[INFO] fetching crate rabbithole 0.3.1...
[INFO] testing rabbithole-0.3.1 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate rabbithole 0.3.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate rabbithole 0.3.1 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rabbithole 0.3.1
[INFO] finished tweaking crates.io crate rabbithole 0.3.1
[INFO] tweaked toml for crates.io crate rabbithole 0.3.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1051e395020dbb9516db62ba0dc717164f2242705f8fcc05edc6e1cab563ad42
[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" "1051e395020dbb9516db62ba0dc717164f2242705f8fcc05edc6e1cab563ad42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1051e395020dbb9516db62ba0dc717164f2242705f8fcc05edc6e1cab563ad42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1051e395020dbb9516db62ba0dc717164f2242705f8fcc05edc6e1cab563ad42", kill_on_drop: false }`
[INFO] [stdout] 1051e395020dbb9516db62ba0dc717164f2242705f8fcc05edc6e1cab563ad42
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 31583adabde3a3cabed5278f3cb4ca452214ebe60c1cc24c01fbec0239d5d071
[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" "31583adabde3a3cabed5278f3cb4ca452214ebe60c1cc24c01fbec0239d5d071", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling frunk_core v0.3.2
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling strum v0.16.0
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling base64 v0.11.0
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling tinyvec v1.3.1
[INFO] [stderr]    Compiling unicode-bidi v0.3.5
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling pest v2.0.2
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling http v0.1.21
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling pest_meta v2.0.3
[INFO] [stderr]    Compiling pest_generator v2.0.0
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling frunk_proc_macro_helpers v0.0.5
[INFO] [stderr]    Compiling url v2.1.1
[INFO] [stderr]    Compiling pest_derive v2.0.1
[INFO] [stderr]    Compiling frunk_proc_macros_impl v0.0.5
[INFO] [stderr]    Compiling frunk_derives v0.3.2
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling frunk_proc_macros v0.0.5
[INFO] [stderr]    Compiling frunk v0.3.2
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling strum_macros v0.16.0
[INFO] [stderr]    Compiling thiserror v1.0.26
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling rsql-rs v0.2.0
[INFO] [stderr]    Compiling rabbithole v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0603]: module `export` is private
[INFO] [stdout]    --> src/model/link.rs:6:12
[INFO] [stdout]     |
[INFO] [stdout] 6   | use serde::export::Formatter;
[INFO] [stdout]     |            ^^^^^^ private module
[INFO] [stdout]     |
[INFO] [stdout] note: the module `export` is defined here
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde-1.0.127/src/lib.rs:275:5
[INFO] [stdout]     |
[INFO] [stdout] 275 | use self::__private as export;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0603`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rabbithole` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "31583adabde3a3cabed5278f3cb4ca452214ebe60c1cc24c01fbec0239d5d071", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31583adabde3a3cabed5278f3cb4ca452214ebe60c1cc24c01fbec0239d5d071", kill_on_drop: false }`
[INFO] [stdout] 31583adabde3a3cabed5278f3cb4ca452214ebe60c1cc24c01fbec0239d5d071