[INFO] cloning repository https://github.com/LeoCodes21/alpha_decoder
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LeoCodes21/alpha_decoder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeoCodes21%2Falpha_decoder", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeoCodes21%2Falpha_decoder'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1708e004eb771da42458298855528ec190907c4d
[INFO] checking LeoCodes21/alpha_decoder against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeoCodes21%2Falpha_decoder" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LeoCodes21/alpha_decoder on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LeoCodes21/alpha_decoder
[INFO] finished tweaking git repo https://github.com/LeoCodes21/alpha_decoder
[INFO] tweaked toml for git repo https://github.com/LeoCodes21/alpha_decoder written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/LeoCodes21/alpha_decoder already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pretty-hex v0.2.1
[INFO] [stderr]   Downloaded syn v1.0.52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a66bedd69b03cb68efa55796efa9a2c5411738016d4366ae471653d68e078c35
[INFO] running `Command { std: "docker" "start" "-a" "a66bedd69b03cb68efa55796efa9a2c5411738016d4366ae471653d68e078c35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a66bedd69b03cb68efa55796efa9a2c5411738016d4366ae471653d68e078c35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a66bedd69b03cb68efa55796efa9a2c5411738016d4366ae471653d68e078c35", kill_on_drop: false }`
[INFO] [stdout] a66bedd69b03cb68efa55796efa9a2c5411738016d4366ae471653d68e078c35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 24375169e9124f943b816306c7e8bf53d2b0d75b2acfc50a6124172e88d167e3
[INFO] running `Command { std: "docker" "start" "-a" "24375169e9124f943b816306c7e8bf53d2b0d75b2acfc50a6124172e88d167e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling syn v1.0.52
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking decoder v0.3.0 (/opt/rustwide/workdir/decoder)
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking textwrap v0.12.1
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking os_str_bytes v2.4.0
[INFO] [stderr]     Checking decoder-alpha2 v0.3.0 (/opt/rustwide/workdir/decoder-alpha2)
[INFO] [stderr]     Checking pretty-hex v0.2.1
[INFO] [stdout] warning: fields `prefix`, `decoder_body`, and `encoded_data` are never read
[INFO] [stdout]   --> decoder-alpha2/src/lib.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Alpha2Code {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 12 |     prefix: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 13 |     decoder_body: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 14 |     encoded_data: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> decoder-alpha2/src/lib.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl Alpha2Code {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 20 |     fn new(prefix: &str, decoder_body: &str, encoded_data: &str, code_type: &str, decoded_data: Vec<u8>) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `prefix`, `decoder_body`, and `encoded_data` are never read
[INFO] [stdout]   --> decoder-alpha2/src/lib.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Alpha2Code {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 12 |     prefix: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 13 |     decoder_body: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 14 |     encoded_data: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> decoder-alpha2/src/lib.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl Alpha2Code {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 20 |     fn new(prefix: &str, decoder_body: &str, encoded_data: &str, code_type: &str, decoded_data: Vec<u8>) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]     Checking clap v3.0.0-beta.2
[INFO] [stderr]     Checking decoder-cli v0.3.0 (/opt/rustwide/workdir/decoder-cli)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.46s
[INFO] running `Command { std: "docker" "inspect" "24375169e9124f943b816306c7e8bf53d2b0d75b2acfc50a6124172e88d167e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24375169e9124f943b816306c7e8bf53d2b0d75b2acfc50a6124172e88d167e3", kill_on_drop: false }`
[INFO] [stdout] 24375169e9124f943b816306c7e8bf53d2b0d75b2acfc50a6124172e88d167e3