[INFO] cloning repository https://github.com/derivator/tafkars
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/derivator/tafkars" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fderivator%2Ftafkars", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fderivator%2Ftafkars'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 112741aa9c4e4202a27ebae8f10718c53199fcb2
[INFO] checking derivator/tafkars against try#e658ebe4ffa1b515cd2ef06dd428d0d063e2ae6b for pr-144896
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fderivator%2Ftafkars" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/derivator/tafkars
[INFO] finished tweaking git repo https://github.com/derivator/tafkars
[INFO] tweaked toml for git repo https://github.com/derivator/tafkars written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/derivator/tafkars on toolchain e658ebe4ffa1b515cd2ef06dd428d0d063e2ae6b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e658ebe4ffa1b515cd2ef06dd428d0d063e2ae6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/derivator/tafkars 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" "+e658ebe4ffa1b515cd2ef06dd428d0d063e2ae6b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr] warning: /workspace/builds/worker-7-tc2/source/Cargo.toml: unused manifest key: workspace.package.name
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/derivator/lemmy`
[INFO] [stderr]     Updating git submodule `https://github.com/LemmyNet/lemmy-translations.git`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded uuid v1.3.4
[INFO] [stderr]   Downloaded unicode-id v0.3.3
[INFO] [stderr]   Downloaded pin-project v1.1.0
[INFO] [stderr]   Downloaded actix_derive v0.6.0
[INFO] [stderr]   Downloaded actix v0.13.0
[INFO] [stderr]   Downloaded typed-builder v0.10.0
[INFO] [stderr]   Downloaded background-jobs-actix v0.13.1
[INFO] [stderr]   Downloaded pin-project-internal v1.1.0
[INFO] [stderr]   Downloaded background-jobs-core v0.13.0
[INFO] [stderr]   Downloaded background-jobs v0.13.0
[INFO] [stderr]   Downloaded markdown v1.0.0-alpha.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:ae6f63d130afcfff7f91f5ba9fdb2a74d52830289c6a2ea2d23a94dcfb480a0d" "/opt/rustwide/cargo-home/bin/cargo" "+e658ebe4ffa1b515cd2ef06dd428d0d063e2ae6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d9023be704d69384f027c43e945df24c3ed0f0acccc748b067670787e5815e30
[INFO] running `Command { std: "docker" "start" "-a" "d9023be704d69384f027c43e945df24c3ed0f0acccc748b067670787e5815e30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d9023be704d69384f027c43e945df24c3ed0f0acccc748b067670787e5815e30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9023be704d69384f027c43e945df24c3ed0f0acccc748b067670787e5815e30", kill_on_drop: false }`
[INFO] [stdout] d9023be704d69384f027c43e945df24c3ed0f0acccc748b067670787e5815e30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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:ae6f63d130afcfff7f91f5ba9fdb2a74d52830289c6a2ea2d23a94dcfb480a0d" "/opt/rustwide/cargo-home/bin/cargo" "+e658ebe4ffa1b515cd2ef06dd428d0d063e2ae6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 42596c23a16405c56974206db9b19627cb59a767bfe5296af09ac24b3dc3211e
[INFO] running `Command { std: "docker" "start" "-a" "42596c23a16405c56974206db9b19627cb59a767bfe5296af09ac24b3dc3211e", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr] warning: /opt/rustwide/workdir/Cargo.toml: unused manifest key: workspace.package.name
[INFO] [stderr]    Compiling proc-macro2 v1.0.59
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling log v0.4.18
[INFO] [stderr]    Compiling serde v1.0.164
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]     Checking lock_api v0.4.10
[INFO] [stderr]    Compiling tokio v1.28.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.59/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]     Checking itoa v1.0.6
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]    Compiling async-trait v0.1.68
[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" "42596c23a16405c56974206db9b19627cb59a767bfe5296af09ac24b3dc3211e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42596c23a16405c56974206db9b19627cb59a767bfe5296af09ac24b3dc3211e", kill_on_drop: false }`
[INFO] [stdout] 42596c23a16405c56974206db9b19627cb59a767bfe5296af09ac24b3dc3211e