[INFO] cloning repository https://github.com/jhessin/rust-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jhessin/rust-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjhessin%2Frust-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjhessin%2Frust-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 397b7bd83e6113231faf031cd9044b859b62a79a
[INFO] testing jhessin/rust-playground against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjhessin%2Frust-playground" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jhessin/rust-playground on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jhessin/rust-playground
[INFO] finished tweaking git repo https://github.com/jhessin/rust-playground
[INFO] tweaked toml for git repo https://github.com/jhessin/rust-playground written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/jhessin/rust-playground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a24c7444e35e0fb07fdffaf2c3300be22422b7df7d112a65ba1d9510abb91567
[INFO] running `Command { std: "docker" "start" "-a" "a24c7444e35e0fb07fdffaf2c3300be22422b7df7d112a65ba1d9510abb91567", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a24c7444e35e0fb07fdffaf2c3300be22422b7df7d112a65ba1d9510abb91567", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a24c7444e35e0fb07fdffaf2c3300be22422b7df7d112a65ba1d9510abb91567", kill_on_drop: false }`
[INFO] [stdout] a24c7444e35e0fb07fdffaf2c3300be22422b7df7d112a65ba1d9510abb91567
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60cd1cb320a517855fec0cf79e96b99442c14d340e56746f9c400de6bebcd834
[INFO] running `Command { std: "docker" "start" "-a" "60cd1cb320a517855fec0cf79e96b99442c14d340e56746f9c400de6bebcd834", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling hello_macro v0.1.0 (/opt/rustwide/workdir/hello_macro)
[INFO] [stderr]    Compiling blog v0.1.0 (/opt/rustwide/workdir/blog)
[INFO] [stderr]    Compiling ch15-4 v0.1.0 (/opt/rustwide/workdir/ch15-4)
[INFO] [stderr]    Compiling ch18-2 v0.1.0 (/opt/rustwide/workdir/ch18-2)
[INFO] [stderr]    Compiling ch18-1 v0.1.0 (/opt/rustwide/workdir/ch18-1)
[INFO] [stderr]    Compiling ch16-1-threads v0.1.0 (/opt/rustwide/workdir/ch16-1-threads)
[INFO] [stderr]    Compiling smart-ptrs v0.1.0 (/opt/rustwide/workdir/smart-ptrs)
[INFO] [stderr]    Compiling ch19-3 v0.1.0 (/opt/rustwide/workdir/ch19-3)
[INFO] [stderr]    Compiling custom-smart-ptr v0.1.0 (/opt/rustwide/workdir/custom-smart-ptr)
[INFO] [stderr]    Compiling ch15-6 v0.1.0 (/opt/rustwide/workdir/ch15-6)
[INFO] [stderr]    Compiling ch19-1 v0.1.0 (/opt/rustwide/workdir/ch19-1)
[INFO] [stderr]    Compiling ch16-3-mutex v0.1.0 (/opt/rustwide/workdir/ch16-3-mutex)
[INFO] [stderr]    Compiling ch15-5 v0.1.0 (/opt/rustwide/workdir/ch15-5)
[INFO] [stderr]    Compiling ch19-2 v0.1.0 (/opt/rustwide/workdir/ch19-2)
[INFO] [stderr]    Compiling ch16-2-messages v0.1.0 (/opt/rustwide/workdir/ch16-2-messages)
[INFO] [stderr]    Compiling ch18-3 v0.1.0 (/opt/rustwide/workdir/ch18-3)
[INFO] [stderr]    Compiling ch17-2 v0.1.0 (/opt/rustwide/workdir/ch17-2)
[INFO] [stderr]    Compiling ch19-4 v0.1.0 (/opt/rustwide/workdir/ch19-4)
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> ch18-2/src/main.rs:140:8
[INFO] [stdout]     |
[INFO] [stdout] 140 |     if let x = my_vec {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ch17-3 v0.1.0 (/opt/rustwide/workdir/ch17-3)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> ch18-3/src/main.rs:157:10
[INFO] [stdout]     |
[INFO] [stdout] 157 |         1...5 => println!("one through five"),
[INFO] [stdout]     |          ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> ch18-3/src/main.rs:185:12
[INFO] [stdout]     |
[INFO] [stdout] 185 |         'a'...'j' => println!(
[INFO] [stdout]     |            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> ch18-3/src/main.rs:189:12
[INFO] [stdout]     |
[INFO] [stdout] 189 |         'k'...'z' => println!(
[INFO] [stdout]     |            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]     --> ch18-3/src/main.rs:1012:36
[INFO] [stdout]      |
[INFO] [stdout] 1012 |                 id: id_variable @ 3...7,
[INFO] [stdout]      |                                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]     --> ch18-3/src/main.rs:1018:36
[INFO] [stdout]      |
[INFO] [stdout] 1018 |             Message::Hello { id: 10...12 } => println!(
[INFO] [stdout]      |                                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling hello_macro_derive v0.1.0 (/opt/rustwide/workdir/hello_macro_derive)
[INFO] [stderr]    Compiling ch19-6 v0.1.0 (/opt/rustwide/workdir/ch19-6)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.02s
[INFO] running `Command { std: "docker" "inspect" "60cd1cb320a517855fec0cf79e96b99442c14d340e56746f9c400de6bebcd834", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60cd1cb320a517855fec0cf79e96b99442c14d340e56746f9c400de6bebcd834", kill_on_drop: false }`
[INFO] [stdout] 60cd1cb320a517855fec0cf79e96b99442c14d340e56746f9c400de6bebcd834
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1b43f1751ac182fd04146f6d419234251979fa107fdbb013eaa84e7b1fadf1ee
[INFO] running `Command { std: "docker" "start" "-a" "1b43f1751ac182fd04146f6d419234251979fa107fdbb013eaa84e7b1fadf1ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling smart-ptrs v0.1.0 (/opt/rustwide/workdir/smart-ptrs)
[INFO] [stderr]    Compiling ch15-4 v0.1.0 (/opt/rustwide/workdir/ch15-4)
[INFO] [stderr]    Compiling ch18-3 v0.1.0 (/opt/rustwide/workdir/ch18-3)
[INFO] [stderr]    Compiling ch16-3-mutex v0.1.0 (/opt/rustwide/workdir/ch16-3-mutex)
[INFO] [stderr]    Compiling ch18-2 v0.1.0 (/opt/rustwide/workdir/ch18-2)
[INFO] [stderr]    Compiling ch16-1-threads v0.1.0 (/opt/rustwide/workdir/ch16-1-threads)
[INFO] [stderr]    Compiling ch17-2 v0.1.0 (/opt/rustwide/workdir/ch17-2)
[INFO] [stderr]    Compiling ch19-1 v0.1.0 (/opt/rustwide/workdir/ch19-1)
[INFO] [stderr]    Compiling blog v0.1.0 (/opt/rustwide/workdir/blog)
[INFO] [stderr]    Compiling ch19-2 v0.1.0 (/opt/rustwide/workdir/ch19-2)
[INFO] [stderr]    Compiling ch19-3 v0.1.0 (/opt/rustwide/workdir/ch19-3)
[INFO] [stderr]    Compiling hello_macro v0.1.0 (/opt/rustwide/workdir/hello_macro)
[INFO] [stderr]    Compiling custom-smart-ptr v0.1.0 (/opt/rustwide/workdir/custom-smart-ptr)
[INFO] [stderr]    Compiling ch16-2-messages v0.1.0 (/opt/rustwide/workdir/ch16-2-messages)
[INFO] [stderr]    Compiling ch15-5 v0.1.0 (/opt/rustwide/workdir/ch15-5)
[INFO] [stderr]    Compiling ch15-6 v0.1.0 (/opt/rustwide/workdir/ch15-6)
[INFO] [stderr]    Compiling ch19-4 v0.1.0 (/opt/rustwide/workdir/ch19-4)
[INFO] [stderr]    Compiling ch18-1 v0.1.0 (/opt/rustwide/workdir/ch18-1)
[INFO] [stderr]    Compiling ch17-3 v0.1.0 (/opt/rustwide/workdir/ch17-3)
[INFO] [stderr]    Compiling hello_macro_derive v0.1.0 (/opt/rustwide/workdir/hello_macro_derive)
[INFO] [stderr]    Compiling ch19-6 v0.1.0 (/opt/rustwide/workdir/ch19-6)
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> ch18-2/src/main.rs:140:8
[INFO] [stdout]     |
[INFO] [stdout] 140 |     if let x = my_vec {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> ch18-3/src/main.rs:157:10
[INFO] [stdout]     |
[INFO] [stdout] 157 |         1...5 => println!("one through five"),
[INFO] [stdout]     |          ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> ch18-3/src/main.rs:185:12
[INFO] [stdout]     |
[INFO] [stdout] 185 |         'a'...'j' => println!(
[INFO] [stdout]     |            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> ch18-3/src/main.rs:189:12
[INFO] [stdout]     |
[INFO] [stdout] 189 |         'k'...'z' => println!(
[INFO] [stdout]     |            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]     --> ch18-3/src/main.rs:1012:36
[INFO] [stdout]      |
[INFO] [stdout] 1012 |                 id: id_variable @ 3...7,
[INFO] [stdout]      |                                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]     --> ch18-3/src/main.rs:1018:36
[INFO] [stdout]      |
[INFO] [stdout] 1018 |             Message::Hello { id: 10...12 } => println!(
[INFO] [stdout]      |                                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.74s
[INFO] running `Command { std: "docker" "inspect" "1b43f1751ac182fd04146f6d419234251979fa107fdbb013eaa84e7b1fadf1ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b43f1751ac182fd04146f6d419234251979fa107fdbb013eaa84e7b1fadf1ee", kill_on_drop: false }`
[INFO] [stdout] 1b43f1751ac182fd04146f6d419234251979fa107fdbb013eaa84e7b1fadf1ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 11a4eff19e60a68fcd63fa4dce46d0f1b4493e3eb45b60ca9bc6e43ebabb8a99
[INFO] running `Command { std: "docker" "start" "-a" "11a4eff19e60a68fcd63fa4dce46d0f1b4493e3eb45b60ca9bc6e43ebabb8a99", kill_on_drop: false }`
[INFO] [stderr] warning: irrefutable `if let` pattern
[INFO] [stderr]    --> ch18-2/src/main.rs:140:8
[INFO] [stderr]     |
[INFO] [stderr] 140 |     if let x = my_vec {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stderr]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stderr]     = help: consider replacing the `if let` with a `let`
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> ch18-3/src/main.rs:157:10
[INFO] [stderr]     |
[INFO] [stderr] 157 |         1...5 => println!("one through five"),
[INFO] [stderr]     |          ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> ch18-3/src/main.rs:185:12
[INFO] [stderr]     |
[INFO] [stderr] 185 |         'a'...'j' => println!(
[INFO] [stderr]     |            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> ch18-3/src/main.rs:189:12
[INFO] [stderr]     |
[INFO] [stderr] 189 |         'k'...'z' => println!(
[INFO] [stderr]     |            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]     --> ch18-3/src/main.rs:1012:36
[INFO] [stderr]      |
[INFO] [stderr] 1012 |                 id: id_variable @ 3...7,
[INFO] [stderr]      |                                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]      |
[INFO] [stderr]      = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]     --> ch18-3/src/main.rs:1018:36
[INFO] [stderr]      |
[INFO] [stderr] 1018 |             Message::Hello { id: 10...12 } => println!(
[INFO] [stderr]      |                                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]      |
[INFO] [stderr]      = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `ch18-2` (bin "ch18-2" test) generated 1 warning
[INFO] [stderr] warning: `ch18-3` (bin "ch18-3" test) generated 5 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/blog-3b2b27760b530d32)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ch15_4-309a45a657ca2187)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ch15_5-0e3904c94213a925)
[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] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_sends_an_over_75_percent_warning_message ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ch15_6-a3a418dd0d3963f9)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ch16_1_threads-66ecd46e806d48a8)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ch16_2_messages-b59c6b80331b4323)
[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] [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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ch16_3_mutex-ce657459904b3651)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ch17_2-c8bd8631db98b1c2)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ch17_3-e6ff796bf304a830)
[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] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ch18_1-5396cc6a2e87ac8f)
[INFO] [stdout] test approved_post_has_matching_content ... ok
[INFO] [stdout] test draft_can_be_submitted_for_review ... ok
[INFO] [stdout] test review_post_can_be_approved ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ch18_2-2c456cbff55d3a21)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ch18_3-71fc388e34f3ae27)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ch19_1-a62db15cc3ad9d0d)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ch19_2-9c128297bc8fbd57)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ch19_3-65146e7d4ade1745)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ch19_4-62b7751b8c4cb7ae)
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ch19_6-0cff6fa3ed9fb740)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/custom_smart_ptr-8cf92d6892eadb76)
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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] [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] [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] [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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hello_macro-27c2fca1bb0fdc2e)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hello_macro_derive-ef3156ece49fe875)
[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] [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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/smart_ptrs-592886a889747110)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr]    Doc-tests blog
[INFO] [stdout] test tests::coercion_test ... ok
[INFO] [stdout] test tests::box_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[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] [stderr]    Doc-tests ch17-3
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests hello_macro
[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] [stderr]    Doc-tests hello_macro_derive
[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] [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" "11a4eff19e60a68fcd63fa4dce46d0f1b4493e3eb45b60ca9bc6e43ebabb8a99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11a4eff19e60a68fcd63fa4dce46d0f1b4493e3eb45b60ca9bc6e43ebabb8a99", kill_on_drop: false }`
[INFO] [stdout] 11a4eff19e60a68fcd63fa4dce46d0f1b4493e3eb45b60ca9bc6e43ebabb8a99