[INFO] fetching crate serde_single_or_vec 1.0.1...
[INFO] testing serde_single_or_vec-1.0.1 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate serde_single_or_vec 1.0.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate serde_single_or_vec 1.0.1 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_single_or_vec 1.0.1
[INFO] finished tweaking crates.io crate serde_single_or_vec 1.0.1
[INFO] tweaked toml for crates.io crate serde_single_or_vec 1.0.1 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9b511b85aba66326fc960e7ffaba7374319c6a5c7a9a9282551e0e45197df21b
[INFO] running `Command { std: "docker" "start" "-a" "9b511b85aba66326fc960e7ffaba7374319c6a5c7a9a9282551e0e45197df21b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b511b85aba66326fc960e7ffaba7374319c6a5c7a9a9282551e0e45197df21b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b511b85aba66326fc960e7ffaba7374319c6a5c7a9a9282551e0e45197df21b", kill_on_drop: false }`
[INFO] [stdout] 9b511b85aba66326fc960e7ffaba7374319c6a5c7a9a9282551e0e45197df21b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 65d09900730ffaf953cbe230d8aac7d2f1b138b7028c1ba2231101386511e479
[INFO] running `Command { std: "docker" "start" "-a" "65d09900730ffaf953cbe230d8aac7d2f1b138b7028c1ba2231101386511e479", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling serde_single_or_vec v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0603]: module `private` is private
[INFO] [stdout]    --> src/lib.rs:183:5
[INFO] [stdout]     |
[INFO] [stdout] 183 |     private::de::{Content, ContentRefDeserializer},
[INFO] [stdout]     |     ^^^^^^^ private module
[INFO] [stdout]     |
[INFO] [stdout] note: the module `private` is defined here
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde-1.0.126/src/lib.rs:277:5
[INFO] [stdout]     |
[INFO] [stdout] 277 | use self::__private as private;
[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 `serde_single_or_vec`
[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" "65d09900730ffaf953cbe230d8aac7d2f1b138b7028c1ba2231101386511e479", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65d09900730ffaf953cbe230d8aac7d2f1b138b7028c1ba2231101386511e479", kill_on_drop: false }`
[INFO] [stdout] 65d09900730ffaf953cbe230d8aac7d2f1b138b7028c1ba2231101386511e479