[INFO] updating cached repository https://github.com/daogangtang/learn-libp2p
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5af80970091694cf447984cdcdcedf270a9d0702
[INFO] checking daogangtang/learn-libp2p against try#f149601db42efe10ece8b284ab681fd4a6fcb89c for pr-68766
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaogangtang%2Flearn-libp2p" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/daogangtang/learn-libp2p on toolchain f149601db42efe10ece8b284ab681fd4a6fcb89c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/daogangtang/learn-libp2p
[INFO] removed path dependency libp2p from git repo https://github.com/daogangtang/learn-libp2p
[INFO] finished tweaking git repo https://github.com/daogangtang/learn-libp2p
[INFO] tweaked toml for git repo https://github.com/daogangtang/learn-libp2p written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/daogangtang/learn-libp2p already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: dependency (libp2p) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-2/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[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] warning: dependency (libp2p) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 590a75571881eb9a09be78ca051d21a0a2efd43c8545916bd703506b3100a532
[INFO] running `"docker" "start" "-a" "590a75571881eb9a09be78ca051d21a0a2efd43c8545916bd703506b3100a532"`
[INFO] [stderr] warning: dependency (libp2p) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling anyhow v1.0.26
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling bytes v0.5.4
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling multimap v0.8.0
[INFO] [stderr]     Checking futures-core v0.3.3
[INFO] [stderr]     Checking futures-sink v0.3.3
[INFO] [stderr]     Checking futures-io v0.3.3
[INFO] [stderr]     Checking futures-task v0.3.3
[INFO] [stderr]     Checking untrusted v0.7.0
[INFO] [stderr]     Checking subtle v2.2.2
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking zeroize v1.1.0
[INFO] [stderr]     Checking bs58 v0.3.0
[INFO] [stderr]     Checking futures-timer v2.0.2
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.58
[INFO] [stderr]     Checking pin-project-lite v0.1.4
[INFO] [stderr]    Compiling bumpalo v3.1.2
[INFO] [stderr]    Compiling wasm-bindgen v0.2.58
[INFO] [stderr]     Checking once_cell v1.3.1
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]     Checking nohash-hasher v0.1.3
[INFO] [stderr]     Checking parity-send-wrapper v0.1.0
[INFO] [stderr]     Checking ipnet v2.2.0
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]    Compiling ring v0.16.11
[INFO] [stderr]    Compiling clear_on_drop v0.2.3
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking futures-channel v0.3.3
[INFO] [stderr]    Compiling hashbrown v0.6.3
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]     Checking quicksink v0.1.1
[INFO] [stderr]     Checking miniz_oxide v0.3.6
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]     Checking tokio v0.2.11
[INFO] [stderr]     Checking http v0.2.0
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking parking_lot_core v0.7.0
[INFO] [stderr]     Checking async-task v1.3.1
[INFO] [stderr]     Checking get_if_addrs v0.5.3
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling which v3.1.0
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking dns-parser v0.8.0
[INFO] [stderr]    Compiling snow v0.6.2
[INFO] [stderr]     Checking kv-log-macro v1.0.4
[INFO] [stderr]     Checking uint v0.8.2
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking parking_lot v0.10.0
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking stream-cipher v0.3.2
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking crossbeam-channel v0.4.0
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]     Checking cuckoofilter v0.3.2
[INFO] [stderr]     Checking curve25519-dalek v2.0.0
[INFO] [stderr]     Checking sha2 v0.8.1
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking sha3 v0.8.2
[INFO] [stderr]     Checking aes-soft v0.3.3
[INFO] [stderr]     Checking twofish v0.2.0
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]     Checking blake2 v0.8.1
[INFO] [stderr]    Compiling curve25519-dalek v1.2.3
[INFO] [stderr]     Checking ctr v0.3.2
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]    Compiling petgraph v0.5.0
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking hmac-drbg v0.2.0
[INFO] [stderr]     Checking aes-ctr v0.3.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking ed25519-dalek v1.0.0-pre.3
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking libsecp256k1 v0.3.4
[INFO] [stderr]     Checking tokio-stdin-stdout v0.1.5
[INFO] [stderr]     Checking async-std v1.5.0
[INFO] [stderr]     Checking webpki v0.21.2
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]     Checking x25519-dalek v0.5.2
[INFO] [stderr]     Checking webpki-roots v0.17.0
[INFO] [stderr]     Checking rustls v0.16.0
[INFO] [stderr]     Checking webpki-roots v0.18.0
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.58
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling pin-project-internal v0.4.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.10
[INFO] [stderr]    Compiling asn1_der_derive v0.1.2
[INFO] [stderr]    Compiling libp2p-core-derive v0.15.0
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.58
[INFO] [stderr]     Checking asn1_der v0.6.3
[INFO] [stderr]    Compiling futures-macro v0.3.3
[INFO] [stderr]    Compiling const-random-macro v0.1.8
[INFO] [stderr]     Checking thiserror v1.0.10
[INFO] [stderr]     Checking const-random v0.1.8
[INFO] [stderr]     Checking ahash v0.2.18
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.58
[INFO] [stderr]     Checking pin-project v0.4.8
[INFO] [stderr]     Checking futures-util v0.3.3
[INFO] [stderr]     Checking lru v0.4.3
[INFO] [stderr]    Compiling prost v0.6.1
[INFO] [stderr]    Compiling prost-types v0.6.1
[INFO] [stderr]     Checking js-sys v0.3.35
[INFO] [stderr]     Checking futures-executor v0.3.3
[INFO] [stderr]     Checking futures v0.3.3
[INFO] [stderr]     Checking futures_codec v0.3.4
[INFO] [stderr]     Checking rw-stream-sink v0.2.1
[INFO] [stderr]     Checking wasm-timer v0.2.4
[INFO] [stderr]     Checking yamux v0.4.2
[INFO] [stderr]     Checking soketto v0.3.2
[INFO] [stderr]     Checking async-tls v0.6.0
[INFO] [stderr]     Checking unsigned-varint v0.3.0
[INFO] [stderr] error[E0425]: cannot find value `_0` in this scope
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/soketto-0.3.2/src/base.rs:544:13
[INFO] [stderr]     |
[INFO] [stderr] 544 |     #[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]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/soketto-0.3.2/src/base.rs:564:13
[INFO] [stderr]     |
[INFO] [stderr] 564 |     #[error("invalid reserved bit: {0}")]
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `_0` in this scope
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/soketto-0.3.2/src/handshake.rs:133:13
[INFO] [stderr]     |
[INFO] [stderr] 133 |     #[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]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/soketto-0.3.2/src/handshake.rs:145:13
[INFO] [stderr]     |
[INFO] [stderr] 145 |     #[error("header {0} not found")]
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `_0` in this scope
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/soketto-0.3.2/src/handshake.rs:149:13
[INFO] [stderr]     |
[INFO] [stderr] 149 |     #[error("header {0} had an unexpected value")]
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `_0` in this scope
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/soketto-0.3.2/src/handshake.rs:165:13
[INFO] [stderr]     |
[INFO] [stderr] 165 |     #[error("extension error: {0}")]
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `_0` in this scope
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/yamux-0.4.2/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]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/soketto-0.3.2/src/handshake.rs:169:13
[INFO] [stderr]     |
[INFO] [stderr] 169 |     #[error("http parser error: {0}")]
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `_0` in this scope
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/yamux-0.4.2/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]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/soketto-0.3.2/src/handshake.rs:173:13
[INFO] [stderr]     |
[INFO] [stderr] 173 |     #[error("utf-8 decoding error: {0}")]
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `_0` in this scope
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/soketto-0.3.2/src/connection.rs:544:13
[INFO] [stderr]     |
[INFO] [stderr] 544 |     #[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]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/soketto-0.3.2/src/connection.rs:548:13
[INFO] [stderr]     |
[INFO] [stderr] 548 |     #[error("codec error: {0}")]
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `_0` in this scope
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/yamux-0.4.2/src/frame/header.rs:389:13
[INFO] [stderr]     |
[INFO] [stderr] 389 |     #[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]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/yamux-0.4.2/src/frame/header.rs:393:13
[INFO] [stderr]     |
[INFO] [stderr] 393 |     #[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]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/yamux-0.4.2/src/frame/header.rs:397:43
[INFO] [stderr]     |
[INFO] [stderr] 397 |     #[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]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/yamux-0.4.2/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]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/soketto-0.3.2/src/connection.rs:552:13
[INFO] [stderr]     |
[INFO] [stderr] 552 |     #[error("extension error: {0}")]
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `_0` in this scope
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/soketto-0.3.2/src/connection.rs:556:13
[INFO] [stderr]     |
[INFO] [stderr] 556 |     #[error("unexpected opcode: {0}")]
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `_0` in this scope
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/yamux-0.4.2/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]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/soketto-0.3.2/src/connection.rs:560:13
[INFO] [stderr]     |
[INFO] [stderr] 560 |     #[error("utf-8 opcode: {0}")]
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `_0` in this scope
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/yamux-0.4.2/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]     Checking parity-multihash v0.2.2
[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: aborting due to 13 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0425`.
[INFO] [stderr] error: could not compile `soketto`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "590a75571881eb9a09be78ca051d21a0a2efd43c8545916bd703506b3100a532"`
[INFO] running `"docker" "rm" "-f" "590a75571881eb9a09be78ca051d21a0a2efd43c8545916bd703506b3100a532"`
[INFO] [stdout] 590a75571881eb9a09be78ca051d21a0a2efd43c8545916bd703506b3100a532