[INFO] cloning repository https://github.com/shbroster/card-games [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shbroster/card-games" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshbroster%2Fcard-games", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshbroster%2Fcard-games'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 9ba022ade9ed13e1426d015862a25dd1e193816e [INFO] building shbroster/card-games 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%2Fshbroster%2Fcard-games" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/shbroster/card-games 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/shbroster/card-games [INFO] finished tweaking git repo https://github.com/shbroster/card-games [INFO] tweaked toml for git repo https://github.com/shbroster/card-games written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/shbroster/card-games 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 3287141d413257a0e61e7f9515a2d17bc75f5cb0c80788bb99b47a2c18be4969 [INFO] running `Command { std: "docker" "start" "-a" "3287141d413257a0e61e7f9515a2d17bc75f5cb0c80788bb99b47a2c18be4969", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3287141d413257a0e61e7f9515a2d17bc75f5cb0c80788bb99b47a2c18be4969", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3287141d413257a0e61e7f9515a2d17bc75f5cb0c80788bb99b47a2c18be4969", kill_on_drop: false }` [INFO] [stdout] 3287141d413257a0e61e7f9515a2d17bc75f5cb0c80788bb99b47a2c18be4969 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 24ba33ec30a0a0912cb2fa8e242f0796d90d758fb685f6b0e4b2b759ff25820c [INFO] running `Command { std: "docker" "start" "-a" "24ba33ec30a0a0912cb2fa8e242f0796d90d758fb685f6b0e4b2b759ff25820c", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.86 [INFO] [stderr] Compiling getrandom v0.2.2 [INFO] [stderr] Compiling ppv-lite86 v0.2.10 [INFO] [stderr] Compiling card v0.1.0 (/opt/rustwide/workdir/card) [INFO] [stdout] warning: field `id` is never read [INFO] [stdout] --> card/src/card.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 13 | pub struct TestCard { [INFO] [stdout] | -------- field in this struct [INFO] [stdout] 14 | pub id: u8, [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling rand_core v0.6.1 [INFO] [stderr] Compiling rand_chacha v0.3.0 [INFO] [stderr] Compiling rand v0.8.3 [INFO] [stderr] Compiling shuffle v0.1.0 (/opt/rustwide/workdir/shuffle) [INFO] [stderr] Compiling top_trumps v0.1.0 (/opt/rustwide/workdir/top_trumps) [INFO] [stdout] warning: trait `LenAndSwap` is never used [INFO] [stdout] --> shuffle/src/lib.rs:4:7 [INFO] [stdout] | [INFO] [stdout] 4 | trait LenAndSwap { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `shuffle` is never used [INFO] [stdout] --> shuffle/src/lib.rs:13:4 [INFO] [stdout] | [INFO] [stdout] 13 | fn shuffle(values: &mut T, mut rng: R) [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `name` and `fields` are never read [INFO] [stdout] --> top_trumps/src/lib.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 6 | struct TopTrumpCard { [INFO] [stdout] | ------------ fields in this struct [INFO] [stdout] 7 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 8 | fields: HashMap, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.96s [INFO] running `Command { std: "docker" "inspect" "24ba33ec30a0a0912cb2fa8e242f0796d90d758fb685f6b0e4b2b759ff25820c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "24ba33ec30a0a0912cb2fa8e242f0796d90d758fb685f6b0e4b2b759ff25820c", kill_on_drop: false }` [INFO] [stdout] 24ba33ec30a0a0912cb2fa8e242f0796d90d758fb685f6b0e4b2b759ff25820c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] a77a115ad98d8c095714c2bc81516e12c4e10ea74abe3cae508769c5714a863a [INFO] running `Command { std: "docker" "start" "-a" "a77a115ad98d8c095714c2bc81516e12c4e10ea74abe3cae508769c5714a863a", kill_on_drop: false }` [INFO] [stdout] warning: field `id` is never read [INFO] [stdout] --> card/src/card.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 13 | pub struct TestCard { [INFO] [stdout] | -------- field in this struct [INFO] [stdout] 14 | pub id: u8, [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling card v0.1.0 (/opt/rustwide/workdir/card) [INFO] [stdout] warning: trait `LenAndSwap` is never used [INFO] [stdout] --> shuffle/src/lib.rs:4:7 [INFO] [stdout] | [INFO] [stdout] 4 | trait LenAndSwap { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `shuffle` is never used [INFO] [stdout] --> shuffle/src/lib.rs:13:4 [INFO] [stdout] | [INFO] [stdout] 13 | fn shuffle(values: &mut T, mut rng: R) [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `name` and `fields` are never read [INFO] [stdout] --> top_trumps/src/lib.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 6 | struct TopTrumpCard { [INFO] [stdout] | ------------ fields in this struct [INFO] [stdout] 7 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 8 | fields: HashMap, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling shuffle v0.1.0 (/opt/rustwide/workdir/shuffle) [INFO] [stderr] Compiling top_trumps v0.1.0 (/opt/rustwide/workdir/top_trumps) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> shuffle/src/lib.rs:48:13 [INFO] [stdout] | [INFO] [stdout] 48 | let mut rng = rand::thread_rng(); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.19s [INFO] running `Command { std: "docker" "inspect" "a77a115ad98d8c095714c2bc81516e12c4e10ea74abe3cae508769c5714a863a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a77a115ad98d8c095714c2bc81516e12c4e10ea74abe3cae508769c5714a863a", kill_on_drop: false }` [INFO] [stdout] a77a115ad98d8c095714c2bc81516e12c4e10ea74abe3cae508769c5714a863a