[INFO] cloning repository https://github.com/kletska/ACS-HW-5
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kletska/ACS-HW-5" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkletska%2FACS-HW-5", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkletska%2FACS-HW-5'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 63fbc5f2ce9b4cb131b265071ea98536ddaa5dd9
[INFO] testing kletska/ACS-HW-5 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_getrandom_patch_2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkletska%2FACS-HW-5" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kletska/ACS-HW-5
[INFO] finished tweaking git repo https://github.com/kletska/ACS-HW-5
[INFO] tweaked toml for git repo https://github.com/kletska/ACS-HW-5 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kletska/ACS-HW-5 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kletska/ACS-HW-5 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b9ba917e49f4e1703d0b5f4672f4fa4f4863d0cc32f4fb51e1ae34844d617107
[INFO] running `Command { std: "docker" "start" "-a" "b9ba917e49f4e1703d0b5f4672f4fa4f4863d0cc32f4fb51e1ae34844d617107", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9ba917e49f4e1703d0b5f4672f4fa4f4863d0cc32f4fb51e1ae34844d617107", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9ba917e49f4e1703d0b5f4672f4fa4f4863d0cc32f4fb51e1ae34844d617107", kill_on_drop: false }`
[INFO] [stdout] b9ba917e49f4e1703d0b5f4672f4fa4f4863d0cc32f4fb51e1ae34844d617107
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] dd23a33337748e7b09712480162558e2f652b3f707da81e5d95fadfa1b368d5a
[INFO] running `Command { std: "docker" "start" "-a" "dd23a33337748e7b09712480162558e2f652b3f707da81e5d95fadfa1b368d5a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.111
[INFO] [stderr]    Compiling ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling ACS-HW-5 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `next` is never read
[INFO] [stdout]   --> src/programmer.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 56 |     let mut next = None;
[INFO] [stdout]    |             ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.14s
[INFO] running `Command { std: "docker" "inspect" "dd23a33337748e7b09712480162558e2f652b3f707da81e5d95fadfa1b368d5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd23a33337748e7b09712480162558e2f652b3f707da81e5d95fadfa1b368d5a", kill_on_drop: false }`
[INFO] [stdout] dd23a33337748e7b09712480162558e2f652b3f707da81e5d95fadfa1b368d5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 8c57944dfb89f494fd6b8019beaaa43d8b6b7e03327de4b1301bdc52bf6816eb
[INFO] running `Command { std: "docker" "start" "-a" "8c57944dfb89f494fd6b8019beaaa43d8b6b7e03327de4b1301bdc52bf6816eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling ACS-HW-5 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `next` is never read
[INFO] [stdout]   --> src/programmer.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 56 |     let mut next = None;
[INFO] [stdout]    |             ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "8c57944dfb89f494fd6b8019beaaa43d8b6b7e03327de4b1301bdc52bf6816eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c57944dfb89f494fd6b8019beaaa43d8b6b7e03327de4b1301bdc52bf6816eb", kill_on_drop: false }`
[INFO] [stdout] 8c57944dfb89f494fd6b8019beaaa43d8b6b7e03327de4b1301bdc52bf6816eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 7efe08a57a263f772c904694224376bfc150dce23cc274d1d64e940338dbe966
[INFO] running `Command { std: "docker" "start" "-a" "7efe08a57a263f772c904694224376bfc150dce23cc274d1d64e940338dbe966", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `next` is never read
[INFO] [stderr]   --> src/programmer.rs:56:13
[INFO] [stderr]    |
[INFO] [stderr] 56 |     let mut next = None;
[INFO] [stderr]    |             ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `ACS-HW-5` (bin "ACS-HW-5" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/ACS_HW_5-7e2e29933c9a2b13)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[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" "7efe08a57a263f772c904694224376bfc150dce23cc274d1d64e940338dbe966", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7efe08a57a263f772c904694224376bfc150dce23cc274d1d64e940338dbe966", kill_on_drop: false }`
[INFO] [stdout] 7efe08a57a263f772c904694224376bfc150dce23cc274d1d64e940338dbe966