[INFO] fetching crate acorn 1.0.0...
[INFO] checking acorn-1.0.0 against try#81275a1445c7502a974118e0c69b795ab60be991 for pr-80243
[INFO] extracting crate acorn 1.0.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate acorn 1.0.0 on toolchain 81275a1445c7502a974118e0c69b795ab60be991
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate acorn 1.0.0
[INFO] finished tweaking crates.io crate acorn 1.0.0
[INFO] tweaked toml for crates.io crate acorn 1.0.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ce31ac3a98b28a1cc94da8c6066fa0d0ed936bfb48933809c4f79baecc823487
[INFO] running `Command { std: "docker" "start" "-a" "ce31ac3a98b28a1cc94da8c6066fa0d0ed936bfb48933809c4f79baecc823487", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce31ac3a98b28a1cc94da8c6066fa0d0ed936bfb48933809c4f79baecc823487", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce31ac3a98b28a1cc94da8c6066fa0d0ed936bfb48933809c4f79baecc823487", kill_on_drop: false }`
[INFO] [stdout] ce31ac3a98b28a1cc94da8c6066fa0d0ed936bfb48933809c4f79baecc823487
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=forbid" "-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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 58c8f95b816741b284118efe1bb467117fb5dbe7980c16df99f90f4c27b23f0a
[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" "58c8f95b816741b284118efe1bb467117fb5dbe7980c16df99f90f4c27b23f0a", 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: 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: 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`
[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] [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" "58c8f95b816741b284118efe1bb467117fb5dbe7980c16df99f90f4c27b23f0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58c8f95b816741b284118efe1bb467117fb5dbe7980c16df99f90f4c27b23f0a", kill_on_drop: false }`
[INFO] [stdout] 58c8f95b816741b284118efe1bb467117fb5dbe7980c16df99f90f4c27b23f0a