[INFO] cloning repository https://github.com/samas69420/rustyquiz [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/samas69420/rustyquiz" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamas69420%2Frustyquiz", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamas69420%2Frustyquiz'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 68349a807dd25ed43295b33a273a217c0fdbb9ba [INFO] building samas69420/rustyquiz against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamas69420%2Frustyquiz" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/samas69420/rustyquiz on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/samas69420/rustyquiz [INFO] finished tweaking git repo https://github.com/samas69420/rustyquiz [INFO] tweaked toml for git repo https://github.com/samas69420/rustyquiz written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/samas69420/rustyquiz 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "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-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 64a023cbb26d6cdf38aeb4710e3f7374d659b1892e397d29b545f68cdcadeaa1 [INFO] running `Command { std: "docker" "start" "-a" "64a023cbb26d6cdf38aeb4710e3f7374d659b1892e397d29b545f68cdcadeaa1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "64a023cbb26d6cdf38aeb4710e3f7374d659b1892e397d29b545f68cdcadeaa1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "64a023cbb26d6cdf38aeb4710e3f7374d659b1892e397d29b545f68cdcadeaa1", kill_on_drop: false }` [INFO] [stdout] 64a023cbb26d6cdf38aeb4710e3f7374d659b1892e397d29b545f68cdcadeaa1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ebfa75bd3a299822dd4f1579f4f17aca867f59112b308a13486eb29c28cddf42 [INFO] running `Command { std: "docker" "start" "-a" "ebfa75bd3a299822dd4f1579f4f17aca867f59112b308a13486eb29c28cddf42", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.108 [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 quiz v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: value assigned to `risp` is never read [INFO] [stdout] --> src/lib.rs:25:13 [INFO] [stdout] | [INFO] [stdout] 25 | let mut risp = String::new(); [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] [stdout] warning: value assigned to `tipo` is never read [INFO] [stdout] --> src/lib.rs:59:24 [INFO] [stdout] | [INFO] [stdout] 59 | let mut tipo = false; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: comparison is useless due to type limits [INFO] [stdout] --> src/lib.rs:35:32 [INFO] [stdout] | [INFO] [stdout] 35 | if risp_num < l && risp_num >= 0 { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_comparisons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/domanda.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 24 | write!(f,"{}\n",self.testo); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/domanda.rs:27:13 [INFO] [stdout] | [INFO] [stdout] 27 | write!(f,"{}-{}\n",indice,risposta); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.12s [INFO] running `Command { std: "docker" "inspect" "ebfa75bd3a299822dd4f1579f4f17aca867f59112b308a13486eb29c28cddf42", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ebfa75bd3a299822dd4f1579f4f17aca867f59112b308a13486eb29c28cddf42", kill_on_drop: false }` [INFO] [stdout] ebfa75bd3a299822dd4f1579f4f17aca867f59112b308a13486eb29c28cddf42 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 14093f9f5814ae759bbfd9e4e6e73aa44d0f4d1534352db409fcf2bc348750c1 [INFO] running `Command { std: "docker" "start" "-a" "14093f9f5814ae759bbfd9e4e6e73aa44d0f4d1534352db409fcf2bc348750c1", kill_on_drop: false }` [INFO] [stderr] Compiling quiz v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: value assigned to `risp` is never read [INFO] [stdout] --> src/lib.rs:25:13 [INFO] [stdout] | [INFO] [stdout] 25 | let mut risp = String::new(); [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] [stdout] warning: value assigned to `tipo` is never read [INFO] [stdout] --> src/lib.rs:59:24 [INFO] [stdout] | [INFO] [stdout] 59 | let mut tipo = false; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: comparison is useless due to type limits [INFO] [stdout] --> src/lib.rs:35:32 [INFO] [stdout] | [INFO] [stdout] 35 | if risp_num < l && risp_num >= 0 { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_comparisons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/domanda.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 24 | write!(f,"{}\n",self.testo); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/domanda.rs:27:13 [INFO] [stdout] | [INFO] [stdout] 27 | write!(f,"{}-{}\n",indice,risposta); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `risp` is never read [INFO] [stdout] --> src/lib.rs:25:13 [INFO] [stdout] | [INFO] [stdout] 25 | let mut risp = String::new(); [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] [stdout] warning: value assigned to `tipo` is never read [INFO] [stdout] --> src/lib.rs:59:24 [INFO] [stdout] | [INFO] [stdout] 59 | let mut tipo = false; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: comparison is useless due to type limits [INFO] [stdout] --> src/lib.rs:35:32 [INFO] [stdout] | [INFO] [stdout] 35 | if risp_num < l && risp_num >= 0 { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_comparisons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/domanda.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 24 | write!(f,"{}\n",self.testo); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/domanda.rs:27:13 [INFO] [stdout] | [INFO] [stdout] 27 | write!(f,"{}-{}\n",indice,risposta); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.50s [INFO] running `Command { std: "docker" "inspect" "14093f9f5814ae759bbfd9e4e6e73aa44d0f4d1534352db409fcf2bc348750c1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "14093f9f5814ae759bbfd9e4e6e73aa44d0f4d1534352db409fcf2bc348750c1", kill_on_drop: false }` [INFO] [stdout] 14093f9f5814ae759bbfd9e4e6e73aa44d0f4d1534352db409fcf2bc348750c1