[INFO] cloning repository https://github.com/francescoaristei/hash_table [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/francescoaristei/hash_table" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrancescoaristei%2Fhash_table", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrancescoaristei%2Fhash_table'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 49b96c81dfccb22bbdfc19212a5b30a963b398e6 [INFO] testing francescoaristei/hash_table against 1.99.0-beta.8 for beta-1.100-2 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrancescoaristei%2Fhash_table" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/francescoaristei/hash_table [INFO] finished tweaking git repo https://github.com/francescoaristei/hash_table [INFO] tweaked toml for git repo https://github.com/francescoaristei/hash_table written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/francescoaristei/hash_table on toolchain 1.99.0-beta.8 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/francescoaristei/hash_table 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }` [INFO] [stdout] 2a99b9d04ce41ace01ec14a862d49e0695de17b8c7319406f8752a672465be26 [INFO] running `Command { std: "docker" "start" "2a99b9d04ce41ace01ec14a862d49e0695de17b8c7319406f8752a672465be26", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2a99b9d04ce41ace01ec14a862d49e0695de17b8c7319406f8752a672465be26", kill_on_drop: false }` [INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2a99b9d04ce41ace01ec14a862d49e0695de17b8c7319406f8752a672465be26" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2a99b9d04ce41ace01ec14a862d49e0695de17b8c7319406f8752a672465be26", kill_on_drop: false }` [INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2a99b9d04ce41ace01ec14a862d49e0695de17b8c7319406f8752a672465be26" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] Compiling hash_table v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::rc::Rc` [INFO] [stdout] --> src/main.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::rc::Rc; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Number`, `Boolean`, and `Nil` are never constructed [INFO] [stdout] --> src/main.rs:79:5 [INFO] [stdout] | [INFO] [stdout] 78 | enum Value { [INFO] [stdout] | ----- variants in this enum [INFO] [stdout] 79 | Number(f64), [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 80 | Boolean(bool), [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 81 | String(String), [INFO] [stdout] 82 | Nil [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `table_delete` is never used [INFO] [stdout] --> src/main.rs:180:8 [INFO] [stdout] | [INFO] [stdout] 118 | impl<'a> Table<'a> { [INFO] [stdout] | ------------------ method in this implementation [INFO] [stdout] ... [INFO] [stdout] 180 | fn table_delete(&mut self, key: &Key) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing [INFO] [stdout] --> src/main.rs:103:29 [INFO] [stdout] | [INFO] [stdout] 103 | fn get_key(&'a self) -> &Option> { [INFO] [stdout] | -- ^^^^^^^^^^^^--^^ [INFO] [stdout] | | | | [INFO] [stdout] | | | the same lifetime is named here [INFO] [stdout] | | the same lifetime is elided here [INFO] [stdout] | the lifetime is named here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 103 | fn get_key(&'a self) -> &'a Option> { [INFO] [stdout] | ++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s [INFO] running `Command { std: "docker" "inspect" "2a99b9d04ce41ace01ec14a862d49e0695de17b8c7319406f8752a672465be26", kill_on_drop: false }` [INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2a99b9d04ce41ace01ec14a862d49e0695de17b8c7319406f8752a672465be26" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] Compiling hash_table v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::rc::Rc` [INFO] [stdout] --> src/main.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::rc::Rc; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Number`, `Boolean`, and `Nil` are never constructed [INFO] [stdout] --> src/main.rs:79:5 [INFO] [stdout] | [INFO] [stdout] 78 | enum Value { [INFO] [stdout] | ----- variants in this enum [INFO] [stdout] 79 | Number(f64), [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 80 | Boolean(bool), [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 81 | String(String), [INFO] [stdout] 82 | Nil [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `table_delete` is never used [INFO] [stdout] --> src/main.rs:180:8 [INFO] [stdout] | [INFO] [stdout] 118 | impl<'a> Table<'a> { [INFO] [stdout] | ------------------ method in this implementation [INFO] [stdout] ... [INFO] [stdout] 180 | fn table_delete(&mut self, key: &Key) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing [INFO] [stdout] --> src/main.rs:103:29 [INFO] [stdout] | [INFO] [stdout] 103 | fn get_key(&'a self) -> &Option> { [INFO] [stdout] | -- ^^^^^^^^^^^^--^^ [INFO] [stdout] | | | | [INFO] [stdout] | | | the same lifetime is named here [INFO] [stdout] | | the same lifetime is elided here [INFO] [stdout] | the lifetime is named here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 103 | fn get_key(&'a self) -> &'a Option> { [INFO] [stdout] | ++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.26s [INFO] running `Command { std: "docker" "inspect" "2a99b9d04ce41ace01ec14a862d49e0695de17b8c7319406f8752a672465be26", kill_on_drop: false }` [INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2a99b9d04ce41ace01ec14a862d49e0695de17b8c7319406f8752a672465be26" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `std::rc::Rc` [INFO] [stderr] --> src/main.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::rc::Rc; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: variants `Number`, `Boolean`, and `Nil` are never constructed [INFO] [stderr] --> src/main.rs:79:5 [INFO] [stderr] | [INFO] [stderr] 78 | enum Value { [INFO] [stderr] | ----- variants in this enum [INFO] [stderr] 79 | Number(f64), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] 80 | Boolean(bool), [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] 81 | String(String), [INFO] [stderr] 82 | Nil [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: method `table_delete` is never used [INFO] [stderr] --> src/main.rs:180:8 [INFO] [stderr] | [INFO] [stderr] 118 | impl<'a> Table<'a> { [INFO] [stderr] | ------------------ method in this implementation [INFO] [stderr] ... [INFO] [stderr] 180 | fn table_delete(&mut self, key: &Key) { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: eliding a lifetime that's named elsewhere is confusing [INFO] [stderr] --> src/main.rs:103:29 [INFO] [stderr] | [INFO] [stderr] 103 | fn get_key(&'a self) -> &Option> { [INFO] [stderr] | -- ^^^^^^^^^^^^--^^ [INFO] [stderr] | | | | [INFO] [stderr] | | | the same lifetime is named here [INFO] [stderr] | | the same lifetime is elided here [INFO] [stderr] | the lifetime is named here [INFO] [stderr] | [INFO] [stderr] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stderr] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stderr] help: consistently use `'a` [INFO] [stderr] | [INFO] [stderr] 103 | fn get_key(&'a self) -> &'a Option> { [INFO] [stderr] | ++ [INFO] [stderr] [INFO] [stderr] warning: `hash_table` (bin "hash_table" test) generated 4 warnings (run `cargo fix --bin "hash_table" -p hash_table --tests` to apply 2 suggestions) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/hash_table-bb87d119958872a0) [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" "2a99b9d04ce41ace01ec14a862d49e0695de17b8c7319406f8752a672465be26", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2a99b9d04ce41ace01ec14a862d49e0695de17b8c7319406f8752a672465be26", kill_on_drop: false }` [INFO] [stdout] 2a99b9d04ce41ace01ec14a862d49e0695de17b8c7319406f8752a672465be26