[INFO] fetching crate bk-tree 0.5.0...
[INFO] checking bk-tree-0.5.0 against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] extracting crate bk-tree 0.5.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate bk-tree 0.5.0 on toolchain 80399064afa4a2cd153f30d02c25f7ea0383ed65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bk-tree 0.5.0
[INFO] finished tweaking crates.io crate bk-tree 0.5.0
[INFO] tweaked toml for crates.io crate bk-tree 0.5.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded triple_accel v0.3.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c6bfa7d85c75cbd070447a009af5612ea9e80f64730371e84d62b37c9bbc4195
[INFO] running `Command { std: "docker" "start" "-a" "c6bfa7d85c75cbd070447a009af5612ea9e80f64730371e84d62b37c9bbc4195", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6bfa7d85c75cbd070447a009af5612ea9e80f64730371e84d62b37c9bbc4195", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6bfa7d85c75cbd070447a009af5612ea9e80f64730371e84d62b37c9bbc4195", kill_on_drop: false }`
[INFO] [stdout] c6bfa7d85c75cbd070447a009af5612ea9e80f64730371e84d62b37c9bbc4195
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d80c1b9ede710dc5a26bd6c27749b4ef7dce964d61857659879813f8a42e3708
[INFO] running `Command { std: "docker" "start" "-a" "d80c1b9ede710dc5a26bd6c27749b4ef7dce964d61857659879813f8a42e3708", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition
[INFO] [stderr]     Checking triple_accel v0.3.4
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking bk-tree v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Extend` is imported redundantly
[INFO] [stdout]  --> src/lib.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     iter::Extend,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/prelude/mod.rs:105:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Extend` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Extend` is imported redundantly
[INFO] [stdout]  --> src/lib.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     iter::Extend,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/prelude/mod.rs:105:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Extend` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `Command { std: "docker" "inspect" "d80c1b9ede710dc5a26bd6c27749b4ef7dce964d61857659879813f8a42e3708", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d80c1b9ede710dc5a26bd6c27749b4ef7dce964d61857659879813f8a42e3708", kill_on_drop: false }`
[INFO] [stdout] d80c1b9ede710dc5a26bd6c27749b4ef7dce964d61857659879813f8a42e3708
