[INFO] crate yamux 0.4.0 is already in cache
[INFO] checking yamux-0.4.0 against try#f149601db42efe10ece8b284ab681fd4a6fcb89c for pr-68766
[INFO] extracting crate yamux 0.4.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate yamux 0.4.0 on toolchain f149601db42efe10ece8b284ab681fd4a6fcb89c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate yamux 0.4.0
[INFO] finished tweaking crates.io crate yamux 0.4.0
[INFO] tweaked toml for crates.io crate yamux 0.4.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"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" "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" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 355cdbc0fb5400c999a23975a5955cecb4c44347ff013ca987c7eb7c437a1808
[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" "355cdbc0fb5400c999a23975a5955cecb4c44347ff013ca987c7eb7c437a1808"`
[INFO] [stderr]     Checking nohash-hasher v0.1.3
[INFO] [stderr]     Checking futures-channel v0.3.3
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling thiserror-impl v1.0.10
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking criterion-plot v0.4.1
[INFO] [stderr]     Checking async-std v1.5.0
[INFO] [stderr]     Checking quickcheck v0.9.2
[INFO] [stderr]     Checking criterion v0.3.1
[INFO] [stderr]    Compiling futures-macro v0.3.3
[INFO] [stderr]     Checking thiserror v1.0.10
[INFO] [stderr]     Checking futures-util v0.3.3
[INFO] [stderr]     Checking futures-executor v0.3.3
[INFO] [stderr]     Checking futures v0.3.3
[INFO] [stderr]     Checking yamux v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0425]: cannot find value `_0` in this scope
[INFO] [stderr]   --> src/error.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |     #[error("i/o error: {0}")]
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `_0` in this scope
[INFO] [stderr]   --> src/error.rs:23:13
[INFO] [stderr]    |
[INFO] [stderr] 23 |     #[error("decode error: {0}")]
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `_0` in this scope
[INFO] [stderr]    --> src/frame/header.rs:357:13
[INFO] [stderr]     |
[INFO] [stderr] 357 |     #[error("unknown version: {0}")]
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `_0` in this scope
[INFO] [stderr]    --> src/frame/header.rs:361:13
[INFO] [stderr]     |
[INFO] [stderr] 361 |     #[error("unknown frame type: {0}")]
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `_0` in this scope
[INFO] [stderr]    --> src/frame/header.rs:365:43
[INFO] [stderr]     |
[INFO] [stderr] 365 |     #[error("unknown flags type: {:0x}", .0)]
[INFO] [stderr]     |                                           ^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `_0` in this scope
[INFO] [stderr]    --> src/frame/io.rs:205:13
[INFO] [stderr]     |
[INFO] [stderr] 205 |     #[error("i/o error: {0}")]
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `_0` in this scope
[INFO] [stderr]    --> src/frame/io.rs:209:13
[INFO] [stderr]     |
[INFO] [stderr] 209 |     #[error("decode error: {0}")]
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `_0` in this scope
[INFO] [stderr]    --> src/frame/io.rs:213:13
[INFO] [stderr]     |
[INFO] [stderr] 213 |     #[error("frame body is too large ({0})")]
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 8 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0425`.
[INFO] [stderr] error: could not compile `yamux`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0425]: cannot find value `_0` in this scope
[INFO] [stderr]   --> src/error.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |     #[error("i/o error: {0}")]
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `_0` in this scope
[INFO] [stderr]   --> src/error.rs:23:13
[INFO] [stderr]    |
[INFO] [stderr] 23 |     #[error("decode error: {0}")]
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `_0` in this scope
[INFO] [stderr]    --> src/frame/header.rs:357:13
[INFO] [stderr]     |
[INFO] [stderr] 357 |     #[error("unknown version: {0}")]
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `_0` in this scope
[INFO] [stderr]    --> src/frame/header.rs:361:13
[INFO] [stderr]     |
[INFO] [stderr] 361 |     #[error("unknown frame type: {0}")]
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `_0` in this scope
[INFO] [stderr]    --> src/frame/header.rs:365:43
[INFO] [stderr]     |
[INFO] [stderr] 365 |     #[error("unknown flags type: {:0x}", .0)]
[INFO] [stderr]     |                                           ^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `_0` in this scope
[INFO] [stderr]    --> src/frame/io.rs:205:13
[INFO] [stderr]     |
[INFO] [stderr] 205 |     #[error("i/o error: {0}")]
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `_0` in this scope
[INFO] [stderr]    --> src/frame/io.rs:209:13
[INFO] [stderr]     |
[INFO] [stderr] 209 |     #[error("decode error: {0}")]
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `_0` in this scope
[INFO] [stderr]    --> src/frame/io.rs:213:13
[INFO] [stderr]     |
[INFO] [stderr] 213 |     #[error("frame body is too large ({0})")]
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 8 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0425`.
[INFO] [stderr] error: could not compile `yamux`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "355cdbc0fb5400c999a23975a5955cecb4c44347ff013ca987c7eb7c437a1808"`
[INFO] running `"docker" "rm" "-f" "355cdbc0fb5400c999a23975a5955cecb4c44347ff013ca987c7eb7c437a1808"`
[INFO] [stdout] 355cdbc0fb5400c999a23975a5955cecb4c44347ff013ca987c7eb7c437a1808