[INFO] cloning repository https://github.com/amccreight/heapgraph
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/amccreight/heapgraph" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famccreight%2Fheapgraph", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famccreight%2Fheapgraph'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 820c17a6070b838037b91590b697607eac6cb7a4
[INFO] checking amccreight/heapgraph/820c17a6070b838037b91590b697607eac6cb7a4 against master#ff1737bb00913444173658b4e0b274fd79aabf66 for pr-132712-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famccreight%2Fheapgraph" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/amccreight/heapgraph on toolchain ff1737bb00913444173658b4e0b274fd79aabf66
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/amccreight/heapgraph
[INFO] finished tweaking git repo https://github.com/amccreight/heapgraph
[INFO] tweaked toml for git repo https://github.com/amccreight/heapgraph written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/amccreight/heapgraph already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fnv v1.0.5
[INFO] [stderr]   Downloaded lazy_static v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 527f5d2e1122f28a1eb69c8b2aa752b289a6da64c96b0efcaa6ea0d5b8c2bfd4
[INFO] running `Command { std: "docker" "start" "-a" "527f5d2e1122f28a1eb69c8b2aa752b289a6da64c96b0efcaa6ea0d5b8c2bfd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "527f5d2e1122f28a1eb69c8b2aa752b289a6da64c96b0efcaa6ea0d5b8c2bfd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "527f5d2e1122f28a1eb69c8b2aa752b289a6da64c96b0efcaa6ea0d5b8c2bfd4", kill_on_drop: false }`
[INFO] [stdout] 527f5d2e1122f28a1eb69c8b2aa752b289a6da64c96b0efcaa6ea0d5b8c2bfd4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8517c4ab13b081bbaa11c509f21cae8e6e92b6b846d93a7173545ac41dda1b08
[INFO] running `Command { std: "docker" "start" "-a" "8517c4ab13b081bbaa11c509f21cae8e6e92b6b846d93a7173545ac41dda1b08", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking lazy_static v0.2.1
[INFO] [stderr]     Checking fnv v1.0.5
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]     Checking heapgraph_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `at` found for struct `regex::Captures` in the current scope
[INFO] [stdout]    --> src/cc_log.rs:294:64
[INFO] [stdout]     |
[INFO] [stdout] 294 |                     let map = CCLog::atomize_weakmap_addr(caps.at(1).unwrap());
[INFO] [stdout]     |                                                                ^^ method not found in `Captures<'_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `at` found for struct `regex::Captures` in the current scope
[INFO] [stdout]    --> src/cc_log.rs:294:64
[INFO] [stdout]     |
[INFO] [stdout] 294 |                     let map = CCLog::atomize_weakmap_addr(caps.at(1).unwrap());
[INFO] [stdout]     |                                                                ^^ method not found in `Captures<'_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `at` found for struct `regex::Captures` in the current scope
[INFO] [stdout]    --> src/cc_log.rs:295:64
[INFO] [stdout]     |
[INFO] [stdout] 295 |                     let key = CCLog::atomize_weakmap_addr(caps.at(2).unwrap());
[INFO] [stdout]     |                                                                ^^ method not found in `Captures<'_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `at` found for struct `regex::Captures` in the current scope
[INFO] [stdout]    --> src/cc_log.rs:295:64
[INFO] [stdout]     |
[INFO] [stdout] 295 |                     let key = CCLog::atomize_weakmap_addr(caps.at(2).unwrap());
[INFO] [stdout]     |                                                                ^^ method not found in `Captures<'_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `at` found for struct `regex::Captures` in the current scope
[INFO] [stdout]    --> src/cc_log.rs:296:69
[INFO] [stdout]     |
[INFO] [stdout] 296 |                     let delegate = CCLog::atomize_weakmap_addr(caps.at(3).unwrap());
[INFO] [stdout]     |                                                                     ^^ method not found in `Captures<'_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `at` found for struct `regex::Captures` in the current scope
[INFO] [stdout]    --> src/cc_log.rs:296:69
[INFO] [stdout]     |
[INFO] [stdout] 296 |                     let delegate = CCLog::atomize_weakmap_addr(caps.at(3).unwrap());
[INFO] [stdout]     |                                                                     ^^ method not found in `Captures<'_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `at` found for struct `regex::Captures` in the current scope
[INFO] [stdout]    --> src/cc_log.rs:297:64
[INFO] [stdout]     |
[INFO] [stdout] 297 |                     let val = CCLog::atomize_weakmap_addr(caps.at(4).unwrap());
[INFO] [stdout]     |                                                                ^^ method not found in `Captures<'_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `at` found for struct `regex::Captures` in the current scope
[INFO] [stdout]    --> src/cc_log.rs:297:64
[INFO] [stdout]     |
[INFO] [stdout] 297 |                     let val = CCLog::atomize_weakmap_addr(caps.at(4).unwrap());
[INFO] [stdout]     |                                                                ^^ method not found in `Captures<'_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `heapgraph_rust` (bin "heapgraph_rust" test) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `heapgraph_rust` (bin "heapgraph_rust") due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "8517c4ab13b081bbaa11c509f21cae8e6e92b6b846d93a7173545ac41dda1b08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8517c4ab13b081bbaa11c509f21cae8e6e92b6b846d93a7173545ac41dda1b08", kill_on_drop: false }`
[INFO] [stdout] 8517c4ab13b081bbaa11c509f21cae8e6e92b6b846d93a7173545ac41dda1b08