[INFO] fetching crate source-span 2.7.0... [INFO] building source-span-2.7.0 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1 [INFO] extracting crate source-span 2.7.0 into /workspace/builds/worker-3-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-3-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate source-span 2.7.0 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded utf8-decode v1.0.1 [INFO] [stderr] Downloaded redox_syscall v0.2.6 [INFO] [stderr] Downloaded numtoa v0.1.0 [INFO] [stderr] Downloaded redox_termios v0.1.2 [INFO] [stderr] Downloaded termion v1.5.6 [INFO] [stderr] Downloaded libc v0.2.94 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 470c0a8b5fa20285e39f5af3547f4705babe6296e45352ccbcf64daf855d7a00 [INFO] running `Command { std: "docker" "start" "-a" "470c0a8b5fa20285e39f5af3547f4705babe6296e45352ccbcf64daf855d7a00", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "470c0a8b5fa20285e39f5af3547f4705babe6296e45352ccbcf64daf855d7a00", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "470c0a8b5fa20285e39f5af3547f4705babe6296e45352ccbcf64daf855d7a00", kill_on_drop: false }` [INFO] [stdout] 470c0a8b5fa20285e39f5af3547f4705babe6296e45352ccbcf64daf855d7a00 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 19129cb0dcd41a636b6d30cc2c0459dbe75bc01575130ff0db2f6c595c2105a9 [INFO] running `Command { std: "docker" "start" "-a" "19129cb0dcd41a636b6d30cc2c0459dbe75bc01575130ff0db2f6c595c2105a9", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.94 [INFO] [stderr] Compiling numtoa v0.1.0 [INFO] [stderr] Compiling termion v1.5.6 [INFO] [stderr] Compiling source-span v2.7.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/buffer/lazy.rs:197:14 [INFO] [stdout] | [INFO] [stdout] 197 | pub fn iter(&self) -> Iter { [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] 197 | pub fn iter(&self) -> Iter<'_, E, I, M> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is 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 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] help: use `'_` for type 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: hiding a lifetime that's elided elsewhere is 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 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] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 232 | pub fn iter_span(&self, span: Span) -> Iter<'_, E, I, M> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.00s [INFO] running `Command { std: "docker" "inspect" "19129cb0dcd41a636b6d30cc2c0459dbe75bc01575130ff0db2f6c595c2105a9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "19129cb0dcd41a636b6d30cc2c0459dbe75bc01575130ff0db2f6c595c2105a9", kill_on_drop: false }` [INFO] [stdout] 19129cb0dcd41a636b6d30cc2c0459dbe75bc01575130ff0db2f6c595c2105a9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9b6758585e5274973d2784941e1a69ff4076f1b94376a591969fcb4a5faaf057 [INFO] running `Command { std: "docker" "start" "-a" "9b6758585e5274973d2784941e1a69ff4076f1b94376a591969fcb4a5faaf057", kill_on_drop: false }` [INFO] [stderr] Compiling utf8-decode v1.0.1 [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/buffer/lazy.rs:197:14 [INFO] [stdout] | [INFO] [stdout] 197 | pub fn iter(&self) -> Iter { [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] 197 | pub fn iter(&self) -> Iter<'_, E, I, M> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is 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 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] help: use `'_` for type 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: hiding a lifetime that's elided elsewhere is 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 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] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 232 | pub fn iter_span(&self, span: Span) -> Iter<'_, E, I, M> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling source-span v2.7.0 (/opt/rustwide/workdir) [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)]` (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/buffer/lazy.rs:197:14 [INFO] [stdout] | [INFO] [stdout] 197 | pub fn iter(&self) -> Iter { [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] 197 | pub fn iter(&self) -> Iter<'_, E, I, M> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is 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 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] help: use `'_` for type 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: hiding a lifetime that's elided elsewhere is 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 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] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 232 | pub fn iter_span(&self, span: Span) -> Iter<'_, E, I, M> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.08s [INFO] running `Command { std: "docker" "inspect" "9b6758585e5274973d2784941e1a69ff4076f1b94376a591969fcb4a5faaf057", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9b6758585e5274973d2784941e1a69ff4076f1b94376a591969fcb4a5faaf057", kill_on_drop: false }` [INFO] [stdout] 9b6758585e5274973d2784941e1a69ff4076f1b94376a591969fcb4a5faaf057