {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `BarrierError` is never constructed
[INFO] [stdout]    --> src/barrier/mod.rs:581:12
[INFO] [stdout]     |
[INFO] [stdout] 581 | pub struct BarrierError {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]     = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `WaiterError` is never constructed
[INFO] [stdout]    --> src/barrier/mod.rs:589:12
[INFO] [stdout]     |
[INFO] [stdout] 589 | pub struct WaiterError {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tsyncp` (lib) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `tsyncp` (lib test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "49b15c3ce48cd1b3bde0e6a41f35ac3a3f930d7fd1e3954419cf5b581d8cd76a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49b15c3ce48cd1b3bde0e6a41f35ac3a3f930d7fd1e3954419cf5b581d8cd76a", kill_on_drop: false }`
[INFO] [stdout] 49b15c3ce48cd1b3bde0e6a41f35ac3a3f930d7fd1e3954419cf5b581d8cd76a
