[INFO] cloning repository https://github.com/cowang4/rusty_primes [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cowang4/rusty_primes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcowang4%2Frusty_primes", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcowang4%2Frusty_primes'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 21bc62830ae1854e493e277aa730cb01c23bc4b6 [INFO] testing cowang4/rusty_primes against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcowang4%2Frusty_primes" "/workspace/builds/worker-17/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-17/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/cowang4/rusty_primes on toolchain 722e1797249a965b6335aebd65d777f917e498f1 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/cowang4/rusty_primes [INFO] finished tweaking git repo https://github.com/cowang4/rusty_primes [INFO] tweaked toml for git repo https://github.com/cowang4/rusty_primes written to /workspace/builds/worker-17/source/Cargo.toml [INFO] crate git repo https://github.com/cowang4/rusty_primes already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1c490547132412dfb77dc22ae84cce19e6862178c1fbebf2db175d3bea85d69c [INFO] running `Command { std: "docker" "start" "-a" "1c490547132412dfb77dc22ae84cce19e6862178c1fbebf2db175d3bea85d69c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1c490547132412dfb77dc22ae84cce19e6862178c1fbebf2db175d3bea85d69c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1c490547132412dfb77dc22ae84cce19e6862178c1fbebf2db175d3bea85d69c", kill_on_drop: false }` [INFO] [stdout] 1c490547132412dfb77dc22ae84cce19e6862178c1fbebf2db175d3bea85d69c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 07d9e2780bd057b1f4b4cec7d7ea564ae0bc2d7eea84c015544ab304e9b89d98 [INFO] running `Command { std: "docker" "start" "-a" "07d9e2780bd057b1f4b4cec7d7ea564ae0bc2d7eea84c015544ab304e9b89d98", kill_on_drop: false }` [INFO] [stderr] Compiling rusty_primes v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused return value of `collect` that must be used [INFO] [stdout] --> src/main.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | / ((i*i)..n) [INFO] [stdout] 15 | | .step_by(i) [INFO] [stdout] 16 | | .map(|i| primes[i] = false) [INFO] [stdout] 17 | | .collect::<()>(); [INFO] [stdout] | |_____________________________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `collect` that must be used [INFO] [stdout] --> src/main.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 30 | / primes [INFO] [stdout] 31 | | .iter() [INFO] [stdout] 32 | | .map(|i| println!("{}", i)) [INFO] [stdout] 33 | | .collect::<()>(); [INFO] [stdout] | |_________________________^ [INFO] [stdout] | [INFO] [stdout] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.85s [INFO] running `Command { std: "docker" "inspect" "07d9e2780bd057b1f4b4cec7d7ea564ae0bc2d7eea84c015544ab304e9b89d98", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "07d9e2780bd057b1f4b4cec7d7ea564ae0bc2d7eea84c015544ab304e9b89d98", kill_on_drop: false }` [INFO] [stdout] 07d9e2780bd057b1f4b4cec7d7ea564ae0bc2d7eea84c015544ab304e9b89d98 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b649949f9dc29579d17f717f92db28def72c9d8cadfefc42ea72ccd620618659 [INFO] running `Command { std: "docker" "start" "-a" "b649949f9dc29579d17f717f92db28def72c9d8cadfefc42ea72ccd620618659", kill_on_drop: false }` [INFO] [stderr] Compiling rusty_primes v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused return value of `collect` that must be used [INFO] [stdout] --> src/main.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | / ((i*i)..n) [INFO] [stdout] 15 | | .step_by(i) [INFO] [stdout] 16 | | .map(|i| primes[i] = false) [INFO] [stdout] 17 | | .collect::<()>(); [INFO] [stdout] | |_____________________________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `collect` that must be used [INFO] [stdout] --> src/main.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 30 | / primes [INFO] [stdout] 31 | | .iter() [INFO] [stdout] 32 | | .map(|i| println!("{}", i)) [INFO] [stdout] 33 | | .collect::<()>(); [INFO] [stdout] | |_________________________^ [INFO] [stdout] | [INFO] [stdout] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.50s [INFO] running `Command { std: "docker" "inspect" "b649949f9dc29579d17f717f92db28def72c9d8cadfefc42ea72ccd620618659", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b649949f9dc29579d17f717f92db28def72c9d8cadfefc42ea72ccd620618659", kill_on_drop: false }` [INFO] [stdout] b649949f9dc29579d17f717f92db28def72c9d8cadfefc42ea72ccd620618659 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 3b8e3decbcb5ef0e93f81cd0c53e1ab776cae78ec7730484054b298da9fb18f7 [INFO] running `Command { std: "docker" "start" "-a" "3b8e3decbcb5ef0e93f81cd0c53e1ab776cae78ec7730484054b298da9fb18f7", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: unused return value of `collect` that must be used [INFO] [stderr] --> src/main.rs:14:9 [INFO] [stderr] | [INFO] [stderr] 14 | / ((i*i)..n) [INFO] [stderr] 15 | | .step_by(i) [INFO] [stderr] 16 | | .map(|i| primes[i] = false) [INFO] [stderr] 17 | | .collect::<()>(); [INFO] [stderr] | |_____________________________^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stderr] [INFO] [stderr] warning: unused return value of `collect` that must be used [INFO] [stderr] --> src/main.rs:30:5 [INFO] [stderr] | [INFO] [stderr] 30 | / primes [INFO] [stderr] 31 | | .iter() [INFO] [stderr] 32 | | .map(|i| println!("{}", i)) [INFO] [stderr] 33 | | .collect::<()>(); [INFO] [stderr] | |_________________________^ [INFO] [stderr] | [INFO] [stderr] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stderr] [INFO] [stderr] warning: `rusty_primes` (bin "rusty_primes" test) generated 2 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.34s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/rusty_primes-f3aa4faec03e866a) [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" "3b8e3decbcb5ef0e93f81cd0c53e1ab776cae78ec7730484054b298da9fb18f7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3b8e3decbcb5ef0e93f81cd0c53e1ab776cae78ec7730484054b298da9fb18f7", kill_on_drop: false }` [INFO] [stdout] 3b8e3decbcb5ef0e93f81cd0c53e1ab776cae78ec7730484054b298da9fb18f7