[INFO] updating cached repository https://github.com/blackscalare/synacor-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }` [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7dda7c19ad26ff7beec57627279c6f0dd1dd5b3c [INFO] testing blackscalare/synacor-rust against beta-2022-04-10 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblackscalare%2Fsynacor-rust" "/workspace/builds/worker-111/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-111/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/blackscalare/synacor-rust on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/blackscalare/synacor-rust [INFO] finished tweaking git repo https://github.com/blackscalare/synacor-rust [INFO] tweaked toml for git repo https://github.com/blackscalare/synacor-rust written to /workspace/builds/worker-111/source/Cargo.toml [INFO] crate git repo https://github.com/blackscalare/synacor-rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 511b17641e018a8140261b962bec1758d574fdf45facf4f91a8ba991571121f0 [INFO] running `Command { std: "docker" "start" "-a" "511b17641e018a8140261b962bec1758d574fdf45facf4f91a8ba991571121f0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "511b17641e018a8140261b962bec1758d574fdf45facf4f91a8ba991571121f0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "511b17641e018a8140261b962bec1758d574fdf45facf4f91a8ba991571121f0", kill_on_drop: false }` [INFO] [stdout] 511b17641e018a8140261b962bec1758d574fdf45facf4f91a8ba991571121f0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3fdb41c959cb15845c151eda9d6f56bacb42fcb27ad448b6c4b6251223cb2108 [INFO] running `Command { std: "docker" "start" "-a" "3fdb41c959cb15845c151eda9d6f56bacb42fcb27ad448b6c4b6251223cb2108", kill_on_drop: false }` [INFO] [stderr] Compiling synacor-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: value assigned to `p_str` is never read [INFO] [stdout] --> src/cpu.rs:114:29 [INFO] [stdout] | [INFO] [stdout] 114 | let mut p_str = String::new(); [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 `a` is never read [INFO] [stdout] --> src/cpu.rs:117:29 [INFO] [stdout] | [INFO] [stdout] 117 | let mut a = 0; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `b` is never read [INFO] [stdout] --> src/cpu.rs:118:29 [INFO] [stdout] | [INFO] [stdout] 118 | let mut b = 0; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `result` [INFO] [stdout] --> src/cpu.rs:243:25 [INFO] [stdout] | [INFO] [stdout] 243 | let result = stdin().read_line(&mut buffer); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `result` [INFO] [stdout] --> src/cpu.rs:378:29 [INFO] [stdout] | [INFO] [stdout] 378 | let result = stdin().read_line(&mut buffer); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 28.09s [INFO] running `Command { std: "docker" "inspect" "3fdb41c959cb15845c151eda9d6f56bacb42fcb27ad448b6c4b6251223cb2108", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3fdb41c959cb15845c151eda9d6f56bacb42fcb27ad448b6c4b6251223cb2108", kill_on_drop: false }` [INFO] [stdout] 3fdb41c959cb15845c151eda9d6f56bacb42fcb27ad448b6c4b6251223cb2108 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 870b76dc9bf08ade67d60ad2f7acc848f17914139e04f006a334cc69dceade61 [INFO] running `Command { std: "docker" "start" "-a" "870b76dc9bf08ade67d60ad2f7acc848f17914139e04f006a334cc69dceade61", kill_on_drop: false }` [INFO] [stderr] Compiling synacor-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: value assigned to `p_str` is never read [INFO] [stdout] --> src/cpu.rs:114:29 [INFO] [stdout] | [INFO] [stdout] 114 | let mut p_str = String::new(); [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 `a` is never read [INFO] [stdout] --> src/cpu.rs:117:29 [INFO] [stdout] | [INFO] [stdout] 117 | let mut a = 0; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `b` is never read [INFO] [stdout] --> src/cpu.rs:118:29 [INFO] [stdout] | [INFO] [stdout] 118 | let mut b = 0; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `result` [INFO] [stdout] --> src/cpu.rs:243:25 [INFO] [stdout] | [INFO] [stdout] 243 | let result = stdin().read_line(&mut buffer); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `result` [INFO] [stdout] --> src/cpu.rs:378:29 [INFO] [stdout] | [INFO] [stdout] 378 | let result = stdin().read_line(&mut buffer); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.49s [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/synacor_rust-89ad143e34d2c5c3) [INFO] running `Command { std: "docker" "inspect" "870b76dc9bf08ade67d60ad2f7acc848f17914139e04f006a334cc69dceade61", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "870b76dc9bf08ade67d60ad2f7acc848f17914139e04f006a334cc69dceade61", kill_on_drop: false }` [INFO] [stdout] 870b76dc9bf08ade67d60ad2f7acc848f17914139e04f006a334cc69dceade61 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] c72fc5374fee999eff805c8560a2a3aacbedfee666b8ed868afc969628a30ba7 [INFO] running `Command { std: "docker" "start" "-a" "c72fc5374fee999eff805c8560a2a3aacbedfee666b8ed868afc969628a30ba7", kill_on_drop: false }` [INFO] [stderr] warning: value assigned to `p_str` is never read [INFO] [stderr] --> src/cpu.rs:114:29 [INFO] [stderr] | [INFO] [stderr] 114 | let mut p_str = String::new(); [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 `a` is never read [INFO] [stderr] --> src/cpu.rs:117:29 [INFO] [stderr] | [INFO] [stderr] 117 | let mut a = 0; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `b` is never read [INFO] [stderr] --> src/cpu.rs:118:29 [INFO] [stderr] | [INFO] [stderr] 118 | let mut b = 0; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `result` [INFO] [stderr] --> src/cpu.rs:243:25 [INFO] [stderr] | [INFO] [stderr] 243 | let result = stdin().read_line(&mut buffer); [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `result` [INFO] [stderr] --> src/cpu.rs:378:29 [INFO] [stderr] | [INFO] [stderr] 378 | let result = stdin().read_line(&mut buffer); [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result` [INFO] [stderr] [INFO] [stderr] warning: `synacor-rust` (bin "synacor-rust" test) generated 5 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/synacor_rust-89ad143e34d2c5c3) [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" "c72fc5374fee999eff805c8560a2a3aacbedfee666b8ed868afc969628a30ba7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c72fc5374fee999eff805c8560a2a3aacbedfee666b8ed868afc969628a30ba7", kill_on_drop: false }` [INFO] [stdout] c72fc5374fee999eff805c8560a2a3aacbedfee666b8ed868afc969628a30ba7