[INFO] updating cached repository https://github.com/Arkweid/stellar-explorer-rust
[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] 5e0dc581fced2e391b27f6c68e2c21a50ca51c93
[INFO] checking Arkweid/stellar-explorer-rust against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArkweid%2Fstellar-explorer-rust" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Arkweid/stellar-explorer-rust on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Arkweid/stellar-explorer-rust
[INFO] finished tweaking git repo https://github.com/Arkweid/stellar-explorer-rust
[INFO] tweaked toml for git repo https://github.com/Arkweid/stellar-explorer-rust written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Arkweid/stellar-explorer-rust already has a lockfile, it will not be regenerated
[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] running `"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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 319aa638ad3d98095adf4cce3eb5bfd036c989a97d1849e596e883cec6af68cb
[INFO] running `"docker" "start" "-a" "319aa638ad3d98095adf4cce3eb5bfd036c989a97d1849e596e883cec6af68cb"`
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling syn v0.15.42
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling cc v1.0.38
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]     Checking ucd-util v0.1.5
[INFO] [stderr]    Compiling serde v1.0.98
[INFO] [stderr]     Checking utf8-ranges v1.0.3
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.17
[INFO] [stderr]     Checking serde v0.8.23
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.17
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking rust-ini v0.13.0
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]    Compiling rand_core v0.4.0
[INFO] [stderr]     Checking rustc-demangle v0.1.15
[INFO] [stderr]    Compiling subtle v2.1.0
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling pkg-config v0.3.15
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking runtime-fmt v0.3.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]     Checking lock_api v0.3.1
[INFO] [stderr]     Checking lock_api v0.2.0
[INFO] [stderr] error[E0433]: failed to resolve: could not find `Position` in `v1`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/runtime-fmt-0.3.0/src/lib.rs:522:39
[INFO] [stderr]     |
[INFO] [stderr] 522 |                         position: v1::Position::At(i),
[INFO] [stderr]     |                                       ^^^^^^^^ could not find `Position` in `v1`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `Position` in `v1`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/runtime-fmt-0.3.0/src/lib.rs:544:39
[INFO] [stderr]     |
[INFO] [stderr] 544 |                         position: v1::Position::At(argument_pos),
[INFO] [stderr]     |                                       ^^^^^^^^ could not find `Position` in `v1`
[INFO] [stderr] 
[INFO] [stderr]     Checking regex-syntax v0.6.10
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.17
[INFO] [stderr]     Checking block-padding v0.1.4
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr] error[E0599]: no method named `is_xid_start` found for type `char` in the current scope
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/runtime-fmt-0.3.0/src/fmt_macros.rs:422:34
[INFO] [stderr]     |
[INFO] [stderr] 422 |             Some(&(pos, c)) if c.is_xid_start() => {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^ method not found in `char`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `is_xid_continue` found for type `char` in the current scope
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/runtime-fmt-0.3.0/src/fmt_macros.rs:431:18
[INFO] [stderr]     |
[INFO] [stderr] 431 |             if c.is_xid_continue() {
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^ method not found in `char`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0433, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0433`.
[INFO] [stderr] error: could not compile `runtime-fmt`.
[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: build failed
[INFO] running `"docker" "inspect" "319aa638ad3d98095adf4cce3eb5bfd036c989a97d1849e596e883cec6af68cb"`
[INFO] running `"docker" "rm" "-f" "319aa638ad3d98095adf4cce3eb5bfd036c989a97d1849e596e883cec6af68cb"`
[INFO] [stdout] 319aa638ad3d98095adf4cce3eb5bfd036c989a97d1849e596e883cec6af68cb