[INFO] cloning repository https://github.com/CerulanLumina/whereisclass
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CerulanLumina/whereisclass" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCerulanLumina%2Fwhereisclass", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f5402cdceb298e5b0178bdd60905741fa863c403
[INFO] building CerulanLumina/whereisclass against master#ad211ced81509462cdfe4c29ed10f97279a0acae for pr-135216
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCerulanLumina%2Fwhereisclass" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CerulanLumina/whereisclass on toolchain ad211ced81509462cdfe4c29ed10f97279a0acae
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CerulanLumina/whereisclass
[INFO] finished tweaking git repo https://github.com/CerulanLumina/whereisclass
[INFO] tweaked toml for git repo https://github.com/CerulanLumina/whereisclass written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/CerulanLumina/whereisclass 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" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]    Compiling whereisclass v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `parser::htmlparser::CourseDBHTMLParseError`
[INFO] [stdout]  --> src/parser/mod.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{parser::htmlparser::CourseDBHTMLParseError, CourseDB};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/parser/htmlparser.rs:28:35
[INFO] [stdout]    |
[INFO] [stdout] 28 |     static ref DAY_REGEX: Regex = { Regex::new(r"^[MTWRF]*$").unwrap() };
[INFO] [stdout]    |                                   ^^                                  ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 28 -     static ref DAY_REGEX: Regex = { Regex::new(r"^[MTWRF]*$").unwrap() };
[INFO] [stdout] 28 +     static ref DAY_REGEX: Regex = Regex::new(r"^[MTWRF]*$").unwrap();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/models.rs:187:13
[INFO] [stdout]     |
[INFO] [stdout] 187 |             x => Err(DayParseError(from.into())),
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `db`
[INFO] [stdout]   --> src/main.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |             db,
[INFO] [stdout]    |             ^^ help: try ignoring the field: `db: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `room`
[INFO] [stdout]   --> src/main.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |             room,
[INFO] [stdout]    |             ^^^^ help: try ignoring the field: `room: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `day`
[INFO] [stdout]   --> src/main.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 |             day,
[INFO] [stdout]    |             ^^^ help: try ignoring the field: `day: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `time`
[INFO] [stdout]   --> src/main.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |             time,
[INFO] [stdout]    |             ^^^^ help: try ignoring the field: `time: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `db`
[INFO] [stdout]   --> src/main.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |             db,
[INFO] [stdout]    |             ^^ help: try ignoring the field: `db: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `day`
[INFO] [stdout]   --> src/main.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |             day,
[INFO] [stdout]    |             ^^^ help: try ignoring the field: `day: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `time_start`
[INFO] [stdout]   --> src/main.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |             time_start,
[INFO] [stdout]    |             ^^^^^^^^^^ help: try ignoring the field: `time_start: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `time_end`
[INFO] [stdout]   --> src/main.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |             time_end,
[INFO] [stdout]    |             ^^^^^^^^ help: try ignoring the field: `time_end: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:73:17
[INFO] [stdout]    |
[INFO] [stdout] 73 |             let mut f = File::open(parse_args.file);
[INFO] [stdout]    |                 ----^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `find_course_in_room_at_time` is never used
[INFO] [stdout]  --> src/actions.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub trait FindCourseInRoomAtTime {
[INFO] [stdout]   |           ---------------------- method in this trait
[INFO] [stdout] 6 |     /// Find a course in a room at a given time instant.
[INFO] [stdout] 7 |     fn find_course_in_room_at_time(
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `find_empty_rooms` is never used
[INFO] [stdout]   --> src/actions.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub trait FindEmptyRooms {
[INFO] [stdout]    |           -------------- method in this trait
[INFO] [stdout] 27 |     /// Find empty rooms given a start time, and ending time, and a day
[INFO] [stdout] 28 |     fn find_empty_rooms(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `time` is never used
[INFO] [stdout]   --> src/models.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 86 | impl TimeCode {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] 87 |     pub fn time(&self) -> u16 { self.time }
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `input` is never used
[INFO] [stdout]    --> src/models.rs:256:8
[INFO] [stdout]     |
[INFO] [stdout] 249 | impl TimeCodeParseError {
[INFO] [stdout]     | ----------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 256 |     fn input(&self) -> &str { self.input.as_str() }
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&std::string::String` instead of cloning the inner type
[INFO] [stdout]   --> src/actions.rs:93:23
[INFO] [stdout]    |
[INFO] [stdout] 93 |             .map(|a| a.clone().clone())
[INFO] [stdout]    |                       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 35.03s
[INFO] running `Command { std: "docker" "inspect" "3d39dc0e5afdb931bd57734786550b95cfe704ff36dfc5751594d09f3eef8caa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d39dc0e5afdb931bd57734786550b95cfe704ff36dfc5751594d09f3eef8caa", kill_on_drop: false }`
[INFO] [stdout] 3d39dc0e5afdb931bd57734786550b95cfe704ff36dfc5751594d09f3eef8caa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af3863b8f5027be2d7c84d025e321712f02c2087291899105f21c6180cec8a8d
[INFO] running `Command { std: "docker" "start" "-a" "af3863b8f5027be2d7c84d025e321712f02c2087291899105f21c6180cec8a8d", kill_on_drop: false }`
[INFO] [stderr]    Compiling whereisclass v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `parser::htmlparser::CourseDBHTMLParseError`
[INFO] [stdout]  --> src/parser/mod.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{parser::htmlparser::CourseDBHTMLParseError, CourseDB};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/parser/htmlparser.rs:28:35
[INFO] [stdout]    |
[INFO] [stdout] 28 |     static ref DAY_REGEX: Regex = { Regex::new(r"^[MTWRF]*$").unwrap() };
[INFO] [stdout]    |                                   ^^                                  ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 28 -     static ref DAY_REGEX: Regex = { Regex::new(r"^[MTWRF]*$").unwrap() };
[INFO] [stdout] 28 +     static ref DAY_REGEX: Regex = Regex::new(r"^[MTWRF]*$").unwrap();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/models.rs:187:13
[INFO] [stdout]     |
[INFO] [stdout] 187 |             x => Err(DayParseError(from.into())),
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `db`
[INFO] [stdout]   --> src/main.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |             db,
[INFO] [stdout]    |             ^^ help: try ignoring the field: `db: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `room`
[INFO] [stdout]   --> src/main.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |             room,
[INFO] [stdout]    |             ^^^^ help: try ignoring the field: `room: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `day`
[INFO] [stdout]   --> src/main.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 |             day,
[INFO] [stdout]    |             ^^^ help: try ignoring the field: `day: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `time`
[INFO] [stdout]   --> src/main.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |             time,
[INFO] [stdout]    |             ^^^^ help: try ignoring the field: `time: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `db`
[INFO] [stdout]   --> src/main.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |             db,
[INFO] [stdout]    |             ^^ help: try ignoring the field: `db: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `day`
[INFO] [stdout]   --> src/main.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |             day,
[INFO] [stdout]    |             ^^^ help: try ignoring the field: `day: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `time_start`
[INFO] [stdout]   --> src/main.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |             time_start,
[INFO] [stdout]    |             ^^^^^^^^^^ help: try ignoring the field: `time_start: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `time_end`
[INFO] [stdout]   --> src/main.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |             time_end,
[INFO] [stdout]    |             ^^^^^^^^ help: try ignoring the field: `time_end: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:73:17
[INFO] [stdout]    |
[INFO] [stdout] 73 |             let mut f = File::open(parse_args.file);
[INFO] [stdout]    |                 ----^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `find_course_in_room_at_time` is never used
[INFO] [stdout]  --> src/actions.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub trait FindCourseInRoomAtTime {
[INFO] [stdout]   |           ---------------------- method in this trait
[INFO] [stdout] 6 |     /// Find a course in a room at a given time instant.
[INFO] [stdout] 7 |     fn find_course_in_room_at_time(
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `find_empty_rooms` is never used
[INFO] [stdout]   --> src/actions.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub trait FindEmptyRooms {
[INFO] [stdout]    |           -------------- method in this trait
[INFO] [stdout] 27 |     /// Find empty rooms given a start time, and ending time, and a day
[INFO] [stdout] 28 |     fn find_empty_rooms(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `time` is never used
[INFO] [stdout]   --> src/models.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 86 | impl TimeCode {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] 87 |     pub fn time(&self) -> u16 { self.time }
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `input` is never used
[INFO] [stdout]    --> src/models.rs:256:8
[INFO] [stdout]     |
[INFO] [stdout] 249 | impl TimeCodeParseError {
[INFO] [stdout]     | ----------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 256 |     fn input(&self) -> &str { self.input.as_str() }
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&std::string::String` instead of cloning the inner type
[INFO] [stdout]   --> src/actions.rs:93:23
[INFO] [stdout]    |
[INFO] [stdout] 93 |             .map(|a| a.clone().clone())
[INFO] [stdout]    |                       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "af3863b8f5027be2d7c84d025e321712f02c2087291899105f21c6180cec8a8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af3863b8f5027be2d7c84d025e321712f02c2087291899105f21c6180cec8a8d", kill_on_drop: false }`
[INFO] [stdout] af3863b8f5027be2d7c84d025e321712f02c2087291899105f21c6180cec8a8d
