[INFO] fetching crate nstack 0.11.0-rc.0...
[INFO] testing nstack-0.11.0-rc.0 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate nstack 0.11.0-rc.0 into /workspace/builds/worker-55/source
[INFO] validating manifest of crates.io crate nstack 0.11.0-rc.0 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-55/source/rust-toolchain
[INFO] started tweaking crates.io crate nstack 0.11.0-rc.0
[INFO] finished tweaking crates.io crate nstack 0.11.0-rc.0
[INFO] tweaked toml for crates.io crate nstack 0.11.0-rc.0 written to /workspace/builds/worker-55/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4fcc91226b32170556d2b22c8c3335b2acf25c14c8191e7043f9633926fe34e1
[INFO] running `Command { std: "docker" "start" "-a" "4fcc91226b32170556d2b22c8c3335b2acf25c14c8191e7043f9633926fe34e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4fcc91226b32170556d2b22c8c3335b2acf25c14c8191e7043f9633926fe34e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fcc91226b32170556d2b22c8c3335b2acf25c14c8191e7043f9633926fe34e1", kill_on_drop: false }`
[INFO] [stdout] 4fcc91226b32170556d2b22c8c3335b2acf25c14c8191e7043f9633926fe34e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2718f5972144b36b839e162468e537354bdf8612d7431166b81bac78490850a
[INFO] running `Command { std: "docker" "start" "-a" "f2718f5972144b36b839e162468e537354bdf8612d7431166b81bac78490850a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling bytecheck v0.6.6
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling rend v0.3.4
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling smallvec v1.7.0
[INFO] [stderr]    Compiling rkyv v0.7.24
[INFO] [stderr]    Compiling seahash v4.1.0
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling owning_ref v0.4.1
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling ptr_meta_derive v0.1.4
[INFO] [stderr]    Compiling bytecheck_derive v0.6.5
[INFO] [stderr]    Compiling rkyv_derive v0.7.24
[INFO] [stderr]    Compiling ptr_meta v0.1.4
[INFO] [stderr]    Compiling microkelvin v0.11.0-rc.0
[INFO] [stderr]    Compiling nstack v0.11.0-rc.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.23s
[INFO] running `Command { std: "docker" "inspect" "f2718f5972144b36b839e162468e537354bdf8612d7431166b81bac78490850a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2718f5972144b36b839e162468e537354bdf8612d7431166b81bac78490850a", kill_on_drop: false }`
[INFO] [stdout] f2718f5972144b36b839e162468e537354bdf8612d7431166b81bac78490850a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a096c29cbcbef0109179df9c724ad9f350c30cd725ef0b8c9573698d566fb486
[INFO] running `Command { std: "docker" "start" "-a" "a096c29cbcbef0109179df9c724ad9f350c30cd725ef0b8c9573698d566fb486", kill_on_drop: false }`
[INFO] [stderr]    Compiling nstack v0.11.0-rc.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.94s
[INFO] running `Command { std: "docker" "inspect" "a096c29cbcbef0109179df9c724ad9f350c30cd725ef0b8c9573698d566fb486", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a096c29cbcbef0109179df9c724ad9f350c30cd725ef0b8c9573698d566fb486", kill_on_drop: false }`
[INFO] [stdout] a096c29cbcbef0109179df9c724ad9f350c30cd725ef0b8c9573698d566fb486
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 89ee144aa8d78c44ecd94fe47b67f937e6c8b9341d0843f92069444c39481b60
[INFO] running `Command { std: "docker" "start" "-a" "89ee144aa8d78c44ecd94fe47b67f937e6c8b9341d0843f92069444c39481b60", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/nstack-2dd3c403156425f9)
[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]      Running tests/nstack.rs (/opt/rustwide/target/debug/deps/nstack-b383fc635e7c419d)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test double ... ok
[INFO] [stdout] test branch_lengths ... ok
[INFO] [stdout] test trivial ... ok
[INFO] [stdout] test multiple ... ok
[INFO] [stdout] test push_pop ... ok
[INFO] [stdout] test nth ... ok
[INFO] [stdout] test persist ... ok
[INFO] [stdout] test nth_mut ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests nstack
[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" "89ee144aa8d78c44ecd94fe47b67f937e6c8b9341d0843f92069444c39481b60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89ee144aa8d78c44ecd94fe47b67f937e6c8b9341d0843f92069444c39481b60", kill_on_drop: false }`
[INFO] [stdout] 89ee144aa8d78c44ecd94fe47b67f937e6c8b9341d0843f92069444c39481b60