[INFO] cloning repository https://github.com/sigpher/rust_book
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sigpher/rust_book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsigpher%2Frust_book", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsigpher%2Frust_book'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9cff653aa41d400fc7d1ec9d976c71a0de290474
[INFO] testing sigpher/rust_book against 1.93.0 for beta-1.94-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsigpher%2Frust_book" "/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/sigpher/rust_book
[INFO] finished tweaking git repo https://github.com/sigpher/rust_book
[INFO] tweaked toml for git repo https://github.com/sigpher/rust_book written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sigpher/rust_book on toolchain 1.93.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.93.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sigpher/rust_book 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" "+1.93.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1.93.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 528c17dd0e76721ed9a7286ca10ec1e194e93557ac7954db7d2f591a35f80fd5
[INFO] running `Command { std: "docker" "start" "-a" "528c17dd0e76721ed9a7286ca10ec1e194e93557ac7954db7d2f591a35f80fd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "528c17dd0e76721ed9a7286ca10ec1e194e93557ac7954db7d2f591a35f80fd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "528c17dd0e76721ed9a7286ca10ec1e194e93557ac7954db7d2f591a35f80fd5", kill_on_drop: false }`
[INFO] [stdout] 528c17dd0e76721ed9a7286ca10ec1e194e93557ac7954db7d2f591a35f80fd5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1.93.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] acd516bae3a6620daabd9a1efa6ec146c7c5295d7228114f041423442f918150
[INFO] running `Command { std: "docker" "start" "-a" "acd516bae3a6620daabd9a1efa6ec146c7c5295d7228114f041423442f918150", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling ch05 v0.1.0 (/opt/rustwide/workdir/ch05)
[INFO] [stderr]    Compiling ch07 v0.1.0 (/opt/rustwide/workdir/ch07)
[INFO] [stderr]    Compiling ch06 v0.1.0 (/opt/rustwide/workdir/ch06)
[INFO] [stderr]    Compiling ch12 v0.1.0 (/opt/rustwide/workdir/ch12)
[INFO] [stderr]    Compiling ch15 v0.1.0 (/opt/rustwide/workdir/ch15)
[INFO] [stderr]    Compiling ch16 v0.1.0 (/opt/rustwide/workdir/ch16)
[INFO] [stderr]    Compiling demo v0.1.0 (/opt/rustwide/workdir/demo)
[INFO] [stderr]    Compiling ch10 v0.1.0 (/opt/rustwide/workdir/ch10)
[INFO] [stderr]    Compiling ch08 v0.1.0 (/opt/rustwide/workdir/ch08)
[INFO] [stderr]    Compiling ch04 v0.1.0 (/opt/rustwide/workdir/ch04)
[INFO] [stderr]    Compiling ch03 v0.1.0 (/opt/rustwide/workdir/ch03)
[INFO] [stderr]    Compiling ch09 v0.1.0 (/opt/rustwide/workdir/ch09)
[INFO] [stderr]    Compiling ch11 v0.1.0 (/opt/rustwide/workdir/ch11)
[INFO] [stderr]    Compiling ch14 v0.1.0 (/opt/rustwide/workdir/ch14)
[INFO] [stderr]    Compiling ch01 v0.1.0 (/opt/rustwide/workdir/ch01)
[INFO] [stdout] warning: function `find_number` is never used
[INFO] [stdout]   --> ch04/src/main.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn find_number(numbers:&[u8],num:u8)->usize{
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> ch11/src/lib.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]   --> ch11/src/lib.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | mod tests {
[INFO] [stdout]    | ^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `deliver_order` is never used
[INFO] [stdout]   --> ch07/src/lib.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn deliver_order() {}
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fix_incorrect_order` is never used
[INFO] [stdout]   --> ch07/src/lib.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn fix_incorrect_order() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cook_order` is never used
[INFO] [stdout]   --> ch07/src/lib.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn cook_order() {}
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f1`
[INFO] [stdout]   --> ch03/src/main.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let f1 = 2f64;
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_f1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f2`
[INFO] [stdout]   --> ch03/src/main.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let f2 = 3f32;
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_f2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tup`
[INFO] [stdout]   --> ch03/src/main.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let tup = (500, 6.4, true);
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_tup`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arr`
[INFO] [stdout]   --> ch03/src/main.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let arr = [1, 2, 3, 4, 5, 6];
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_arr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `reference_cycles::list` and `tracker`
[INFO] [stdout]   --> ch15/src/main.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | use ch15::{reference_cycles::list, tracker};
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Color` and `Point`
[INFO] [stdout]  --> ch05/src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ch05::{Color, Point, Rectangle, User};
[INFO] [stdout]   |            ^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_spaces`
[INFO] [stdout]   --> ch06/src/main.rs:33:20
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub fn move_player(num_spaces: u8) {}
[INFO] [stdout]    |                    ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_spaces`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling ch13 v0.1.0 (/opt/rustwide/workdir/ch13)
[INFO] [stderr]    Compiling ch02 v0.1.0 (/opt/rustwide/workdir/ch02)
[INFO] [stdout] warning: unused variable: `unwrap_number`
[INFO] [stdout]   --> ch13/src/main.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let unwrap_number = number.yes_or_else(|| list[random_number]);
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unwrap_number`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `width` is never read
[INFO] [stdout]   --> ch13/src/main.rs:98:5
[INFO] [stdout]    |
[INFO] [stdout] 97 | struct Rectangle<T> {
[INFO] [stdout]    |        --------- field in this struct
[INFO] [stdout] 98 |     width: T,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Rectangle` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.57s
[INFO] running `Command { std: "docker" "inspect" "acd516bae3a6620daabd9a1efa6ec146c7c5295d7228114f041423442f918150", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acd516bae3a6620daabd9a1efa6ec146c7c5295d7228114f041423442f918150", kill_on_drop: false }`
[INFO] [stdout] acd516bae3a6620daabd9a1efa6ec146c7c5295d7228114f041423442f918150
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1.93.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5623cbe68021680220d0d1cbe76b434db844e936b9895ed277eaa8b12bf90fe1
[INFO] running `Command { std: "docker" "start" "-a" "5623cbe68021680220d0d1cbe76b434db844e936b9895ed277eaa8b12bf90fe1", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stdout] warning: function `deliver_order` is never used
[INFO] [stdout]   --> ch07/src/lib.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn deliver_order() {}
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fix_incorrect_order` is never used
[INFO] [stdout]   --> ch07/src/lib.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn fix_incorrect_order() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cook_order` is never used
[INFO] [stdout]   --> ch07/src/lib.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn cook_order() {}
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> ch11/src/lib.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]   --> ch11/src/lib.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | mod tests {
[INFO] [stdout]    | ^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ch01 v0.1.0 (/opt/rustwide/workdir/ch01)
[INFO] [stderr]    Compiling ch03 v0.1.0 (/opt/rustwide/workdir/ch03)
[INFO] [stderr]    Compiling ch05 v0.1.0 (/opt/rustwide/workdir/ch05)
[INFO] [stderr]    Compiling ch10 v0.1.0 (/opt/rustwide/workdir/ch10)
[INFO] [stderr]    Compiling ch12 v0.1.0 (/opt/rustwide/workdir/ch12)
[INFO] [stderr]    Compiling ch15 v0.1.0 (/opt/rustwide/workdir/ch15)
[INFO] [stderr]    Compiling ch16 v0.1.0 (/opt/rustwide/workdir/ch16)
[INFO] [stderr]    Compiling ch07 v0.1.0 (/opt/rustwide/workdir/ch07)
[INFO] [stderr]    Compiling ch06 v0.1.0 (/opt/rustwide/workdir/ch06)
[INFO] [stderr]    Compiling demo v0.1.0 (/opt/rustwide/workdir/demo)
[INFO] [stderr]    Compiling ch04 v0.1.0 (/opt/rustwide/workdir/ch04)
[INFO] [stderr]    Compiling ch02 v0.1.0 (/opt/rustwide/workdir/ch02)
[INFO] [stdout] warning: unused imports: `reference_cycles::list` and `tracker`
[INFO] [stdout]   --> ch15/src/main.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | use ch15::{reference_cycles::list, tracker};
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `deliver_order` is never used
[INFO] [stdout]   --> ch07/src/lib.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn deliver_order() {}
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fix_incorrect_order` is never used
[INFO] [stdout]   --> ch07/src/lib.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn fix_incorrect_order() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cook_order` is never used
[INFO] [stdout]   --> ch07/src/lib.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn cook_order() {}
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_spaces`
[INFO] [stdout]   --> ch06/src/main.rs:33:20
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub fn move_player(num_spaces: u8) {}
[INFO] [stdout]    |                    ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_spaces`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_number` is never used
[INFO] [stdout]   --> ch04/src/main.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn find_number(numbers:&[u8],num:u8)->usize{
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f1`
[INFO] [stdout]   --> ch03/src/main.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let f1 = 2f64;
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_f1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f2`
[INFO] [stdout]   --> ch03/src/main.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let f2 = 3f32;
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_f2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tup`
[INFO] [stdout]   --> ch03/src/main.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let tup = (500, 6.4, true);
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_tup`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arr`
[INFO] [stdout]   --> ch03/src/main.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let arr = [1, 2, 3, 4, 5, 6];
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_arr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Color` and `Point`
[INFO] [stdout]  --> ch05/src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ch05::{Color, Point, Rectangle, User};
[INFO] [stdout]   |            ^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ch13 v0.1.0 (/opt/rustwide/workdir/ch13)
[INFO] [stderr]    Compiling ch11 v0.1.0 (/opt/rustwide/workdir/ch11)
[INFO] [stderr]    Compiling ch08 v0.1.0 (/opt/rustwide/workdir/ch08)
[INFO] [stderr]    Compiling ch09 v0.1.0 (/opt/rustwide/workdir/ch09)
[INFO] [stdout] warning: unused variable: `unwrap_number`
[INFO] [stdout]   --> ch13/src/main.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let unwrap_number = number.yes_or_else(|| list[random_number]);
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unwrap_number`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `width` is never read
[INFO] [stdout]   --> ch13/src/main.rs:98:5
[INFO] [stdout]    |
[INFO] [stdout] 97 | struct Rectangle<T> {
[INFO] [stdout]    |        --------- field in this struct
[INFO] [stdout] 98 |     width: T,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Rectangle` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ch14 v0.1.0 (/opt/rustwide/workdir/ch14)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.79s
[INFO] running `Command { std: "docker" "inspect" "5623cbe68021680220d0d1cbe76b434db844e936b9895ed277eaa8b12bf90fe1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5623cbe68021680220d0d1cbe76b434db844e936b9895ed277eaa8b12bf90fe1", kill_on_drop: false }`
[INFO] [stdout] 5623cbe68021680220d0d1cbe76b434db844e936b9895ed277eaa8b12bf90fe1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1.93.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 12873d4d47a4b0cd65d7c37bfa8846edfb3669a7967a273a1fca28911e1ea448
[INFO] running `Command { std: "docker" "start" "-a" "12873d4d47a4b0cd65d7c37bfa8846edfb3669a7967a273a1fca28911e1ea448", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr] warning: function `deliver_order` is never used
[INFO] [stderr]   --> ch07/src/lib.rs:12:4
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn deliver_order() {}
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `fix_incorrect_order` is never used
[INFO] [stderr]   --> ch07/src/lib.rs:15:8
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn fix_incorrect_order() {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `cook_order` is never used
[INFO] [stderr]   --> ch07/src/lib.rs:20:8
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn cook_order() {}
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `ch07` (lib) generated 3 warnings
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> ch11/src/lib.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stderr]   --> ch11/src/lib.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | mod tests {
[INFO] [stderr]    | ^^^^^^^^^
[INFO] [stderr]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Color` and `Point`
[INFO] [stderr]  --> ch05/src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | use ch05::{Color, Point, Rectangle, User};
[INFO] [stderr]   |            ^^^^^  ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `reference_cycles::list` and `tracker`
[INFO] [stderr]   --> ch15/src/main.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 | use ch15::{reference_cycles::list, tracker};
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `ch11` (lib) generated 1 warning (run `cargo fix --lib -p ch11` to apply 1 suggestion)
[INFO] [stderr] warning: `ch05` (bin "ch05" test) generated 1 warning (run `cargo fix --bin "ch05" -p ch05 --tests` to apply 1 suggestion)
[INFO] [stderr] warning: `ch15` (bin "ch15" test) generated 1 warning (run `cargo fix --bin "ch15" -p ch15 --tests` to apply 1 suggestion)
[INFO] [stderr] warning: unused variable: `num_spaces`
[INFO] [stderr]   --> ch06/src/main.rs:33:20
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub fn move_player(num_spaces: u8) {}
[INFO] [stderr]    |                    ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_spaces`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unwrap_number`
[INFO] [stderr]   --> ch13/src/main.rs:48:9
[INFO] [stderr]    |
[INFO] [stderr] 48 |     let unwrap_number = number.yes_or_else(|| list[random_number]);
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unwrap_number`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `width` is never read
[INFO] [stderr]   --> ch13/src/main.rs:98:5
[INFO] [stderr]    |
[INFO] [stderr] 97 | struct Rectangle<T> {
[INFO] [stderr]    |        --------- field in this struct
[INFO] [stderr] 98 |     width: T,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Rectangle` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `ch06` (bin "ch06" test) generated 1 warning (run `cargo fix --bin "ch06" -p ch06 --tests` to apply 1 suggestion)
[INFO] [stderr] warning: `ch13` (bin "ch13" test) generated 2 warnings (run `cargo fix --bin "ch13" -p ch13 --tests` to apply 1 suggestion)
[INFO] [stderr] warning: `ch07` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr] warning: unused variable: `f1`
[INFO] [stderr]   --> ch03/src/main.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let f1 = 2f64;
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_f1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f2`
[INFO] [stderr]   --> ch03/src/main.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let f2 = 3f32;
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_f2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tup`
[INFO] [stderr]   --> ch03/src/main.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let tup = (500, 6.4, true);
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_tup`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `arr`
[INFO] [stderr]   --> ch03/src/main.rs:29:9
[INFO] [stderr]    |
[INFO] [stderr] 29 |     let arr = [1, 2, 3, 4, 5, 6];
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_arr`
[INFO] [stderr] 
[INFO] [stderr] warning: function `find_number` is never used
[INFO] [stderr]   --> ch04/src/main.rs:17:4
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn find_number(numbers:&[u8],num:u8)->usize{
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `ch03` (bin "ch03" test) generated 4 warnings (run `cargo fix --bin "ch03" -p ch03 --tests` to apply 4 suggestions)
[INFO] [stderr] warning: `ch04` (bin "ch04" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/ch01-4f61fd0e816fbe89)
[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 src/lib.rs (/opt/rustwide/target/debug/deps/ch02-c299fb383f4d7d4e)
[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 src/main.rs (/opt/rustwide/target/debug/deps/ch02-555fbc76f2b65a53)
[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 src/main.rs (/opt/rustwide/target/debug/deps/ch03-5cdf6cec7a3f880c)
[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 src/main.rs (/opt/rustwide/target/debug/deps/ch04-4aa2e980aa268451)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ch05-5b38ca0cd00fd402)
[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 src/main.rs (/opt/rustwide/target/debug/deps/ch05-a4b99b99ca483022)
[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 src/lib.rs (/opt/rustwide/target/debug/deps/ch06-868e40fe83cdcb05)
[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 src/main.rs (/opt/rustwide/target/debug/deps/ch06-4be1ce81712d55b6)
[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 src/lib.rs (/opt/rustwide/target/debug/deps/ch07-edcdc14d8c14e042)
[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 src/main.rs (/opt/rustwide/target/debug/deps/ch07-740e77d227444905)
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/ch08-5b76df9cc4338207)
[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 src/main.rs (/opt/rustwide/target/debug/deps/ch09-5c0c38d7855ad7dc)
[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 src/lib.rs (/opt/rustwide/target/debug/deps/ch10-3842e8a79df6e6bd)
[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 src/main.rs (/opt/rustwide/target/debug/deps/ch10-2899b0b9f3ff142d)
[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 src/lib.rs (/opt/rustwide/target/debug/deps/ch11-42653dfd68c5594c)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::exploration ... ok
[INFO] [stderr] error: test failed, to rerun pass `-p ch11 --lib`
[INFO] [stdout] test tests::another ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::another stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'tests::another' (41) panicked at ch11/src/lib.rs:23:9:
[INFO] [stdout] assertion `left == right` failed
[INFO] [stdout]   left: 4
[INFO] [stdout]  right: 5
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5dfef47e5c82 - std::backtrace_rs::backtrace::libunwind::trace::h90e89fac33585832
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5dfef47e5c82 - std::backtrace_rs::backtrace::trace_unsynchronized::heebcf2380a8e7359
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5dfef47e5c82 - std::sys::backtrace::_print_fmt::hdf3e2a22d2f810db
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:68:9
[INFO] [stdout]    3:     0x5dfef47e5c82 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hac1d885928ba8582
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:38:26
[INFO] [stdout]    4:     0x5dfef47f59a7 - core::fmt::rt::Argument::fmt::h6901eb7c19abebe8
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5dfef47f59a7 - core::fmt::write::h83ebb4d32483be9e
[INFO] [stdout]    6:     0x5dfef47b4a36 - std::io::default_write_fmt::h751a79cdae495f10
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5dfef47b4a36 - std::io::Write::write_fmt::h9ef514f8700ff7b2
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x5dfef47c5049 - std::sys::backtrace::BacktraceLock::print::hcc2e1a3ac996c911
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:41:9
[INFO] [stdout]    9:     0x5dfef47c5049 - std::panicking::default_hook::{{closure}}::h8e9c4d1276f0925f
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5dfef47c4ee1 - std::panicking::default_hook::h2b2078d38b534dfb
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5dfef478967e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h39d051e7dedac6a7
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x5dfef478967e - test::test_main_with_exit_callback::{{closure}}::h4b005fe75814c302
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5dfef47c52c2 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hd426070722c13cbf
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x5dfef47c52c2 - std::panicking::panic_with_hook::h39b739724e701bfd
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x5dfef47c5108 - std::panicking::panic_handler::{{closure}}::he540c4833054e458
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x5dfef47c06d9 - std::sys::backtrace::__rust_end_short_backtrace::hfa179d89deec8aed
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:176:18
[INFO] [stdout]   17:     0x5dfef47a97fd - __rustc[d131491b17107b07]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x5dfef47fcdec - core::panicking::panic_fmt::ha564519d657d9c46
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5dfef47fcd03 - core::panicking::assert_failed_inner::h6fc38e43be639d33
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/panicking.rs:439:17
[INFO] [stdout]   20:     0x5dfef47fcb8e - core::panicking::assert_failed::h1b59b321e00be21b
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/panicking.rs:394:5
[INFO] [stdout]   21:     0x5dfef4769bce - ch11::tests::another::h791d4b3bb9ad3133
[INFO] [stdout]                                at /opt/rustwide/workdir/ch11/src/lib.rs:23:9
[INFO] [stdout]   22:     0x5dfef4769bf7 - ch11::tests::another::{{closure}}::h22aeb49309e4601a
[INFO] [stdout]                                at /opt/rustwide/workdir/ch11/src/lib.rs:21:17
[INFO] [stdout]   23:     0x5dfef4769cc6 - core::ops::function::FnOnce::call_once::hb71aeb81affd847b
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5dfef47894ab - core::ops::function::FnOnce::call_once::h0217b30cfdee2e67
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x5dfef47894ab - test::__rust_begin_short_backtrace::h6d98714a1e28f556
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x5dfef479ce3a - test::run_test_in_process::{{closure}}::he2c70d2634d3a3cc
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x5dfef479ce3a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h40a0a825bcf17fdd
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x5dfef479ce3a - std::panicking::catch_unwind::do_call::h6c8eb5dd6e7b5975
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:581:40
[INFO] [stdout]   29:     0x5dfef479ce3a - std::panicking::catch_unwind::h55455eac2972ad1e
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:544:19
[INFO] [stdout]   30:     0x5dfef479ce3a - std::panic::catch_unwind::h0025465150a5e558
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x5dfef479ce3a - test::run_test_in_process::hb61e682f9b630fbc
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x5dfef479ce3a - test::run_test::{{closure}}::hc2c2a7a38ab176e2
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x5dfef47770d4 - test::run_test::{{closure}}::ha91867b85cd2a911
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x5dfef47770d4 - std::sys::backtrace::__rust_begin_short_backtrace::ha00a9fe02049c339
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:160:18
[INFO] [stdout]   35:     0x5dfef477aa02 - std::thread::lifecycle::spawn_unchecked::{{closure}}::{{closure}}::hd629fba9153dfb55
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/thread/lifecycle.rs:92:13
[INFO] [stdout]   36:     0x5dfef477aa02 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h4189018816a5c5d9
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x5dfef477aa02 - std::panicking::catch_unwind::do_call::hf9fcdbca3c2e9877
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:581:40
[INFO] [stdout]   38:     0x5dfef477aa02 - std::panicking::catch_unwind::h97b92d88631c7c64
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:544:19
[INFO] [stdout]   39:     0x5dfef477aa02 - std::panic::catch_unwind::ha77cdbb68e725e5e
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x5dfef477aa02 - std::thread::lifecycle::spawn_unchecked::{{closure}}::h511f05bc1a132253
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/thread/lifecycle.rs:90:26
[INFO] [stdout]   41:     0x5dfef477aa02 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h6b68b31e9b685cb8
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x5dfef47bbd6f - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h22a27d165e4e871d
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   43:     0x5dfef47bbd6f - std::sys::thread::unix::Thread::new::thread_start::h45cc87bb053add0f
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/thread/unix.rs:118:17
[INFO] [stdout]   44:     0x78cab7e4caa4 - <unknown>
[INFO] [stdout]   45:     0x78cab7ed9a64 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::another
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "12873d4d47a4b0cd65d7c37bfa8846edfb3669a7967a273a1fca28911e1ea448", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12873d4d47a4b0cd65d7c37bfa8846edfb3669a7967a273a1fca28911e1ea448", kill_on_drop: false }`
[INFO] [stdout] 12873d4d47a4b0cd65d7c37bfa8846edfb3669a7967a273a1fca28911e1ea448
