[INFO] cloning repository https://github.com/Diapolo10/rust-leibniz [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Diapolo10/rust-leibniz" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDiapolo10%2Frust-leibniz", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDiapolo10%2Frust-leibniz'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c92d0213ed38ba00db05afc3b98fa27831f47f4c [INFO] checking Diapolo10/rust-leibniz against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDiapolo10%2Frust-leibniz" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Diapolo10/rust-leibniz on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Diapolo10/rust-leibniz [INFO] finished tweaking git repo https://github.com/Diapolo10/rust-leibniz [INFO] tweaked toml for git repo https://github.com/Diapolo10/rust-leibniz written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/Diapolo10/rust-leibniz 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded crossbeam-queue v0.3.10 [INFO] [stderr] Downloaded crossbeam-deque v0.8.4 [INFO] [stderr] Downloaded crossbeam-epoch v0.9.17 [INFO] [stderr] Downloaded crossbeam-utils v0.8.18 [INFO] [stderr] Downloaded crossbeam-channel v0.5.10 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5e7fdae0d8c454f19cf6bc5c331ac24e9d50aebab1da53500c1aa3478d9e0eea [INFO] running `Command { std: "docker" "start" "-a" "5e7fdae0d8c454f19cf6bc5c331ac24e9d50aebab1da53500c1aa3478d9e0eea", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5e7fdae0d8c454f19cf6bc5c331ac24e9d50aebab1da53500c1aa3478d9e0eea", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5e7fdae0d8c454f19cf6bc5c331ac24e9d50aebab1da53500c1aa3478d9e0eea", kill_on_drop: false }` [INFO] [stdout] 5e7fdae0d8c454f19cf6bc5c331ac24e9d50aebab1da53500c1aa3478d9e0eea [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3985475b82b81df765c7b719f133074acbdae09be0eb4b349e732637607f3aa2 [INFO] running `Command { std: "docker" "start" "-a" "3985475b82b81df765c7b719f133074acbdae09be0eb4b349e732637607f3aa2", kill_on_drop: false }` [INFO] [stderr] Compiling crossbeam-utils v0.8.18 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling libc v0.2.139 [INFO] [stderr] Checking crossbeam-epoch v0.9.17 [INFO] [stderr] Checking crossbeam-queue v0.3.10 [INFO] [stderr] Checking crossbeam-channel v0.5.10 [INFO] [stderr] Checking crossbeam-deque v0.8.4 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking threadpool v1.8.1 [INFO] [stderr] Checking crossbeam v0.8.4 [INFO] [stderr] Checking rust-leibniz v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Vec` is imported redundantly [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::vec::Vec; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Vec` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Vec` is imported redundantly [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::vec::Vec; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Vec` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `pool` [INFO] [stdout] --> src/main.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | let pool = ThreadPool::new(cpu_count as usize); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_pool` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `pool` [INFO] [stdout] --> src/main.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | let pool = ThreadPool::new(cpu_count as usize); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_pool` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.32s [INFO] running `Command { std: "docker" "inspect" "3985475b82b81df765c7b719f133074acbdae09be0eb4b349e732637607f3aa2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3985475b82b81df765c7b719f133074acbdae09be0eb4b349e732637607f3aa2", kill_on_drop: false }` [INFO] [stdout] 3985475b82b81df765c7b719f133074acbdae09be0eb4b349e732637607f3aa2 [INFO] checking Diapolo10/rust-leibniz against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDiapolo10%2Frust-leibniz" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Diapolo10/rust-leibniz on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Diapolo10/rust-leibniz [INFO] finished tweaking git repo https://github.com/Diapolo10/rust-leibniz [INFO] tweaked toml for git repo https://github.com/Diapolo10/rust-leibniz written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/Diapolo10/rust-leibniz 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e1a6f45a6f284dd5647fc481dae2d69d3d95b60cf55e4d9379ada715cc95e80c [INFO] running `Command { std: "docker" "start" "-a" "e1a6f45a6f284dd5647fc481dae2d69d3d95b60cf55e4d9379ada715cc95e80c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e1a6f45a6f284dd5647fc481dae2d69d3d95b60cf55e4d9379ada715cc95e80c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e1a6f45a6f284dd5647fc481dae2d69d3d95b60cf55e4d9379ada715cc95e80c", kill_on_drop: false }` [INFO] [stdout] e1a6f45a6f284dd5647fc481dae2d69d3d95b60cf55e4d9379ada715cc95e80c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4568487225da150f6cfafed2ecd78b28ffc418b72a58d4700a8ce98dfec6cdba [INFO] running `Command { std: "docker" "start" "-a" "4568487225da150f6cfafed2ecd78b28ffc418b72a58d4700a8ce98dfec6cdba", kill_on_drop: false }` [INFO] [stderr] Compiling crossbeam-utils v0.8.18 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling libc v0.2.139 [INFO] [stderr] Checking crossbeam-epoch v0.9.17 [INFO] [stderr] Checking crossbeam-channel v0.5.10 [INFO] [stderr] Checking crossbeam-queue v0.3.10 [INFO] [stderr] Checking crossbeam-deque v0.8.4 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking threadpool v1.8.1 [INFO] [stderr] Checking crossbeam v0.8.4 [INFO] [stderr] Checking rust-leibniz v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Vec` is imported redundantly [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::vec::Vec; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:144:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Vec` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `pool` [INFO] [stdout] --> src/main.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | let pool = ThreadPool::new(cpu_count as usize); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_pool` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Vec` is imported redundantly [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::vec::Vec; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:144:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Vec` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `pool` [INFO] [stdout] --> src/main.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | let pool = ThreadPool::new(cpu_count as usize); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_pool` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.29s [INFO] running `Command { std: "docker" "inspect" "4568487225da150f6cfafed2ecd78b28ffc418b72a58d4700a8ce98dfec6cdba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4568487225da150f6cfafed2ecd78b28ffc418b72a58d4700a8ce98dfec6cdba", kill_on_drop: false }` [INFO] [stdout] 4568487225da150f6cfafed2ecd78b28ffc418b72a58d4700a8ce98dfec6cdba