[INFO] cloning repository https://github.com/bodagovsky/LFUcache [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bodagovsky/LFUcache" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbodagovsky%2FLFUcache", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbodagovsky%2FLFUcache'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c30840f7492a657be08f520ac7fa707dcecb6d72 [INFO] checking bodagovsky/LFUcache against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbodagovsky%2FLFUcache" "/workspace/builds/worker-3/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/bodagovsky/LFUcache 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/bodagovsky/LFUcache [INFO] finished tweaking git repo https://github.com/bodagovsky/LFUcache [INFO] tweaked toml for git repo https://github.com/bodagovsky/LFUcache written to /workspace/builds/worker-3/source/Cargo.toml [INFO] crate git repo https://github.com/bodagovsky/LFUcache 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 2e961a135e325bc3398eb1eb4f5166232534eb3aaceae9e03598ad4b4a99c4fe [INFO] running `Command { std: "docker" "start" "-a" "2e961a135e325bc3398eb1eb4f5166232534eb3aaceae9e03598ad4b4a99c4fe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2e961a135e325bc3398eb1eb4f5166232534eb3aaceae9e03598ad4b4a99c4fe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2e961a135e325bc3398eb1eb4f5166232534eb3aaceae9e03598ad4b4a99c4fe", kill_on_drop: false }` [INFO] [stdout] 2e961a135e325bc3398eb1eb4f5166232534eb3aaceae9e03598ad4b4a99c4fe [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 529f00b3b0a41f534a3b04f75db7e227bafc51f55e174bc635b284a5a50b571f [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "529f00b3b0a41f534a3b04f75db7e227bafc51f55e174bc635b284a5a50b571f", kill_on_drop: false }` [INFO] [stderr] Checking lfu v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: module `LFU` should have a snake case name [INFO] [stdout] --> src/cache.rs:1:9 [INFO] [stdout] | [INFO] [stdout] 1 | pub mod LFU { [INFO] [stdout] | ^^^ help: convert the identifier to snake case: `lfu` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/cache.rs:46:13 [INFO] [stdout] | [INFO] [stdout] 46 | write!(f, "length: {}\n", self.len); [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] = 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/cache.rs:47:13 [INFO] [stdout] | [INFO] [stdout] 47 | write!(f, "capacity: {}\n", self.cap); [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: unused `Result` that must be used [INFO] [stdout] --> src/cache.rs:52:17 [INFO] [stdout] | [INFO] [stdout] 52 | / write!( [INFO] [stdout] 53 | | f, [INFO] [stdout] 54 | | "[ key: {}, value: {} ]", [INFO] [stdout] 55 | | ch.borrow().key, [INFO] [stdout] 56 | | ch.borrow().val [INFO] [stdout] 57 | | ); [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: module `LFU` should have a snake case name [INFO] [stdout] --> src/cache.rs:1:9 [INFO] [stdout] | [INFO] [stdout] 1 | pub mod LFU { [INFO] [stdout] | ^^^ help: convert the identifier to snake case: `lfu` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/cache.rs:46:13 [INFO] [stdout] | [INFO] [stdout] 46 | write!(f, "length: {}\n", self.len); [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] = 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/cache.rs:47:13 [INFO] [stdout] | [INFO] [stdout] 47 | write!(f, "capacity: {}\n", self.cap); [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: unused `Result` that must be used [INFO] [stdout] --> src/cache.rs:52:17 [INFO] [stdout] | [INFO] [stdout] 52 | / write!( [INFO] [stdout] 53 | | f, [INFO] [stdout] 54 | | "[ key: {}, value: {} ]", [INFO] [stdout] 55 | | ch.borrow().key, [INFO] [stdout] 56 | | ch.borrow().val [INFO] [stdout] 57 | | ); [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: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.13s [INFO] running `Command { std: "docker" "inspect" "529f00b3b0a41f534a3b04f75db7e227bafc51f55e174bc635b284a5a50b571f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "529f00b3b0a41f534a3b04f75db7e227bafc51f55e174bc635b284a5a50b571f", kill_on_drop: false }` [INFO] [stdout] 529f00b3b0a41f534a3b04f75db7e227bafc51f55e174bc635b284a5a50b571f