[INFO] fetching crate df-helper 0.2.26...
[INFO] checking df-helper-0.2.26 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate df-helper 0.2.26 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate df-helper 0.2.26
[INFO] finished tweaking crates.io crate df-helper 0.2.26
[INFO] tweaked toml for crates.io crate df-helper 0.2.26 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate df-helper 0.2.26 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 df-helper 0.2.26 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded value-bag v1.0.0-alpha.9
[INFO] [stderr]   Downloaded sha256 v1.1.1
[INFO] [stderr]   Downloaded dotenvy v0.15.6
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[INFO] [stderr]   Downloaded email-encoding v0.1.3
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[INFO] [stderr]   Downloaded email_address v0.2.3
[INFO] [stderr]   Downloaded blocking v1.2.0
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[INFO] [stderr]   Downloaded mysql_common v0.29.1
[INFO] [stderr]   Downloaded redis v0.22.1
[INFO] [stderr]   Downloaded libc v0.2.134
[INFO] [stderr]   Downloaded frunk v0.4.0
[INFO] [stderr]   Downloaded lru v0.8.1
[INFO] [stderr]   Downloaded frunk_derives v0.4.0
[INFO] [stderr]   Downloaded frunk_core v0.4.0
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[INFO] [stderr]   Downloaded named_pipe v0.4.1
[INFO] [stderr]   Downloaded async-channel v1.7.1
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[INFO] [stderr]   Downloaded kafka v0.9.0
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[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.11
[INFO] [stderr]   Downloaded bigdecimal v0.3.0
[INFO] [stderr]   Downloaded local_ipaddress v0.1.3
[INFO] [stderr]   Downloaded derive_utils v0.11.2
[INFO] [stderr]   Downloaded io-enum v1.0.1
[INFO] [stderr]   Downloaded quoted_printable v0.4.5
[INFO] [stderr]   Downloaded frunk_proc_macros v0.1.0
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.12
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[INFO] [stderr]   Downloaded uuid v1.2.1
[INFO] [stderr]   Downloaded curl-sys v0.4.56+curl-7.83.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 76e7b44c027fc68e4a05c6dcf57f3d3a5718f41e573a3346f7538fc966c0727c
[INFO] running `Command { std: "docker" "start" "-a" "76e7b44c027fc68e4a05c6dcf57f3d3a5718f41e573a3346f7538fc966c0727c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76e7b44c027fc68e4a05c6dcf57f3d3a5718f41e573a3346f7538fc966c0727c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76e7b44c027fc68e4a05c6dcf57f3d3a5718f41e573a3346f7538fc966c0727c", kill_on_drop: false }`
[INFO] [stdout] 76e7b44c027fc68e4a05c6dcf57f3d3a5718f41e573a3346f7538fc966c0727c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] e812357650be49339e603302bf91cb08224fccc3d228a5b4cab54666cc19eb4e
[INFO] running `Command { std: "docker" "start" "-a" "e812357650be49339e603302bf91cb08224fccc3d228a5b4cab54666cc19eb4e", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.134
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling syn v1.0.101
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]     Checking futures-io v0.3.25
[INFO] [stderr]    Compiling rustls v0.20.7
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.9
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking bytes v1.2.1
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.46/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 static_assertions v1.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.12
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling parking_lot_core v0.9.4
[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling nom v7.1.1
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling aho-corasick v0.7.19
[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" "e812357650be49339e603302bf91cb08224fccc3d228a5b4cab54666cc19eb4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e812357650be49339e603302bf91cb08224fccc3d228a5b4cab54666cc19eb4e", kill_on_drop: false }`
[INFO] [stdout] e812357650be49339e603302bf91cb08224fccc3d228a5b4cab54666cc19eb4e