[INFO] cloning repository https://github.com/ajwittmond/cryptoChallengesRust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ajwittmond/cryptoChallengesRust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fajwittmond%2FcryptoChallengesRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fajwittmond%2FcryptoChallengesRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f83df43f27ff61adc40a01b5fb865a5898cc45aa
[INFO] testing ajwittmond/cryptoChallengesRust against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fajwittmond%2FcryptoChallengesRust" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ajwittmond/cryptoChallengesRust on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ajwittmond/cryptoChallengesRust
[INFO] finished tweaking git repo https://github.com/ajwittmond/cryptoChallengesRust
[INFO] tweaked toml for git repo https://github.com/ajwittmond/cryptoChallengesRust written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/ajwittmond/cryptoChallengesRust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f94a3134e43dbc90fd562d635cd77cfaa554c7edafbb3adc7569ed1fb50bebec
[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" "f94a3134e43dbc90fd562d635cd77cfaa554c7edafbb3adc7569ed1fb50bebec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f94a3134e43dbc90fd562d635cd77cfaa554c7edafbb3adc7569ed1fb50bebec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f94a3134e43dbc90fd562d635cd77cfaa554c7edafbb3adc7569ed1fb50bebec", kill_on_drop: false }`
[INFO] [stdout] f94a3134e43dbc90fd562d635cd77cfaa554c7edafbb3adc7569ed1fb50bebec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c3eb6c4262278270a9b2660228bcdcc978909b1444633ca00a342e5567f0bedc
[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" "c3eb6c4262278270a9b2660228bcdcc978909b1444633ca00a342e5567f0bedc", kill_on_drop: false }`
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `main` in package `hex_to_base64 v0.2.0 (/opt/rustwide/workdir/rust/hex_to_base64)` has the same output filename as the bin target `main` in package `fixed_xor v0.1.0 (/opt/rustwide/workdir/rust/fixed_xor)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/main
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `main` in package `single_byte_xor_cipher v0.1.0 (/opt/rustwide/workdir/rust/single_byte_xor_cipher)` has the same output filename as the bin target `main` in package `hex_to_base64 v0.2.0 (/opt/rustwide/workdir/rust/hex_to_base64)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/main
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling libloading v0.6.3
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling vulkano v0.19.0
[INFO] [stderr]    Compiling instant v0.1.6
[INFO] [stderr]    Compiling vk-sys v0.5.2
[INFO] [stderr]    Compiling hex_to_base64 v0.2.0 (/opt/rustwide/workdir/rust/hex_to_base64)
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling num-bigint v0.3.0
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling fixed_xor v0.1.0 (/opt/rustwide/workdir/rust/fixed_xor)
[INFO] [stdout] error[E0463]: can't find crate for `fixed_xor`
[INFO] [stdout]  --> rust/fixed_xor/src/bin/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate fixed_xor;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[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 E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fixed_xor` 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" "c3eb6c4262278270a9b2660228bcdcc978909b1444633ca00a342e5567f0bedc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3eb6c4262278270a9b2660228bcdcc978909b1444633ca00a342e5567f0bedc", kill_on_drop: false }`
[INFO] [stdout] c3eb6c4262278270a9b2660228bcdcc978909b1444633ca00a342e5567f0bedc