[INFO] fetching crate an 0.0.2...
[INFO] testing an-0.0.2 against 1.59.0 for beta-1.60-1
[INFO] extracting crate an 0.0.2 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate an 0.0.2 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate an 0.0.2
[INFO] finished tweaking crates.io crate an 0.0.2
[INFO] tweaked toml for crates.io crate an 0.0.2 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fae979a5ebdb6c85763433a69d48ce41fc665c45de9b3c4de4bbb1176c6eebd4
[INFO] running `Command { std: "docker" "start" "-a" "fae979a5ebdb6c85763433a69d48ce41fc665c45de9b3c4de4bbb1176c6eebd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fae979a5ebdb6c85763433a69d48ce41fc665c45de9b3c4de4bbb1176c6eebd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fae979a5ebdb6c85763433a69d48ce41fc665c45de9b3c4de4bbb1176c6eebd4", kill_on_drop: false }`
[INFO] [stdout] fae979a5ebdb6c85763433a69d48ce41fc665c45de9b3c4de4bbb1176c6eebd4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] acad14c59e0e45300d32eca157f283170eda86c6f9686afbd8325216a44d9d49
[INFO] running `Command { std: "docker" "start" "-a" "acad14c59e0e45300d32eca157f283170eda86c6f9686afbd8325216a44d9d49", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling an v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: cannot find attribute `experimental` in this scope
[INFO] [stdout]  --> src/lib.rs:5:3
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[experimental]
[INFO] [stdout]   |   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Str` in this scope
[INFO] [stdout]  --> src/lib.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn a<S: Str>(word: S) -> bool {
[INFO] [stdout]   |             ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Str` in this scope
[INFO] [stdout]   --> src/lib.rs:34:14
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn an<S: Str>(word: S) -> bool {
[INFO] [stdout]    |              ^^^ not found in this scope
[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 E0405`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `an` due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "acad14c59e0e45300d32eca157f283170eda86c6f9686afbd8325216a44d9d49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acad14c59e0e45300d32eca157f283170eda86c6f9686afbd8325216a44d9d49", kill_on_drop: false }`
[INFO] [stdout] acad14c59e0e45300d32eca157f283170eda86c6f9686afbd8325216a44d9d49