[INFO] cloning repository https://github.com/Byron/learn-rust-with-gitoxide
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Byron/learn-rust-with-gitoxide" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FByron%2Flearn-rust-with-gitoxide", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FByron%2Flearn-rust-with-gitoxide'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e149600b88db6a35d2d7d42c24fe82a8658963e7
[INFO] checking Byron/learn-rust-with-gitoxide/e149600b88db6a35d2d7d42c24fe82a8658963e7 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FByron%2Flearn-rust-with-gitoxide" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Byron/learn-rust-with-gitoxide on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Byron/learn-rust-with-gitoxide
[INFO] finished tweaking git repo https://github.com/Byron/learn-rust-with-gitoxide
[INFO] tweaked toml for git repo https://github.com/Byron/learn-rust-with-gitoxide written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Byron/learn-rust-with-gitoxide 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" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "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] 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-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1d9cb84175f57812fd5bd39140b75e4ee24ef985a31e79edd7765d975274f409
[INFO] running `Command { std: "docker" "start" "-a" "1d9cb84175f57812fd5bd39140b75e4ee24ef985a31e79edd7765d975274f409", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d9cb84175f57812fd5bd39140b75e4ee24ef985a31e79edd7765d975274f409", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d9cb84175f57812fd5bd39140b75e4ee24ef985a31e79edd7765d975274f409", kill_on_drop: false }`
[INFO] [stdout] 1d9cb84175f57812fd5bd39140b75e4ee24ef985a31e79edd7765d975274f409
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63ea2800b74256f6f142999395d4d68284a400dd2d5b0dd0e79578bac4e39800
[INFO] running `Command { std: "docker" "start" "-a" "63ea2800b74256f6f142999395d4d68284a400dd2d5b0dd0e79578bac4e39800", 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] 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 anyhow v1.0.44
[INFO] [stderr]     Checking strings v0.1.0 (/opt/rustwide/workdir/strings)
[INFO] [stderr]     Checking options-and-results v0.1.0 (/opt/rustwide/workdir/options-and-results)
[INFO] [stderr]     Checking ownership-and-borrowing v0.1.0 (/opt/rustwide/workdir/ownership-and-borrowing)
[INFO] [stderr]     Checking threading v0.1.0 (/opt/rustwide/workdir/threading)
[INFO] [stderr]     Checking conversions v0.1.0 (/opt/rustwide/workdir/conversions)
[INFO] [stderr]     Checking boxing v0.1.0 (/opt/rustwide/workdir/boxing)
[INFO] [stderr]     Checking closures v0.1.0 (/opt/rustwide/workdir/closures)
[INFO] [stderr]     Checking iterators v0.1.0 (/opt/rustwide/workdir/iterators)
[INFO] [stdout] warning: struct `MyVec` is never constructed
[INFO] [stdout]   --> boxing/src/main.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct MyVec<'a> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `iter` is never used
[INFO] [stdout]   --> boxing/src/main.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl<'a> MyVec<'a> {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] 26 |     fn iter(&self) -> Box<dyn Iterator<Item = &String> + '_> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyVec` is never constructed
[INFO] [stdout]   --> boxing/src/main.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct MyVec<'a> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `iter` is never used
[INFO] [stdout]   --> boxing/src/main.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl<'a> MyVec<'a> {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] 26 |     fn iter(&self) -> Box<dyn Iterator<Item = &String> + '_> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `FilterMap` that must be used
[INFO] [stdout]  --> iterators/src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | /     v.into_iter()
[INFO] [stdout] 6 | |         .filter_map(|v| String::from_utf8(v.into()).ok());
[INFO] [stdout]   | |_________________________________________________________^
[INFO] [stdout]   |
[INFO] [stdout]   = note: iterators are lazy and do nothing unless consumed
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let _ = v.into_iter()
[INFO] [stdout]   |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Rc` in this scope
[INFO] [stdout]   --> closures/src/main.rs:32:14
[INFO] [stdout]    |
[INFO] [stdout] 32 |         val: Rc<Vec<u32>>,
[INFO] [stdout]    |              ^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 3  + use std::rc::Rc;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Rc` in this scope
[INFO] [stdout]   --> closures/src/main.rs:32:14
[INFO] [stdout]    |
[INFO] [stdout] 32 |         val: Rc<Vec<u32>>,
[INFO] [stdout]    |              ^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 3  + use std::rc::Rc;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::AddAssign`
[INFO] [stdout]  --> closures/src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ops::AddAssign;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::AddAssign`
[INFO] [stdout]  --> closures/src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ops::AddAssign;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]   --> closures/src/main.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |             count += 1;
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: did you mean to capture by reference instead?
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]   --> closures/src/main.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |             count += 1;
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: did you mean to capture by reference instead?
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `closures` (bin "closures") due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `closures` (bin "closures" test) due to 2 previous errors; 2 warnings emitted
[INFO] [stdout] warning: unused `FilterMap` that must be used
[INFO] [stdout]  --> iterators/src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | /     v.into_iter()
[INFO] [stdout] 6 | |         .filter_map(|v| String::from_utf8(v.into()).ok());
[INFO] [stdout]   | |_________________________________________________________^
[INFO] [stdout]   |
[INFO] [stdout]   = note: iterators are lazy and do nothing unless consumed
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let _ = v.into_iter()
[INFO] [stdout]   |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "63ea2800b74256f6f142999395d4d68284a400dd2d5b0dd0e79578bac4e39800", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63ea2800b74256f6f142999395d4d68284a400dd2d5b0dd0e79578bac4e39800", kill_on_drop: false }`
[INFO] [stdout] 63ea2800b74256f6f142999395d4d68284a400dd2d5b0dd0e79578bac4e39800