[INFO] cloning repository https://github.com/neal-o-r/rust-scrabble [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/neal-o-r/rust-scrabble" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneal-o-r%2Frust-scrabble", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneal-o-r%2Frust-scrabble'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4e20da62df8e873b1300cad0ccb9c5e121952900 [INFO] testing neal-o-r/rust-scrabble against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneal-o-r%2Frust-scrabble" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/neal-o-r/rust-scrabble [INFO] finished tweaking git repo https://github.com/neal-o-r/rust-scrabble [INFO] tweaked toml for git repo https://github.com/neal-o-r/rust-scrabble written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/neal-o-r/rust-scrabble on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/neal-o-r/rust-scrabble 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c24537103a46860942b00d7ee9ffded9679806802fc0ba7d720e8d90e5cc32bf [INFO] running `Command { std: "docker" "start" "-a" "c24537103a46860942b00d7ee9ffded9679806802fc0ba7d720e8d90e5cc32bf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c24537103a46860942b00d7ee9ffded9679806802fc0ba7d720e8d90e5cc32bf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c24537103a46860942b00d7ee9ffded9679806802fc0ba7d720e8d90e5cc32bf", kill_on_drop: false }` [INFO] [stdout] c24537103a46860942b00d7ee9ffded9679806802fc0ba7d720e8d90e5cc32bf [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 542d2c64de432dd88ee3bc60407c8b9aa53a1fe039f83eb4a3a50fb53153e3d9 [INFO] running `Command { std: "docker" "start" "-a" "542d2c64de432dd88ee3bc60407c8b9aa53a1fe039f83eb4a3a50fb53153e3d9", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.112 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling serde v1.0.132 [INFO] [stderr] Compiling regex-automata v0.1.10 [INFO] [stderr] Compiling ryu v1.0.9 [INFO] [stderr] Compiling encode_unicode v0.3.6 [INFO] [stderr] Compiling unicode-width v0.1.9 [INFO] [stderr] Compiling either v1.6.1 [INFO] [stderr] Compiling itertools v0.9.0 [INFO] [stderr] Compiling csv-core v0.1.10 [INFO] [stderr] Compiling getrandom v0.2.3 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling dirs v1.0.5 [INFO] [stderr] Compiling colored v2.0.0 [INFO] [stderr] Compiling term v0.5.2 [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 bstr v0.2.17 [INFO] [stderr] Compiling csv v1.1.6 [INFO] [stderr] Compiling prettytable-rs v0.8.0 [INFO] [stderr] Compiling scrabble v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::cmp` [INFO] [stdout] --> src/racks.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::cmp; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::HashMap` [INFO] [stdout] --> src/score.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::collections::HashMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/plays.rs:58:16 [INFO] [stdout] | [INFO] [stdout] 58 | mut plays: &mut Vec) -> () { [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] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/racks.rs:61:32 [INFO] [stdout] | [INFO] [stdout] 61 | rack: &str, mut results: &mut HashSet) { [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/score.rs:19:13 [INFO] [stdout] | [INFO] [stdout] 19 | Err(e) => 0 [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/score.rs:32:19 [INFO] [stdout] | [INFO] [stdout] 32 | fn letters_played(b: &Board, p: &Play) -> i32 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `word` is assigned to, but never used [INFO] [stdout] --> src/score.rs:73:13 [INFO] [stdout] | [INFO] [stdout] 73 | let mut word = 1; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_word` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `across` and `down` are never read [INFO] [stdout] --> src/board.rs:24:5 [INFO] [stdout] | [INFO] [stdout] 22 | pub struct Board { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 23 | pub board: Vec, [INFO] [stdout] 24 | across: isize, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 25 | down: isize, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Board` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.86s [INFO] running `Command { std: "docker" "inspect" "542d2c64de432dd88ee3bc60407c8b9aa53a1fe039f83eb4a3a50fb53153e3d9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "542d2c64de432dd88ee3bc60407c8b9aa53a1fe039f83eb4a3a50fb53153e3d9", kill_on_drop: false }` [INFO] [stdout] 542d2c64de432dd88ee3bc60407c8b9aa53a1fe039f83eb4a3a50fb53153e3d9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 4ad9311ada3ecefe40bd67c939422cf96975f99a9145e6adb57b85d9a7adec14 [INFO] running `Command { std: "docker" "start" "-a" "4ad9311ada3ecefe40bd67c939422cf96975f99a9145e6adb57b85d9a7adec14", kill_on_drop: false }` [INFO] [stderr] Compiling scrabble v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::cmp` [INFO] [stdout] --> src/racks.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::cmp; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::HashMap` [INFO] [stdout] --> src/score.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::collections::HashMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/plays.rs:58:16 [INFO] [stdout] | [INFO] [stdout] 58 | mut plays: &mut Vec) -> () { [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] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/racks.rs:61:32 [INFO] [stdout] | [INFO] [stdout] 61 | rack: &str, mut results: &mut HashSet) { [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/score.rs:19:13 [INFO] [stdout] | [INFO] [stdout] 19 | Err(e) => 0 [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/score.rs:32:19 [INFO] [stdout] | [INFO] [stdout] 32 | fn letters_played(b: &Board, p: &Play) -> i32 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `word` is assigned to, but never used [INFO] [stdout] --> src/score.rs:73:13 [INFO] [stdout] | [INFO] [stdout] 73 | let mut word = 1; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_word` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `across` and `down` are never read [INFO] [stdout] --> src/board.rs:24:5 [INFO] [stdout] | [INFO] [stdout] 22 | pub struct Board { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 23 | pub board: Vec, [INFO] [stdout] 24 | across: isize, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 25 | down: isize, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Board` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.44s [INFO] running `Command { std: "docker" "inspect" "4ad9311ada3ecefe40bd67c939422cf96975f99a9145e6adb57b85d9a7adec14", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4ad9311ada3ecefe40bd67c939422cf96975f99a9145e6adb57b85d9a7adec14", kill_on_drop: false }` [INFO] [stdout] 4ad9311ada3ecefe40bd67c939422cf96975f99a9145e6adb57b85d9a7adec14 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] c79741632ed470294f1e2cac06b3e6497235c19f733d4d8e6770ac614e189977 [INFO] running `Command { std: "docker" "start" "-a" "c79741632ed470294f1e2cac06b3e6497235c19f733d4d8e6770ac614e189977", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `std::cmp` [INFO] [stderr] --> src/racks.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::cmp; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::HashMap` [INFO] [stderr] --> src/score.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::collections::HashMap; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/plays.rs:58:16 [INFO] [stderr] | [INFO] [stderr] 58 | mut plays: &mut Vec) -> () { [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/racks.rs:61:32 [INFO] [stderr] | [INFO] [stderr] 61 | rack: &str, mut results: &mut HashSet) { [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/score.rs:19:13 [INFO] [stderr] | [INFO] [stderr] 19 | Err(e) => 0 [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `b` [INFO] [stderr] --> src/score.rs:32:19 [INFO] [stderr] | [INFO] [stderr] 32 | fn letters_played(b: &Board, p: &Play) -> i32 { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stderr] [INFO] [stderr] warning: variable `word` is assigned to, but never used [INFO] [stderr] --> src/score.rs:73:13 [INFO] [stderr] | [INFO] [stderr] 73 | let mut word = 1; [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_word` instead [INFO] [stderr] [INFO] [stderr] warning: fields `across` and `down` are never read [INFO] [stderr] --> src/board.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 22 | pub struct Board { [INFO] [stderr] | ----- fields in this struct [INFO] [stderr] 23 | pub board: Vec, [INFO] [stderr] 24 | across: isize, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] 25 | down: isize, [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `Board` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `scrabble` (bin "scrabble" test) generated 8 warnings (run `cargo fix --bin "scrabble" --tests` to apply 4 suggestions) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/scrabble-f0317cd5e216c3cd) [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" "c79741632ed470294f1e2cac06b3e6497235c19f733d4d8e6770ac614e189977", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c79741632ed470294f1e2cac06b3e6497235c19f733d4d8e6770ac614e189977", kill_on_drop: false }` [INFO] [stdout] c79741632ed470294f1e2cac06b3e6497235c19f733d4d8e6770ac614e189977