[INFO] fetching crate jsona 0.6.0... [INFO] checking jsona-0.6.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate jsona 0.6.0 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate jsona 0.6.0 [INFO] finished tweaking crates.io crate jsona 0.6.0 [INFO] tweaked toml for crates.io crate jsona 0.6.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate jsona 0.6.0 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 jsona 0.6.0 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] [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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] d0e49d0c87060e605849ce96c22e21921a281498173baa90013d57516dd28f24 [INFO] running `Command { std: "docker" "start" "-a" "d0e49d0c87060e605849ce96c22e21921a281498173baa90013d57516dd28f24", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d0e49d0c87060e605849ce96c22e21921a281498173baa90013d57516dd28f24", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d0e49d0c87060e605849ce96c22e21921a281498173baa90013d57516dd28f24", kill_on_drop: false }` [INFO] [stdout] d0e49d0c87060e605849ce96c22e21921a281498173baa90013d57516dd28f24 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] d9058b3aaa3aa89e3a8016313259b0459b4e56c4d28ce54cb12135c8164360d2 [INFO] running `Command { std: "docker" "start" "-a" "d9058b3aaa3aa89e3a8016313259b0459b4e56c4d28ce54cb12135c8164360d2", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.99 [INFO] [stderr] Compiling serde_derive v1.0.144 [INFO] [stderr] Compiling serde v1.0.144 [INFO] [stderr] Compiling beef v0.5.2 [INFO] [stderr] Compiling regex-syntax v0.6.27 [INFO] [stderr] Compiling serde_json v1.0.85 [INFO] [stderr] Checking hashbrown v0.12.3 [INFO] [stderr] Checking countme v3.0.1 [INFO] [stderr] Compiling indexmap v1.6.2 [INFO] [stderr] Checking text-size v1.1.0 [INFO] [stderr] Checking arc-swap v1.5.1 [INFO] [stderr] Checking once_cell v1.14.0 [INFO] [stderr] Checking rowan v0.15.8 [INFO] [stderr] Compiling logos-derive v0.12.1 [INFO] [stderr] Compiling thiserror-impl v1.0.34 [INFO] [stderr] Checking thiserror v1.0.34 [INFO] [stderr] Checking logos v0.12.1 [INFO] [stderr] Checking jsona v0.6.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: value assigned to `syntax` is never read [INFO] [stdout] --> src/dom/error.rs:8:19 [INFO] [stdout] | [INFO] [stdout] 8 | InvalidNode { syntax: SyntaxElement }, [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: value assigned to `syntax` is never read [INFO] [stdout] --> src/dom/error.rs:10:21 [INFO] [stdout] | [INFO] [stdout] 10 | InvalidString { syntax: SyntaxElement }, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `syntax` is never read [INFO] [stdout] --> src/dom/error.rs:12:21 [INFO] [stdout] | [INFO] [stdout] 12 | InvalidNumber { syntax: SyntaxElement }, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `key` is never read [INFO] [stdout] --> src/dom/error.rs:14:23 [INFO] [stdout] | [INFO] [stdout] 14 | ConflictingKeys { key: Key, other_key: Key }, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `other_key` is never read [INFO] [stdout] --> src/dom/error.rs:14:33 [INFO] [stdout] | [INFO] [stdout] 14 | ConflictingKeys { key: Key, other_key: Key }, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `syntax` is never read [INFO] [stdout] --> src/dom/error.rs:8:19 [INFO] [stdout] | [INFO] [stdout] 8 | InvalidNode { syntax: SyntaxElement }, [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: value assigned to `syntax` is never read [INFO] [stdout] --> src/dom/error.rs:10:21 [INFO] [stdout] | [INFO] [stdout] 10 | InvalidString { syntax: SyntaxElement }, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `syntax` is never read [INFO] [stdout] --> src/dom/error.rs:12:21 [INFO] [stdout] | [INFO] [stdout] 12 | InvalidNumber { syntax: SyntaxElement }, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `key` is never read [INFO] [stdout] --> src/dom/error.rs:14:23 [INFO] [stdout] | [INFO] [stdout] 14 | ConflictingKeys { key: Key, other_key: Key }, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `other_key` is never read [INFO] [stdout] --> src/dom/error.rs:14:33 [INFO] [stdout] | [INFO] [stdout] 14 | ConflictingKeys { key: Key, other_key: Key }, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `errors` is never read [INFO] [stdout] --> src/error.rs:9:21 [INFO] [stdout] | [INFO] [stdout] 9 | InvalidSyntax { errors: Vec }, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `errors` is never read [INFO] [stdout] --> src/error.rs:11:18 [INFO] [stdout] | [INFO] [stdout] 11 | InvalidDom { errors: Vec }, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `errors` is never read [INFO] [stdout] --> src/error.rs:9:21 [INFO] [stdout] | [INFO] [stdout] 9 | InvalidSyntax { errors: Vec }, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `errors` is never read [INFO] [stdout] --> src/error.rs:11:18 [INFO] [stdout] | [INFO] [stdout] 11 | InvalidDom { errors: Vec }, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/util/mapper.rs:46:27 [INFO] [stdout] | [INFO] [stdout] 46 | pub struct CharacterRange(u64, u64); [INFO] [stdout] | -------------- ^^^ ^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing these fields [INFO] [stdout] = note: `CharacterRange` has derived impls for the traits `Clone` and `Debug`, but these are 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: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/dom/visitor.rs:88:32 [INFO] [stdout] | [INFO] [stdout] 88 | pub fn visit_annotations(node: &Node) -> Visitor<()> { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 88 | pub fn visit_annotations(node: &Node) -> Visitor<'_, ()> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/formatter/options.rs:47:33 [INFO] [stdout] | [INFO] [stdout] 47 | / val.as_ref() [INFO] [stdout] 48 | | .parse() [INFO] [stdout] | |____________________________________________^ [INFO] [stdout] ... [INFO] [stdout] 110 | / create_options!( [INFO] [stdout] 111 | | /// All the formatting options. [INFO] [stdout] 112 | | #[derive(Debug, Clone, Eq, PartialEq, Serialize, Deserialize)] [INFO] [stdout] 113 | | pub struct Options { [INFO] [stdout] ... | [INFO] [stdout] 127 | | ); [INFO] [stdout] | |_- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] = note: this error originates in the macro `create_options` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/util/mapper.rs:46:27 [INFO] [stdout] | [INFO] [stdout] 46 | pub struct CharacterRange(u64, u64); [INFO] [stdout] | -------------- ^^^ ^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing these fields [INFO] [stdout] = note: `CharacterRange` has derived impls for the traits `Clone` and `Debug`, but these are 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: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/dom/visitor.rs:88:32 [INFO] [stdout] | [INFO] [stdout] 88 | pub fn visit_annotations(node: &Node) -> Visitor<()> { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 88 | pub fn visit_annotations(node: &Node) -> Visitor<'_, ()> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/formatter/options.rs:47:33 [INFO] [stdout] | [INFO] [stdout] 47 | / val.as_ref() [INFO] [stdout] 48 | | .parse() [INFO] [stdout] | |____________________________________________^ [INFO] [stdout] ... [INFO] [stdout] 110 | / create_options!( [INFO] [stdout] 111 | | /// All the formatting options. [INFO] [stdout] 112 | | #[derive(Debug, Clone, Eq, PartialEq, Serialize, Deserialize)] [INFO] [stdout] 113 | | pub struct Options { [INFO] [stdout] ... | [INFO] [stdout] 127 | | ); [INFO] [stdout] | |_- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] = note: this error originates in the macro `create_options` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `jsona` (lib test) due to 1 previous error; 9 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `jsona` (lib) due to 1 previous error; 9 warnings emitted [INFO] running `Command { std: "docker" "inspect" "d9058b3aaa3aa89e3a8016313259b0459b4e56c4d28ce54cb12135c8164360d2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d9058b3aaa3aa89e3a8016313259b0459b4e56c4d28ce54cb12135c8164360d2", kill_on_drop: false }` [INFO] [stdout] d9058b3aaa3aa89e3a8016313259b0459b4e56c4d28ce54cb12135c8164360d2