[INFO] fetching crate cargo-atcoder 0.4.0...
[INFO] checking cargo-atcoder-0.4.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate cargo-atcoder 0.4.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate cargo-atcoder 0.4.0
[INFO] finished tweaking crates.io crate cargo-atcoder 0.4.0
[INFO] tweaked toml for crates.io crate cargo-atcoder 0.4.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cargo-atcoder 0.4.0 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 crates.io crate cargo-atcoder 0.4.0 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 70d7ee350b07623bcc5fb51153568abd0f93a1784224442cfe36dadccbca06d2
[INFO] running `Command { std: "docker" "start" "-a" "70d7ee350b07623bcc5fb51153568abd0f93a1784224442cfe36dadccbca06d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70d7ee350b07623bcc5fb51153568abd0f93a1784224442cfe36dadccbca06d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70d7ee350b07623bcc5fb51153568abd0f93a1784224442cfe36dadccbca06d2", kill_on_drop: false }`
[INFO] [stdout] 70d7ee350b07623bcc5fb51153568abd0f93a1784224442cfe36dadccbca06d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 6a7c0c1d8a38892023c541ccbe7eca1240d5cb921e0fe16f76895f38ce6b2310
[INFO] running `Command { std: "docker" "start" "-a" "6a7c0c1d8a38892023c541ccbe7eca1240d5cb921e0fe16f76895f38ce6b2310", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling siphasher v0.3.6
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]     Checking futures-sink v0.3.16
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling futures-task v0.3.16
[INFO] [stderr]    Compiling futures-channel v0.3.16
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling tokio v1.9.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking futures-io v0.3.16
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking tinyvec v1.3.1
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling openssl v0.10.35
[INFO] [stderr]    Compiling const_fn v0.4.8
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling time v0.2.27
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling openssl-sys v0.9.65
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]     Checking futf v0.1.4
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling cookie v0.14.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking openssl-probe v0.1.4
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking tendril v0.4.2
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking dtoa-short v0.3.3
[INFO] [stderr]     Checking socket2 v0.4.1
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]    Compiling camino v1.0.5
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling encoding_rs v0.8.28
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking httpdate v1.0.1
[INFO] [stderr]    Compiling selectors v0.22.0
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking servo_arc v0.1.1
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking thin-slice v0.1.1
[INFO] [stderr]     Checking predicates-core v1.0.2
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling markup5ever v0.10.1
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking combine v4.6.0
[INFO] [stderr]     Checking http-body v0.4.2
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking cpufeatures v0.1.5
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking ipnet v2.3.1
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking ego-tree v0.6.2
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking zeroize v1.4.1
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking sha2 v0.9.5
[INFO] [stderr]     Checking predicates-tree v1.0.2
[INFO] [stderr]     Checking dirs v3.0.2
[INFO] [stderr]     Checking which v4.2.2
[INFO] [stderr]     Checking console v0.14.1
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking diff v0.1.12
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking predicates v2.0.1
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking data-encoding v2.3.2
[INFO] [stderr]     Checking bytesize v1.1.0
[INFO] [stderr]     Checking dialoguer v0.8.0
[INFO] [stderr]     Checking indicatif v0.16.2
[INFO] [stderr]     Checking pretty_assertions v0.7.2
[INFO] [stderr]     Checking assert_cmd v1.0.7
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking publicsuffix v1.5.6
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling phf_macros v0.8.0
[INFO] [stderr]    Compiling time-macros-impl v0.1.2
[INFO] [stderr]    Compiling cssparser v0.27.2
[INFO] [stderr]    Compiling html5ever v0.25.1
[INFO] [stderr]    Compiling cssparser-macros v0.6.0
[INFO] [stderr]    Compiling derive_more v0.99.16
[INFO] [stderr]    Compiling structopt-derive v0.4.15
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking structopt v0.3.22
[INFO] [stderr]     Checking futures-executor v0.3.16
[INFO] [stderr]     Checking tokio-util v0.6.7
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking futures v0.3.16
[INFO] [stderr]     Checking toml_edit v0.2.1
[INFO] [stderr]     Checking h2 v0.3.3
[INFO] [stderr]     Checking string_cache v0.8.1
[INFO] [stderr]     Checking cargo-platform v0.1.1
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking cookie_store v0.12.0
[INFO] [stderr]     Checking cargo_metadata v0.14.0
[INFO] [stderr]     Checking hyper v0.14.11
[INFO] [stderr]     Checking scraper v0.12.0
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.4
[INFO] [stderr]     Checking cargo-atcoder v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `name`, `tle`, and `mle` are never read
[INFO] [stdout]   --> src/atcoder.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct Problem {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 24 |     pub id: String,
[INFO] [stdout] 25 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 26 |     pub url: String,
[INFO] [stdout] 27 |     pub tle: String,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 28 |     pub mle: String,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Problem` 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] [stdout] warning: field `user` is never read
[INFO] [stdout]   --> src/atcoder.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub struct SubmissionResult {
[INFO] [stdout]    |            ---------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 54 |     pub user: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SubmissionResult` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `dependencies` is never read
[INFO] [stdout]   --> src/config.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Config {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 12 |     pub dependencies: Value,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Config` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `release` is never read
[INFO] [stdout]   --> src/config.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct Profile {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 27 |     pub target: String,
[INFO] [stdout] 28 |     pub release: Value,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Profile` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 | /     /// Contest ID (e.g. abc123)
[INFO] [stdout] 64 | |     contest_id: String,
[INFO] [stdout]    | |______________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 | /     /// Create src/bin/<NAME>.rs without retrieving actual problem IDs
[INFO] [stdout] 67 | |     #[structopt(short, long, value_name("NAME"))]
[INFO] [stdout] 68 | |     bins: Vec<String>,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/main.rs:175:5
[INFO] [stdout]     |
[INFO] [stdout] 175 | /     /// Problem ID (e.g. a, b, ...)
[INFO] [stdout] 176 | |     problem_id: String,
[INFO] [stdout]     | |______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/main.rs:180:5
[INFO] [stdout]     |
[INFO] [stdout] 180 | /     /// [cargo] Package with the target to test
[INFO] [stdout] 181 | |     #[structopt(short, long, value_name("SPEC"))]
[INFO] [stdout] 182 | |     package: Option<String>,
[INFO] [stdout]     | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/main.rs:183:5
[INFO] [stdout]     |
[INFO] [stdout] 183 | /     /// [cargo] Path to Cargo.toml
[INFO] [stdout] 184 | |     #[structopt(long, value_name("PATH"))]
[INFO] [stdout] 185 | |     manifest_path: Option<PathBuf>,
[INFO] [stdout]     | |__________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/main.rs:539:5
[INFO] [stdout]     |
[INFO] [stdout] 539 | /     /// Problem ID (must be same as binary name)
[INFO] [stdout] 540 | |     problem_id: String,
[INFO] [stdout]     | |______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/main.rs:541:5
[INFO] [stdout]     |
[INFO] [stdout] 541 | /     /// [cargo] Package with the target to submit
[INFO] [stdout] 542 | |     #[structopt(short, long, value_name("SPEC"))]
[INFO] [stdout] 543 | |     package: Option<String>,
[INFO] [stdout]     | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/main.rs:544:5
[INFO] [stdout]     |
[INFO] [stdout] 544 | /     /// [cargo] Path to Cargo.toml
[INFO] [stdout] 545 | |     #[structopt(long, value_name("PATH"))]
[INFO] [stdout] 546 | |     manifest_path: Option<PathBuf>,
[INFO] [stdout]     | |__________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/main.rs:780:5
[INFO] [stdout]     |
[INFO] [stdout] 780 | /     /// [cargo] Package(s) to warm up
[INFO] [stdout] 781 | |     #[structopt(short, long, value_name("SPEC"), min_values(1), number_of_values(1))]
[INFO] [stdout] 782 | |     package: Vec<String>,
[INFO] [stdout]     | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/main.rs:784:5
[INFO] [stdout]     |
[INFO] [stdout] 784 | /     /// [cargo] Path to Cargo.toml
[INFO] [stdout] 785 | |     #[structopt(long, value_name("PATH"))]
[INFO] [stdout] 786 | |     manifest_path: Option<PathBuf>,
[INFO] [stdout]     | |__________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]     --> src/main.rs:1018:5
[INFO] [stdout]      |
[INFO] [stdout] 1018 | /     /// Problem ID to make binary
[INFO] [stdout] 1019 | |     problem_id: String,
[INFO] [stdout]      | |______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<PathBuf, Infallible>
[INFO] [stdout]     --> src/main.rs:1020:5
[INFO] [stdout]      |
[INFO] [stdout] 1020 | /     /// [cargo] Path to Cargo.toml
[INFO] [stdout] 1021 | |     #[structopt(long, value_name("PATH"))]
[INFO] [stdout] 1022 | |     manifest_path: Option<PathBuf>,
[INFO] [stdout]      | |__________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<PathBuf, Infallible>
[INFO] [stdout]     --> src/main.rs:1023:5
[INFO] [stdout]      |
[INFO] [stdout] 1023 | /     /// Output filename (default: <problem-id>-bin.rs)
[INFO] [stdout] 1024 | |     #[structopt(long, short)]
[INFO] [stdout] 1025 | |     output: Option<PathBuf>,
[INFO] [stdout]      | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]     --> src/main.rs:1053:5
[INFO] [stdout]      |
[INFO] [stdout] 1053 | /     /// [cargo] Package
[INFO] [stdout] 1054 | |     #[structopt(short, long, value_name("SPEC"))]
[INFO] [stdout] 1055 | |     package: Option<String>,
[INFO] [stdout]      | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<PathBuf, Infallible>
[INFO] [stdout]     --> src/main.rs:1056:5
[INFO] [stdout]      |
[INFO] [stdout] 1056 | /     /// [cargo] Path to Cargo.toml
[INFO] [stdout] 1057 | |     #[structopt(long, value_name("PATH"))]
[INFO] [stdout] 1058 | |     manifest_path: Option<PathBuf>,
[INFO] [stdout]      | |__________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]     --> src/main.rs:1180:5
[INFO] [stdout]      |
[INFO] [stdout] 1180 | /     /// [cargo] Package
[INFO] [stdout] 1181 | |     #[structopt(short, long, value_name("SPEC"))]
[INFO] [stdout] 1182 | |     package: Option<String>,
[INFO] [stdout]      | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<PathBuf, Infallible>
[INFO] [stdout]     --> src/main.rs:1183:5
[INFO] [stdout]      |
[INFO] [stdout] 1183 | /     /// [cargo] Path to Cargo.toml
[INFO] [stdout] 1184 | |     #[structopt(long, value_name("PATH"))]
[INFO] [stdout] 1185 | |     manifest_path: Option<PathBuf>,
[INFO] [stdout]      | |__________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/http.rs:28:27
[INFO] [stdout]    |
[INFO] [stdout] 28 |               for cookie in self
[INFO] [stdout]    |  ___________________________^
[INFO] [stdout] 29 | |                 .cookie_store
[INFO] [stdout] 30 | |                 .cookies(&self.endpoint.parse::<Url>().unwrap())
[INFO] [stdout]    | |________________________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 28 -             for cookie in self
[INFO] [stdout] 28 +             while let Some(cookie) = self
[INFO] [stdout]    |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 28 -             for cookie in self
[INFO] [stdout] 28 +             if let Some(cookie) = self
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cargo-atcoder` (bin "cargo-atcoder" test) due to 17 previous errors; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: fields `name`, `tle`, and `mle` are never read
[INFO] [stdout]   --> src/atcoder.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct Problem {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 24 |     pub id: String,
[INFO] [stdout] 25 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 26 |     pub url: String,
[INFO] [stdout] 27 |     pub tle: String,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 28 |     pub mle: String,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Problem` 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] [stdout] warning: field `user` is never read
[INFO] [stdout]   --> src/atcoder.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub struct SubmissionResult {
[INFO] [stdout]    |            ---------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 54 |     pub user: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SubmissionResult` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `dependencies` is never read
[INFO] [stdout]   --> src/config.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Config {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 12 |     pub dependencies: Value,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Config` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `release` is never read
[INFO] [stdout]   --> src/config.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct Profile {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 27 |     pub target: String,
[INFO] [stdout] 28 |     pub release: Value,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Profile` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 | /     /// Contest ID (e.g. abc123)
[INFO] [stdout] 64 | |     contest_id: String,
[INFO] [stdout]    | |______________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 | /     /// Create src/bin/<NAME>.rs without retrieving actual problem IDs
[INFO] [stdout] 67 | |     #[structopt(short, long, value_name("NAME"))]
[INFO] [stdout] 68 | |     bins: Vec<String>,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/main.rs:175:5
[INFO] [stdout]     |
[INFO] [stdout] 175 | /     /// Problem ID (e.g. a, b, ...)
[INFO] [stdout] 176 | |     problem_id: String,
[INFO] [stdout]     | |______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/main.rs:180:5
[INFO] [stdout]     |
[INFO] [stdout] 180 | /     /// [cargo] Package with the target to test
[INFO] [stdout] 181 | |     #[structopt(short, long, value_name("SPEC"))]
[INFO] [stdout] 182 | |     package: Option<String>,
[INFO] [stdout]     | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/main.rs:183:5
[INFO] [stdout]     |
[INFO] [stdout] 183 | /     /// [cargo] Path to Cargo.toml
[INFO] [stdout] 184 | |     #[structopt(long, value_name("PATH"))]
[INFO] [stdout] 185 | |     manifest_path: Option<PathBuf>,
[INFO] [stdout]     | |__________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/main.rs:539:5
[INFO] [stdout]     |
[INFO] [stdout] 539 | /     /// Problem ID (must be same as binary name)
[INFO] [stdout] 540 | |     problem_id: String,
[INFO] [stdout]     | |______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/main.rs:541:5
[INFO] [stdout]     |
[INFO] [stdout] 541 | /     /// [cargo] Package with the target to submit
[INFO] [stdout] 542 | |     #[structopt(short, long, value_name("SPEC"))]
[INFO] [stdout] 543 | |     package: Option<String>,
[INFO] [stdout]     | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/main.rs:544:5
[INFO] [stdout]     |
[INFO] [stdout] 544 | /     /// [cargo] Path to Cargo.toml
[INFO] [stdout] 545 | |     #[structopt(long, value_name("PATH"))]
[INFO] [stdout] 546 | |     manifest_path: Option<PathBuf>,
[INFO] [stdout]     | |__________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/main.rs:780:5
[INFO] [stdout]     |
[INFO] [stdout] 780 | /     /// [cargo] Package(s) to warm up
[INFO] [stdout] 781 | |     #[structopt(short, long, value_name("SPEC"), min_values(1), number_of_values(1))]
[INFO] [stdout] 782 | |     package: Vec<String>,
[INFO] [stdout]     | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/main.rs:784:5
[INFO] [stdout]     |
[INFO] [stdout] 784 | /     /// [cargo] Path to Cargo.toml
[INFO] [stdout] 785 | |     #[structopt(long, value_name("PATH"))]
[INFO] [stdout] 786 | |     manifest_path: Option<PathBuf>,
[INFO] [stdout]     | |__________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]     --> src/main.rs:1018:5
[INFO] [stdout]      |
[INFO] [stdout] 1018 | /     /// Problem ID to make binary
[INFO] [stdout] 1019 | |     problem_id: String,
[INFO] [stdout]      | |______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<PathBuf, Infallible>
[INFO] [stdout]     --> src/main.rs:1020:5
[INFO] [stdout]      |
[INFO] [stdout] 1020 | /     /// [cargo] Path to Cargo.toml
[INFO] [stdout] 1021 | |     #[structopt(long, value_name("PATH"))]
[INFO] [stdout] 1022 | |     manifest_path: Option<PathBuf>,
[INFO] [stdout]      | |__________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<PathBuf, Infallible>
[INFO] [stdout]     --> src/main.rs:1023:5
[INFO] [stdout]      |
[INFO] [stdout] 1023 | /     /// Output filename (default: <problem-id>-bin.rs)
[INFO] [stdout] 1024 | |     #[structopt(long, short)]
[INFO] [stdout] 1025 | |     output: Option<PathBuf>,
[INFO] [stdout]      | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]     --> src/main.rs:1053:5
[INFO] [stdout]      |
[INFO] [stdout] 1053 | /     /// [cargo] Package
[INFO] [stdout] 1054 | |     #[structopt(short, long, value_name("SPEC"))]
[INFO] [stdout] 1055 | |     package: Option<String>,
[INFO] [stdout]      | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<PathBuf, Infallible>
[INFO] [stdout]     --> src/main.rs:1056:5
[INFO] [stdout]      |
[INFO] [stdout] 1056 | /     /// [cargo] Path to Cargo.toml
[INFO] [stdout] 1057 | |     #[structopt(long, value_name("PATH"))]
[INFO] [stdout] 1058 | |     manifest_path: Option<PathBuf>,
[INFO] [stdout]      | |__________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]     --> src/main.rs:1180:5
[INFO] [stdout]      |
[INFO] [stdout] 1180 | /     /// [cargo] Package
[INFO] [stdout] 1181 | |     #[structopt(short, long, value_name("SPEC"))]
[INFO] [stdout] 1182 | |     package: Option<String>,
[INFO] [stdout]      | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<PathBuf, Infallible>
[INFO] [stdout]     --> src/main.rs:1183:5
[INFO] [stdout]      |
[INFO] [stdout] 1183 | /     /// [cargo] Path to Cargo.toml
[INFO] [stdout] 1184 | |     #[structopt(long, value_name("PATH"))]
[INFO] [stdout] 1185 | |     manifest_path: Option<PathBuf>,
[INFO] [stdout]      | |__________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/http.rs:28:27
[INFO] [stdout]    |
[INFO] [stdout] 28 |               for cookie in self
[INFO] [stdout]    |  ___________________________^
[INFO] [stdout] 29 | |                 .cookie_store
[INFO] [stdout] 30 | |                 .cookies(&self.endpoint.parse::<Url>().unwrap())
[INFO] [stdout]    | |________________________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 28 -             for cookie in self
[INFO] [stdout] 28 +             while let Some(cookie) = self
[INFO] [stdout]    |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 28 -             for cookie in self
[INFO] [stdout] 28 +             if let Some(cookie) = self
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cargo-atcoder` (bin "cargo-atcoder") due to 17 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "6a7c0c1d8a38892023c541ccbe7eca1240d5cb921e0fe16f76895f38ce6b2310", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a7c0c1d8a38892023c541ccbe7eca1240d5cb921e0fe16f76895f38ce6b2310", kill_on_drop: false }`
[INFO] [stdout] 6a7c0c1d8a38892023c541ccbe7eca1240d5cb921e0fe16f76895f38ce6b2310
