[INFO] cloning repository https://github.com/Evalir/cryptopals
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Evalir/cryptopals" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEvalir%2Fcryptopals", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEvalir%2Fcryptopals'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2b7141aa21e7005a87ec4895924036114884e530
[INFO] checking Evalir/cryptopals against try#66388cc165a6c4ac98c074dc9f0281ff23528c55 for pr-150727
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEvalir%2Fcryptopals" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Evalir/cryptopals
[INFO] finished tweaking git repo https://github.com/Evalir/cryptopals
[INFO] tweaked toml for git repo https://github.com/Evalir/cryptopals written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Evalir/cryptopals on toolchain 66388cc165a6c4ac98c074dc9f0281ff23528c55
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Evalir/cryptopals 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" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking Evalir/cryptopals against try#66388cc165a6c4ac98c074dc9f0281ff23528c55 for pr-150727
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEvalir%2Fcryptopals" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Evalir/cryptopals
[INFO] finished tweaking git repo https://github.com/Evalir/cryptopals
[INFO] tweaked toml for git repo https://github.com/Evalir/cryptopals written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Evalir/cryptopals on toolchain 66388cc165a6c4ac98c074dc9f0281ff23528c55
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Evalir/cryptopals 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" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec0175bad444e125db6c527b4a059465e35550b767d1213439e8a92f9c7b05b0
[INFO] running `Command { std: "docker" "start" "-a" "ec0175bad444e125db6c527b4a059465e35550b767d1213439e8a92f9c7b05b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec0175bad444e125db6c527b4a059465e35550b767d1213439e8a92f9c7b05b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec0175bad444e125db6c527b4a059465e35550b767d1213439e8a92f9c7b05b0", kill_on_drop: false }`
[INFO] [stdout] ec0175bad444e125db6c527b4a059465e35550b767d1213439e8a92f9c7b05b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0e055d0607e2633fad624fd4daf9f693c35e236f38d3bf90bfd960176b9bff6
[INFO] running `Command { std: "docker" "start" "-a" "a0e055d0607e2633fad624fd4daf9f693c35e236f38d3bf90bfd960176b9bff6", kill_on_drop: false }`
[INFO] [stderr]     Checking cryptopals v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/main.rs:17:16
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn challenge_3(s: &str) -> String {
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `challenge_2` is never used
[INFO] [stdout]  --> src/main.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn challenge_2(s1: &str, s2: &str) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `challenge_3` is never used
[INFO] [stdout]   --> src/main.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn challenge_3(s: &str) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/main.rs:17:16
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn challenge_3(s: &str) -> String {
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `challenge_3` is never used
[INFO] [stdout]   --> src/main.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn challenge_3(s: &str) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] running `Command { std: "docker" "inspect" "a0e055d0607e2633fad624fd4daf9f693c35e236f38d3bf90bfd960176b9bff6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0e055d0607e2633fad624fd4daf9f693c35e236f38d3bf90bfd960176b9bff6", kill_on_drop: false }`
[INFO] [stdout] a0e055d0607e2633fad624fd4daf9f693c35e236f38d3bf90bfd960176b9bff6