[INFO] crate gob 0.1.0 is already in cache
[INFO] checking gob-0.1.0 against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] extracting crate gob 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate gob 0.1.0 on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate gob 0.1.0
[INFO] finished tweaking crates.io crate gob 0.1.0
[INFO] tweaked toml for crates.io crate gob 0.1.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 90331626e38a961b5d18093085c2b37ef9e28330ae5d4d3a6cabfa7d209308a4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "90331626e38a961b5d18093085c2b37ef9e28330ae5d4d3a6cabfa7d209308a4"`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking bencher v0.1.5
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]    Compiling serde_derive_internals v0.23.1
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]    Compiling serde_schema_derive v0.0.1
[INFO] [stderr]     Checking quickcheck v0.6.2
[INFO] [stderr]     Checking partial-io v0.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]     Checking serde_schema v0.0.1
[INFO] [stderr]     Checking serde_bytes v0.10.5
[INFO] [stderr]     Checking gob v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: unnecessary braces around block return value
[INFO] [stderr]   --> src/internal/types/struct_type.rs:85:9
[INFO] [stderr]    |
[INFO] [stderr] 85 |         { Type::build().seq_type(None, TypeId::FIELD_TYPE) };
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:1:9
[INFO] [stderr]    |
[INFO] [stderr] 1  | #![deny(warnings)]
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    = note: `#[deny(unused_braces)]` implied by `#[deny(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] error: unnecessary braces around block return value
[INFO] [stderr]   --> src/internal/types/struct_type.rs:85:9
[INFO] [stderr]    |
[INFO] [stderr] 85 |         { Type::build().seq_type(None, TypeId::FIELD_TYPE) };
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:1:9
[INFO] [stderr]    |
[INFO] [stderr] 1  | #![deny(warnings)]
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    = note: `#[deny(unused_braces)]` implied by `#[deny(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] error: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:41:37
[INFO] [stderr]    |
[INFO] [stderr] 41 |                 write!(f, "{}: {}", ::std::error::Error::description(self), msg)
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:1:9
[INFO] [stderr]    |
[INFO] [stderr] 1  | #![deny(warnings)]
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    = note: `#[deny(deprecated)]` implied by `#[deny(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] error: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:41:37
[INFO] [stderr]    |
[INFO] [stderr] 41 |                 write!(f, "{}: {}", ::std::error::Error::description(self), msg)
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:1:9
[INFO] [stderr]    |
[INFO] [stderr] 1  | #![deny(warnings)]
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    = note: `#[deny(deprecated)]` implied by `#[deny(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `gob`.
[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: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `gob`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "90331626e38a961b5d18093085c2b37ef9e28330ae5d4d3a6cabfa7d209308a4"`
[INFO] running `"docker" "rm" "-f" "90331626e38a961b5d18093085c2b37ef9e28330ae5d4d3a6cabfa7d209308a4"`
[INFO] [stdout] 90331626e38a961b5d18093085c2b37ef9e28330ae5d4d3a6cabfa7d209308a4