[INFO] cloning repository https://github.com/AlexKochurov/prisoners [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AlexKochurov/prisoners" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexKochurov%2Fprisoners", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexKochurov%2Fprisoners'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7bfee176b500ac56804cccdd1f4e7e199983a227 [INFO] testing AlexKochurov/prisoners against beta-2022-02-22 for beta-1.60-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexKochurov%2Fprisoners" "/workspace/builds/worker-1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/AlexKochurov/prisoners on toolchain beta-2022-02-22 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/AlexKochurov/prisoners [INFO] finished tweaking git repo https://github.com/AlexKochurov/prisoners [INFO] tweaked toml for git repo https://github.com/AlexKochurov/prisoners written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/AlexKochurov/prisoners already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6415a1180bcd36778710bc7248639da1e0a8155f4d0a086a5d5a6dad8e8c02ec [INFO] running `Command { std: "docker" "start" "-a" "6415a1180bcd36778710bc7248639da1e0a8155f4d0a086a5d5a6dad8e8c02ec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6415a1180bcd36778710bc7248639da1e0a8155f4d0a086a5d5a6dad8e8c02ec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6415a1180bcd36778710bc7248639da1e0a8155f4d0a086a5d5a6dad8e8c02ec", kill_on_drop: false }` [INFO] [stdout] 6415a1180bcd36778710bc7248639da1e0a8155f4d0a086a5d5a6dad8e8c02ec [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3537f10194342d8d05c6b9a229066545ef0ee44a368755afd56985d2f9e1855c [INFO] running `Command { std: "docker" "start" "-a" "3537f10194342d8d05c6b9a229066545ef0ee44a368755afd56985d2f9e1855c", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.66 [INFO] [stderr] Compiling getrandom v0.1.13 [INFO] [stderr] Compiling ppv-lite86 v0.2.6 [INFO] [stderr] Compiling c2-chacha v0.2.3 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling rand_chacha v0.2.1 [INFO] [stderr] Compiling rand v0.7.2 [INFO] [stderr] Compiling prisoners v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: value assigned to `current_prisoner` is never read [INFO] [stdout] --> src/main.rs:84:13 [INFO] [stdout] | [INFO] [stdout] 84 | let mut current_prisoner: i64 = 0; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `current_prisoner` is never read [INFO] [stdout] --> src/main.rs:135:13 [INFO] [stdout] | [INFO] [stdout] 135 | let mut current_prisoner: i64 = 0; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 26.04s [INFO] running `Command { std: "docker" "inspect" "3537f10194342d8d05c6b9a229066545ef0ee44a368755afd56985d2f9e1855c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3537f10194342d8d05c6b9a229066545ef0ee44a368755afd56985d2f9e1855c", kill_on_drop: false }` [INFO] [stdout] 3537f10194342d8d05c6b9a229066545ef0ee44a368755afd56985d2f9e1855c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 127fcc10731077e95cb4a46baf25020d1b7ebc1f0ac5efa2039a22bd2c000eae [INFO] running `Command { std: "docker" "start" "-a" "127fcc10731077e95cb4a46baf25020d1b7ebc1f0ac5efa2039a22bd2c000eae", kill_on_drop: false }` [INFO] [stderr] Compiling prisoners v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: value assigned to `current_prisoner` is never read [INFO] [stdout] --> src/main.rs:84:13 [INFO] [stdout] | [INFO] [stdout] 84 | let mut current_prisoner: i64 = 0; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `current_prisoner` is never read [INFO] [stdout] --> src/main.rs:135:13 [INFO] [stdout] | [INFO] [stdout] 135 | let mut current_prisoner: i64 = 0; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.53s [INFO] running `Command { std: "docker" "inspect" "127fcc10731077e95cb4a46baf25020d1b7ebc1f0ac5efa2039a22bd2c000eae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "127fcc10731077e95cb4a46baf25020d1b7ebc1f0ac5efa2039a22bd2c000eae", kill_on_drop: false }` [INFO] [stdout] 127fcc10731077e95cb4a46baf25020d1b7ebc1f0ac5efa2039a22bd2c000eae [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 8a3c7015bebde5964f71ee48e32ecc01aeb3a21e40a468fe11a0a0f5893a31b7 [INFO] running `Command { std: "docker" "start" "-a" "8a3c7015bebde5964f71ee48e32ecc01aeb3a21e40a468fe11a0a0f5893a31b7", kill_on_drop: false }` [INFO] [stderr] warning: value assigned to `current_prisoner` is never read [INFO] [stderr] --> src/main.rs:84:13 [INFO] [stderr] | [INFO] [stderr] 84 | let mut current_prisoner: i64 = 0; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `current_prisoner` is never read [INFO] [stderr] --> src/main.rs:135:13 [INFO] [stderr] | [INFO] [stderr] 135 | let mut current_prisoner: i64 = 0; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: `prisoners` (bin "prisoners" test) generated 2 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.82s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/prisoners-82c0907bdeaa2dd0) [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" "8a3c7015bebde5964f71ee48e32ecc01aeb3a21e40a468fe11a0a0f5893a31b7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8a3c7015bebde5964f71ee48e32ecc01aeb3a21e40a468fe11a0a0f5893a31b7", kill_on_drop: false }` [INFO] [stdout] 8a3c7015bebde5964f71ee48e32ecc01aeb3a21e40a468fe11a0a0f5893a31b7