[INFO] cloning repository https://github.com/tcr/rust-acorn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tcr/rust-acorn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftcr%2Frust-acorn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftcr%2Frust-acorn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 18da0981a78f94da2c35afbede7f199e26327d18
[INFO] checking tcr/rust-acorn against 1.55.0 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftcr%2Frust-acorn" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tcr/rust-acorn on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tcr/rust-acorn
[INFO] finished tweaking git repo https://github.com/tcr/rust-acorn
[INFO] tweaked toml for git repo https://github.com/tcr/rust-acorn written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/tcr/rust-acorn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 238a89a70088058993786d98bfb1a01be6a94e64947e8c4b8a7fe6d3a77c993c
[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" "238a89a70088058993786d98bfb1a01be6a94e64947e8c4b8a7fe6d3a77c993c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "238a89a70088058993786d98bfb1a01be6a94e64947e8c4b8a7fe6d3a77c993c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "238a89a70088058993786d98bfb1a01be6a94e64947e8c4b8a7fe6d3a77c993c", kill_on_drop: false }`
[INFO] [stdout] 238a89a70088058993786d98bfb1a01be6a94e64947e8c4b8a7fe6d3a77c993c
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05fcaa30139c75bdebed2d089a4c7ef39bcc7157c2fdc9ec31038dc3cb7f5197
[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" "05fcaa30139c75bdebed2d089a4c7ef39bcc7157c2fdc9ec31038dc3cb7f5197", kill_on_drop: false }`
[INFO] [stderr]     Checking acorn v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: incorrect unicode escape sequence
[INFO] [stdout]    --> src/acorn.rs:992:38
[INFO] [stdout]     |
[INFO] [stdout] 992 |                     98 => {out.push('\u0008');;
[INFO] [stdout]     |                                      ^^^---
[INFO] [stdout]     |                                      |
[INFO] [stdout]     |                                      help: format of unicode escape sequences uses braces: `\u{0008}`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: incorrect unicode escape sequence
[INFO] [stdout]    --> src/acorn.rs:994:39
[INFO] [stdout]     |
[INFO] [stdout] 994 |                     118 => {out.push('\u000b');;
[INFO] [stdout]     |                                       ^^^---
[INFO] [stdout]     |                                       |
[INFO] [stdout]     |                                       help: format of unicode escape sequences uses braces: `\u{000b}`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: incorrect unicode escape sequence
[INFO] [stdout]    --> src/acorn.rs:996:39
[INFO] [stdout]     |
[INFO] [stdout] 996 |                     102 => {out.push('\u000c');;
[INFO] [stdout]     |                                       ^^^---
[INFO] [stdout]     |                                       |
[INFO] [stdout]     |                                       help: format of unicode escape sequences uses braces: `\u{000c}`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: incorrect unicode escape sequence
[INFO] [stdout]    --> src/acorn.rs:998:38
[INFO] [stdout]     |
[INFO] [stdout] 998 |                     48 => {out.push('\u0000');;
[INFO] [stdout]     |                                      ^^^---
[INFO] [stdout]     |                                      |
[INFO] [stdout]     |                                      help: format of unicode escape sequences uses braces: `\u{0000}`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `|`
[INFO] [stdout]   --> src/acorn.rs:80:21
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub fn exec (regex: |arg:&str| -> bool, val:&str ) -> Option<Box<Vec<String>>> {
[INFO] [stdout]    |                     ^ expected type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `|`
[INFO] [stdout]    --> src/acorn.rs:104:21
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub fn test (regex: |arg:&str| -> bool, val:&str ) -> bool {
[INFO] [stdout]     |                     ^ expected type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `|`
[INFO] [stdout]    --> src/acorn.rs:246:23
[INFO] [stdout]     |
[INFO] [stdout] 246 | const isReservedWord3:|arg:&str|:'static -> bool = predicate_0; 
[INFO] [stdout]     |                       ^ expected type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `serialize`
[INFO] [stdout]   --> src/main.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | extern crate serialize;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `acorn` due to 9 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: incorrect unicode escape sequence
[INFO] [stdout]    --> src/acorn.rs:992:38
[INFO] [stdout]     |
[INFO] [stdout] 992 |                     98 => {out.push('\u0008');;
[INFO] [stdout]     |                                      ^^^---
[INFO] [stdout]     |                                      |
[INFO] [stdout]     |                                      help: format of unicode escape sequences uses braces: `\u{0008}`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: incorrect unicode escape sequence
[INFO] [stdout]    --> src/acorn.rs:994:39
[INFO] [stdout]     |
[INFO] [stdout] 994 |                     118 => {out.push('\u000b');;
[INFO] [stdout]     |                                       ^^^---
[INFO] [stdout]     |                                       |
[INFO] [stdout]     |                                       help: format of unicode escape sequences uses braces: `\u{000b}`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: incorrect unicode escape sequence
[INFO] [stdout]    --> src/acorn.rs:996:39
[INFO] [stdout]     |
[INFO] [stdout] 996 |                     102 => {out.push('\u000c');;
[INFO] [stdout]     |                                       ^^^---
[INFO] [stdout]     |                                       |
[INFO] [stdout]     |                                       help: format of unicode escape sequences uses braces: `\u{000c}`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: incorrect unicode escape sequence
[INFO] [stdout]    --> src/acorn.rs:998:38
[INFO] [stdout]     |
[INFO] [stdout] 998 |                     48 => {out.push('\u0000');;
[INFO] [stdout]     |                                      ^^^---
[INFO] [stdout]     |                                      |
[INFO] [stdout]     |                                      help: format of unicode escape sequences uses braces: `\u{0000}`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `|`
[INFO] [stdout]   --> src/acorn.rs:80:21
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub fn exec (regex: |arg:&str| -> bool, val:&str ) -> Option<Box<Vec<String>>> {
[INFO] [stdout]    |                     ^ expected type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `|`
[INFO] [stdout]    --> src/acorn.rs:104:21
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub fn test (regex: |arg:&str| -> bool, val:&str ) -> bool {
[INFO] [stdout]     |                     ^ expected type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `|`
[INFO] [stdout]    --> src/acorn.rs:246:23
[INFO] [stdout]     |
[INFO] [stdout] 246 | const isReservedWord3:|arg:&str|:'static -> bool = predicate_0; 
[INFO] [stdout]     |                       ^ expected type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `serialize`
[INFO] [stdout]   --> src/main.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | extern crate serialize;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "05fcaa30139c75bdebed2d089a4c7ef39bcc7157c2fdc9ec31038dc3cb7f5197", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05fcaa30139c75bdebed2d089a4c7ef39bcc7157c2fdc9ec31038dc3cb7f5197", kill_on_drop: false }`
[INFO] [stdout] 05fcaa30139c75bdebed2d089a4c7ef39bcc7157c2fdc9ec31038dc3cb7f5197
