[INFO] fetching crate privsep 0.0.2...
[INFO] checking privsep-0.0.2 against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] extracting crate privsep 0.0.2 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate privsep 0.0.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate privsep 0.0.2
[INFO] tweaked toml for crates.io crate privsep 0.0.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate privsep 0.0.2 on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate privsep 0.0.2 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 254ba57eff2fe1037637ea7b599d14bf1c125f82acadce3ce607b409be958f56
[INFO] running `Command { std: "docker" "start" "-a" "254ba57eff2fe1037637ea7b599d14bf1c125f82acadce3ce607b409be958f56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "254ba57eff2fe1037637ea7b599d14bf1c125f82acadce3ce607b409be958f56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "254ba57eff2fe1037637ea7b599d14bf1c125f82acadce3ce607b409be958f56", kill_on_drop: false }`
[INFO] [stdout] 254ba57eff2fe1037637ea7b599d14bf1c125f82acadce3ce607b409be958f56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 441dbbc0875e17c7b5a5d21406406b3563ed66a43210f0eb5fb3cab389762473
[INFO] running `Command { std: "docker" "start" "-a" "441dbbc0875e17c7b5a5d21406406b3563ed66a43210f0eb5fb3cab389762473", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling slog v2.7.0
[INFO] [stderr]    Compiling tokio v1.11.0
[INFO] [stderr]     Checking arc-swap v1.4.0
[INFO] [stderr]     Checking arrayvec v0.7.1
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling derive_more v0.99.16
[INFO] [stderr]    Compiling privsep-derive v0.0.1
[INFO] [stderr]    Compiling zerocopy-derive v0.3.0
[INFO] [stderr]     Checking slog-scope v4.4.0
[INFO] [stderr]     Checking slog-stdlog v4.1.0
[INFO] [stderr]     Checking zerocopy v0.6.0
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking nix v0.22.1
[INFO] [stderr]     Checking close_fds v0.3.2
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking privsep-log v0.0.1
[INFO] [stderr]     Checking privsep v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `children` is never read
[INFO] [stdout]    --> src/process.rs:128:9
[INFO] [stdout]     |
[INFO] [stdout] 128 |     pub children: Peers<N>,
[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 `peers` is never read
[INFO] [stdout]    --> src/process.rs:265:9
[INFO] [stdout]     |
[INFO] [stdout] 265 |     pub peers: Peers<N>,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused output of future returned by `tokio::task::yield_now` that must be used
[INFO] [stdout]   --> src/net/stream.rs:49:21
[INFO] [stdout]    |
[INFO] [stdout] 49 |                     yield_now().await;
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: yield_now does nothing unless polled/`await`-ed
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 49 |                     let _ = yield_now().await;
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused output of future returned by `tokio::task::yield_now` that must be used
[INFO] [stdout]   --> src/net/stream.rs:68:21
[INFO] [stdout]    |
[INFO] [stdout] 68 |                     yield_now().await;
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: yield_now does nothing unless polled/`await`-ed
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 68 |                     let _ = yield_now().await;
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `children` is never read
[INFO] [stdout]    --> src/process.rs:128:9
[INFO] [stdout]     |
[INFO] [stdout] 128 |     pub children: Peers<N>,
[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 `peers` is never read
[INFO] [stdout]    --> src/process.rs:265:9
[INFO] [stdout]     |
[INFO] [stdout] 265 |     pub peers: Peers<N>,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused output of future returned by `tokio::task::yield_now` that must be used
[INFO] [stdout]   --> src/net/stream.rs:49:21
[INFO] [stdout]    |
[INFO] [stdout] 49 |                     yield_now().await;
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: yield_now does nothing unless polled/`await`-ed
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 49 |                     let _ = yield_now().await;
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused output of future returned by `tokio::task::yield_now` that must be used
[INFO] [stdout]   --> src/net/stream.rs:68:21
[INFO] [stdout]    |
[INFO] [stdout] 68 |                     yield_now().await;
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: yield_now does nothing unless polled/`await`-ed
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 68 |                     let _ = yield_now().await;
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.09s
[INFO] running `Command { std: "docker" "inspect" "441dbbc0875e17c7b5a5d21406406b3563ed66a43210f0eb5fb3cab389762473", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "441dbbc0875e17c7b5a5d21406406b3563ed66a43210f0eb5fb3cab389762473", kill_on_drop: false }`
[INFO] [stdout] 441dbbc0875e17c7b5a5d21406406b3563ed66a43210f0eb5fb3cab389762473