[INFO] fetching crate snowchains_core 0.13.3...
[INFO] checking snowchains_core-0.13.3 against master#642c19bfc3a5c1de985bf5d0cc8207ac9d22708a for pr-148577
[INFO] extracting crate snowchains_core 0.13.3 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate snowchains_core 0.13.3
[INFO] finished tweaking crates.io crate snowchains_core 0.13.3
[INFO] tweaked toml for crates.io crate snowchains_core 0.13.3 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate snowchains_core 0.13.3 on toolchain 642c19bfc3a5c1de985bf5d0cc8207ac9d22708a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate snowchains_core 0.13.3 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" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[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_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" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 47fd9628f19f5299ac6c3696c777d572bd3097c06a9fdc4e8ae8acb50cea4a06
[INFO] running `Command { std: "docker" "start" "-a" "47fd9628f19f5299ac6c3696c777d572bd3097c06a9fdc4e8ae8acb50cea4a06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47fd9628f19f5299ac6c3696c777d572bd3097c06a9fdc4e8ae8acb50cea4a06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47fd9628f19f5299ac6c3696c777d572bd3097c06a9fdc4e8ae8acb50cea4a06", kill_on_drop: false }`
[INFO] [stdout] 47fd9628f19f5299ac6c3696c777d572bd3097c06a9fdc4e8ae8acb50cea4a06
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "fde215f5240b0443e1300d7ca5d97e371b7abd39b404aa9405119d9f339712bd", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `cell`
[INFO] [stdout]   --> src/web/mod.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 94 |     cell,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cell`
[INFO] [stdout]   --> src/web/mod.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 94 |     cell,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `phantom` is never read
[INFO] [stdout]    --> src/web/mod.rs:879:5
[INFO] [stdout]     |
[INFO] [stdout] 879 |     phantom: PhantomData<fn() -> C>,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `extract_meta_x_csrf_token` is never used
[INFO] [stdout]    --> src/web/codeforces.rs:639:8
[INFO] [stdout]     |
[INFO] [stdout] 467 | #[ext]
[INFO] [stdout]     | ------ method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 639 |     fn extract_meta_x_csrf_token(&self) -> anyhow::Result<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: struct `User` is never constructed
[INFO] [stdout]    --> src/web/codeforces.rs:664:23
[INFO] [stdout]     |
[INFO] [stdout] 664 |     pub(super) struct User {
[INFO] [stdout]     |                       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `SubmissionVerdict` is never used
[INFO] [stdout]    --> src/web/codeforces.rs:732:21
[INFO] [stdout]     |
[INFO] [stdout] 732 |     pub(super) enum SubmissionVerdict {
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_all_problems` is never used
[INFO] [stdout]    --> src/web/yukicoder.rs:683:12
[INFO] [stdout]     |
[INFO] [stdout] 599 |     pub(super) trait SessionMutExt: SessionMut {
[INFO] [stdout]     |                      ------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 683 |         fn get_all_problems(&mut self) -> anyhow::Result<Vec<Problem>> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ReqwestAsyncClientExt` is never used
[INFO] [stdout]    --> src/web/yukicoder.rs:772:22
[INFO] [stdout]     |
[INFO] [stdout] 772 |     pub(super) trait ReqwestAsyncClientExt {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `phantom` is never read
[INFO] [stdout]    --> src/web/mod.rs:879:5
[INFO] [stdout]     |
[INFO] [stdout] 879 |     phantom: PhantomData<fn() -> C>,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `extract_meta_x_csrf_token` is never used
[INFO] [stdout]    --> src/web/codeforces.rs:639:8
[INFO] [stdout]     |
[INFO] [stdout] 467 | #[ext]
[INFO] [stdout]     | ------ method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 639 |     fn extract_meta_x_csrf_token(&self) -> anyhow::Result<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: struct `User` is never constructed
[INFO] [stdout]    --> src/web/codeforces.rs:664:23
[INFO] [stdout]     |
[INFO] [stdout] 664 |     pub(super) struct User {
[INFO] [stdout]     |                       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `SubmissionVerdict` is never used
[INFO] [stdout]    --> src/web/codeforces.rs:732:21
[INFO] [stdout]     |
[INFO] [stdout] 732 |     pub(super) enum SubmissionVerdict {
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_all_problems` is never used
[INFO] [stdout]    --> src/web/yukicoder.rs:683:12
[INFO] [stdout]     |
[INFO] [stdout] 599 |     pub(super) trait SessionMutExt: SessionMut {
[INFO] [stdout]     |                      ------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 683 |         fn get_all_problems(&mut self) -> anyhow::Result<Vec<Problem>> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ReqwestAsyncClientExt` is never used
[INFO] [stdout]    --> src/web/yukicoder.rs:772:22
[INFO] [stdout]     |
[INFO] [stdout] 772 |     pub(super) trait ReqwestAsyncClientExt {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> tests/yukicoder-retrieve-test-cases.rs:65:19
[INFO] [stdout]    |
[INFO] [stdout] 65 |         PrintAnsi(String),
[INFO] [stdout]    |         --------- ^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Message` 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] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 65 -         PrintAnsi(String),
[INFO] [stdout] 65 +         PrintAnsi(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> tests/yukicoder-retrieve-test-cases.rs:66:14
[INFO] [stdout]    |
[INFO] [stdout] 66 |         Warn(String),
[INFO] [stdout]    |         ---- ^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 66 -         Warn(String),
[INFO] [stdout] 66 +         Warn(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> tests/yukicoder-retrieve-test-cases.rs:67:19
[INFO] [stdout]    |
[INFO] [stdout] 67 |         OnRequest(Method, Url),
[INFO] [stdout]    |         --------- ^^^^^^  ^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 67 -         OnRequest(Method, Url),
[INFO] [stdout] 67 +         OnRequest((), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> tests/yukicoder-retrieve-test-cases.rs:68:20
[INFO] [stdout]    |
[INFO] [stdout] 68 |         OnResponse(StatusCode, StatusCodeColor),
[INFO] [stdout]    |         ---------- ^^^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 68 -         OnResponse(StatusCode, StatusCodeColor),
[INFO] [stdout] 68 +         OnResponse((), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `CredentialsVia` is never used
[INFO] [stdout]   --> examples/yukicoder-retrieve-languages.rs:23:6
[INFO] [stdout]    |
[INFO] [stdout] 23 | enum CredentialsVia {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> tests/atcoder-retrieve-test-cases.rs:117:19
[INFO] [stdout]     |
[INFO] [stdout] 117 |         PrintAnsi(String),
[INFO] [stdout]     |         --------- ^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Message` 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] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 117 -         PrintAnsi(String),
[INFO] [stdout] 117 +         PrintAnsi(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> tests/atcoder-retrieve-test-cases.rs:118:14
[INFO] [stdout]     |
[INFO] [stdout] 118 |         Warn(String),
[INFO] [stdout]     |         ---- ^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 118 -         Warn(String),
[INFO] [stdout] 118 +         Warn(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> tests/atcoder-retrieve-test-cases.rs:119:19
[INFO] [stdout]     |
[INFO] [stdout] 119 |         OnRequest(Method, Url),
[INFO] [stdout]     |         --------- ^^^^^^  ^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]     |
[INFO] [stdout] 119 -         OnRequest(Method, Url),
[INFO] [stdout] 119 +         OnRequest((), ()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> tests/atcoder-retrieve-test-cases.rs:120:20
[INFO] [stdout]     |
[INFO] [stdout] 120 |         OnResponse(StatusCode, StatusCodeColor),
[INFO] [stdout]     |         ---------- ^^^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]     |
[INFO] [stdout] 120 -         OnResponse(StatusCode, StatusCodeColor),
[INFO] [stdout] 120 +         OnResponse((), ()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 53.06s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: html5ever v0.25.1, nom v6.1.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "fde215f5240b0443e1300d7ca5d97e371b7abd39b404aa9405119d9f339712bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fde215f5240b0443e1300d7ca5d97e371b7abd39b404aa9405119d9f339712bd", kill_on_drop: false }`
[INFO] [stdout] fde215f5240b0443e1300d7ca5d97e371b7abd39b404aa9405119d9f339712bd
