[INFO] fetching crate nuclear 0.0.10...
[INFO] checking nuclear-0.0.10 against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] extracting crate nuclear 0.0.10 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate nuclear 0.0.10
[INFO] finished tweaking crates.io crate nuclear 0.0.10
[INFO] tweaked toml for crates.io crate nuclear 0.0.10 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate nuclear 0.0.10 on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate nuclear 0.0.10 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-macros v1.1.0
[INFO] [stderr]   Downloaded tracing-attributes v0.1.15
[INFO] [stderr]   Downloaded pin-project-lite v0.2.6
[INFO] [stderr]   Downloaded futures-io v0.3.15
[INFO] [stderr]   Downloaded futures-executor v0.3.15
[INFO] [stderr]   Downloaded anyhow v1.0.40
[INFO] [stderr]   Downloaded indexmap v1.6.2
[INFO] [stderr]   Downloaded socket2 v0.4.0
[INFO] [stderr]   Downloaded syn v1.0.72
[INFO] [stderr]   Downloaded pin-project v1.0.7
[INFO] [stderr]   Downloaded tokio-util v0.6.6
[INFO] [stderr]   Downloaded hashbrown v0.9.1
[INFO] [stderr]   Downloaded mio v0.7.11
[INFO] [stderr]   Downloaded futures-util v0.3.15
[INFO] [stderr]   Downloaded serde_json v1.0.64
[INFO] [stderr]   Downloaded hyper v0.14.7
[INFO] [stderr]   Downloaded h2 v0.3.3
[INFO] [stderr]   Downloaded libc v0.2.94
[INFO] [stderr]   Downloaded serde v1.0.126
[INFO] [stderr]   Downloaded serde_derive v1.0.126
[INFO] [stderr]   Downloaded tokio v1.6.0
[INFO] [stderr]   Downloaded tracing-core v0.1.18
[INFO] [stderr]   Downloaded async-trait v0.1.50
[INFO] [stderr]   Downloaded once_cell v1.7.2
[INFO] [stderr]   Downloaded redox_syscall v0.2.8
[INFO] [stderr]   Downloaded tracing v0.1.26
[INFO] [stderr]   Downloaded futures v0.3.15
[INFO] [stderr]   Downloaded futures-channel v0.3.15
[INFO] [stderr]   Downloaded futures-core v0.3.15
[INFO] [stderr]   Downloaded http-body v0.4.2
[INFO] [stderr]   Downloaded pin-project-internal v1.0.7
[INFO] [stderr]   Downloaded thiserror-impl v1.0.24
[INFO] [stderr]   Downloaded thiserror v1.0.24
[INFO] [stderr]   Downloaded futures-macro v0.3.15
[INFO] [stderr]   Downloaded futures-task v0.3.15
[INFO] [stderr]   Downloaded futures-sink v0.3.15
[INFO] [stderr]   Downloaded httpdate v1.0.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9dda4186c4dc348603cb846d5a7033e67b5738fdc3314051ccff18b4d898f2d3
[INFO] running `Command { std: "docker" "start" "-a" "9dda4186c4dc348603cb846d5a7033e67b5738fdc3314051ccff18b4d898f2d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9dda4186c4dc348603cb846d5a7033e67b5738fdc3314051ccff18b4d898f2d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9dda4186c4dc348603cb846d5a7033e67b5738fdc3314051ccff18b4d898f2d3", kill_on_drop: false }`
[INFO] [stdout] 9dda4186c4dc348603cb846d5a7033e67b5738fdc3314051ccff18b4d898f2d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a612a5209244fd90b346d0c55d0f875648867f6f481dffd4fa89e467ac37f6f
[INFO] running `Command { std: "docker" "start" "-a" "0a612a5209244fd90b346d0c55d0f875648867f6f481dffd4fa89e467ac37f6f", kill_on_drop: false }`
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]     Checking tokio v1.6.0
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking tokio-util v0.6.6
[INFO] [stderr]     Checking h2 v0.3.3
[INFO] [stderr]     Checking hyper v0.14.7
[INFO] [stderr]     Checking nuclear v0.0.10 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::pin::Pin`
[INFO] [stdout]   --> src/lib.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub use std::pin::Pin;
[INFO] [stdout]    |             ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Context` and `Poll`
[INFO] [stdout]   --> src/lib.rs:25:25
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub use std::task::{Context, Poll};
[INFO] [stdout]    |                         ^^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::pin::Pin`
[INFO] [stdout]   --> src/lib.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub use std::pin::Pin;
[INFO] [stdout]    |             ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Context` and `Poll`
[INFO] [stdout]   --> src/lib.rs:25:25
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub use std::task::{Context, Poll};
[INFO] [stdout]    |                         ^^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.47s
[INFO] running `Command { std: "docker" "inspect" "0a612a5209244fd90b346d0c55d0f875648867f6f481dffd4fa89e467ac37f6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a612a5209244fd90b346d0c55d0f875648867f6f481dffd4fa89e467ac37f6f", kill_on_drop: false }`
[INFO] [stdout] 0a612a5209244fd90b346d0c55d0f875648867f6f481dffd4fa89e467ac37f6f