[INFO] cloning repository https://github.com/vincenzopalazzo/build-an-async-runtime-tutorial [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vincenzopalazzo/build-an-async-runtime-tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvincenzopalazzo%2Fbuild-an-async-runtime-tutorial", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvincenzopalazzo%2Fbuild-an-async-runtime-tutorial'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1d07080f326ccbe2c5aa6bdc2bb05c95c0256b1e [INFO] checking vincenzopalazzo/build-an-async-runtime-tutorial against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvincenzopalazzo%2Fbuild-an-async-runtime-tutorial" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/vincenzopalazzo/build-an-async-runtime-tutorial on toolchain 506512391b1a75ae450d36c9420978402a91abcc [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/vincenzopalazzo/build-an-async-runtime-tutorial [INFO] finished tweaking git repo https://github.com/vincenzopalazzo/build-an-async-runtime-tutorial [INFO] tweaked toml for git repo https://github.com/vincenzopalazzo/build-an-async-runtime-tutorial written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/vincenzopalazzo/build-an-async-runtime-tutorial 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" "+506512391b1a75ae450d36c9420978402a91abcc" "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] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded ctor v0.1.26 [INFO] [stderr] Downloaded value-bag v1.0.0-alpha.9 [INFO] [stderr] Downloaded serde_qs v0.8.5 [INFO] [stderr] Downloaded surf v2.3.2 [INFO] [stderr] Downloaded once_cell v1.17.0 [INFO] [stderr] Downloaded proc-macro2 v1.0.50 [INFO] [stderr] Downloaded serde_json v1.0.91 [INFO] [stderr] Downloaded futures-task v0.3.25 [INFO] [stderr] Downloaded bytes v1.3.0 [INFO] [stderr] Downloaded concurrent-queue v2.1.0 [INFO] [stderr] Downloaded http-types v2.12.0 [INFO] [stderr] Downloaded http-client v6.5.3 [INFO] [stderr] Downloaded base64 v0.21.0 [INFO] [stderr] Downloaded tokio-util v0.7.4 [INFO] [stderr] Downloaded hyper v0.14.23 [INFO] [stderr] Downloaded tokio v1.24.2 [INFO] [stderr] Downloaded reqwest v0.11.14 [INFO] [stderr] Downloaded openssl v0.10.45 [INFO] [stderr] Downloaded parking_lot_core v0.9.6 [INFO] [stderr] Downloaded encoding_rs v0.8.31 [INFO] [stderr] Downloaded nom v5.1.2 [INFO] [stderr] Downloaded futures-util v0.3.25 [INFO] [stderr] 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v1.0.4 [INFO] [stderr] Downloaded base-x v0.2.11 [INFO] [stderr] Downloaded stdweb-internal-runtime v0.1.5 [INFO] [stderr] Downloaded stdweb v0.4.20 [INFO] [stderr] Downloaded standback v0.2.17 [INFO] [stderr] Downloaded time-macros-impl v0.1.2 [INFO] [stderr] Downloaded time-macros v0.1.1 [INFO] [stderr] Downloaded time v0.2.27 [INFO] [stderr] Downloaded cookie v0.14.4 [INFO] [stderr] Downloaded futures-core v0.3.25 [INFO] [stderr] Downloaded futures-io v0.3.25 [INFO] [stderr] Downloaded parking v2.0.0 [INFO] [stderr] Downloaded waker-fn v1.1.0 [INFO] [stderr] Downloaded futures-lite v1.12.0 [INFO] [stderr] Downloaded blocking v1.3.0 [INFO] [stderr] Downloaded async-global-executor v2.3.1 [INFO] [stderr] Downloaded futures-sink v0.3.25 [INFO] [stderr] Downloaded futures-channel v0.3.25 [INFO] [stderr] Downloaded wasm-bindgen-futures v0.4.33 [INFO] [stderr] Downloaded infer v0.2.3 [INFO] [stderr] Downloaded stdweb-derive v0.5.3 [INFO] [stderr] Downloaded sha1 v0.6.1 [INFO] [stderr] Downloaded stdweb-internal-macros v0.2.9 [INFO] [stderr] Downloaded proc-macro-hack v0.5.20+deprecated [INFO] [stderr] Downloaded fastrand v1.8.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b17a320098b7152f3418dc67a2bc8e33adf69882162c0493908edf591e4f557c [INFO] running `Command { std: "docker" "start" "-a" "b17a320098b7152f3418dc67a2bc8e33adf69882162c0493908edf591e4f557c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b17a320098b7152f3418dc67a2bc8e33adf69882162c0493908edf591e4f557c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b17a320098b7152f3418dc67a2bc8e33adf69882162c0493908edf591e4f557c", kill_on_drop: false }` [INFO] [stdout] b17a320098b7152f3418dc67a2bc8e33adf69882162c0493908edf591e4f557c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e04b9cfbc90a8d94b6d7abbf9be4f59674d3541de0cc81fee202221395177633 [INFO] running `Command { std: "docker" "start" "-a" "e04b9cfbc90a8d94b6d7abbf9be4f59674d3541de0cc81fee202221395177633", 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] Compiling proc-macro2 v1.0.50 [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 libc v0.2.139 [INFO] [stderr] Compiling value-bag v1.0.0-alpha.9 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling futures-core v0.3.25 [INFO] [stderr] Compiling cc v1.0.78 [INFO] [stderr] Compiling pkg-config v0.3.26 [INFO] [stderr] Checking futures-io v0.3.25 [INFO] [stderr] Compiling generic-array v0.14.6 [INFO] [stderr] Checking once_cell v1.17.0 [INFO] [stderr] Compiling slab v0.4.7 [INFO] [stderr] Compiling serde_derive v1.0.152 [INFO] [stderr] Compiling crossbeam-utils v0.8.14 [INFO] [stderr] Compiling serde v1.0.152 [INFO] [stderr] Checking event-listener v2.5.3 [INFO] [stderr] Checking bytes v1.3.0 [INFO] [stderr] Checking itoa v1.0.5 [INFO] [stderr] Checking futures-sink v0.3.25 [INFO] [stderr] Checking percent-encoding v2.2.0 [INFO] [stderr] Compiling tokio v1.24.2 [INFO] [stderr] Compiling futures-task v0.3.25 [INFO] [stderr] Checking waker-fn v1.1.0 [INFO] [stderr] Checking fastrand v1.8.0 [INFO] [stderr] Checking parking v2.0.0 [INFO] [stderr] Compiling futures-channel v0.3.25 [INFO] [stderr] Checking ryu v1.0.12 [INFO] [stderr] Checking tinyvec v1.6.0 [INFO] [stderr] Checking tracing-core v0.1.30 [INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.50/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 futures-util v0.3.25 [INFO] [stderr] Checking subtle v2.4.1 [INFO] [stderr] Checking form_urlencoded v1.1.0 [INFO] [stderr] Compiling standback v0.2.17 [INFO] [stderr] Checking unicode-bidi v0.3.10 [INFO] [stderr] Compiling openssl v0.10.45 [INFO] [stderr] Checking openssl-probe v0.1.5 [INFO] [stderr] Checking foreign-types-shared v0.1.1 [INFO] [stderr] Compiling polling v2.5.2 [INFO] [stderr] Compiling proc-macro-hack v0.5.20+deprecated [INFO] [stderr] Compiling native-tls v0.2.11 [INFO] [stderr] Checking concurrent-queue v2.1.0 [INFO] [stderr] Checking foreign-types v0.3.2 [INFO] [stderr] Checking http v0.2.8 [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [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 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "e04b9cfbc90a8d94b6d7abbf9be4f59674d3541de0cc81fee202221395177633", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e04b9cfbc90a8d94b6d7abbf9be4f59674d3541de0cc81fee202221395177633", kill_on_drop: false }` [INFO] [stdout] e04b9cfbc90a8d94b6d7abbf9be4f59674d3541de0cc81fee202221395177633