[INFO] cloning repository https://github.com/rurigk/potv2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rurigk/potv2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frurigk%2Fpotv2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frurigk%2Fpotv2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e774561057ce9aeaaa9f54a6e7cf0e53571fdd48
[INFO] checking rurigk/potv2 against try#7b3da9103634dffd4f4365cfd8642427c781d99f+rustflags=-Dinherent-method-on-receiver for 152214-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frurigk%2Fpotv2" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/rurigk/potv2
[INFO] finished tweaking git repo https://github.com/rurigk/potv2
[INFO] tweaked toml for git repo https://github.com/rurigk/potv2 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rurigk/potv2 on toolchain 7b3da9103634dffd4f4365cfd8642427c781d99f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rurigk/potv2 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" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serenity-voice-model v0.1.1
[INFO] [stderr]   Downloaded streamcatcher v1.0.1
[INFO] [stderr]   Downloaded xsalsa20poly1305 v0.8.0
[INFO] [stderr]   Downloaded tokio-test v0.4.2
[INFO] [stderr]   Downloaded serde_repr v0.1.9
[INFO] [stderr]   Downloaded darling_macro v0.14.2
[INFO] [stderr]   Downloaded ipnet v2.5.1
[INFO] [stderr]   Downloaded pnet_macros v0.28.0
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.81
[INFO] [stderr]   Downloaded pnet_macros_support v0.28.0
[INFO] [stderr]   Downloaded pnet_base v0.28.0
[INFO] [stderr]   Downloaded cc v1.0.76
[INFO] [stderr]   Downloaded poise_macros v0.4.0
[INFO] [stderr]   Downloaded audiopus v0.3.0-rc.0
[INFO] [stderr]   Downloaded darling v0.14.2
[INFO] [stderr]   Downloaded songbird v0.3.0
[INFO] [stderr]   Downloaded darling_core v0.14.2
[INFO] [stderr]   Downloaded discortp v0.4.0
[INFO] [stderr]   Downloaded symphonia-core v0.5.1
[INFO] [stderr]   Downloaded openssl-sys v0.9.77
[INFO] [stderr]   Downloaded poise v0.4.1
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.81
[INFO] [stderr]   Downloaded cxx-build v1.0.81
[INFO] [stderr]   Downloaded reqwest v0.11.12
[INFO] [stderr]   Downloaded cxx v1.0.81
[INFO] [stderr]   Downloaded cmake v0.1.49
[INFO] [stderr]   Downloaded openssl v0.10.42
[INFO] [stderr]   Downloaded serenity v0.11.5
[INFO] [stderr]   Downloaded audiopus_sys v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d038343ffcc39ce6b81c93526631b4841d019a2eaca66b1fcc6af707d0e0fcac
[INFO] running `Command { std: "docker" "start" "-a" "d038343ffcc39ce6b81c93526631b4841d019a2eaca66b1fcc6af707d0e0fcac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d038343ffcc39ce6b81c93526631b4841d019a2eaca66b1fcc6af707d0e0fcac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d038343ffcc39ce6b81c93526631b4841d019a2eaca66b1fcc6af707d0e0fcac", kill_on_drop: false }`
[INFO] [stdout] d038343ffcc39ce6b81c93526631b4841d019a2eaca66b1fcc6af707d0e0fcac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Dinherent-method-on-receiver" "-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 95b83c6a9a841febc42caec6c77ba577ad3424df571e1bab37bf39c7a6977ae6
[INFO] running `Command { std: "docker" "start" "-a" "95b83c6a9a841febc42caec6c77ba577ad3424df571e1bab37bf39c7a6977ae6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling cc v1.0.76
[INFO] [stderr]     Checking once_cell v1.16.0
[INFO] [stderr]    Compiling serde_derive v1.0.147
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]     Checking generic-array v0.14.6
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.47/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a feature with a similar name: `proc_macro_span_file`
[INFO] [stdout]    |
[INFO] [stdout] 92 -     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout] 92 +     feature(proc_macro_span, proc_macro_span_file)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking futures-io v0.3.25
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking http v0.2.8
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking num_cpus v1.14.0
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stderr]     Checking mio v0.8.5
[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" "95b83c6a9a841febc42caec6c77ba577ad3424df571e1bab37bf39c7a6977ae6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95b83c6a9a841febc42caec6c77ba577ad3424df571e1bab37bf39c7a6977ae6", kill_on_drop: false }`
[INFO] [stdout] 95b83c6a9a841febc42caec6c77ba577ad3424df571e1bab37bf39c7a6977ae6