[INFO] fetching crate rs-tiled_json 0.1.0...
[INFO] testing rs-tiled_json-0.1.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate rs-tiled_json 0.1.0 into /workspace/builds/worker-26/source
[INFO] validating manifest of crates.io crate rs-tiled_json 0.1.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rs-tiled_json 0.1.0
[INFO] finished tweaking crates.io crate rs-tiled_json 0.1.0
[INFO] tweaked toml for crates.io crate rs-tiled_json 0.1.0 written to /workspace/builds/worker-26/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 497fbf84889a80abeecf68bae663b3aef2071ce6366470f5ea51dc75d57d1700
[INFO] running `Command { std: "docker" "start" "-a" "497fbf84889a80abeecf68bae663b3aef2071ce6366470f5ea51dc75d57d1700", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "497fbf84889a80abeecf68bae663b3aef2071ce6366470f5ea51dc75d57d1700", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "497fbf84889a80abeecf68bae663b3aef2071ce6366470f5ea51dc75d57d1700", kill_on_drop: false }`
[INFO] [stdout] 497fbf84889a80abeecf68bae663b3aef2071ce6366470f5ea51dc75d57d1700
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f389d3e42f51c5337078197d25c11a2373f0ed6715d48b5293149b3f353d641c
[INFO] running `Command { std: "docker" "start" "-a" "f389d3e42f51c5337078197d25c11a2373f0ed6715d48b5293149b3f353d641c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling itoa v1.0.1
[INFO] [stderr]    Compiling ryu v1.0.9
[INFO] [stderr]    Compiling base64 v0.12.3
[INFO] [stderr]    Compiling miniz_oxide v0.5.1
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling flate2 v1.0.23
[INFO] [stderr]    Compiling rs-tiled_json v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0603]: module `export` is private
[INFO] [stdout]    --> src/layerreader.rs:6:12
[INFO] [stdout]     |
[INFO] [stdout] 6   | use serde::export::TryFrom;
[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-1.0.136/src/lib.rs:276:5
[INFO] [stdout]     |
[INFO] [stdout] 276 | 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 `rs-tiled_json` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "f389d3e42f51c5337078197d25c11a2373f0ed6715d48b5293149b3f353d641c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f389d3e42f51c5337078197d25c11a2373f0ed6715d48b5293149b3f353d641c", kill_on_drop: false }`
[INFO] [stdout] f389d3e42f51c5337078197d25c11a2373f0ed6715d48b5293149b3f353d641c