[INFO] fetching crate skew-forest 0.1.0...
[INFO] testing skew-forest-0.1.0 against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739-1
[INFO] extracting crate skew-forest 0.1.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate skew-forest 0.1.0
[INFO] finished tweaking crates.io crate skew-forest 0.1.0
[INFO] tweaked toml for crates.io crate skew-forest 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate skew-forest 0.1.0 on toolchain ec6f9a5b4413f74386267ef8efc93712c2ce6db6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "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" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 3 packages to latest compatible versions
[INFO] [stderr]       Adding arrayvec v0.5.2 (available: v0.7.6)
[INFO] [stderr]       Adding fixedbitset v0.2.0 (available: v0.5.7)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fixedbitset v0.2.0
[INFO] [stderr]   Downloaded arrayvec v0.5.2
[INFO] [stderr]   Downloaded debug-tag v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8a5d6dd1a10a1a91c62c0b742a6f177ea4e3abfe81de9e5d890f8fd1de731f7d
[INFO] running `Command { std: "docker" "start" "-a" "8a5d6dd1a10a1a91c62c0b742a6f177ea4e3abfe81de9e5d890f8fd1de731f7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8a5d6dd1a10a1a91c62c0b742a6f177ea4e3abfe81de9e5d890f8fd1de731f7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a5d6dd1a10a1a91c62c0b742a6f177ea4e3abfe81de9e5d890f8fd1de731f7d", kill_on_drop: false }`
[INFO] [stdout] 8a5d6dd1a10a1a91c62c0b742a6f177ea4e3abfe81de9e5d890f8fd1de731f7d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d71da65aa7169e0d0b437851615075c827c7457ec066e82bbb125992848e2aea
[INFO] running `Command { std: "docker" "start" "-a" "d71da65aa7169e0d0b437851615075c827c7457ec066e82bbb125992848e2aea", kill_on_drop: false }`
[INFO] [stderr]    Compiling debug-tag v0.1.0
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling skew-forest v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/forest.rs:493:15
[INFO] [stdout]     |
[INFO] [stdout] 493 |     pub fn gc(&mut self) -> Gc<Idx> {
[INFO] [stdout]     |               ^^^^^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |               |
[INFO] [stdout]     |               the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 493 |     pub fn gc(&mut self) -> Gc<'_, Idx> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "d71da65aa7169e0d0b437851615075c827c7457ec066e82bbb125992848e2aea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d71da65aa7169e0d0b437851615075c827c7457ec066e82bbb125992848e2aea", kill_on_drop: false }`
[INFO] [stdout] d71da65aa7169e0d0b437851615075c827c7457ec066e82bbb125992848e2aea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 14361d9cc8d13f8d762e566d0e713b1468d9d13697967fcc295572ed0c71a2bb
[INFO] running `Command { std: "docker" "start" "-a" "14361d9cc8d13f8d762e566d0e713b1468d9d13697967fcc295572ed0c71a2bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling skew-forest v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/forest.rs:493:15
[INFO] [stdout]     |
[INFO] [stdout] 493 |     pub fn gc(&mut self) -> Gc<Idx> {
[INFO] [stdout]     |               ^^^^^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |               |
[INFO] [stdout]     |               the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 493 |     pub fn gc(&mut self) -> Gc<'_, Idx> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/forest.rs:493:15
[INFO] [stdout]     |
[INFO] [stdout] 493 |     pub fn gc(&mut self) -> Gc<Idx> {
[INFO] [stdout]     |               ^^^^^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |               |
[INFO] [stdout]     |               the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 493 |     pub fn gc(&mut self) -> Gc<'_, Idx> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "14361d9cc8d13f8d762e566d0e713b1468d9d13697967fcc295572ed0c71a2bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14361d9cc8d13f8d762e566d0e713b1468d9d13697967fcc295572ed0c71a2bb", kill_on_drop: false }`
[INFO] [stdout] 14361d9cc8d13f8d762e566d0e713b1468d9d13697967fcc295572ed0c71a2bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ad39ca41cf2fa999884235f8219b2a4c5bbc6f133268c76c33c9d76c2df02d6a
[INFO] running `Command { std: "docker" "start" "-a" "ad39ca41cf2fa999884235f8219b2a4c5bbc6f133268c76c33c9d76c2df02d6a", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/forest.rs:493:15
[INFO] [stderr]     |
[INFO] [stderr] 493 |     pub fn gc(&mut self) -> Gc<Idx> {
[INFO] [stderr]     |               ^^^^^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |               |
[INFO] [stderr]     |               the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 493 |     pub fn gc(&mut self) -> Gc<'_, Idx> {
[INFO] [stderr]     |                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: `skew-forest` (lib) generated 1 warning (run `cargo fix --lib -p skew-forest` to apply 1 suggestion)
[INFO] [stderr] warning: `skew-forest` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/skew_forest-cd754c4614f28253)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test forest::test::get ... ok
[INFO] [stdout] test forest::test::gc ... ok
[INFO] [stdout] test forest::test::iter ... ok
[INFO] [stdout] test forest::test::truncate ... ok
[INFO] [stdout] test forest::test::iter_rev ... ok
[INFO] [stdout] test forest::test::ancestors ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stderr]    Doc-tests skew_forest
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/map.rs - map::SkewMap<T>::synchronize (line 57) ... ok
[INFO] [stdout] test src/lib.rs - (line 45) ... ok
[INFO] [stdout] test src/map.rs - map::SkewMap (line 14) ... ok
[INFO] [stdout] test src/forest.rs - forest::Gc (line 591) ... ok
[INFO] [stdout] test src/forest.rs - forest::SkewForest (line 72) ... ok
[INFO] [stdout] test src/forest.rs - forest::SkewForest<Idx>::ancestors (line 419) ... ok
[INFO] [stdout] test src/forest.rs - forest::SkewForest<Idx>::truncate (line 310) ... ok
[INFO] [stdout] test src/map.rs - map::SkewMap<T>::push (line 98) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.83s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ad39ca41cf2fa999884235f8219b2a4c5bbc6f133268c76c33c9d76c2df02d6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad39ca41cf2fa999884235f8219b2a4c5bbc6f133268c76c33c9d76c2df02d6a", kill_on_drop: false }`
[INFO] [stdout] ad39ca41cf2fa999884235f8219b2a4c5bbc6f133268c76c33c9d76c2df02d6a
