[INFO] cloning repository https://github.com/rharriso/troll
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rharriso/troll" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frharriso%2Ftroll", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frharriso%2Ftroll'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f04cb530cf3d33dfc4a8be95a74b98aad0321350
[INFO] checking rharriso/troll against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frharriso%2Ftroll" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rharriso/troll on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rharriso/troll
[INFO] finished tweaking git repo https://github.com/rharriso/troll
[INFO] tweaked toml for git repo https://github.com/rharriso/troll written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/rharriso/troll already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded levenshtein v1.0.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc40756dcf56b7770b4f3f21c0e7c559f1759fdd0b8ab90539888e505c8da5c6
[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" "cc40756dcf56b7770b4f3f21c0e7c559f1759fdd0b8ab90539888e505c8da5c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc40756dcf56b7770b4f3f21c0e7c559f1759fdd0b8ab90539888e505c8da5c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc40756dcf56b7770b4f3f21c0e7c559f1759fdd0b8ab90539888e505c8da5c6", kill_on_drop: false }`
[INFO] [stdout] cc40756dcf56b7770b4f3f21c0e7c559f1759fdd0b8ab90539888e505c8da5c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 7b92b7b0d1e979800e3f209c2f04c9d9b2739c4bdf8dbd5913f09e5bf2dd1ed8
[INFO] running `Command { std: "docker" "start" "-a" "7b92b7b0d1e979800e3f209c2f04c9d9b2739c4bdf8dbd5913f09e5bf2dd1ed8", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.92
[INFO] [stderr]    Compiling regex v1.1.7
[INFO] [stderr]     Checking utf8-ranges v1.0.3
[INFO] [stderr]     Checking levenshtein v1.0.4
[INFO] [stderr]     Checking regex-syntax v0.6.7
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking memchr v2.2.0
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking csv-core v0.1.5
[INFO] [stderr]     Checking aho-corasick v0.7.3
[INFO] [stderr]     Checking csv v1.0.7
[INFO] [stderr]     Checking prettytable-rs v0.8.0
[INFO] [stderr]     Checking troll v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `branch`
[INFO] [stdout]    --> src/main.rs:196:9
[INFO] [stdout]     |
[INFO] [stdout] 196 |     let branch = match capture_group.get(3) {
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_branch`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `branch`
[INFO] [stdout]    --> src/main.rs:196:9
[INFO] [stdout]     |
[INFO] [stdout] 196 |     let branch = match capture_group.get(3) {
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_branch`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.75s
[INFO] running `Command { std: "docker" "inspect" "7b92b7b0d1e979800e3f209c2f04c9d9b2739c4bdf8dbd5913f09e5bf2dd1ed8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b92b7b0d1e979800e3f209c2f04c9d9b2739c4bdf8dbd5913f09e5bf2dd1ed8", kill_on_drop: false }`
[INFO] [stdout] 7b92b7b0d1e979800e3f209c2f04c9d9b2739c4bdf8dbd5913f09e5bf2dd1ed8