[INFO] cloning repository https://github.com/tehgeekmeister/boggler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tehgeekmeister/boggler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftehgeekmeister%2Fboggler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftehgeekmeister%2Fboggler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f161c645eed8581aa229b7a95c14bc806b0b8e1c
[INFO] testing tehgeekmeister/boggler against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftehgeekmeister%2Fboggler" "/workspace/builds/worker-29/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-29/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tehgeekmeister/boggler on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tehgeekmeister/boggler
[INFO] finished tweaking git repo https://github.com/tehgeekmeister/boggler
[INFO] tweaked toml for git repo https://github.com/tehgeekmeister/boggler written to /workspace/builds/worker-29/source/Cargo.toml
[INFO] crate git repo https://github.com/tehgeekmeister/boggler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fixedbitset v0.0.5
[INFO] [stderr]   Downloaded nibble_vec v0.0.3
[INFO] [stderr]   Downloaded petgraph v0.1.11
[INFO] [stderr]   Downloaded radix_trie v0.0.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6073d8332e0c9e5a3d9b307da0fe515e782a442e069fb4466c90496921cb08be
[INFO] running `Command { std: "docker" "start" "-a" "6073d8332e0c9e5a3d9b307da0fe515e782a442e069fb4466c90496921cb08be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6073d8332e0c9e5a3d9b307da0fe515e782a442e069fb4466c90496921cb08be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6073d8332e0c9e5a3d9b307da0fe515e782a442e069fb4466c90496921cb08be", kill_on_drop: false }`
[INFO] [stdout] 6073d8332e0c9e5a3d9b307da0fe515e782a442e069fb4466c90496921cb08be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33fd060ea5c659126aab7cd7dc323f06b0031e295e4c83b73f8862d14a83c00e
[INFO] running `Command { std: "docker" "start" "-a" "33fd060ea5c659126aab7cd7dc323f06b0031e295e4c83b73f8862d14a83c00e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling nibble_vec v0.0.3
[INFO] [stderr]    Compiling fixedbitset v0.0.5
[INFO] [stderr]    Compiling radix_trie v0.0.8
[INFO] [stderr]    Compiling petgraph v0.1.11
[INFO] [stderr]    Compiling boggler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/main.rs:105:13
[INFO] [stdout]     |
[INFO] [stdout] 105 |     let f = try!(File::open("./words"));
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/main.rs:110:21
[INFO] [stdout]     |
[INFO] [stdout] 110 |         trie.insert(try!(line), ());
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0392]: parameter `'a` is never used
[INFO] [stdout]   --> src/main.rs:14:22
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct PathComponent<'a> {
[INFO] [stdout]    |                      ^^ unused parameter
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing `'a`, referring to it in a field, or using a marker such as `PhantomData`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0392]: parameter `'a` is never used
[INFO] [stdout]   --> src/main.rs:37:30
[INFO] [stdout]    |
[INFO] [stdout] 37 | struct PathComponentIterator<'a: 'b, 'b> {
[INFO] [stdout]    |                              ^^ unused parameter
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing `'a`, referring to it in a field, or using a marker such as `PhantomData`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0392`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `boggler` due to 3 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "33fd060ea5c659126aab7cd7dc323f06b0031e295e4c83b73f8862d14a83c00e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33fd060ea5c659126aab7cd7dc323f06b0031e295e4c83b73f8862d14a83c00e", kill_on_drop: false }`
[INFO] [stdout] 33fd060ea5c659126aab7cd7dc323f06b0031e295e4c83b73f8862d14a83c00e