[INFO] fetching crate succtree 0.5.0...
[INFO] testing succtree-0.5.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2
[INFO] extracting crate succtree 0.5.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate succtree 0.5.0
[INFO] finished tweaking crates.io crate succtree 0.5.0
[INFO] tweaked toml for crates.io crate succtree 0.5.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate succtree 0.5.0 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 78e9ba72b04b846549b23fd32160de2a1b85769fe3d4470fe837fb665016ff63
[INFO] running `Command { std: "docker" "start" "-a" "78e9ba72b04b846549b23fd32160de2a1b85769fe3d4470fe837fb665016ff63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "78e9ba72b04b846549b23fd32160de2a1b85769fe3d4470fe837fb665016ff63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78e9ba72b04b846549b23fd32160de2a1b85769fe3d4470fe837fb665016ff63", kill_on_drop: false }`
[INFO] [stdout] 78e9ba72b04b846549b23fd32160de2a1b85769fe3d4470fe837fb665016ff63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 48b7a1218b889c88fafd0ebac441f0d02fac388dd9a385b7e70755b712346cfc
[INFO] running `Command { std: "docker" "start" "-a" "48b7a1218b889c88fafd0ebac441f0d02fac388dd9a385b7e70755b712346cfc", kill_on_drop: false }`
[INFO] [stderr]    Compiling succtree v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `int_log` has been stable since 1.67.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(int_log)]
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "48b7a1218b889c88fafd0ebac441f0d02fac388dd9a385b7e70755b712346cfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48b7a1218b889c88fafd0ebac441f0d02fac388dd9a385b7e70755b712346cfc", kill_on_drop: false }`
[INFO] [stdout] 48b7a1218b889c88fafd0ebac441f0d02fac388dd9a385b7e70755b712346cfc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05c9c6e943ffcbeaa0bfe22d7d700ae1df283f6ff6e7df41e9a034e135fc8c6c
[INFO] running `Command { std: "docker" "start" "-a" "05c9c6e943ffcbeaa0bfe22d7d700ae1df283f6ff6e7df41e9a034e135fc8c6c", kill_on_drop: false }`
[INFO] [stderr]    Compiling succtree v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `int_log` has been stable since 1.67.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(int_log)]
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `int_log` has been stable since 1.67.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(int_log)]
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "05c9c6e943ffcbeaa0bfe22d7d700ae1df283f6ff6e7df41e9a034e135fc8c6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05c9c6e943ffcbeaa0bfe22d7d700ae1df283f6ff6e7df41e9a034e135fc8c6c", kill_on_drop: false }`
[INFO] [stdout] 05c9c6e943ffcbeaa0bfe22d7d700ae1df283f6ff6e7df41e9a034e135fc8c6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e20f44f9891f804cfb6cbb969a7f55f44a3f785f10387bde17a95ddfadf2ed47
[INFO] running `Command { std: "docker" "start" "-a" "e20f44f9891f804cfb6cbb969a7f55f44a3f785f10387bde17a95ddfadf2ed47", kill_on_drop: false }`
[INFO] [stderr] warning: the feature `int_log` has been stable since 1.67.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(int_log)]
[INFO] [stderr]   |            ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `succtree` (lib) generated 1 warning
[INFO] [stderr] warning: `succtree` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/succtree-f257846bb2c79984)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test tests::test_delete ... ok
[INFO] [stdout] test tests::test_insert ... ok
[INFO] [stdout] test tests::test_greater_sibling_in_block ... ok
[INFO] [stdout] test tests::test_is_empty ... ok
[INFO] [stdout] test tests::test_min ... ok
[INFO] [stdout] test tests::test_move_down ... ok
[INFO] [stdout] test tests::test_move_up ... ok
[INFO] [stdout] test tests::test_new ... ok
[INFO] [stdout] test tests::test_succ ... ok
[INFO] [stdout] test tests::test_even_rquery ... ok
[INFO] [stdout] test tests::test_uneven_rquery ... ok
[INFO] [stdout] test tests::test_rquery ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests succtree
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - SuccTree::new (line 19) ... ok
[INFO] [stdout] test src/lib.rs - SuccTree::rquery (line 101) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e20f44f9891f804cfb6cbb969a7f55f44a3f785f10387bde17a95ddfadf2ed47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e20f44f9891f804cfb6cbb969a7f55f44a3f785f10387bde17a95ddfadf2ed47", kill_on_drop: false }`
[INFO] [stdout] e20f44f9891f804cfb6cbb969a7f55f44a3f785f10387bde17a95ddfadf2ed47