[INFO] fetching crate async-component 0.9.0...
[INFO] checking async-component-0.9.0 against master#b0696a5160711c068cb1f01b7437db7990d15750 for pr-121848
[INFO] extracting crate async-component 0.9.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate async-component 0.9.0 on toolchain b0696a5160711c068cb1f01b7437db7990d15750
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-component 0.9.0
[INFO] finished tweaking crates.io crate async-component 0.9.0
[INFO] tweaked toml for crates.io crate async-component 0.9.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate async-component 0.9.0 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" "+b0696a5160711c068cb1f01b7437db7990d15750" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-macro v0.3.25
[INFO] [stderr]   Downloaded futures-sink v0.3.25
[INFO] [stderr]   Downloaded futures v0.3.25
[INFO] [stderr]   Downloaded async-component-core v0.9.0
[INFO] [stderr]   Downloaded async-component-components v0.9.0
[INFO] [stderr]   Downloaded futures-task v0.3.25
[INFO] [stderr]   Downloaded futures-executor v0.3.25
[INFO] [stderr]   Downloaded async-component-macro v0.9.0
[INFO] [stderr]   Downloaded futures-core v0.3.25
[INFO] [stderr]   Downloaded futures-io v0.3.25
[INFO] [stderr]   Downloaded slab v0.4.7
[INFO] [stderr]   Downloaded bytes v1.3.0
[INFO] [stderr]   Downloaded mio v0.8.5
[INFO] [stderr]   Downloaded futures-channel v0.3.25
[INFO] [stderr]   Downloaded syn v1.0.105
[INFO] [stderr]   Downloaded futures-util v0.3.25
[INFO] [stderr]   Downloaded tokio v1.23.0
[INFO] [stderr]   Downloaded libc v0.2.138
[INFO] [stderr]   Downloaded num_cpus v1.14.0
[INFO] [stderr]   Downloaded tokio-macros v1.8.2
[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" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a54d3161169f6f29fef58737cc13aa0fcb72aa7b5e84add96b3f7cfa8189e99
[INFO] running `Command { std: "docker" "start" "-a" "4a54d3161169f6f29fef58737cc13aa0fcb72aa7b5e84add96b3f7cfa8189e99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a54d3161169f6f29fef58737cc13aa0fcb72aa7b5e84add96b3f7cfa8189e99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a54d3161169f6f29fef58737cc13aa0fcb72aa7b5e84add96b3f7cfa8189e99", kill_on_drop: false }`
[INFO] [stdout] 4a54d3161169f6f29fef58737cc13aa0fcb72aa7b5e84add96b3f7cfa8189e99
[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=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f806d04ef606fb0b6bebaf8005de9f0a4a1a3a2e7583fcc94c9d8f0791325ef0
[INFO] running `Command { std: "docker" "start" "-a" "f806d04ef606fb0b6bebaf8005de9f0a4a1a3a2e7583fcc94c9d8f0791325ef0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.105
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling libc v0.2.138
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling parking_lot_core v0.9.5
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]     Checking futures-sink v0.3.25
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]     Checking futures-io v0.3.25
[INFO] [stderr]    Compiling tokio v1.23.0
[INFO] [stderr]     Checking bytes v1.3.0
[INFO] [stderr]     Checking async-component-core v0.9.0
[INFO] [stderr]     Checking async-component-components v0.9.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.47/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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" "f806d04ef606fb0b6bebaf8005de9f0a4a1a3a2e7583fcc94c9d8f0791325ef0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f806d04ef606fb0b6bebaf8005de9f0a4a1a3a2e7583fcc94c9d8f0791325ef0", kill_on_drop: false }`
[INFO] [stdout] f806d04ef606fb0b6bebaf8005de9f0a4a1a3a2e7583fcc94c9d8f0791325ef0
[INFO] checking async-component-0.9.0 against try#bfe97fcae016881ad333f0ff8cea2cadb9cf136c for pr-121848
[INFO] extracting crate async-component 0.9.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate async-component 0.9.0 on toolchain bfe97fcae016881ad333f0ff8cea2cadb9cf136c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-component 0.9.0
[INFO] finished tweaking crates.io crate async-component 0.9.0
[INFO] tweaked toml for crates.io crate async-component 0.9.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate async-component 0.9.0 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" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "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" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ece74c1fb564efbbe6c196ea5d6f621f4f0aa615e723886192771030508a235a
[INFO] running `Command { std: "docker" "start" "-a" "ece74c1fb564efbbe6c196ea5d6f621f4f0aa615e723886192771030508a235a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ece74c1fb564efbbe6c196ea5d6f621f4f0aa615e723886192771030508a235a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ece74c1fb564efbbe6c196ea5d6f621f4f0aa615e723886192771030508a235a", kill_on_drop: false }`
[INFO] [stdout] ece74c1fb564efbbe6c196ea5d6f621f4f0aa615e723886192771030508a235a
[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=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 183cde9bad025a389c637285d122e17b8cf025e289685988d5e31325b7dcca5c
[INFO] running `Command { std: "docker" "start" "-a" "183cde9bad025a389c637285d122e17b8cf025e289685988d5e31325b7dcca5c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling syn v1.0.105
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling libc v0.2.138
[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 lock_api v0.4.9
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]    Compiling parking_lot_core v0.9.5
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking futures-sink v0.3.25
[INFO] [stderr]     Checking futures-io v0.3.25
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]    Compiling tokio v1.23.0
[INFO] [stderr]     Checking bytes v1.3.0
[INFO] [stderr]     Checking async-component-core v0.9.0
[INFO] [stderr]     Checking async-component-components v0.9.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.47/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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" "183cde9bad025a389c637285d122e17b8cf025e289685988d5e31325b7dcca5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "183cde9bad025a389c637285d122e17b8cf025e289685988d5e31325b7dcca5c", kill_on_drop: false }`
[INFO] [stdout] 183cde9bad025a389c637285d122e17b8cf025e289685988d5e31325b7dcca5c
