[INFO] fetching crate instance-chart 0.4.0...
[INFO] checking instance-chart-0.4.0 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate instance-chart 0.4.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate instance-chart 0.4.0 on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate instance-chart 0.4.0
[INFO] finished tweaking crates.io crate instance-chart 0.4.0
[INFO] tweaked toml for crates.io crate instance-chart 0.4.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate instance-chart 0.4.0 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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "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 console-api v0.4.0
[INFO] [stderr]   Downloaded socket2 v0.5.2
[INFO] [stderr]   Downloaded serde-big-array v0.5.1
[INFO] [stderr]   Downloaded mac_address v1.1.4
[INFO] [stderr]   Downloaded console-subscriber v0.1.8
[INFO] [stderr]   Downloaded axum v0.6.15
[INFO] [stderr]   Downloaded hdrhistogram v7.5.2
[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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 72434d46dbce4f79fcaca45d854d2c77ba83dec96228bfffbb75a75a2b97b69c
[INFO] running `Command { std: "docker" "start" "-a" "72434d46dbce4f79fcaca45d854d2c77ba83dec96228bfffbb75a75a2b97b69c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72434d46dbce4f79fcaca45d854d2c77ba83dec96228bfffbb75a75a2b97b69c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72434d46dbce4f79fcaca45d854d2c77ba83dec96228bfffbb75a75a2b97b69c", kill_on_drop: false }`
[INFO] [stdout] 72434d46dbce4f79fcaca45d854d2c77ba83dec96228bfffbb75a75a2b97b69c
[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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d55cc82f7fe463be5913fc5462323b85de24b121d4525c6107ab25c233a6d521
[INFO] running `Command { std: "docker" "start" "-a" "d55cc82f7fe463be5913fc5462323b85de24b121d4525c6107ab25c233a6d521", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling tokio v1.27.0
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]    Compiling serde_derive v1.0.160
[INFO] [stderr]    Compiling rustversion v1.0.12
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]    Compiling anyhow v1.0.70
[INFO] [stderr]    Compiling async-trait v0.1.68
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]     Checking tower-layer v0.3.2
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.56/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 itertools v0.10.5
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]    Compiling num-traits v0.2.15
[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" "d55cc82f7fe463be5913fc5462323b85de24b121d4525c6107ab25c233a6d521", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d55cc82f7fe463be5913fc5462323b85de24b121d4525c6107ab25c233a6d521", kill_on_drop: false }`
[INFO] [stdout] d55cc82f7fe463be5913fc5462323b85de24b121d4525c6107ab25c233a6d521
