[INFO] fetching crate bitbuffer_derive 0.10.0...
[INFO] checking bitbuffer_derive-0.10.0 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] extracting crate bitbuffer_derive 0.10.0 into /workspace/builds/worker-75/source
[INFO] validating manifest of crates.io crate bitbuffer_derive 0.10.0 on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bitbuffer_derive 0.10.0
[INFO] finished tweaking crates.io crate bitbuffer_derive 0.10.0
[INFO] tweaked toml for crates.io crate bitbuffer_derive 0.10.0 written to /workspace/builds/worker-75/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "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" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "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 bitbuffer_derive v0.10.0
[INFO] [stderr]   Downloaded bitbuffer v0.10.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 941bf94834e889c27727df7ac342d0be427dda6a6ed83bcc2b611c6a2dcf8370
[INFO] running `Command { std: "docker" "start" "-a" "941bf94834e889c27727df7ac342d0be427dda6a6ed83bcc2b611c6a2dcf8370", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "941bf94834e889c27727df7ac342d0be427dda6a6ed83bcc2b611c6a2dcf8370", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "941bf94834e889c27727df7ac342d0be427dda6a6ed83bcc2b611c6a2dcf8370", kill_on_drop: false }`
[INFO] [stdout] 941bf94834e889c27727df7ac342d0be427dda6a6ed83bcc2b611c6a2dcf8370
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85bf6e88907a6a94191e3a586ef94f74716705bbfa5d970290e2406833b8a649
[INFO] running `Command { std: "docker" "start" "-a" "85bf6e88907a6a94191e3a586ef94f74716705bbfa5d970290e2406833b8a649", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr] note: Switching to Edition 2021 will enable the use of the version 2 feature resolver in Cargo.
[INFO] [stderr] This may cause some dependencies to be built with fewer features enabled than previously.
[INFO] [stderr] More information about the resolver changes may be found at https://doc.rust-lang.org/nightly/edition-guide/rust-2021/default-cargo-resolver.html
[INFO] [stderr] When building the following dependencies, the given features will no longer be used:
[INFO] [stderr] 
[INFO] [stderr]   syn v1.0.75: visit
[INFO] [stderr]   syn v1.0.75 (as host dependency): visit
[INFO] [stderr] 
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling rustversion v1.0.5
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking syn v1.0.75
[INFO] [stderr]    Compiling err-derive v0.3.0
[INFO] [stderr]     Checking syn_util v0.4.2
[INFO] [stderr]     Checking bitbuffer_derive v0.10.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling bitbuffer_derive v0.10.0
[INFO] [stderr]     Checking bitbuffer v0.10.3
[INFO] [stderr]    Migrating tests/expand.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/write.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/read.rs from 2018 edition to 2021
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.23s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling bitbuffer_derive v0.10.0 (/tmp/fixit)
[INFO] [stderr]     Checking syn_util v0.4.2
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.69s
[INFO] running `Command { std: "docker" "inspect" "85bf6e88907a6a94191e3a586ef94f74716705bbfa5d970290e2406833b8a649", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85bf6e88907a6a94191e3a586ef94f74716705bbfa5d970290e2406833b8a649", kill_on_drop: false }`
[INFO] [stdout] 85bf6e88907a6a94191e3a586ef94f74716705bbfa5d970290e2406833b8a649