[INFO] fetching crate libsync 0.2.0...
[INFO] checking libsync-0.2.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate libsync 0.2.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate libsync 0.2.0
[INFO] finished tweaking crates.io crate libsync 0.2.0
[INFO] tweaked toml for crates.io crate libsync 0.2.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate libsync 0.2.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate libsync 0.2.0 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d6e8a777897e45edcc98e4f96f04669a44115515b45a23c1cd4b1eb30c773983
[INFO] running `Command { std: "docker" "start" "-a" "d6e8a777897e45edcc98e4f96f04669a44115515b45a23c1cd4b1eb30c773983", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6e8a777897e45edcc98e4f96f04669a44115515b45a23c1cd4b1eb30c773983", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6e8a777897e45edcc98e4f96f04669a44115515b45a23c1cd4b1eb30c773983", kill_on_drop: false }`
[INFO] [stdout] d6e8a777897e45edcc98e4f96f04669a44115515b45a23c1cd4b1eb30c773983
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a8e7dc62c8a1c4912d7f97eb84ebe88736a5592d02bdb3773102450f3b409eda
[INFO] running `Command { std: "docker" "start" "-a" "a8e7dc62c8a1c4912d7f97eb84ebe88736a5592d02bdb3773102450f3b409eda", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling delegate v0.13.3
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking libsync v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Arc`, `AtomicBool`, `AtomicUsize`, `Ordering`, and `Weak`
[INFO] [stdout]  --> src/shared_details.rs:1:39
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fmt::Debug, sync::{atomic::{AtomicBool, AtomicUsize, Ordering}, Arc, Weak}};
[INFO] [stdout]   |                                       ^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^   ^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AtomicBool`, `AtomicUsize`, and `Ordering`
[INFO] [stdout]  --> src/bounded_shared_details.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::sync::atomic::{AtomicBool, AtomicUsize, Ordering};
[INFO] [stdout]   |                         ^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `AtomicBool`, `AtomicUsize`, `Ordering`, and `Weak`
[INFO] [stdout]  --> src/shared_details.rs:1:39
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fmt::Debug, sync::{atomic::{AtomicBool, AtomicUsize, Ordering}, Arc, Weak}};
[INFO] [stdout]   |                                       ^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^   ^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AtomicBool`, `AtomicUsize`, and `Ordering`
[INFO] [stdout]  --> src/bounded_shared_details.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::sync::atomic::{AtomicBool, AtomicUsize, Ordering};
[INFO] [stdout]   |                         ^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.23s
[INFO] running `Command { std: "docker" "inspect" "a8e7dc62c8a1c4912d7f97eb84ebe88736a5592d02bdb3773102450f3b409eda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8e7dc62c8a1c4912d7f97eb84ebe88736a5592d02bdb3773102450f3b409eda", kill_on_drop: false }`
[INFO] [stdout] a8e7dc62c8a1c4912d7f97eb84ebe88736a5592d02bdb3773102450f3b409eda