[INFO] cloning repository https://github.com/varkor/metasub
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/varkor/metasub" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvarkor%2Fmetasub", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvarkor%2Fmetasub'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 223fb77cb9866a58013d7eb7afab2d2711224d12
[INFO] testing varkor/metasub against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvarkor%2Fmetasub" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/varkor/metasub on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/varkor/metasub
[INFO] finished tweaking git repo https://github.com/varkor/metasub
[INFO] tweaked toml for git repo https://github.com/varkor/metasub written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/varkor/metasub already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4bb2b2a965d6230ee928deb74f36e46ab4a01c4698271dc4ea78a49ccb7fe7ef
[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" "4bb2b2a965d6230ee928deb74f36e46ab4a01c4698271dc4ea78a49ccb7fe7ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4bb2b2a965d6230ee928deb74f36e46ab4a01c4698271dc4ea78a49ccb7fe7ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bb2b2a965d6230ee928deb74f36e46ab4a01c4698271dc4ea78a49ccb7fe7ef", kill_on_drop: false }`
[INFO] [stdout] 4bb2b2a965d6230ee928deb74f36e46ab4a01c4698271dc4ea78a49ccb7fe7ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] afbd222f41d78cc0223265c5f6efe4d157ac22ef8294c03b901f958a2e788399
[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" "afbd222f41d78cc0223265c5f6efe4d157ac22ef8294c03b901f958a2e788399", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.40
[INFO] [stderr]    Compiling num-traits v0.2.2
[INFO] [stderr]    Compiling regex-syntax v0.5.3
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling time v0.1.39
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]    Compiling num-integer v0.1.36
[INFO] [stderr]    Compiling chrono v0.4.2
[INFO] [stderr]    Compiling regex v0.2.10
[INFO] [stderr]    Compiling metasub v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:186:30
[INFO] [stdout]     |
[INFO] [stdout] 186 | ...                   &format!("dependency={}", deps),
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected enum `Cow`, found struct `String`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected enum `Cow<'_, str>`
[INFO] [stdout]              found struct `String`
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:188:30
[INFO] [stdout]     |
[INFO] [stdout] 188 | ...                   &format!("chrono={}/libchrono-a31d51bb8f8b101c.rlib", deps),
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected enum `Cow`, found struct `String`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected enum `Cow<'_, str>`
[INFO] [stdout]              found struct `String`
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:190:30
[INFO] [stdout]     |
[INFO] [stdout] 190 | ...                   &format!("regex={}/libregex-44aa0d49f4a94993.rlib", deps),
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected enum `Cow`, found struct `String`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected enum `Cow<'_, str>`
[INFO] [stdout]              found struct `String`
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `metasub`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "afbd222f41d78cc0223265c5f6efe4d157ac22ef8294c03b901f958a2e788399", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afbd222f41d78cc0223265c5f6efe4d157ac22ef8294c03b901f958a2e788399", kill_on_drop: false }`
[INFO] [stdout] afbd222f41d78cc0223265c5f6efe4d157ac22ef8294c03b901f958a2e788399