[INFO] fetching crate awscurl 0.1.0...
[INFO] checking awscurl-0.1.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate awscurl 0.1.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate awscurl 0.1.0
[INFO] finished tweaking crates.io crate awscurl 0.1.0
[INFO] tweaked toml for crates.io crate awscurl 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate awscurl 0.1.0 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate awscurl 0.1.0 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sha256 v1.1.2
[INFO] [stderr]   Downloaded ureq v2.6.2
[INFO] [stderr]   Downloaded syn v2.0.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a2cd27981a2f2d4dd27c70ba10598d7e908e8eca3ec231849adcc9214c13c232
[INFO] running `Command { std: "docker" "start" "-a" "a2cd27981a2f2d4dd27c70ba10598d7e908e8eca3ec231849adcc9214c13c232", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2cd27981a2f2d4dd27c70ba10598d7e908e8eca3ec231849adcc9214c13c232", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2cd27981a2f2d4dd27c70ba10598d7e908e8eca3ec231849adcc9214c13c232", kill_on_drop: false }`
[INFO] [stdout] a2cd27981a2f2d4dd27c70ba10598d7e908e8eca3ec231849adcc9214c13c232
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0eacfa727279463da7a3f20685288bd2e0e9fec5fcab8e88cb2223dda1c1ca0d
[INFO] running `Command { std: "docker" "start" "-a" "0eacfa727279463da7a3f20685288bd2e0e9fec5fcab8e88cb2223dda1c1ca0d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking cpufeatures v0.2.6
[INFO] [stderr]     Checking percent-encoding v2.2.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling rustls v0.20.8
[INFO] [stderr]     Checking unicode-bidi v0.3.13
[INFO] [stderr]     Checking form_urlencoded v1.1.0
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]     Checking crc32fast v1.3.2
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]     Checking iana-time-zone v0.1.56
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.56/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]     Checking http v0.2.9
[INFO] [stderr]     Checking flate2 v1.0.25
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[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" "0eacfa727279463da7a3f20685288bd2e0e9fec5fcab8e88cb2223dda1c1ca0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0eacfa727279463da7a3f20685288bd2e0e9fec5fcab8e88cb2223dda1c1ca0d", kill_on_drop: false }`
[INFO] [stdout] 0eacfa727279463da7a3f20685288bd2e0e9fec5fcab8e88cb2223dda1c1ca0d