[INFO] fetching crate py-sr25519-bindings 0.1.2...
[INFO] checking py-sr25519-bindings-0.1.2 against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-4
[INFO] extracting crate py-sr25519-bindings 0.1.2 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate py-sr25519-bindings 0.1.2 on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4-tc1/source/.cargo/config
[INFO] started tweaking crates.io crate py-sr25519-bindings 0.1.2
[INFO] finished tweaking crates.io crate py-sr25519-bindings 0.1.2
[INFO] tweaked toml for crates.io crate py-sr25519-bindings 0.1.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 75 packages
[INFO] [stderr]       Adding arrayvec v0.5.2 (latest: v0.7.4)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding block-buffer v0.7.3 (latest: v0.10.4)
[INFO] [stderr]       Adding block-padding v0.1.5 (latest: v0.3.3)
[INFO] [stderr]       Adding cfg-if v0.1.10 (latest: v1.0.0)
[INFO] [stderr]       Adding cloudabi v0.0.3 (latest: v0.1.0)
[INFO] [stderr]       Adding ctor v0.1.26 (latest: v0.2.7)
[INFO] [stderr]       Adding curve25519-dalek v2.1.3 (latest: v4.1.2)
[INFO] [stderr]       Adding digest v0.8.1 (latest: v0.10.7)
[INFO] [stderr]       Adding generic-array v0.12.4 (latest: v1.0.0)
[INFO] [stderr]       Adding getrandom v0.1.16 (latest: v0.2.13)
[INFO] [stderr]       Adding hex-literal v0.2.2 (latest: v0.4.1)
[INFO] [stderr]       Adding indoc v0.3.6 (latest: v2.0.5)
[INFO] [stderr]       Adding indoc-impl v0.3.6 (latest: v0.3.7)
[INFO] [stderr]       Adding inventory v0.1.11 (latest: v0.3.15)
[INFO] [stderr]       Adding lock_api v0.3.4 (latest: v0.4.11)
[INFO] [stderr]       Adding merlin v2.0.1 (latest: v3.0.0)
[INFO] [stderr]       Adding opaque-debug v0.2.3 (latest: v0.3.1)
[INFO] [stderr]       Adding parking_lot v0.10.2 (latest: v0.12.1)
[INFO] [stderr]       Adding parking_lot_core v0.7.3 (latest: v0.9.9)
[INFO] [stderr]       Adding paste v0.1.18 (latest: v1.0.14)
[INFO] [stderr]       Adding pyo3 v0.9.2 (latest: v0.21.1)
[INFO] [stderr]       Adding pyo3-derive-backend v0.9.2 (latest: v0.12.5)
[INFO] [stderr]       Adding pyo3cls v0.9.2 (latest: v0.12.5)
[INFO] [stderr]       Adding rand v0.7.3 (latest: v0.8.5)
[INFO] [stderr]       Adding rand_chacha v0.2.2 (latest: v0.3.1)
[INFO] [stderr]       Adding rand_core v0.5.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_hc v0.2.0 (latest: v0.3.2)
[INFO] [stderr]       Adding redox_syscall v0.1.57 (latest: v0.5.1)
[INFO] [stderr]       Adding schnorrkel v0.9.1 (latest: v0.11.4)
[INFO] [stderr]       Adding sha2 v0.8.2 (latest: v0.10.8)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding unindent v0.1.11 (latest: v0.2.3)
[INFO] [stderr]       Adding wasi v0.9.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pyo3cls v0.9.2
[INFO] [stderr]   Downloaded pyo3-derive-backend v0.9.2
[INFO] [stderr]   Downloaded pyo3 v0.9.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f2d8e6937768cf8b72872ee5f75d7c6de2a2ce433333d6846653fdf3748d9609
[INFO] running `Command { std: "docker" "start" "-a" "f2d8e6937768cf8b72872ee5f75d7c6de2a2ce433333d6846653fdf3748d9609", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2d8e6937768cf8b72872ee5f75d7c6de2a2ce433333d6846653fdf3748d9609", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2d8e6937768cf8b72872ee5f75d7c6de2a2ce433333d6846653fdf3748d9609", kill_on_drop: false }`
[INFO] [stdout] f2d8e6937768cf8b72872ee5f75d7c6de2a2ce433333d6846653fdf3748d9609
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a07be599412c6333e746136f6dbb4c133765ae0f86795fde3b2dbf7e55d150de
[INFO] running `Command { std: "docker" "start" "-a" "a07be599412c6333e746136f6dbb4c133765ae0f86795fde3b2dbf7e55d150de", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.8.3
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]    Compiling inventory v0.1.11
[INFO] [stderr]    Compiling unindent v0.1.11
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]    Compiling hex-literal-impl v0.2.3
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]    Compiling ctor v0.1.26
[INFO] [stderr]    Compiling pyo3-derive-backend v0.9.2
[INFO] [stderr]    Compiling inventory-impl v0.1.11
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/lock_api-0.3.4/src/lib.rs:91:42
[INFO] [stdout]    |
[INFO] [stdout] 91 | #![cfg_attr(feature = "nightly", feature(const_fn))]
[INFO] [stdout]    |                                          ^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling indoc-impl v0.3.6
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lock_api` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "a07be599412c6333e746136f6dbb4c133765ae0f86795fde3b2dbf7e55d150de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a07be599412c6333e746136f6dbb4c133765ae0f86795fde3b2dbf7e55d150de", kill_on_drop: false }`
[INFO] [stdout] a07be599412c6333e746136f6dbb4c133765ae0f86795fde3b2dbf7e55d150de