[INFO] cloning repository https://github.com/qiekn/rustp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/qiekn/rustp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqiekn%2Frustp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqiekn%2Frustp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d9a89506cc7526bcf8c83a3c61a14fbaf535e91e
[INFO] fixing qiekn/rustp against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqiekn%2Frustp" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/qiekn/rustp
[INFO] finished tweaking git repo https://github.com/qiekn/rustp
[INFO] tweaked toml for git repo https://github.com/qiekn/rustp written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/qiekn/rustp on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/qiekn/rustp 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" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] b7ff74a510c924af8c07eac728adfd35654531615028759a2d4fd3beda972ca6
[INFO] running `Command { std: "docker" "start" "b7ff74a510c924af8c07eac728adfd35654531615028759a2d4fd3beda972ca6", 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" "b7ff74a510c924af8c07eac728adfd35654531615028759a2d4fd3beda972ca6" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7ff74a510c924af8c07eac728adfd35654531615028759a2d4fd3beda972ca6", 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=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b7ff74a510c924af8c07eac728adfd35654531615028759a2d4fd3beda972ca6" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=start=2015", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-by-examples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/bin/03_1_0_structure.rs:38:3
[INFO] [stdout]    |
[INFO] [stdout] 38 |   (w * h)
[INFO] [stdout]    |   ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 38 -   (w * h)
[INFO] [stdout] 38 +   w * h 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `QIEKN` is never constructed
[INFO] [stdout]  --> src/bin/03_1_0_structure.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct QIEKN(i32, i32, f64);
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `age` are never read
[INFO] [stdout]  --> src/bin/03_1_0_structure.rs:5:3
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Person {
[INFO] [stdout]   |        ------ fields in this struct
[INFO] [stdout] 5 |   name: String,
[INFO] [stdout]   |   ^^^^
[INFO] [stdout] 6 |   age: u8,
[INFO] [stdout]   |   ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/bin/01_2_1_debug.rs:2:18
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Structrue(i32);
[INFO] [stdout]   |        --------- ^^^
[INFO] [stdout]   |        |
[INFO] [stdout]   |        field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `Structrue` has a derived impl for the trait `Debug`, 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: field `0` is never read
[INFO] [stdout]  --> src/bin/01_2_1_debug.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Deep(Structrue);
[INFO] [stdout]   |        ---- ^^^^^^^^^
[INFO] [stdout]   |        |
[INFO] [stdout]   |        field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `Deep` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `yet_another_array`
[INFO] [stdout]   --> src/bin/02_3_0_array.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 |   let yet_another_array: [i32; 500] = [-1; 500];
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_yet_another_array`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/bin/03_1_0_structure.rs:38:3
[INFO] [stdout]    |
[INFO] [stdout] 38 |   (w * h)
[INFO] [stdout]    |   ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 38 -   (w * h)
[INFO] [stdout] 38 +   w * h 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `QIEKN` is never constructed
[INFO] [stdout]  --> src/bin/03_1_0_structure.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct QIEKN(i32, i32, f64);
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `age` are never read
[INFO] [stdout]  --> src/bin/03_1_0_structure.rs:5:3
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Person {
[INFO] [stdout]   |        ------ fields in this struct
[INFO] [stdout] 5 |   name: String,
[INFO] [stdout]   |   ^^^^
[INFO] [stdout] 6 |   age: u8,
[INFO] [stdout]   |   ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `sex` and `weight` are never read
[INFO] [stdout]  --> src/bin/01_2_4_format.rs:4:3
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Persion {
[INFO] [stdout]   |        ------- fields in this struct
[INFO] [stdout] 4 |   sex: &'static str,
[INFO] [stdout]   |   ^^^
[INFO] [stdout] 5 |   age: i32,
[INFO] [stdout] 6 |   weight: f64,
[INFO] [stdout]   |   ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `contents` is never read
[INFO] [stdout]  --> src/bin/10_2_0_struct_visibility.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |   pub struct ClosedBox<T> {
[INFO] [stdout]   |              --------- field in this struct
[INFO] [stdout] 9 |     contents: T,
[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 `struct_test` is never used
[INFO] [stdout]    --> src/bin/08_5_1_match.rs:120:4
[INFO] [stdout]     |
[INFO] [stdout] 120 | fn struct_test() {
[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: `write`
[INFO] [stdout]  --> src/bin/01_2_2_display.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::{self, write};
[INFO] [stdout]   |                      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/bin/02_0_0_tuples.rs:56:21
[INFO] [stdout]    |
[INFO] [stdout] 56 |   let mut qiekn_a = (5i32);
[INFO] [stdout]    |                     ^    ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 56 -   let mut qiekn_a = (5i32);
[INFO] [stdout] 56 +   let mut qiekn_a = 5i32 ;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `yet_another_array`
[INFO] [stdout]   --> src/bin/02_3_0_array.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 |   let yet_another_array: [i32; 500] = [-1; 500];
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_yet_another_array`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `qiekn_a` is never read
[INFO] [stdout]   --> src/bin/02_0_0_tuples.rs:56:21
[INFO] [stdout]    |
[INFO] [stdout] 56 |   let mut qiekn_a = (5i32);
[INFO] [stdout]    |                     ^^^^^^ this value is reassigned later and never used
[INFO] [stdout] 57 |   let qiekn_b = (1i32,);
[INFO] [stdout] 58 |   qiekn_a = qiekn_b.0;
[INFO] [stdout]    |   ------------------- `qiekn_a` is overwritten here before the previous value is read
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `10_5_0_split`
[INFO] [stdout]  --> src/bin/10_5_0_split.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | // see: 
[INFO] [stdout]   |         ^ consider adding a `main` function to `src/bin/10_5_0_split.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-by-examples` (bin "10_5_0_split") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: field `contents` is never read
[INFO] [stdout]  --> src/bin/10_2_0_struct_visibility.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |   pub struct ClosedBox<T> {
[INFO] [stdout]   |              --------- field in this struct
[INFO] [stdout] 9 |     contents: T,
[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: `write`
[INFO] [stdout]  --> src/bin/01_2_2_display.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::{self, write};
[INFO] [stdout]   |                      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/bin/02_0_0_tuples.rs:56:21
[INFO] [stdout]    |
[INFO] [stdout] 56 |   let mut qiekn_a = (5i32);
[INFO] [stdout]    |                     ^    ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 56 -   let mut qiekn_a = (5i32);
[INFO] [stdout] 56 +   let mut qiekn_a = 5i32 ;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `qiekn_a` is never read
[INFO] [stdout]   --> src/bin/02_0_0_tuples.rs:56:21
[INFO] [stdout]    |
[INFO] [stdout] 56 |   let mut qiekn_a = (5i32);
[INFO] [stdout]    |                     ^^^^^^ this value is reassigned later and never used
[INFO] [stdout] 57 |   let qiekn_b = (1i32,);
[INFO] [stdout] 58 |   qiekn_a = qiekn_b.0;
[INFO] [stdout]    |   ------------------- `qiekn_a` is overwritten here before the previous value is read
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b7ff74a510c924af8c07eac728adfd35654531615028759a2d4fd3beda972ca6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7ff74a510c924af8c07eac728adfd35654531615028759a2d4fd3beda972ca6", kill_on_drop: false }`
[INFO] [stdout] b7ff74a510c924af8c07eac728adfd35654531615028759a2d4fd3beda972ca6
