[INFO] crate monilog 0.1.1 is already in cache
[INFO] testing monilog-0.1.1 against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] extracting crate monilog 0.1.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate monilog 0.1.1 on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate monilog 0.1.1
[INFO] finished tweaking crates.io crate monilog 0.1.1
[INFO] tweaked toml for crates.io crate monilog 0.1.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1afcf706e34c171917d1f86bc6a4bc2a3f349ae5f7bceb112735d266cb84e55f
[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" "1afcf706e34c171917d1f86bc6a4bc2a3f349ae5f7bceb112735d266cb84e55f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1afcf706e34c171917d1f86bc6a4bc2a3f349ae5f7bceb112735d266cb84e55f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1afcf706e34c171917d1f86bc6a4bc2a3f349ae5f7bceb112735d266cb84e55f", kill_on_drop: false }`
[INFO] [stdout] 1afcf706e34c171917d1f86bc6a4bc2a3f349ae5f7bceb112735d266cb84e55f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 79887ac889f4018f3e5114fbcde965a18c53fc851a9e28b9f6c6050c9f1957ed
[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" "79887ac889f4018f3e5114fbcde965a18c53fc851a9e28b9f6c6050c9f1957ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling aho-corasick v0.7.13
[INFO] [stderr]    Compiling dirs-sys v0.3.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling term v0.6.1
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling monilog v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `at` found for reference `&regex::Captures<'_>` in the current scope
[INFO] [stdout]   --> src/main.rs:93:48
[INFO] [stdout]    |
[INFO] [stdout] 93 |                         print!("{} ", captures.at(1).unwrap());
[INFO] [stdout]    |                                                ^^ method not found in `&regex::Captures<'_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `at` found for reference `&regex::Captures<'_>` in the current scope
[INFO] [stdout]   --> src/main.rs:95:40
[INFO] [stdout]    |
[INFO] [stdout] 95 |                         match captures.at(2).unwrap() {
[INFO] [stdout]    |                                        ^^ method not found in `&regex::Captures<'_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `at` found for reference `&regex::Captures<'_>` in the current scope
[INFO] [stdout]    --> src/main.rs:105:48
[INFO] [stdout]     |
[INFO] [stdout] 105 |                         print!("{} ", captures.at(2).unwrap());
[INFO] [stdout]     |                                                ^^ method not found in `&regex::Captures<'_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `at` found for reference `&regex::Captures<'_>` in the current scope
[INFO] [stdout]    --> src/main.rs:106:49
[INFO] [stdout]     |
[INFO] [stdout] 106 |                         print!("{}\n", captures.at(3).unwrap());
[INFO] [stdout]     |                                                 ^^ method not found in `&regex::Captures<'_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `monilog`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "79887ac889f4018f3e5114fbcde965a18c53fc851a9e28b9f6c6050c9f1957ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79887ac889f4018f3e5114fbcde965a18c53fc851a9e28b9f6c6050c9f1957ed", kill_on_drop: false }`
[INFO] [stdout] 79887ac889f4018f3e5114fbcde965a18c53fc851a9e28b9f6c6050c9f1957ed