[INFO] cloning repository https://github.com/coma112/RustSchool [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/coma112/RustSchool" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcoma112%2FRustSchool", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcoma112%2FRustSchool'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7d05e61b2a746a0f8a5ddefd316d63906e7893ed [INFO] checking coma112/RustSchool against try#d83b14207998f47b18a34e930157ac0d7c18b16e for pr-149137 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcoma112%2FRustSchool" "/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/coma112/RustSchool [INFO] finished tweaking git repo https://github.com/coma112/RustSchool [INFO] tweaked toml for git repo https://github.com/coma112/RustSchool written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/coma112/RustSchool on toolchain d83b14207998f47b18a34e930157ac0d7c18b16e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d83b14207998f47b18a34e930157ac0d7c18b16e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/coma112/RustSchool 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" "+d83b14207998f47b18a34e930157ac0d7c18b16e" "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] 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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+d83b14207998f47b18a34e930157ac0d7c18b16e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e12d8260c8bf51c386afd0d89910ead31f9820c6a40bf9e877fce26878bef727 [INFO] running `Command { std: "docker" "start" "-a" "e12d8260c8bf51c386afd0d89910ead31f9820c6a40bf9e877fce26878bef727", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e12d8260c8bf51c386afd0d89910ead31f9820c6a40bf9e877fce26878bef727", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e12d8260c8bf51c386afd0d89910ead31f9820c6a40bf9e877fce26878bef727", kill_on_drop: false }` [INFO] [stdout] e12d8260c8bf51c386afd0d89910ead31f9820c6a40bf9e877fce26878bef727 [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" "-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+d83b14207998f47b18a34e930157ac0d7c18b16e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 80a2925135446b42a2020ae09206262a74fe63d0464356e53af357f218d02674 [INFO] running `Command { std: "docker" "start" "-a" "80a2925135446b42a2020ae09206262a74fe63d0464356e53af357f218d02674", kill_on_drop: false }` [INFO] [stderr] Checking School v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `school_name` is never read [INFO] [stdout] --> src/main.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 8 | struct School { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] 9 | students: Vec, [INFO] [stdout] 10 | school_name: 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: methods `is_passing` and `count_failing_grades` are never used [INFO] [stdout] --> src/main.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 13 | impl Student { [INFO] [stdout] | ------------ methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 33 | fn is_passing(&self) -> bool { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | fn count_failing_grades(&self) -> u32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `remove_student`, `find_student_by_id`, `get_class_average`, and `youngest_student` are never used [INFO] [stdout] --> src/main.rs:62:8 [INFO] [stdout] | [INFO] [stdout] 52 | impl School { [INFO] [stdout] | ----------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 62 | fn remove_student(&mut self, id: u32) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 70 | fn find_student_by_id(&self, id: u32) -> Option<&Student> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 90 | fn get_class_average(&self) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 112 | fn youngest_student(&self) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `school_name` is never read [INFO] [stdout] --> src/main.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 8 | struct School { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] 9 | students: Vec, [INFO] [stdout] 10 | school_name: 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: methods `is_passing` and `count_failing_grades` are never used [INFO] [stdout] --> src/main.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 13 | impl Student { [INFO] [stdout] | ------------ methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 33 | fn is_passing(&self) -> bool { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | fn count_failing_grades(&self) -> u32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `remove_student`, `find_student_by_id`, `get_class_average`, and `youngest_student` are never used [INFO] [stdout] --> src/main.rs:62:8 [INFO] [stdout] | [INFO] [stdout] 52 | impl School { [INFO] [stdout] | ----------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 62 | fn remove_student(&mut self, id: u32) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 70 | fn find_student_by_id(&self, id: u32) -> Option<&Student> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 90 | fn get_class_average(&self) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 112 | fn youngest_student(&self) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.07s [INFO] running `Command { std: "docker" "inspect" "80a2925135446b42a2020ae09206262a74fe63d0464356e53af357f218d02674", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "80a2925135446b42a2020ae09206262a74fe63d0464356e53af357f218d02674", kill_on_drop: false }` [INFO] [stdout] 80a2925135446b42a2020ae09206262a74fe63d0464356e53af357f218d02674