[INFO] fetching crate rexl 0.0.4...
[INFO] testing rexl-0.0.4 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate rexl 0.0.4 into /workspace/builds/worker-21/source
[INFO] validating manifest of crates.io crate rexl 0.0.4 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rexl 0.0.4
[INFO] finished tweaking crates.io crate rexl 0.0.4
[INFO] tweaked toml for crates.io crate rexl 0.0.4 written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0399c29db59c88b7bb5b513f236887f75325d4a7428f4e43a8280dfe2b3ccc3f
[INFO] running `Command { std: "docker" "start" "-a" "0399c29db59c88b7bb5b513f236887f75325d4a7428f4e43a8280dfe2b3ccc3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0399c29db59c88b7bb5b513f236887f75325d4a7428f4e43a8280dfe2b3ccc3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0399c29db59c88b7bb5b513f236887f75325d4a7428f4e43a8280dfe2b3ccc3f", kill_on_drop: false }`
[INFO] [stdout] 0399c29db59c88b7bb5b513f236887f75325d4a7428f4e43a8280dfe2b3ccc3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 197be00652dd2600be41ec8f0dfa69006cc6f29fc8b923e38db716ac12d8c844
[INFO] running `Command { std: "docker" "start" "-a" "197be00652dd2600be41ec8f0dfa69006cc6f29fc8b923e38db716ac12d8c844", kill_on_drop: false }`
[INFO] [stderr]    Compiling rexl v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.39s
[INFO] running `Command { std: "docker" "inspect" "197be00652dd2600be41ec8f0dfa69006cc6f29fc8b923e38db716ac12d8c844", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "197be00652dd2600be41ec8f0dfa69006cc6f29fc8b923e38db716ac12d8c844", kill_on_drop: false }`
[INFO] [stdout] 197be00652dd2600be41ec8f0dfa69006cc6f29fc8b923e38db716ac12d8c844
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b2a22d938d10ff3f2cdfb06bc9fe9a3f42ef29920ab7468067e631c12493bf8
[INFO] running `Command { std: "docker" "start" "-a" "6b2a22d938d10ff3f2cdfb06bc9fe9a3f42ef29920ab7468067e631c12493bf8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rexl v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0428]: the name `qrcode` is defined multiple times
[INFO] [stdout]   --> tests/lib.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | mod qrcode;
[INFO] [stdout]    | ----------- previous definition of the module `qrcode` here
[INFO] [stdout] 11 | #[cfg(test)]
[INFO] [stdout] 12 | mod qrcode;
[INFO] [stdout]    | ^^^^^^^^^^^ `qrcode` redefined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `qrcode` must be defined only once in the type namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0428`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rexl` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "6b2a22d938d10ff3f2cdfb06bc9fe9a3f42ef29920ab7468067e631c12493bf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b2a22d938d10ff3f2cdfb06bc9fe9a3f42ef29920ab7468067e631c12493bf8", kill_on_drop: false }`
[INFO] [stdout] 6b2a22d938d10ff3f2cdfb06bc9fe9a3f42ef29920ab7468067e631c12493bf8