[INFO] cloning repository https://github.com/adonese/learnrust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/adonese/learnrust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadonese%2Flearnrust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadonese%2Flearnrust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0587a3f5b832b93770bece3c4a96cce7ed02e704
[INFO] checking adonese/learnrust against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadonese%2Flearnrust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/adonese/learnrust
[INFO] finished tweaking git repo https://github.com/adonese/learnrust
[INFO] tweaked toml for git repo https://github.com/adonese/learnrust written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/adonese/learnrust on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/adonese/learnrust 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 460afcd9c748ec611262e9a2eca5c9472c1cbfaf504f97d41c2605335a0df375
[INFO] running `Command { std: "docker" "start" "-a" "460afcd9c748ec611262e9a2eca5c9472c1cbfaf504f97d41c2605335a0df375", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "460afcd9c748ec611262e9a2eca5c9472c1cbfaf504f97d41c2605335a0df375", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "460afcd9c748ec611262e9a2eca5c9472c1cbfaf504f97d41c2605335a0df375", kill_on_drop: false }`
[INFO] [stdout] 460afcd9c748ec611262e9a2eca5c9472c1cbfaf504f97d41c2605335a0df375
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df4b17947ab4ec7be58537996f59101e87ccbbe70f5ed5eb3aaaf1d1bb880bbf
[INFO] running `Command { std: "docker" "start" "-a" "df4b17947ab4ec7be58537996f59101e87ccbbe70f5ed5eb3aaaf1d1bb880bbf", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.85
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking socket2 v0.5.7
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]    Compiling cc v1.0.99
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]    Compiling rustversion v1.0.17
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]    Compiling serde v1.0.203
[INFO] [stderr]    Compiling httparse v1.9.4
[INFO] [stderr]     Checking indexmap v2.2.6
[INFO] [stderr]    Compiling serde_json v1.0.117
[INFO] [stderr]     Checking sync_wrapper v1.0.1
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]     Checking rustls-pki-types v1.7.0
[INFO] [stderr]    Compiling syn v2.0.66
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]     Checking rustls-pemfile v2.1.2
[INFO] [stderr]     Checking url v2.5.2
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]    Compiling axum-core v0.4.3
[INFO] [stderr]    Compiling axum v0.7.5
[INFO] [stderr]     Checking thread_local v1.1.8
[INFO] [stderr]     Checking strings v0.1.0 (/opt/rustwide/workdir/strings)
[INFO] [stderr]     Checking borrow v0.1.0 (/opt/rustwide/workdir/borrow)
[INFO] [stdout] warning: unused import: `std::io::Error`
[INFO] [stdout]  --> strings/src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::Error;
[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 `to_vec_string` is never used
[INFO] [stdout]   --> strings/src/main.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn to_vec_string(data: &'static str) -> Vec<String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `myVec` should have a snake case name
[INFO] [stdout]   --> strings/src/main.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let myVec = to_vec("This is someyhing i like".into());
[INFO] [stdout]    |         ^^^^^ help: convert the identifier to snake case: `my_vec`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> strings/src/main.rs:26:15
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let res = String::from_str(data).expect("i'm getting it");
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `strings` (bin "strings" test) due to 1 previous error; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: function `listOfUsers` should have a snake case name
[INFO] [stdout]   --> borrow/src/main.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn listOfUsers() -> Vec<String> {
[INFO] [stdout]    |    ^^^^^^^^^^^ help: convert the identifier to snake case: `list_of_users`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "df4b17947ab4ec7be58537996f59101e87ccbbe70f5ed5eb3aaaf1d1bb880bbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df4b17947ab4ec7be58537996f59101e87ccbbe70f5ed5eb3aaaf1d1bb880bbf", kill_on_drop: false }`
[INFO] [stdout] df4b17947ab4ec7be58537996f59101e87ccbbe70f5ed5eb3aaaf1d1bb880bbf