[INFO] fetching crate binary-tree 0.2.0...
[INFO] checking binary-tree-0.2.0 against master#43ca9d18e333797f0aa3b525501a7cec8d61a96b for pr-136764
[INFO] extracting crate binary-tree 0.2.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate binary-tree 0.2.0 on toolchain 43ca9d18e333797f0aa3b525501a7cec8d61a96b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+43ca9d18e333797f0aa3b525501a7cec8d61a96b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate binary-tree 0.2.0
[INFO] finished tweaking crates.io crate binary-tree 0.2.0
[INFO] tweaked toml for crates.io crate binary-tree 0.2.0 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" "+43ca9d18e333797f0aa3b525501a7cec8d61a96b" "generate-lockfile" "--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]      Locking 26 packages to latest compatible versions
[INFO] [stderr]       Adding quickcheck v0.2.27 (available: v1.0.3)
[INFO] [stderr]       Adding quickcheck_macros v0.2.29 (available: v1.0.0)
[INFO] [stderr]       Adding rand v0.3.23 (available: v0.9.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+43ca9d18e333797f0aa3b525501a7cec8d61a96b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quickcheck v0.2.27
[INFO] [stderr]   Downloaded quickcheck_macros v0.2.29
[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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+43ca9d18e333797f0aa3b525501a7cec8d61a96b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0e42e980a0ba557c5c43a313772e7fa8a14326c646e5de74be60c005486b0a24
[INFO] running `Command { std: "docker" "start" "-a" "0e42e980a0ba557c5c43a313772e7fa8a14326c646e5de74be60c005486b0a24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e42e980a0ba557c5c43a313772e7fa8a14326c646e5de74be60c005486b0a24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e42e980a0ba557c5c43a313772e7fa8a14326c646e5de74be60c005486b0a24", kill_on_drop: false }`
[INFO] [stdout] 0e42e980a0ba557c5c43a313772e7fa8a14326c646e5de74be60c005486b0a24
[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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+43ca9d18e333797f0aa3b525501a7cec8d61a96b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6967056bdd0e8fff0d28db285978bd62961f28b8b949314b7d6fdfe6e536e303
[INFO] running `Command { std: "docker" "start" "-a" "6967056bdd0e8fff0d28db285978bd62961f28b8b949314b7d6fdfe6e536e303", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]     Checking binary-tree v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/count.rs:696:9
[INFO] [stdout]     |
[INFO] [stdout] 696 |         try!(f.write_str(self.0));
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/count.rs:696:9
[INFO] [stdout]     |
[INFO] [stdout] 696 |         try!(f.write_str(self.0));
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `collect` that must be used
[INFO] [stdout]   --> benches/from_iter.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |         (0..TOTAL).collect::<CountTree<_>>();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let _ = (0..TOTAL).collect::<CountTree<_>>();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `collect` that must be used
[INFO] [stdout]   --> benches/from_iter.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |         (0..TOTAL).collect::<LinkedList<_>>();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 23 |         let _ = (0..TOTAL).collect::<LinkedList<_>>();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `collect` that must be used
[INFO] [stdout]   --> benches/from_iter.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         (0..TOTAL).collect::<Vec<_>>();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let _ = (0..TOTAL).collect::<Vec<_>>();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.43s
[INFO] running `Command { std: "docker" "inspect" "6967056bdd0e8fff0d28db285978bd62961f28b8b949314b7d6fdfe6e536e303", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6967056bdd0e8fff0d28db285978bd62961f28b8b949314b7d6fdfe6e536e303", kill_on_drop: false }`
[INFO] [stdout] 6967056bdd0e8fff0d28db285978bd62961f28b8b949314b7d6fdfe6e536e303