[INFO] fetching crate lta_async 0.2.0...
[INFO] checking lta_async-0.2.0 against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] extracting crate lta_async 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate lta_async 0.2.0 on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lta_async 0.2.0
[INFO] finished tweaking crates.io crate lta_async 0.2.0
[INFO] tweaked toml for crates.io crate lta_async 0.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "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] caf6cbe7b74202800a4a30a761b2617ad1d092b6e7ae671f14337a82a388d27a
[INFO] running `Command { std: "docker" "start" "-a" "caf6cbe7b74202800a4a30a761b2617ad1d092b6e7ae671f14337a82a388d27a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "caf6cbe7b74202800a4a30a761b2617ad1d092b6e7ae671f14337a82a388d27a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "caf6cbe7b74202800a4a30a761b2617ad1d092b6e7ae671f14337a82a388d27a", kill_on_drop: false }`
[INFO] [stdout] caf6cbe7b74202800a4a30a761b2617ad1d092b6e7ae671f14337a82a388d27a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ad112d1cf1b673d5697530561d12dd13c24c1025b9386efbc558da3baebe45f
[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" "0ad112d1cf1b673d5697530561d12dd13c24c1025b9386efbc558da3baebe45f", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]    Compiling openssl-sys v0.9.60
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking unicase v2.6.0
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking encoding_rs v0.8.28
[INFO] [stderr]     Checking form_urlencoded v1.0.0
[INFO] [stderr]     Checking futures-task v0.3.12
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]     Checking url v2.2.0
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking tracing v0.1.23
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking futures-util v0.3.12
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling openssl v0.10.32
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling pin-project-internal v1.0.5
[INFO] [stderr]    Compiling serde_repr v0.1.6
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking pin-project v1.0.5
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking hyper v0.13.10
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking serde_json v1.0.62
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking reqwest v0.10.10
[INFO] [stderr]     Checking lta_utils_commons v0.2.0
[INFO] [stdout] error[E0603]: module `export` is private
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lta_utils_commons-0.2.0/src/lib.rs:163:16
[INFO] [stdout]     |
[INFO] [stdout] 163 |     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-1.0.123/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 `lta_utils_commons`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "0ad112d1cf1b673d5697530561d12dd13c24c1025b9386efbc558da3baebe45f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ad112d1cf1b673d5697530561d12dd13c24c1025b9386efbc558da3baebe45f", kill_on_drop: false }`
[INFO] [stdout] 0ad112d1cf1b673d5697530561d12dd13c24c1025b9386efbc558da3baebe45f