[INFO] fetching crate ergol 0.0.1...
[INFO] checking ergol-0.0.1 against try#7b3565da729099dbe807466fcd118fb2815986e0 for pr-81789
[INFO] extracting crate ergol 0.0.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate ergol 0.0.1 on toolchain 7b3565da729099dbe807466fcd118fb2815986e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ergol 0.0.1
[INFO] finished tweaking crates.io crate ergol 0.0.1
[INFO] tweaked toml for crates.io crate ergol 0.0.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-macro v0.3.14
[INFO] [stderr]   Downloaded discard v1.0.4
[INFO] [stderr]   Downloaded proc-macro-nested v0.1.7
[INFO] [stderr]   Downloaded siphasher v0.3.5
[INFO] [stderr]   Downloaded futures v0.3.14
[INFO] [stderr]   Downloaded crypto-mac v0.9.1
[INFO] [stderr]   Downloaded standback v0.2.17
[INFO] [stderr]   Downloaded async-trait v0.1.50
[INFO] [stderr]   Downloaded futures-executor v0.3.14
[INFO] [stderr]   Downloaded phf_shared v0.8.0
[INFO] [stderr]   Downloaded geo-types v0.6.2
[INFO] [stderr]   Downloaded time v0.2.26
[INFO] [stderr]   Downloaded stdweb v0.4.20
[INFO] [stderr]   Downloaded postgres-types v0.1.3
[INFO] [stderr]   Downloaded tokio-postgres v0.6.0
[INFO] [stderr]   Downloaded tokio-util v0.4.0
[INFO] [stderr]   Downloaded bytes v0.6.0
[INFO] [stderr]   Downloaded postgres-protocol v0.5.3
[INFO] [stderr]   Downloaded time-macros v0.1.1
[INFO] [stderr]   Downloaded parking_lot_core v0.8.3
[INFO] [stderr]   Downloaded stringprep v0.1.2
[INFO] [stderr]   Downloaded const_fn v0.4.7
[INFO] [stderr]   Downloaded sha1 v0.6.0
[INFO] [stderr]   Downloaded stdweb-internal-runtime v0.1.5
[INFO] [stderr]   Downloaded parking_lot v0.11.1
[INFO] [stderr]   Downloaded tokio v0.3.7
[INFO] [stderr]   Downloaded phf v0.8.0
[INFO] [stderr]   Downloaded geo-types v0.4.3
[INFO] [stderr]   Downloaded hmac v0.9.0
[INFO] [stderr]   Downloaded stdweb-derive v0.5.3
[INFO] [stderr]   Downloaded base-x v0.2.8
[INFO] [stderr]   Downloaded eui48 v0.4.6
[INFO] [stderr]   Downloaded fallible-iterator v0.2.0
[INFO] [stderr]   Downloaded tokio-macros v0.3.2
[INFO] [stderr]   Downloaded approx v0.3.2
[INFO] [stderr]   Downloaded lock_api v0.4.3
[INFO] [stderr]   Downloaded stdweb-internal-macros v0.2.9
[INFO] [stderr]   Downloaded sha2 v0.9.3
[INFO] [stderr]   Downloaded time-macros-impl v0.1.1
[INFO] [stderr]   Downloaded ergol_proc_macro v0.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b808252b5affc9cf541653dc4d19943d3a66e885795c278105cd27a352a87fc
[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" "4b808252b5affc9cf541653dc4d19943d3a66e885795c278105cd27a352a87fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b808252b5affc9cf541653dc4d19943d3a66e885795c278105cd27a352a87fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b808252b5affc9cf541653dc4d19943d3a66e885795c278105cd27a352a87fc", kill_on_drop: false }`
[INFO] [stdout] 4b808252b5affc9cf541653dc4d19943d3a66e885795c278105cd27a352a87fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c851fd314359cd100101c92bc0a4d34fce5050b2db98a0949bd832743695be3
[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" "3c851fd314359cd100101c92bc0a4d34fce5050b2db98a0949bd832743695be3", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking futures-core v0.3.14
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking siphasher v0.3.5
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]    Compiling case v1.0.0
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking lock_api v0.4.3
[INFO] [stderr]     Checking futures-channel v0.3.14
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking stringprep v0.1.2
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking phf_shared v0.8.0
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]    Compiling tokio v0.3.7
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]     Checking generic-array v0.14.4
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.9.1
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking hmac v0.9.0
[INFO] [stderr]     Checking sha2 v0.9.3
[INFO] [stderr]     Checking postgres-protocol v0.5.3
[INFO] [stderr]     Checking postgres-types v0.1.3
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]    Compiling tokio-macros v0.3.2
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]    Compiling ergol_proc_macro v0.0.1
[INFO] [stdout] error[E0432]: unresolved import `syn::export`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ergol_proc_macro-0.0.1/src/ergol.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | use syn::export::TokenStream2;
[INFO] [stdout]   |          ^^^^^^ could not find `export` in `syn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `syn::export`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ergol_proc_macro-0.0.1/src/pgenum.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | use syn::export::TokenStream2;
[INFO] [stdout]   |          ^^^^^^ could not find `export` in `syn`
[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 E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ergol_proc_macro`
[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" "3c851fd314359cd100101c92bc0a4d34fce5050b2db98a0949bd832743695be3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c851fd314359cd100101c92bc0a4d34fce5050b2db98a0949bd832743695be3", kill_on_drop: false }`
[INFO] [stdout] 3c851fd314359cd100101c92bc0a4d34fce5050b2db98a0949bd832743695be3