[INFO] cloning repository https://github.com/randbw/random_hashtag_selector
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/randbw/random_hashtag_selector" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frandbw%2Frandom_hashtag_selector", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frandbw%2Frandom_hashtag_selector'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b69e8483ba707983e31c5023e476705ffbca5562
[INFO] testing randbw/random_hashtag_selector 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%2Frandbw%2Frandom_hashtag_selector" "/workspace/builds/worker-76/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-76/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/randbw/random_hashtag_selector 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/randbw/random_hashtag_selector
[INFO] finished tweaking git repo https://github.com/randbw/random_hashtag_selector
[INFO] tweaked toml for git repo https://github.com/randbw/random_hashtag_selector written to /workspace/builds/worker-76/source/Cargo.toml
[INFO] crate git repo https://github.com/randbw/random_hashtag_selector 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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] bf899e30dbd3d237f2a66140f2be8d853de15a6d593169f1ce3ddbc6aa1f31e2
[INFO] running `Command { std: "docker" "start" "-a" "bf899e30dbd3d237f2a66140f2be8d853de15a6d593169f1ce3ddbc6aa1f31e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf899e30dbd3d237f2a66140f2be8d853de15a6d593169f1ce3ddbc6aa1f31e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf899e30dbd3d237f2a66140f2be8d853de15a6d593169f1ce3ddbc6aa1f31e2", kill_on_drop: false }`
[INFO] [stdout] bf899e30dbd3d237f2a66140f2be8d853de15a6d593169f1ce3ddbc6aa1f31e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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] 1f167ab3488ba76c682da3e148ecce6b6d5868119e32f20b242b8c1c8b589710
[INFO] running `Command { std: "docker" "start" "-a" "1f167ab3488ba76c682da3e148ecce6b6d5868119e32f20b242b8c1c8b589710", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling hashtag_generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.95s
[INFO] running `Command { std: "docker" "inspect" "1f167ab3488ba76c682da3e148ecce6b6d5868119e32f20b242b8c1c8b589710", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f167ab3488ba76c682da3e148ecce6b6d5868119e32f20b242b8c1c8b589710", kill_on_drop: false }`
[INFO] [stdout] 1f167ab3488ba76c682da3e148ecce6b6d5868119e32f20b242b8c1c8b589710
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d9555033d7d204367323cdfe7447df2ef9913726479b3b7d242d90ab0dde74e
[INFO] running `Command { std: "docker" "start" "-a" "7d9555033d7d204367323cdfe7447df2ef9913726479b3b7d242d90ab0dde74e", kill_on_drop: false }`
[INFO] [stderr]    Compiling hashtag_generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "7d9555033d7d204367323cdfe7447df2ef9913726479b3b7d242d90ab0dde74e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d9555033d7d204367323cdfe7447df2ef9913726479b3b7d242d90ab0dde74e", kill_on_drop: false }`
[INFO] [stdout] 7d9555033d7d204367323cdfe7447df2ef9913726479b3b7d242d90ab0dde74e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fe4a9c9a024f12bc535564b06f45f5bb6877923f618d065cbe60cbf0ae6020b6
[INFO] running `Command { std: "docker" "start" "-a" "fe4a9c9a024f12bc535564b06f45f5bb6877923f618d065cbe60cbf0ae6020b6", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hashtag_generator-7a49ecc8d72c38e2)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fe4a9c9a024f12bc535564b06f45f5bb6877923f618d065cbe60cbf0ae6020b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe4a9c9a024f12bc535564b06f45f5bb6877923f618d065cbe60cbf0ae6020b6", kill_on_drop: false }`
[INFO] [stdout] fe4a9c9a024f12bc535564b06f45f5bb6877923f618d065cbe60cbf0ae6020b6