[INFO] cloning repository https://github.com/dbrgn/rusty-santa [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dbrgn/rusty-santa" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdbrgn%2Frusty-santa", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdbrgn%2Frusty-santa'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 27a2d55bd71ee570ed194d5e7304922ad8def43c [INFO] checking dbrgn/rusty-santa against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdbrgn%2Frusty-santa" "/workspace/builds/worker-115/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-115/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/dbrgn/rusty-santa on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/dbrgn/rusty-santa [INFO] finished tweaking git repo https://github.com/dbrgn/rusty-santa [INFO] tweaked toml for git repo https://github.com/dbrgn/rusty-santa written to /workspace/builds/worker-115/source/Cargo.toml [INFO] crate git repo https://github.com/dbrgn/rusty-santa already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded rprompt v1.0.3 [INFO] [stderr] Downloaded colored v1.5.3 [INFO] [stderr] Downloaded libc v0.2.32 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 70aa7002d3082e5e8c58bc055c653271ac74faad2be58200c2bff069a0004ee6 [INFO] running `Command { std: "docker" "start" "-a" "70aa7002d3082e5e8c58bc055c653271ac74faad2be58200c2bff069a0004ee6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "70aa7002d3082e5e8c58bc055c653271ac74faad2be58200c2bff069a0004ee6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "70aa7002d3082e5e8c58bc055c653271ac74faad2be58200c2bff069a0004ee6", kill_on_drop: false }` [INFO] [stdout] 70aa7002d3082e5e8c58bc055c653271ac74faad2be58200c2bff069a0004ee6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ed8e83a53020ac68f1fd82670c24e0dd0f5a3dadf76b1b9bad40c206fa3cf371 [INFO] running `Command { std: "docker" "start" "-a" "ed8e83a53020ac68f1fd82670c24e0dd0f5a3dadf76b1b9bad40c206fa3cf371", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Checking libc v0.2.32 [INFO] [stderr] Checking lazy_static v0.2.9 [INFO] [stderr] Checking log v0.3.8 [INFO] [stderr] Checking utf8-ranges v1.0.0 [INFO] [stderr] Checking regex-syntax v0.4.1 [INFO] [stderr] Checking rprompt v1.0.3 [INFO] [stderr] Checking unreachable v1.0.0 [INFO] [stderr] Checking colored v1.5.3 [INFO] [stderr] Checking thread_local v0.3.4 [INFO] [stderr] Checking memchr v1.0.2 [INFO] [stderr] Checking rand v0.3.17 [INFO] [stderr] Checking aho-corasick v0.6.3 [INFO] [stderr] Checking rusty-santa v0.1.0 (/opt/rustwide/workdir/rusty-santa) [INFO] [stdout] warning: associated function is never used: `get` [INFO] [stdout] --> rusty-santa/src/lib.rs:64:12 [INFO] [stdout] | [INFO] [stdout] 64 | pub fn get(&self, x: &str, y: &str) -> bool { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `size` [INFO] [stdout] --> rusty-santa/src/lib.rs:103:12 [INFO] [stdout] | [INFO] [stdout] 103 | pub fn size(&self) -> usize { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking regex v0.2.2 [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking env_logger v0.4.3 [INFO] [stderr] Checking rusty-santa-cli v0.1.0 (/opt/rustwide/workdir/rusty-santa-cli) [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> rusty-santa/src/lib.rs:357:13 [INFO] [stdout] | [INFO] [stdout] 357 | for i in 0..1000 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> rusty-santa/src/lib.rs:279:13 [INFO] [stdout] | [INFO] [stdout] 279 | let mut matrix = Matrix::new(keys); [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: unused `Result` that must be used [INFO] [stdout] --> rusty-santa/src/lib.rs:358:13 [INFO] [stdout] | [INFO] [stdout] 358 | group.assign(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 35.01s [INFO] running `Command { std: "docker" "inspect" "ed8e83a53020ac68f1fd82670c24e0dd0f5a3dadf76b1b9bad40c206fa3cf371", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ed8e83a53020ac68f1fd82670c24e0dd0f5a3dadf76b1b9bad40c206fa3cf371", kill_on_drop: false }` [INFO] [stdout] ed8e83a53020ac68f1fd82670c24e0dd0f5a3dadf76b1b9bad40c206fa3cf371