[INFO] fetching crate h2_wasi 0.3.15...
[INFO] checking h2_wasi-0.3.15 against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-4
[INFO] extracting crate h2_wasi 0.3.15 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate h2_wasi 0.3.15 on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4-tc1/source/.cargo/config.toml
[INFO] started tweaking crates.io crate h2_wasi 0.3.15
[INFO] finished tweaking crates.io crate h2_wasi 0.3.15
[INFO] tweaked toml for crates.io crate h2_wasi 0.3.15 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate h2_wasi 0.3.15 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasmedge_wasi_socket v0.4.3
[INFO] [stderr]   Downloaded tokio-util_wasi v0.7.5
[INFO] [stderr]   Downloaded mio_wasi v0.8.5
[INFO] [stderr]   Downloaded tokio_wasi v1.25.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 17df329c1336ae5430a7ff2ddfe6db64494aa26106bfc1f25ac9133c53db4525
[INFO] running `Command { std: "docker" "start" "-a" "17df329c1336ae5430a7ff2ddfe6db64494aa26106bfc1f25ac9133c53db4525", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17df329c1336ae5430a7ff2ddfe6db64494aa26106bfc1f25ac9133c53db4525", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17df329c1336ae5430a7ff2ddfe6db64494aa26106bfc1f25ac9133c53db4525", kill_on_drop: false }`
[INFO] [stdout] 17df329c1336ae5430a7ff2ddfe6db64494aa26106bfc1f25ac9133c53db4525
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ad5ecd5f9f22a3a3a9fabcfc943d8a2748cf035e55299aa13f58a3c4b31eb0f
[INFO] running `Command { std: "docker" "start" "-a" "5ad5ecd5f9f22a3a3a9fabcfc943d8a2748cf035e55299aa13f58a3c4b31eb0f", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]    Compiling tokio_wasi v1.25.0
[INFO] [stderr]    Compiling futures-task v0.3.26
[INFO] [stderr]    Compiling tokio v1.25.0
[INFO] [stderr]    Compiling rustls v0.20.8
[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]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling futures-util v0.3.26
[INFO] [stderr]     Checking rand_chacha v0.3.1
[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" "5ad5ecd5f9f22a3a3a9fabcfc943d8a2748cf035e55299aa13f58a3c4b31eb0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ad5ecd5f9f22a3a3a9fabcfc943d8a2748cf035e55299aa13f58a3c4b31eb0f", kill_on_drop: false }`
[INFO] [stdout] 5ad5ecd5f9f22a3a3a9fabcfc943d8a2748cf035e55299aa13f58a3c4b31eb0f
[INFO] checking h2_wasi-0.3.15 against try#36dbcaee1a55543dfc181be52a69d99ff46ff62f for pr-122960-4
[INFO] extracting crate h2_wasi 0.3.15 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate h2_wasi 0.3.15 on toolchain 36dbcaee1a55543dfc181be52a69d99ff46ff62f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate h2_wasi 0.3.15
[INFO] finished tweaking crates.io crate h2_wasi 0.3.15
[INFO] tweaked toml for crates.io crate h2_wasi 0.3.15 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate h2_wasi 0.3.15 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" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 98978ac833427e309bdd7b5328f3efa35553804ac6d5c189bfb218cfc3e15214
[INFO] running `Command { std: "docker" "start" "-a" "98978ac833427e309bdd7b5328f3efa35553804ac6d5c189bfb218cfc3e15214", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98978ac833427e309bdd7b5328f3efa35553804ac6d5c189bfb218cfc3e15214", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98978ac833427e309bdd7b5328f3efa35553804ac6d5c189bfb218cfc3e15214", kill_on_drop: false }`
[INFO] [stdout] 98978ac833427e309bdd7b5328f3efa35553804ac6d5c189bfb218cfc3e15214
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1cc935679c6c6b8279e6c043ed4119d3268f332b308cdd31ed2f3af2fef991a4
[INFO] running `Command { std: "docker" "start" "-a" "1cc935679c6c6b8279e6c043ed4119d3268f332b308cdd31ed2f3af2fef991a4", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] skipping non-2021 edition `2018`
[INFO] running `Command { std: "docker" "inspect" "1cc935679c6c6b8279e6c043ed4119d3268f332b308cdd31ed2f3af2fef991a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cc935679c6c6b8279e6c043ed4119d3268f332b308cdd31ed2f3af2fef991a4", kill_on_drop: false }`
[INFO] [stdout] 1cc935679c6c6b8279e6c043ed4119d3268f332b308cdd31ed2f3af2fef991a4