[INFO] fetching crate id_tree 1.7.0...
[INFO] checking id_tree-1.7.0 against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] extracting crate id_tree 1.7.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate id_tree 1.7.0 on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate id_tree 1.7.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate id_tree 1.7.0
[INFO] tweaked toml for crates.io crate id_tree 1.7.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate id_tree 1.7.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 695517e36f5de94da3905871a9fb3bf4071cf92cbda09b6f7fe1d6bcc90f92b3
[INFO] running `Command { std: "docker" "start" "-a" "695517e36f5de94da3905871a9fb3bf4071cf92cbda09b6f7fe1d6bcc90f92b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "695517e36f5de94da3905871a9fb3bf4071cf92cbda09b6f7fe1d6bcc90f92b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "695517e36f5de94da3905871a9fb3bf4071cf92cbda09b6f7fe1d6bcc90f92b3", kill_on_drop: false }`
[INFO] [stdout] 695517e36f5de94da3905871a9fb3bf4071cf92cbda09b6f7fe1d6bcc90f92b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3394450001db7e6832dd4bf7be82ef48835bf71d7105d8c684bc259933851db2
[INFO] running `Command { std: "docker" "start" "-a" "3394450001db7e6832dd4bf7be82ef48835bf71d7105d8c684bc259933851db2", kill_on_drop: false }`
[INFO] [stderr]     Checking snowflake v1.3.0
[INFO] [stderr]     Checking id_tree v1.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/tree.rs:426:13
[INFO] [stdout]     |
[INFO] [stdout] 426 |             try!(self.remove_node_drop_children(child));
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/tree.rs:550:13
[INFO] [stdout]     |
[INFO] [stdout] 550 |             try!(self.move_node_to_parent(&old_root, node_id));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/tree.rs:426:13
[INFO] [stdout]     |
[INFO] [stdout] 426 |             try!(self.remove_node_drop_children(child));
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/tree.rs:550:13
[INFO] [stdout]     |
[INFO] [stdout] 550 |             try!(self.move_node_to_parent(&old_root, node_id));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.46s
[INFO] running `Command { std: "docker" "inspect" "3394450001db7e6832dd4bf7be82ef48835bf71d7105d8c684bc259933851db2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3394450001db7e6832dd4bf7be82ef48835bf71d7105d8c684bc259933851db2", kill_on_drop: false }`
[INFO] [stdout] 3394450001db7e6832dd4bf7be82ef48835bf71d7105d8c684bc259933851db2