[INFO] fetching crate nstack 0.11.0-rc.0...
[INFO] checking nstack-0.11.0-rc.0 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate nstack 0.11.0-rc.0 into /workspace/builds/worker-33/source
[INFO] validating manifest of crates.io crate nstack 0.11.0-rc.0 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-33/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-33/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "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" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ptr_meta v0.1.4
[INFO] [stderr]   Downloaded seahash v4.1.0
[INFO] [stderr]   Downloaded bytecheck_derive v0.6.5
[INFO] [stderr]   Downloaded bytecheck v0.6.6
[INFO] [stderr]   Downloaded rend v0.3.4
[INFO] [stderr]   Downloaded rkyv_derive v0.7.24
[INFO] [stderr]   Downloaded ptr_meta_derive v0.1.4
[INFO] [stderr]   Downloaded rkyv v0.7.24
[INFO] [stderr]   Downloaded microkelvin v0.11.0-rc.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 199ed6fc99a3a637347a8bcb888f1b5cf161fd05cbcb932186fdcca30d7bbbb6
[INFO] running `Command { std: "docker" "start" "-a" "199ed6fc99a3a637347a8bcb888f1b5cf161fd05cbcb932186fdcca30d7bbbb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "199ed6fc99a3a637347a8bcb888f1b5cf161fd05cbcb932186fdcca30d7bbbb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "199ed6fc99a3a637347a8bcb888f1b5cf161fd05cbcb932186fdcca30d7bbbb6", kill_on_drop: false }`
[INFO] [stdout] 199ed6fc99a3a637347a8bcb888f1b5cf161fd05cbcb932186fdcca30d7bbbb6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc3b39522621354d5908f519df7acb1be62f9420d912fa4158ae26b02193af47
[INFO] running `Command { std: "docker" "start" "-a" "cc3b39522621354d5908f519df7acb1be62f9420d912fa4158ae26b02193af47", 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 unicode-xid v0.2.2
[INFO] [stderr]    Compiling bytecheck v0.6.6
[INFO] [stderr]     Checking ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling rend v0.3.4
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling rkyv v0.7.24
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking seahash v4.1.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]     Checking 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]     Checking ptr_meta v0.1.4
[INFO] [stderr]     Checking microkelvin v0.11.0-rc.0
[INFO] [stderr]     Checking nstack v0.11.0-rc.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.26s
[INFO] running `Command { std: "docker" "inspect" "cc3b39522621354d5908f519df7acb1be62f9420d912fa4158ae26b02193af47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc3b39522621354d5908f519df7acb1be62f9420d912fa4158ae26b02193af47", kill_on_drop: false }`
[INFO] [stdout] cc3b39522621354d5908f519df7acb1be62f9420d912fa4158ae26b02193af47