[INFO] fetching crate unmp-link 0.7.0...
[INFO] testing unmp-link-0.7.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2
[INFO] extracting crate unmp-link 0.7.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate unmp-link 0.7.0
[INFO] finished tweaking crates.io crate unmp-link 0.7.0
[INFO] tweaked toml for crates.io crate unmp-link 0.7.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate unmp-link 0.7.0 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] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 7 packages to latest compatible versions
[INFO] [stderr]       Adding fixed-queue v0.3.11 (available: v0.5.1)
[INFO] [stderr]       Adding futures-intrusive v0.4.2 (available: v0.5.0)
[INFO] [stderr]       Adding spin v0.9.8 (available: v0.10.0)
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 2e09116d51865098f5d94af210d56b715482e11dc11a5e4e5b76da0a60e56d9d
[INFO] running `Command { std: "docker" "start" "-a" "2e09116d51865098f5d94af210d56b715482e11dc11a5e4e5b76da0a60e56d9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e09116d51865098f5d94af210d56b715482e11dc11a5e4e5b76da0a60e56d9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e09116d51865098f5d94af210d56b715482e11dc11a5e4e5b76da0a60e56d9d", kill_on_drop: false }`
[INFO] [stdout] 2e09116d51865098f5d94af210d56b715482e11dc11a5e4e5b76da0a60e56d9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] a7c78613b17b99acebc0136d43d005ac261a9dd2a2f66ce69ac8353e8c1bd701
[INFO] running `Command { std: "docker" "start" "-a" "a7c78613b17b99acebc0136d43d005ac261a9dd2a2f66ce69ac8353e8c1bd701", kill_on_drop: false }`
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling futures-core v0.3.32
[INFO] [stderr]    Compiling cfg-if v1.0.4
[INFO] [stderr]    Compiling fixed-queue v0.3.11
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stderr]    Compiling futures-intrusive v0.4.2
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling unmp-link v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `const_btree_new` has been partially stabilized since 1.66.0 and is succeeded by the feature `const_btree_len`
[INFO] [stdout]  --> src/lib.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(const_btree_new)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] help: if you are using features which are still unstable, change to using `const_btree_len`
[INFO] [stdout]   |
[INFO] [stdout] 6 - #![feature(const_btree_new)]
[INFO] [stdout] 6 + #![feature(const_btree_len)]
[INFO] [stdout]   |
[INFO] [stdout] help: if you are using features which are now stable, remove this line
[INFO] [stdout]   |
[INFO] [stdout] 6 - #![feature(const_btree_new)]
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `Command { std: "docker" "inspect" "a7c78613b17b99acebc0136d43d005ac261a9dd2a2f66ce69ac8353e8c1bd701", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7c78613b17b99acebc0136d43d005ac261a9dd2a2f66ce69ac8353e8c1bd701", kill_on_drop: false }`
[INFO] [stdout] a7c78613b17b99acebc0136d43d005ac261a9dd2a2f66ce69ac8353e8c1bd701
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 4d5b0639716220802fd9ce616cad5f1143591c8df188d64de9750b198eb599d7
[INFO] running `Command { std: "docker" "start" "-a" "4d5b0639716220802fd9ce616cad5f1143591c8df188d64de9750b198eb599d7", kill_on_drop: false }`
[INFO] [stdout] warning: the feature `const_btree_new` has been partially stabilized since 1.66.0 and is succeeded by the feature `const_btree_len`
[INFO] [stdout]  --> src/lib.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(const_btree_new)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] help: if you are using features which are still unstable, change to using `const_btree_len`
[INFO] [stdout]   |
[INFO] [stdout] 6 - #![feature(const_btree_new)]
[INFO] [stdout] 6 + #![feature(const_btree_len)]
[INFO] [stdout]   |
[INFO] [stdout] help: if you are using features which are now stable, remove this line
[INFO] [stdout]   |
[INFO] [stdout] 6 - #![feature(const_btree_new)]
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling unmp-link v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `const_btree_new` has been partially stabilized since 1.66.0 and is succeeded by the feature `const_btree_len`
[INFO] [stdout]  --> src/lib.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(const_btree_new)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] help: if you are using features which are still unstable, change to using `const_btree_len`
[INFO] [stdout]   |
[INFO] [stdout] 6 - #![feature(const_btree_new)]
[INFO] [stdout] 6 + #![feature(const_btree_len)]
[INFO] [stdout]   |
[INFO] [stdout] help: if you are using features which are now stable, remove this line
[INFO] [stdout]   |
[INFO] [stdout] 6 - #![feature(const_btree_new)]
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "4d5b0639716220802fd9ce616cad5f1143591c8df188d64de9750b198eb599d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d5b0639716220802fd9ce616cad5f1143591c8df188d64de9750b198eb599d7", kill_on_drop: false }`
[INFO] [stdout] 4d5b0639716220802fd9ce616cad5f1143591c8df188d64de9750b198eb599d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] e66e5b761dccb96266daa0d53eddc1418a8a7d46018bb873347577c98b96bfbb
[INFO] running `Command { std: "docker" "start" "-a" "e66e5b761dccb96266daa0d53eddc1418a8a7d46018bb873347577c98b96bfbb", kill_on_drop: false }`
[INFO] [stderr] warning: the feature `const_btree_new` has been partially stabilized since 1.66.0 and is succeeded by the feature `const_btree_len`
[INFO] [stderr]  --> src/lib.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | #![feature(const_btree_new)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] help: if you are using features which are still unstable, change to using `const_btree_len`
[INFO] [stderr]   |
[INFO] [stderr] 6 - #![feature(const_btree_new)]
[INFO] [stderr] 6 + #![feature(const_btree_len)]
[INFO] [stderr]   |
[INFO] [stderr] help: if you are using features which are now stable, remove this line
[INFO] [stderr]   |
[INFO] [stderr] 6 - #![feature(const_btree_new)]
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] warning: `unmp-link` (lib) generated 1 warning
[INFO] [stderr] warning: `unmp-link` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/unmp_link-d911ebfb48ffd95d)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests unmp_link
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e66e5b761dccb96266daa0d53eddc1418a8a7d46018bb873347577c98b96bfbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e66e5b761dccb96266daa0d53eddc1418a8a7d46018bb873347577c98b96bfbb", kill_on_drop: false }`
[INFO] [stdout] e66e5b761dccb96266daa0d53eddc1418a8a7d46018bb873347577c98b96bfbb