[INFO] fetching crate nstack 0.11.0-rc.0...
[INFO] testing nstack-0.11.0-rc.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate nstack 0.11.0-rc.0 into /workspace/builds/worker-113/source
[INFO] validating manifest of crates.io crate nstack 0.11.0-rc.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-113/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-113/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 53ca3b21218d597ea9160fb7993d2b1afe423ec30f94974bc7068507e6687320
[INFO] running `Command { std: "docker" "start" "-a" "53ca3b21218d597ea9160fb7993d2b1afe423ec30f94974bc7068507e6687320", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "53ca3b21218d597ea9160fb7993d2b1afe423ec30f94974bc7068507e6687320", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53ca3b21218d597ea9160fb7993d2b1afe423ec30f94974bc7068507e6687320", kill_on_drop: false }`
[INFO] [stdout] 53ca3b21218d597ea9160fb7993d2b1afe423ec30f94974bc7068507e6687320
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 492d7dba35ae9ec927a9eae74d30261127aed9c144ecbe8d6ff94b6b07164d7c
[INFO] running `Command { std: "docker" "start" "-a" "492d7dba35ae9ec927a9eae74d30261127aed9c144ecbe8d6ff94b6b07164d7c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling bytecheck v0.6.5
[INFO] [stderr]    Compiling ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling rend v0.3.3
[INFO] [stderr]    Compiling rkyv v0.7.22
[INFO] [stderr]    Compiling smallvec v1.7.0
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling seahash v4.1.0
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling owning_ref v0.4.1
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[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 quote v1.0.10
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling ptr_meta_derive v0.1.4
[INFO] [stderr]    Compiling bytecheck_derive v0.6.5
[INFO] [stderr]    Compiling rkyv_derive v0.7.22
[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 19.72s
[INFO] running `Command { std: "docker" "inspect" "492d7dba35ae9ec927a9eae74d30261127aed9c144ecbe8d6ff94b6b07164d7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "492d7dba35ae9ec927a9eae74d30261127aed9c144ecbe8d6ff94b6b07164d7c", kill_on_drop: false }`
[INFO] [stdout] 492d7dba35ae9ec927a9eae74d30261127aed9c144ecbe8d6ff94b6b07164d7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff8f0002766640db735b504187893cdbca2d39695755a3a92b84c4a1ba83add7
[INFO] running `Command { std: "docker" "start" "-a" "ff8f0002766640db735b504187893cdbca2d39695755a3a92b84c4a1ba83add7", 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 1.84s
[INFO] running `Command { std: "docker" "inspect" "ff8f0002766640db735b504187893cdbca2d39695755a3a92b84c4a1ba83add7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff8f0002766640db735b504187893cdbca2d39695755a3a92b84c4a1ba83add7", kill_on_drop: false }`
[INFO] [stdout] ff8f0002766640db735b504187893cdbca2d39695755a3a92b84c4a1ba83add7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ab4a0d1c9f254715347102c9e8814c2c81f8132ba757cd73e15f839c8a244d08
[INFO] running `Command { std: "docker" "start" "-a" "ab4a0d1c9f254715347102c9e8814c2c81f8132ba757cd73e15f839c8a244d08", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/nstack-f5fac51bd661570c)
[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-d161cfc184c482ce)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test branch_lengths ... ok
[INFO] [stdout] test double ... ok
[INFO] [stdout] test multiple ... ok
[INFO] [stdout] test push_pop ... ok
[INFO] [stdout] test trivial ... ok
[INFO] [stdout] test nth ... ok
[INFO] [stdout] test nth_mut ... ok
[INFO] [stdout] test persist ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[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" "ab4a0d1c9f254715347102c9e8814c2c81f8132ba757cd73e15f839c8a244d08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab4a0d1c9f254715347102c9e8814c2c81f8132ba757cd73e15f839c8a244d08", kill_on_drop: false }`
[INFO] [stdout] ab4a0d1c9f254715347102c9e8814c2c81f8132ba757cd73e15f839c8a244d08