[INFO] fetching crate kct_package 0.2.0...
[INFO] checking kct_package-0.2.0 against try#9c1dcf141bc0875407c4eb36972857bd3db713e2 for pr-81863
[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 9c1dcf141bc0875407c4eb36972857bd3db713e2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "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" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "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" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded yansi-term v0.1.2
[INFO] [stderr]   Downloaded globwalk v0.8.1
[INFO] [stderr]   Downloaded tera v1.6.1
[INFO] [stderr]   Downloaded json-pointer v0.3.4
[INFO] [stderr]   Downloaded annotate-snippets v0.9.0
[INFO] [stderr]   Downloaded parse-zoneinfo v0.3.0
[INFO] [stderr]   Downloaded chrono-tz v0.5.3
[INFO] [stderr]   Downloaded closure v0.3.0
[INFO] [stderr]   Downloaded jrsonnet-stdlib v0.3.2
[INFO] [stderr]   Downloaded uritemplate v0.1.2
[INFO] [stderr]   Downloaded valico v3.5.0
[INFO] [stderr]   Downloaded structdump v0.1.2
[INFO] [stderr]   Downloaded structdump-derive v0.1.2
[INFO] [stderr]   Downloaded jrsonnet-parser v0.3.2
[INFO] [stderr]   Downloaded kct_helper v0.2.0
[INFO] [stderr]   Downloaded jrsonnet-evaluator v0.3.2
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3ceeff1c8b61eae006abf1df7bb08481da3a792006efea7620a1db0e87a25704
[INFO] running `Command { std: "docker" "start" "-a" "3ceeff1c8b61eae006abf1df7bb08481da3a792006efea7620a1db0e87a25704", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ceeff1c8b61eae006abf1df7bb08481da3a792006efea7620a1db0e87a25704", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ceeff1c8b61eae006abf1df7bb08481da3a792006efea7620a1db0e87a25704", kill_on_drop: false }`
[INFO] [stdout] 3ceeff1c8b61eae006abf1df7bb08481da3a792006efea7620a1db0e87a25704
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed8b1383998072e23456d9ac86833152bb28eae206ea32461d8815e866d5dba2
[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" "ed8b1383998072e23456d9ac86833152bb28eae206ea32461d8815e866d5dba2", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling peg-runtime v0.6.3
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling unescape v0.1.0
[INFO] [stderr]    Compiling structdump v0.1.2
[INFO] [stderr]    Compiling byteorder v1.4.2
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling jrsonnet-stdlib v0.3.2
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking yansi-term v0.1.2
[INFO] [stderr]     Checking closure v0.3.0
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking pathdiff v0.2.0
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking fs_extra v1.2.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking tinyvec v1.1.1
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking form_urlencoded v1.0.0
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling libc v0.2.85
[INFO] [stderr]     Checking annotate-snippets v0.9.0
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking filetime v0.2.14
[INFO] [stderr]     Checking xattr v0.2.2
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling peg-macros v0.6.3
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking tar v0.4.32
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking bstr v0.2.15
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking unicode-normalization v0.1.16
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking uritemplate v0.1.2
[INFO] [stderr]     Checking idna v0.2.1
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling valico v3.5.0
[INFO] [stderr]    Compiling peg v0.6.3
[INFO] [stderr]    Compiling parse-zoneinfo v0.3.0
[INFO] [stderr]     Checking url v2.2.0
[INFO] [stderr]     Checking globset v0.4.6
[INFO] [stderr]     Checking publicsuffix v1.5.4
[INFO] [stderr]     Checking ignore v0.4.17
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling structdump-derive v0.1.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[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" "ed8b1383998072e23456d9ac86833152bb28eae206ea32461d8815e866d5dba2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed8b1383998072e23456d9ac86833152bb28eae206ea32461d8815e866d5dba2", kill_on_drop: false }`
[INFO] [stdout] ed8b1383998072e23456d9ac86833152bb28eae206ea32461d8815e866d5dba2