[INFO] fetching crate kct_package 0.2.0...
[INFO] checking kct_package-0.2.0 against master#f5f33ec0e0455eefa72fc5567eb1280a4d5ee206 for pr-83312
[INFO] extracting crate kct_package 0.2.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate kct_package 0.2.0 on toolchain f5f33ec0e0455eefa72fc5567eb1280a4d5ee206
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kct_package 0.2.0
[INFO] finished tweaking crates.io crate kct_package 0.2.0
[INFO] tweaked toml for crates.io crate kct_package 0.2.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "fetch" "--locked" "--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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7a760a1e3f52f50528ee15a8c722de8145ae32c77b832d8b4e5162f179c40ddd
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7a760a1e3f52f50528ee15a8c722de8145ae32c77b832d8b4e5162f179c40ddd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a760a1e3f52f50528ee15a8c722de8145ae32c77b832d8b4e5162f179c40ddd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a760a1e3f52f50528ee15a8c722de8145ae32c77b832d8b4e5162f179c40ddd", kill_on_drop: false }`
[INFO] [stdout] 7a760a1e3f52f50528ee15a8c722de8145ae32c77b832d8b4e5162f179c40ddd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f4e981db7217cd8131c25df580676c354d44cd0c459f701ca6f684e773fd66f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2f4e981db7217cd8131c25df580676c354d44cd0c459f701ca6f684e773fd66f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling siphasher v0.3.5
[INFO] [stderr]    Compiling structdump v0.1.2
[INFO] [stderr]     Checking unic-common v0.9.0
[INFO] [stderr]     Checking unic-char-range v0.9.0
[INFO] [stderr]    Compiling unescape v0.1.0
[INFO] [stderr]    Compiling jrsonnet-stdlib v0.3.2
[INFO] [stderr]     Checking deunicode v0.4.3
[INFO] [stderr]     Checking yansi-term v0.1.2
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking closure v0.3.0
[INFO] [stderr]     Checking humansize v1.1.0
[INFO] [stderr]     Checking fs_extra v1.2.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking unic-ucd-version v0.9.0
[INFO] [stderr]     Checking unic-char-property v0.9.0
[INFO] [stderr]     Checking annotate-snippets v0.9.0
[INFO] [stderr]    Compiling libc v0.2.91
[INFO] [stderr]     Checking slug v0.1.4
[INFO] [stderr]     Checking phf_shared v0.8.0
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking xattr v0.2.2
[INFO] [stderr]     Checking filetime v0.2.14
[INFO] [stderr]     Checking bstr v0.2.15
[INFO] [stderr]     Checking unic-ucd-segment v0.9.0
[INFO] [stderr]    Compiling peg-macros v0.6.3
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking uritemplate-next v0.2.0
[INFO] [stderr]    Compiling parse-zoneinfo v0.3.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking publicsuffix v1.5.6
[INFO] [stderr]     Checking tar v0.4.33
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking unic-segment v0.9.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking globset v0.4.6
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking ignore v0.4.17
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling chrono-tz v0.5.3
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking globwalk v0.8.1
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling peg v0.6.3
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling valico v3.6.0
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling structdump-derive v0.1.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stdout] error[E0433]: failed to resolve: could not find `export` in `syn`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/structdump-derive-0.1.2/src/lib.rs:22:60
[INFO] [stdout]    |
[INFO] [stdout] 22 |                 let name = Ident::new(&format!("f{}", i), syn::export::Span::call_site());
[INFO] [stdout]    |                                                                        ^^^^ not found in `syn::export`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 1  | use proc_macro2::Span;
[INFO] [stdout]    |
[INFO] [stdout] 1  | use proc_macro::Span;
[INFO] [stdout]    |
[INFO] [stdout] 1  | use proc_macro::bridge::server::Span;
[INFO] [stdout]    |
[INFO] [stdout] 1  | use quote::__private::Span;
[INFO] [stdout]    |
[INFO] [stdout]      and 1 other candidate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `export` in `syn`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/structdump-derive-0.1.2/src/lib.rs:53:60
[INFO] [stdout]    |
[INFO] [stdout] 53 |                 let name = Ident::new(&format!("f{}", i), syn::export::Span::call_site());
[INFO] [stdout]    |                                                                        ^^^^ not found in `syn::export`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 1  | use proc_macro2::Span;
[INFO] [stdout]    |
[INFO] [stdout] 1  | use proc_macro::Span;
[INFO] [stdout]    |
[INFO] [stdout] 1  | use proc_macro::bridge::server::Span;
[INFO] [stdout]    |
[INFO] [stdout] 1  | use quote::__private::Span;
[INFO] [stdout]    |
[INFO] [stdout]      and 1 other candidate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `structdump-derive`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "2f4e981db7217cd8131c25df580676c354d44cd0c459f701ca6f684e773fd66f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f4e981db7217cd8131c25df580676c354d44cd0c459f701ca6f684e773fd66f", kill_on_drop: false }`
[INFO] [stdout] 2f4e981db7217cd8131c25df580676c354d44cd0c459f701ca6f684e773fd66f