[INFO] cloning repository https://github.com/sevir/rr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sevir/rr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsevir%2Frr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsevir%2Frr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4e7f6bbffe98025e18be7460035c46daf4180524
[INFO] checking sevir/rr against try#6db1a6a7ebb2ad243051f3ff949f987dd70cde2b+rustflags=-Dreturn-local-variable-ptr for pr-134218
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsevir%2Frr" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sevir/rr on toolchain 6db1a6a7ebb2ad243051f3ff949f987dd70cde2b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6db1a6a7ebb2ad243051f3ff949f987dd70cde2b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sevir/rr
[INFO] finished tweaking git repo https://github.com/sevir/rr
[INFO] tweaked toml for git repo https://github.com/sevir/rr written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/sevir/rr already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6db1a6a7ebb2ad243051f3ff949f987dd70cde2b" "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 proc-macro2 v1.0.51
[INFO] [stderr]   Downloaded const-random v0.1.15
[INFO] [stderr]   Downloaded const-random-macro v0.1.15
[INFO] [stderr]   Downloaded windows-targets v0.42.1
[INFO] [stderr]   Downloaded psl-types v2.0.11
[INFO] [stderr]   Downloaded futures-core v0.3.26
[INFO] [stderr]   Downloaded futures-io v0.3.26
[INFO] [stderr]   Downloaded futures-task v0.3.26
[INFO] [stderr]   Downloaded time-macros v0.2.7
[INFO] [stderr]   Downloaded rhai-rand v0.1.4
[INFO] [stderr]   Downloaded futures-channel v0.3.26
[INFO] [stderr]   Downloaded textwrap v0.16.0
[INFO] [stderr]   Downloaded unicode-bidi v0.3.10
[INFO] [stderr]   Downloaded publicsuffix v2.2.3
[INFO] [stderr]   Downloaded cookie_store v0.16.1
[INFO] [stderr]   Downloaded time v0.3.19
[INFO] [stderr]   Downloaded serde_json v1.0.93
[INFO] [stderr]   Downloaded futures-sink v0.3.26
[INFO] [stderr]   Downloaded futures-util v0.3.26
[INFO] [stderr]   Downloaded reqwest v0.11.14
[INFO] [stderr]   Downloaded hyper v0.14.24
[INFO] [stderr]   Downloaded clap v3.2.23
[INFO] [stderr]   Downloaded rhai v1.12.0
[INFO] [stderr]   Downloaded rhai_codegen v1.5.0
[INFO] [stderr]   Downloaded tokio v1.25.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+6db1a6a7ebb2ad243051f3ff949f987dd70cde2b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8e4754cf22970c75dfd0b8679c71070e0382e792c51ffcd1b76b7cb82d3cbe3f
[INFO] running `Command { std: "docker" "start" "-a" "8e4754cf22970c75dfd0b8679c71070e0382e792c51ffcd1b76b7cb82d3cbe3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e4754cf22970c75dfd0b8679c71070e0382e792c51ffcd1b76b7cb82d3cbe3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e4754cf22970c75dfd0b8679c71070e0382e792c51ffcd1b76b7cb82d3cbe3f", kill_on_drop: false }`
[INFO] [stdout] 8e4754cf22970c75dfd0b8679c71070e0382e792c51ffcd1b76b7cb82d3cbe3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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 -Dreturn-local-variable-ptr" "-e" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+6db1a6a7ebb2ad243051f3ff949f987dd70cde2b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7888a036faffde4cb0cf568fb1b42b1d0621f00da5f02a3111d90ef560194dd7
[INFO] running `Command { std: "docker" "start" "-a" "7888a036faffde4cb0cf568fb1b42b1d0621f00da5f02a3111d90ef560194dd7", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]     Checking itoa v1.0.5
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling futures-core v0.3.26
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling futures-task v0.3.26
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking ryu v1.0.12
[INFO] [stderr]    Compiling serde_json v1.0.93
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]    Compiling futures-util v0.3.26
[INFO] [stderr]    Compiling tokio v1.25.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.51/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling openssl v0.10.45
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking percent-encoding v2.2.0
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking unicode-bidi v0.3.10
[INFO] [stderr]     Checking http v0.2.9
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "7888a036faffde4cb0cf568fb1b42b1d0621f00da5f02a3111d90ef560194dd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7888a036faffde4cb0cf568fb1b42b1d0621f00da5f02a3111d90ef560194dd7", kill_on_drop: false }`
[INFO] [stdout] 7888a036faffde4cb0cf568fb1b42b1d0621f00da5f02a3111d90ef560194dd7