[INFO] fetching crate source-span 2.7.0... [INFO] checking source-span-2.7.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170 [INFO] extracting crate source-span 2.7.0 into /workspace/builds/worker-0-tc1/source [INFO] started tweaking crates.io crate source-span 2.7.0 [INFO] finished tweaking crates.io crate source-span 2.7.0 [INFO] tweaked toml for crates.io crate source-span 2.7.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate source-span 2.7.0 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate source-span 2.7.0 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] fa331d4f19622fe33c86dde7dfe8f5141ca91266b37c7f4f0062a0b7d1c75942 [INFO] running `Command { std: "docker" "start" "-a" "fa331d4f19622fe33c86dde7dfe8f5141ca91266b37c7f4f0062a0b7d1c75942", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fa331d4f19622fe33c86dde7dfe8f5141ca91266b37c7f4f0062a0b7d1c75942", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fa331d4f19622fe33c86dde7dfe8f5141ca91266b37c7f4f0062a0b7d1c75942", kill_on_drop: false }` [INFO] [stdout] fa331d4f19622fe33c86dde7dfe8f5141ca91266b37c7f4f0062a0b7d1c75942 [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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 22b330b27e95052c03f31d12f1246076f33d96b21d2095885a2fd076a204ac31 [INFO] running `Command { std: "docker" "start" "-a" "22b330b27e95052c03f31d12f1246076f33d96b21d2095885a2fd076a204ac31", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.94 [INFO] [stderr] Checking numtoa v0.1.0 [INFO] [stderr] Checking utf8-decode v1.0.1 [INFO] [stderr] Checking termion v1.5.6 [INFO] [stderr] Checking source-span v2.7.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/buffer/lazy.rs:197:14 [INFO] [stdout] | [INFO] [stdout] 197 | pub fn iter(&self) -> Iter { [INFO] [stdout] | ^^^^^ ------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 197 | pub fn iter(&self) -> Iter<'_, E, I, M> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/buffer/lazy.rs:213:19 [INFO] [stdout] | [INFO] [stdout] 213 | pub fn iter_from(&self, pos: Position) -> Iter { [INFO] [stdout] | ^^^^^ ------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 213 | pub fn iter_from(&self, pos: Position) -> Iter<'_, E, I, M> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/buffer/lazy.rs:232:19 [INFO] [stdout] | [INFO] [stdout] 232 | pub fn iter_span(&self, span: Span) -> Iter { [INFO] [stdout] | ^^^^^ ------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 232 | pub fn iter_span(&self, span: Span) -> Iter<'_, E, I, M> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/buffer/lazy.rs:197:14 [INFO] [stdout] | [INFO] [stdout] 197 | pub fn iter(&self) -> Iter { [INFO] [stdout] | ^^^^^ ------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 197 | pub fn iter(&self) -> Iter<'_, E, I, M> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/buffer/lazy.rs:213:19 [INFO] [stdout] | [INFO] [stdout] 213 | pub fn iter_from(&self, pos: Position) -> Iter { [INFO] [stdout] | ^^^^^ ------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 213 | pub fn iter_from(&self, pos: Position) -> Iter<'_, E, I, M> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/buffer/lazy.rs:232:19 [INFO] [stdout] | [INFO] [stdout] 232 | pub fn iter_span(&self, span: Span) -> Iter { [INFO] [stdout] | ^^^^^ ------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 232 | pub fn iter_span(&self, span: Span) -> Iter<'_, E, I, M> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `string` and `span` are never read [INFO] [stdout] --> examples/formatting_challenge.rs:8:2 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct Token { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 8 | string: String, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 9 | span: Span, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Token` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.85s [INFO] running `Command { std: "docker" "inspect" "22b330b27e95052c03f31d12f1246076f33d96b21d2095885a2fd076a204ac31", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "22b330b27e95052c03f31d12f1246076f33d96b21d2095885a2fd076a204ac31", kill_on_drop: false }` [INFO] [stdout] 22b330b27e95052c03f31d12f1246076f33d96b21d2095885a2fd076a204ac31