[INFO] cloning repository https://github.com/sdornel/learn-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sdornel/learn-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdornel%2Flearn-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdornel%2Flearn-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 39dd52786da8d1e3b37b508b49825429313c6ca4
[INFO] checking sdornel/learn-rust/39dd52786da8d1e3b37b508b49825429313c6ca4 against master#bfc05d6b072585dfd0c792ec1b8728c08a3511fe for pr-154149
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdornel%2Flearn-rust" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sdornel/learn-rust
[INFO] finished tweaking git repo https://github.com/sdornel/learn-rust
[INFO] tweaked toml for git repo https://github.com/sdornel/learn-rust written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sdornel/learn-rust on toolchain bfc05d6b072585dfd0c792ec1b8728c08a3511fe
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bfc05d6b072585dfd0c792ec1b8728c08a3511fe" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sdornel/learn-rust 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" "+bfc05d6b072585dfd0c792ec1b8728c08a3511fe" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cssparser v0.34.0
[INFO] [stderr]   Downloaded servo_arc v0.4.0
[INFO] [stderr]   Downloaded dtoa v1.0.10
[INFO] [stderr]   Downloaded scraper v0.23.1
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[INFO] [stderr]   Downloaded reqwest v0.13.1
[INFO] [stderr]   Downloaded webpki-root-certs v1.0.5
[INFO] [stderr]   Downloaded aws-lc-rs v1.15.3
[INFO] [stderr]   Downloaded aws-lc-sys v0.36.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+bfc05d6b072585dfd0c792ec1b8728c08a3511fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b5d71b12ddabd433b8e3a910f5c60b9f50046001ece336187fac9913bde7dc1
[INFO] running `Command { std: "docker" "start" "-a" "8b5d71b12ddabd433b8e3a910f5c60b9f50046001ece336187fac9913bde7dc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b5d71b12ddabd433b8e3a910f5c60b9f50046001ece336187fac9913bde7dc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b5d71b12ddabd433b8e3a910f5c60b9f50046001ece336187fac9913bde7dc1", kill_on_drop: false }`
[INFO] [stdout] 8b5d71b12ddabd433b8e3a910f5c60b9f50046001ece336187fac9913bde7dc1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+bfc05d6b072585dfd0c792ec1b8728c08a3511fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a49fb5b1e7b843c528d6866059bb394d3d15206e26a6a2b6070079203bdad595
[INFO] running `Command { std: "docker" "start" "-a" "a49fb5b1e7b843c528d6866059bb394d3d15206e26a6a2b6070079203bdad595", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling find-msvc-tools v0.1.8
[INFO] [stderr]     Checking smallvec v1.15.0
[INFO] [stderr]     Checking bytes v1.10.1
[INFO] [stderr]    Compiling siphasher v1.0.1
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]    Compiling dunce v1.0.5
[INFO] [stderr]    Compiling fs_extra v1.3.0
[INFO] [stderr]    Compiling icu_locid_transform_data v1.5.1
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]     Checking litemap v0.7.5
[INFO] [stderr]     Checking rustls-pki-types v1.14.0
[INFO] [stderr]     Checking bitflags v2.9.0
[INFO] [stderr]    Compiling icu_properties_data v1.5.1
[INFO] [stderr]     Checking tracing-core v0.1.33
[INFO] [stderr]     Checking hashbrown v0.15.2
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]    Compiling icu_normalizer_data v1.5.1
[INFO] [stderr]    Compiling aws-lc-rs v1.15.3
[INFO] [stderr]    Compiling getrandom v0.3.2
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]    Compiling zerocopy v0.8.24
[INFO] [stderr]    Compiling openssl v0.10.72
[INFO] [stderr]    Compiling rustls v0.23.36
[INFO] [stderr]    Compiling phf_generator v0.11.3
[INFO] [stderr]     Checking dtoa v1.0.10
[INFO] [stderr]    Compiling phf_codegen v0.11.3
[INFO] [stderr]     Checking openssl-probe v0.2.0
[INFO] [stderr]     Checking servo_arc v0.4.0
[INFO] [stderr]     Checking http v1.3.1
[INFO] [stderr]     Checking iri-string v0.7.10
[INFO] [stderr]     Checking rustls-pemfile v2.2.0
[INFO] [stderr]     Checking ego-tree v0.10.0
[INFO] [stderr]     Checking indexmap v2.9.0
[INFO] [stderr]     Checking iana-time-zone v0.1.64
[INFO] [stderr]     Checking rustls-native-certs v0.8.3
[INFO] [stderr]     Checking print-terminal-output v0.1.0 (/opt/rustwide/workdir/print-terminal-output)
[INFO] [stderr]     Checking control-flow v0.1.0 (/opt/rustwide/workdir/3.5-control-flow)
[INFO] [stderr]     Checking method_syntax v0.1.0 (/opt/rustwide/workdir/5.3-method_syntax)
[INFO] [stderr]    Compiling selectors v0.26.0
[INFO] [stderr]     Checking the_slice_type v0.1.0 (/opt/rustwide/workdir/4.3-the_slice_type)
[INFO] [stderr]     Checking functions v0.1.0 (/opt/rustwide/workdir/3.4-functions)
[INFO] [stderr]     Checking chrono v0.4.43
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]  --> 5.3-method_syntax/src/main.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Rectangle {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `area` is never used
[INFO] [stdout]   --> 5.3-method_syntax/src/main.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 69 | impl Rectangle {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 70 |     fn area(&self) -> u32 {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `can_hold` is never used
[INFO] [stdout]   --> 5.3-method_syntax/src/main.rs:76:8
[INFO] [stdout]    |
[INFO] [stdout] 75 | impl Rectangle {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 76 |     fn can_hold(&self, other: &Rectangle) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking dtoa-short v0.3.5
[INFO] [stdout] warning: unused variable: `word`
[INFO] [stdout]   --> 4.3-the_slice_type/src/main.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |     let word = first_word(&my_string[0..6]);
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_word`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `word`
[INFO] [stdout]   --> 4.3-the_slice_type/src/main.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |     let word = first_word(&my_string[..]);
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_word`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `word`
[INFO] [stdout]   --> 4.3-the_slice_type/src/main.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 82 |     let word = first_word(&my_string);
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_word`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `word`
[INFO] [stdout]   --> 4.3-the_slice_type/src/main.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |     let word = first_word(&my_string_literal[0..6]);
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_word`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `word`
[INFO] [stdout]   --> 4.3-the_slice_type/src/main.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |     let word = first_word(&my_string_literal[..]);
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_word`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `word`
[INFO] [stdout]   --> 4.3-the_slice_type/src/main.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |     let word = first_word(my_string_literal);
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_word`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking structs_part_2 v0.1.0 (/opt/rustwide/workdir/5.2-structs_part_2)
[INFO] [stderr]     Checking ownership v0.1.0 (/opt/rustwide/workdir/4.1-ownership)
[INFO] [stderr]     Checking structs_part_1 v0.1.0 (/opt/rustwide/workdir/5.1-structs_part_1)
[INFO] [stdout] warning: unused variable: `word`
[INFO] [stdout]   --> 4.3-the_slice_type/src/main.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |     let word = first_word(&my_string[0..6]);
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_word`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stdout] warning: unused variable: `word`
[INFO] [stdout]   --> 4.3-the_slice_type/src/main.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |     let word = first_word(&my_string[..]);
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_word`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `word`
[INFO] [stdout]   --> 4.3-the_slice_type/src/main.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 82 |     let word = first_word(&my_string);
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_word`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `word`
[INFO] [stdout]   --> 4.3-the_slice_type/src/main.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |     let word = first_word(&my_string_literal[0..6]);
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_word`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `word`
[INFO] [stdout]   --> 4.3-the_slice_type/src/main.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |     let word = first_word(&my_string_literal[..]);
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_word`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `word`
[INFO] [stdout]   --> 4.3-the_slice_type/src/main.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |     let word = first_word(my_string_literal);
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_word`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking last-modified-time v0.1.0 (/opt/rustwide/workdir/last-modified-time)
[INFO] [stdout] warning: fields `width` and `height` are never read
[INFO] [stdout]   --> 5.2-structs_part_2/src/main.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 86 | struct Rectangle {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] 87 |     width: u32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 88 |     height: u32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Rectangle` 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] [stderr]     Checking match-intro v0.1.0 (/opt/rustwide/workdir/6.2-match-intro)
[INFO] [stderr] error: could not compile `structs_part_1` (bin "structs_part_1") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0601]: `main` function not found in crate `structs_part_1`
[INFO] [stdout]    --> 5.1-structs_part_1/src/main.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 103 | // }
[INFO] [stdout]     |     ^ consider adding a `main` function to `5.1-structs_part_1/src/main.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `method_syntax`
[INFO] [stdout]   --> 5.3-method_syntax/src/main.rs:79:2
[INFO] [stdout]    |
[INFO] [stdout] 79 | }
[INFO] [stdout]    |  ^ consider adding a `main` function to `5.3-method_syntax/src/main.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected item, found keyword `let`
[INFO] [stdout]   --> 6.2-match-intro/src/main.rs:75:1
[INFO] [stdout]    |
[INFO] [stdout] 75 | let dice_roll = 9;
[INFO] [stdout]    | ^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | `let` cannot be used for global variables
[INFO] [stdout]    | help: consider using `static` or `const` instead of `let`
[INFO] [stdout]    |
[INFO] [stdout]    = note: for a full list of items that can appear in modules, see <https://doc.rust-lang.org/reference/items.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `match-intro` (bin "match-intro" test) due to 1 previous error
[INFO] [stderr] error: could not compile `method_syntax` (bin "method_syntax") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "a49fb5b1e7b843c528d6866059bb394d3d15206e26a6a2b6070079203bdad595", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a49fb5b1e7b843c528d6866059bb394d3d15206e26a6a2b6070079203bdad595", kill_on_drop: false }`
[INFO] [stdout] a49fb5b1e7b843c528d6866059bb394d3d15206e26a6a2b6070079203bdad595