[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#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeoCodes21%2Falpha_decoder" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LeoCodes21/alpha_decoder on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "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-2/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: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8aee65bb5cbf590bb2a54266083098683e3363903197208d31185570fd880dc5
[INFO] running `Command { std: "docker" "start" "-a" "8aee65bb5cbf590bb2a54266083098683e3363903197208d31185570fd880dc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8aee65bb5cbf590bb2a54266083098683e3363903197208d31185570fd880dc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8aee65bb5cbf590bb2a54266083098683e3363903197208d31185570fd880dc5", kill_on_drop: false }`
[INFO] [stdout] 8aee65bb5cbf590bb2a54266083098683e3363903197208d31185570fd880dc5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bcb8a20bca6d700f9495891cdf6df52f101cabb7c8a67877d206c18d4769b0c3
[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" "bcb8a20bca6d700f9495891cdf6df52f101cabb7c8a67877d206c18d4769b0c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling syn v1.0.52
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking decoder v0.3.0 (/opt/rustwide/workdir/decoder)
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]     Checking textwrap v0.12.1
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking decoder-alpha2 v0.3.0 (/opt/rustwide/workdir/decoder-alpha2)
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stdout] warning: field is never read: `prefix`
[INFO] [stdout]   --> decoder-alpha2/src/lib.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     prefix: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `decoder_body`
[INFO] [stdout]   --> decoder-alpha2/src/lib.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     decoder_body: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `encoded_data`
[INFO] [stdout]   --> decoder-alpha2/src/lib.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     encoded_data: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> decoder-alpha2/src/lib.rs:20:8
[INFO] [stdout]    |
[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: field is never read: `prefix`
[INFO] [stdout]   --> decoder-alpha2/src/lib.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     prefix: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `decoder_body`
[INFO] [stdout]   --> decoder-alpha2/src/lib.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     decoder_body: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `encoded_data`
[INFO] [stdout]   --> decoder-alpha2/src/lib.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     encoded_data: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> decoder-alpha2/src/lib.rs:20:8
[INFO] [stdout]    |
[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: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[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 [unoptimized + debuginfo] target(s) in 31.23s
[INFO] running `Command { std: "docker" "inspect" "bcb8a20bca6d700f9495891cdf6df52f101cabb7c8a67877d206c18d4769b0c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcb8a20bca6d700f9495891cdf6df52f101cabb7c8a67877d206c18d4769b0c3", kill_on_drop: false }`
[INFO] [stdout] bcb8a20bca6d700f9495891cdf6df52f101cabb7c8a67877d206c18d4769b0c3