[INFO] cloning repository https://github.com/lrowe/embed-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lrowe/embed-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flrowe%2Fembed-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flrowe%2Fembed-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aa6492b9683f256edcc3b5e125d848d909cad01d
[INFO] checking lrowe/embed-rs against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flrowe%2Fembed-rs" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lrowe/embed-rs on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lrowe/embed-rs
[INFO] finished tweaking git repo https://github.com/lrowe/embed-rs
[INFO] tweaked toml for git repo https://github.com/lrowe/embed-rs written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/lrowe/embed-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded debug_stub_derive v0.3.0
[INFO] [stderr]   Downloaded serde-transcode v1.1.0
[INFO] [stderr]   Downloaded logging-allocator v0.1.1
[INFO] [stderr]   Downloaded flexbuffers v0.1.0
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d71c050bdab6476dfea33dd3f348d4e59eade151c1e0f2e947d864da3b5cda5
[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" "0d71c050bdab6476dfea33dd3f348d4e59eade151c1e0f2e947d864da3b5cda5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d71c050bdab6476dfea33dd3f348d4e59eade151c1e0f2e947d864da3b5cda5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d71c050bdab6476dfea33dd3f348d4e59eade151c1e0f2e947d864da3b5cda5", kill_on_drop: false }`
[INFO] [stdout] 0d71c050bdab6476dfea33dd3f348d4e59eade151c1e0f2e947d864da3b5cda5
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a38843af74c54c376edd588e181e7c259f4a76129d797b923d6e7a1fadb0f3bc
[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" "a38843af74c54c376edd588e181e7c259f4a76129d797b923d6e7a1fadb0f3bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling cc v1.0.52
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]    Compiling lmdb-rkv-sys v0.11.0
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling debug_stub_derive v0.3.0
[INFO] [stderr]     Checking lmdb-rkv v0.14.0
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking serde_json v1.0.52
[INFO] [stderr]     Checking serde-transcode v1.1.0
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling proc-macro-crate v0.1.4
[INFO] [stderr]    Compiling num_enum_derive v0.4.3
[INFO] [stderr]     Checking num_enum v0.4.3
[INFO] [stderr]     Checking flexbuffers v0.1.0
[INFO] [stderr]     Checking embed v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: the trait bound `flexbuffers::Builder: serde::de::Deserialize<'_>` is not satisfied
[INFO] [stdout]     --> src/bin/convert.rs:19:27
[INFO] [stdout]      |
[INFO] [stdout] 19   |                 "json" => serde_json::from_slice(&buf_in)?,
[INFO] [stdout]      |                           ^^^^^^^^^^^^^^^^^^^^^^ the trait `serde::de::Deserialize<'_>` is not implemented for `flexbuffers::Builder`
[INFO] [stdout]      | 
[INFO] [stdout]     ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_json-1.0.52/src/de.rs:2355:8
[INFO] [stdout]      |
[INFO] [stdout] 2355 |     T: de::Deserialize<'a>,
[INFO] [stdout]      |        ------------------- required by this bound in `serde_json::from_slice`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `flexbuffers::Builder: serde::de::Deserialize<'_>` is not satisfied
[INFO] [stdout]   --> src/bin/convert.rs:20:33
[INFO] [stdout]    |
[INFO] [stdout] 20 |                 "flexbuffer" => flexbuffers::from_slice(&buf_in).unwrap(),
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^ the trait `serde::de::Deserialize<'_>` is not implemented for `flexbuffers::Builder`
[INFO] [stdout]    | 
[INFO] [stdout]   ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/flexbuffers-0.1.0/src/lib.rs:73:27
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub fn from_slice<'de, T: Deserialize<'de>>(buf: &'de [u8]) -> Result<T, DeserializationError> {
[INFO] [stdout]    |                           ---------------- required by this bound in `flexbuffers::from_slice`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `flexbuffers::Reader<'_>: serde::ser::Serialize` is not satisfied
[INFO] [stdout]     --> src/bin/convert.rs:28:46
[INFO] [stdout]      |
[INFO] [stdout] 28   |                 "json" => serde_json::to_vec(&reader)?,
[INFO] [stdout]      |                                              ^^^^^^^ the trait `serde::ser::Serialize` is not implemented for `flexbuffers::Reader<'_>`
[INFO] [stdout]      | 
[INFO] [stdout]     ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_json-1.0.52/src/ser.rs:2192:17
[INFO] [stdout]      |
[INFO] [stdout] 2192 |     T: ?Sized + Serialize,
[INFO] [stdout]      |                 --------- required by this bound in `serde_json::to_vec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `flexbuffers::Reader<'_>: serde::ser::Serialize` is not satisfied
[INFO] [stdout]   --> src/bin/convert.rs:29:53
[INFO] [stdout]    |
[INFO] [stdout] 29 |                 "flexbuffer" => flexbuffers::to_vec(&reader).unwrap(),
[INFO] [stdout]    |                                                     ^^^^^^^ the trait `serde::ser::Serialize` is not implemented for `flexbuffers::Reader<'_>`
[INFO] [stdout]    | 
[INFO] [stdout]   ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/flexbuffers-0.1.0/src/lib.rs:67:18
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn to_vec<T: Serialize>(x: T) -> Result<Vec<u8>, SerializationError> {
[INFO] [stdout]    |                  --------- required by this bound in `flexbuffers::to_vec`
[INFO] [stdout]    |
[INFO] [stdout]    = note: required because of the requirements on the impl of `serde::ser::Serialize` for `&flexbuffers::Reader<'_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `embed`
[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] [stdout] error[E0277]: the trait bound `flexbuffers::Builder: serde::de::Deserialize<'_>` is not satisfied
[INFO] [stdout]     --> src/bin/convert.rs:19:27
[INFO] [stdout]      |
[INFO] [stdout] 19   |                 "json" => serde_json::from_slice(&buf_in)?,
[INFO] [stdout]      |                           ^^^^^^^^^^^^^^^^^^^^^^ the trait `serde::de::Deserialize<'_>` is not implemented for `flexbuffers::Builder`
[INFO] [stdout]      | 
[INFO] [stdout]     ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_json-1.0.52/src/de.rs:2355:8
[INFO] [stdout]      |
[INFO] [stdout] 2355 |     T: de::Deserialize<'a>,
[INFO] [stdout]      |        ------------------- required by this bound in `serde_json::from_slice`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `flexbuffers::Builder: serde::de::Deserialize<'_>` is not satisfied
[INFO] [stdout]   --> src/bin/convert.rs:20:33
[INFO] [stdout]    |
[INFO] [stdout] 20 |                 "flexbuffer" => flexbuffers::from_slice(&buf_in).unwrap(),
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^ the trait `serde::de::Deserialize<'_>` is not implemented for `flexbuffers::Builder`
[INFO] [stdout]    | 
[INFO] [stdout]   ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/flexbuffers-0.1.0/src/lib.rs:73:27
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub fn from_slice<'de, T: Deserialize<'de>>(buf: &'de [u8]) -> Result<T, DeserializationError> {
[INFO] [stdout]    |                           ---------------- required by this bound in `flexbuffers::from_slice`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `flexbuffers::Reader<'_>: serde::ser::Serialize` is not satisfied
[INFO] [stdout]     --> src/bin/convert.rs:28:46
[INFO] [stdout]      |
[INFO] [stdout] 28   |                 "json" => serde_json::to_vec(&reader)?,
[INFO] [stdout]      |                                              ^^^^^^^ the trait `serde::ser::Serialize` is not implemented for `flexbuffers::Reader<'_>`
[INFO] [stdout]      | 
[INFO] [stdout]     ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_json-1.0.52/src/ser.rs:2192:17
[INFO] [stdout]      |
[INFO] [stdout] 2192 |     T: ?Sized + Serialize,
[INFO] [stdout]      |                 --------- required by this bound in `serde_json::to_vec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `flexbuffers::Reader<'_>: serde::ser::Serialize` is not satisfied
[INFO] [stdout]   --> src/bin/convert.rs:29:53
[INFO] [stdout]    |
[INFO] [stdout] 29 |                 "flexbuffer" => flexbuffers::to_vec(&reader).unwrap(),
[INFO] [stdout]    |                                                     ^^^^^^^ the trait `serde::ser::Serialize` is not implemented for `flexbuffers::Reader<'_>`
[INFO] [stdout]    | 
[INFO] [stdout]   ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/flexbuffers-0.1.0/src/lib.rs:67:18
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn to_vec<T: Serialize>(x: T) -> Result<Vec<u8>, SerializationError> {
[INFO] [stdout]    |                  --------- required by this bound in `flexbuffers::to_vec`
[INFO] [stdout]    |
[INFO] [stdout]    = note: required because of the requirements on the impl of `serde::ser::Serialize` for `&flexbuffers::Reader<'_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a38843af74c54c376edd588e181e7c259f4a76129d797b923d6e7a1fadb0f3bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a38843af74c54c376edd588e181e7c259f4a76129d797b923d6e7a1fadb0f3bc", kill_on_drop: false }`
[INFO] [stdout] a38843af74c54c376edd588e181e7c259f4a76129d797b923d6e7a1fadb0f3bc