[INFO] cloning repository https://github.com/austinjones/rust-crashcourse [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/austinjones/rust-crashcourse" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faustinjones%2Frust-crashcourse", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faustinjones%2Frust-crashcourse'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6123e3526e9b3fd6c4219929b2daf2b4481cd009 [INFO] checking austinjones/rust-crashcourse against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faustinjones%2Frust-crashcourse" "/workspace/builds/worker-9/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/austinjones/rust-crashcourse on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/austinjones/rust-crashcourse [INFO] finished tweaking git repo https://github.com/austinjones/rust-crashcourse [INFO] tweaked toml for git repo https://github.com/austinjones/rust-crashcourse written to /workspace/builds/worker-9/source/Cargo.toml [INFO] crate git repo https://github.com/austinjones/rust-crashcourse already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: `default-features = [".."]` was found in [features]. Did you mean to use `default = [".."]`? [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] bb8a3f493db35b29ec9cdce68e8adf1cd67aa8c842fba2b6cfe53a804d0d3d9d [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" "bb8a3f493db35b29ec9cdce68e8adf1cd67aa8c842fba2b6cfe53a804d0d3d9d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bb8a3f493db35b29ec9cdce68e8adf1cd67aa8c842fba2b6cfe53a804d0d3d9d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bb8a3f493db35b29ec9cdce68e8adf1cd67aa8c842fba2b6cfe53a804d0d3d9d", kill_on_drop: false }` [INFO] [stdout] bb8a3f493db35b29ec9cdce68e8adf1cd67aa8c842fba2b6cfe53a804d0d3d9d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 4236c17f5ba312696185f7c1e458ed9ca72bdceee7270aad4a8cbf6492287fcb [INFO] running `Command { std: "docker" "start" "-a" "4236c17f5ba312696185f7c1e458ed9ca72bdceee7270aad4a8cbf6492287fcb", kill_on_drop: false }` [INFO] [stderr] warning: `default-features = [".."]` was found in [features]. Did you mean to use `default = [".."]`? [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling proc-macro2 v1.0.19 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.38 [INFO] [stderr] Compiling anyhow v1.0.32 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling thiserror-impl v1.0.20 [INFO] [stderr] Checking thiserror v1.0.20 [INFO] [stderr] Checking rust-crashcourse v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `static_reference` [INFO] [stdout] --> src/lifetimes.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | let static_reference = "foo"; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_static_reference` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `string` [INFO] [stdout] --> src/lifetimes.rs:33:14 [INFO] [stdout] | [INFO] [stdout] 33 | fn use_owned(string: String) {} [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_string` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `data` [INFO] [stdout] --> src/lifetimes.rs:56:17 [INFO] [stdout] | [INFO] [stdout] 56 | fn do_something(data: &mut Vec) { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `data` [INFO] [stdout] --> src/lifetimes.rs:60:19 [INFO] [stdout] | [INFO] [stdout] 60 | fn read_something(data: &Vec) { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `another_borrow` [INFO] [stdout] --> src/lifetimes.rs:88:9 [INFO] [stdout] | [INFO] [stdout] 88 | let another_borrow = borrow.as_ref(); [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_another_borrow` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `extracted` [INFO] [stdout] --> src/lifetimes.rs:96:9 [INFO] [stdout] | [INFO] [stdout] 96 | let extracted = owned_struct.into_value(); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_extracted` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `str` [INFO] [stdout] --> src/traits.rs:37:9 [INFO] [stdout] | [INFO] [stdout] 37 | let str: String = bar.as_foo(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_str` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `str` [INFO] [stdout] --> src/traits.rs:38:9 [INFO] [stdout] | [INFO] [stdout] 38 | let str: usize = bar.as_foo(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_str` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `str` [INFO] [stdout] --> src/traits.rs:68:9 [INFO] [stdout] | [INFO] [stdout] 68 | let str: String = bar.associated_foo(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_str` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `str` [INFO] [stdout] --> src/traits.rs:102:9 [INFO] [stdout] | [INFO] [stdout] 102 | let str: String = AssociatedGenericFoo::::both_foo(&bar); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_str` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `str` [INFO] [stdout] --> src/traits.rs:103:9 [INFO] [stdout] | [INFO] [stdout] 103 | let str: usize = AssociatedGenericFoo::::both_foo(&bar); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_str` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `static_reference` [INFO] [stdout] --> src/lifetimes.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | let static_reference = "foo"; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_static_reference` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `string` [INFO] [stdout] --> src/lifetimes.rs:33:14 [INFO] [stdout] | [INFO] [stdout] 33 | fn use_owned(string: String) {} [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_string` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `data` [INFO] [stdout] --> src/lifetimes.rs:56:17 [INFO] [stdout] | [INFO] [stdout] 56 | fn do_something(data: &mut Vec) { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `data` [INFO] [stdout] --> src/lifetimes.rs:60:19 [INFO] [stdout] | [INFO] [stdout] 60 | fn read_something(data: &Vec) { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `another_borrow` [INFO] [stdout] --> src/lifetimes.rs:88:9 [INFO] [stdout] | [INFO] [stdout] 88 | let another_borrow = borrow.as_ref(); [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_another_borrow` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `extracted` [INFO] [stdout] --> src/lifetimes.rs:96:9 [INFO] [stdout] | [INFO] [stdout] 96 | let extracted = owned_struct.into_value(); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_extracted` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `str` [INFO] [stdout] --> src/traits.rs:37:9 [INFO] [stdout] | [INFO] [stdout] 37 | let str: String = bar.as_foo(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_str` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `str` [INFO] [stdout] --> src/traits.rs:38:9 [INFO] [stdout] | [INFO] [stdout] 38 | let str: usize = bar.as_foo(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_str` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `str` [INFO] [stdout] --> src/traits.rs:68:9 [INFO] [stdout] | [INFO] [stdout] 68 | let str: String = bar.associated_foo(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_str` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `str` [INFO] [stdout] --> src/traits.rs:102:9 [INFO] [stdout] | [INFO] [stdout] 102 | let str: String = AssociatedGenericFoo::::both_foo(&bar); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_str` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `str` [INFO] [stdout] --> src/traits.rs:103:9 [INFO] [stdout] | [INFO] [stdout] 103 | let str: usize = AssociatedGenericFoo::::both_foo(&bar); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_str` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 15.74s [INFO] running `Command { std: "docker" "inspect" "4236c17f5ba312696185f7c1e458ed9ca72bdceee7270aad4a8cbf6492287fcb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4236c17f5ba312696185f7c1e458ed9ca72bdceee7270aad4a8cbf6492287fcb", kill_on_drop: false }` [INFO] [stdout] 4236c17f5ba312696185f7c1e458ed9ca72bdceee7270aad4a8cbf6492287fcb