[INFO] fetching crate crfs 0.2.0... [INFO] checking crfs-0.2.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate crfs 0.2.0 into /workspace/builds/worker-4-tc1/source [INFO] validating manifest of crates.io crate crfs 0.2.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate crfs 0.2.0 [INFO] finished tweaking crates.io crate crfs 0.2.0 [INFO] tweaked toml for crates.io crate crfs 0.2.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 73 packages [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.5.0) [INFO] [stderr] Adding bstr v0.2.17 (latest: v1.9.1) [INFO] [stderr] Adding clap v2.34.0 (latest: v4.5.4) [INFO] [stderr] Adding criterion v0.3.6 (latest: v0.5.1) [INFO] [stderr] Adding criterion-plot v0.4.5 (latest: v0.5.0) [INFO] [stderr] Adding half v1.8.3 (latest: v2.4.0) [INFO] [stderr] Adding hermit-abi v0.1.19 (latest: v0.3.9) [INFO] [stderr] Adding itertools v0.10.5 (latest: v0.12.1) [INFO] [stderr] Adding regex-automata v0.1.10 (latest: v0.4.6) [INFO] [stderr] Adding textwrap v0.11.0 (latest: v0.16.1) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded crfsuite v0.3.1 [INFO] [stderr] Downloaded cqdb v0.5.8 [INFO] [stderr] Downloaded jhash v0.1.1 [INFO] [stderr] Downloaded cqdb-sys v0.1.1 [INFO] [stderr] Downloaded array-init v2.1.0 [INFO] [stderr] Downloaded liblbfgs-sys v0.1.2 [INFO] [stderr] Downloaded crfsuite-sys v0.3.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] bd1a88a5a92fa54c58e1825eec13b038a88414b7f8c054dbab11efc2d3d83676 [INFO] running `Command { std: "docker" "start" "-a" "bd1a88a5a92fa54c58e1825eec13b038a88414b7f8c054dbab11efc2d3d83676", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bd1a88a5a92fa54c58e1825eec13b038a88414b7f8c054dbab11efc2d3d83676", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bd1a88a5a92fa54c58e1825eec13b038a88414b7f8c054dbab11efc2d3d83676", kill_on_drop: false }` [INFO] [stdout] bd1a88a5a92fa54c58e1825eec13b038a88414b7f8c054dbab11efc2d3d83676 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d41772577055ee5beecee143f29e13b4df5a7389823e9ed83bfbddef6f6fddde [INFO] running `Command { std: "docker" "start" "-a" "d41772577055ee5beecee143f29e13b4df5a7389823e9ed83bfbddef6f6fddde", kill_on_drop: false }` [INFO] [stderr] Compiling cmake v0.1.50 [INFO] [stderr] Checking bstr v1.9.1 [INFO] [stderr] Checking csv-core v0.1.11 [INFO] [stderr] Checking jhash v0.1.1 [INFO] [stderr] Checking array-init v2.1.0 [INFO] [stderr] Checking bstr v0.2.17 [INFO] [stderr] Checking csv v1.3.0 [INFO] [stderr] Compiling cqdb-sys v0.1.1 [INFO] [stderr] Compiling liblbfgs-sys v0.1.2 [INFO] [stderr] Compiling crfsuite-sys v0.3.1 [INFO] [stderr] Checking cqdb v0.5.8 [INFO] [stderr] Checking criterion v0.3.6 [INFO] [stderr] Checking crfs v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: fields `weight` and `group` are never read [INFO] [stdout] --> src/dataset.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 15 | pub struct Instance { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 23 | pub weight: f64, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 24 | /// Group ID of the instance [INFO] [stdout] 25 | pub group: u32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Instance` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `FeatureRefHeader` is never constructed [INFO] [stdout] --> src/model.rs:60:8 [INFO] [stdout] | [INFO] [stdout] 60 | struct FeatureRefHeader { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `FeatureHeader` is never constructed [INFO] [stdout] --> src/model.rs:69:8 [INFO] [stdout] | [INFO] [stdout] 69 | struct FeatureHeader { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `num_attrs` is never read [INFO] [stdout] --> src/tagger.rs:34:5 [INFO] [stdout] | [INFO] [stdout] 26 | pub struct Tagger<'a> { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] ... [INFO] [stdout] 34 | num_attrs: u32, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Tagger` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking crfsuite v0.3.1 [INFO] [stdout] warning: fields `weight` and `group` are never read [INFO] [stdout] --> src/dataset.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 15 | pub struct Instance { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 23 | pub weight: f64, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 24 | /// Group ID of the instance [INFO] [stdout] 25 | pub group: u32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Instance` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `FeatureRefHeader` is never constructed [INFO] [stdout] --> src/model.rs:60:8 [INFO] [stdout] | [INFO] [stdout] 60 | struct FeatureRefHeader { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `FeatureHeader` is never constructed [INFO] [stdout] --> src/model.rs:69:8 [INFO] [stdout] | [INFO] [stdout] 69 | struct FeatureHeader { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `num_attrs` is never read [INFO] [stdout] --> src/tagger.rs:34:5 [INFO] [stdout] | [INFO] [stdout] 26 | pub struct Tagger<'a> { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] ... [INFO] [stdout] 34 | num_attrs: u32, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Tagger` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.43s [INFO] running `Command { std: "docker" "inspect" "d41772577055ee5beecee143f29e13b4df5a7389823e9ed83bfbddef6f6fddde", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d41772577055ee5beecee143f29e13b4df5a7389823e9ed83bfbddef6f6fddde", kill_on_drop: false }` [INFO] [stdout] d41772577055ee5beecee143f29e13b4df5a7389823e9ed83bfbddef6f6fddde [INFO] checking crfs-0.2.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] extracting crate crfs 0.2.0 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate crfs 0.2.0 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate crfs 0.2.0 [INFO] finished tweaking crates.io crate crfs 0.2.0 [INFO] tweaked toml for crates.io crate crfs 0.2.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] bb9663e01c888eaabff8e37daf259ce516c60bc61d1de8e13af65e580ea34e1a [INFO] running `Command { std: "docker" "start" "-a" "bb9663e01c888eaabff8e37daf259ce516c60bc61d1de8e13af65e580ea34e1a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bb9663e01c888eaabff8e37daf259ce516c60bc61d1de8e13af65e580ea34e1a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bb9663e01c888eaabff8e37daf259ce516c60bc61d1de8e13af65e580ea34e1a", kill_on_drop: false }` [INFO] [stdout] bb9663e01c888eaabff8e37daf259ce516c60bc61d1de8e13af65e580ea34e1a [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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] bcf01e5b14b6e431eea2d55c6816bff7c6d77bae00d50b833c081739580f00d6 [INFO] running `Command { std: "docker" "start" "-a" "bcf01e5b14b6e431eea2d55c6816bff7c6d77bae00d50b833c081739580f00d6", kill_on_drop: false }` [INFO] [stderr] Compiling cmake v0.1.50 [INFO] [stderr] Checking csv-core v0.1.11 [INFO] [stderr] Checking bstr v1.9.1 [INFO] [stderr] Checking jhash v0.1.1 [INFO] [stderr] Checking array-init v2.1.0 [INFO] [stderr] Checking bstr v0.2.17 [INFO] [stderr] Checking csv v1.3.0 [INFO] [stderr] Compiling liblbfgs-sys v0.1.2 [INFO] [stderr] Compiling cqdb-sys v0.1.1 [INFO] [stderr] Compiling crfsuite-sys v0.3.1 [INFO] [stderr] Checking cqdb v0.5.8 [INFO] [stderr] Checking criterion v0.3.6 [INFO] [stderr] Checking crfs v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: fields `weight` and `group` are never read [INFO] [stdout] --> src/dataset.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 15 | pub struct Instance { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 23 | pub weight: f64, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 24 | /// Group ID of the instance [INFO] [stdout] 25 | pub group: u32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Instance` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `FeatureRefHeader` is never constructed [INFO] [stdout] --> src/model.rs:60:8 [INFO] [stdout] | [INFO] [stdout] 60 | struct FeatureRefHeader { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `FeatureHeader` is never constructed [INFO] [stdout] --> src/model.rs:69:8 [INFO] [stdout] | [INFO] [stdout] 69 | struct FeatureHeader { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `num_attrs` is never read [INFO] [stdout] --> src/tagger.rs:34:5 [INFO] [stdout] | [INFO] [stdout] 26 | pub struct Tagger<'a> { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] ... [INFO] [stdout] 34 | num_attrs: u32, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Tagger` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking crfsuite v0.3.1 [INFO] [stdout] warning: fields `weight` and `group` are never read [INFO] [stdout] --> src/dataset.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 15 | pub struct Instance { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 23 | pub weight: f64, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 24 | /// Group ID of the instance [INFO] [stdout] 25 | pub group: u32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Instance` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `FeatureRefHeader` is never constructed [INFO] [stdout] --> src/model.rs:60:8 [INFO] [stdout] | [INFO] [stdout] 60 | struct FeatureRefHeader { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `FeatureHeader` is never constructed [INFO] [stdout] --> src/model.rs:69:8 [INFO] [stdout] | [INFO] [stdout] 69 | struct FeatureHeader { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `num_attrs` is never read [INFO] [stdout] --> src/tagger.rs:34:5 [INFO] [stdout] | [INFO] [stdout] 26 | pub struct Tagger<'a> { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] ... [INFO] [stdout] 34 | num_attrs: u32, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Tagger` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.08s [INFO] running `Command { std: "docker" "inspect" "bcf01e5b14b6e431eea2d55c6816bff7c6d77bae00d50b833c081739580f00d6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bcf01e5b14b6e431eea2d55c6816bff7c6d77bae00d50b833c081739580f00d6", kill_on_drop: false }` [INFO] [stdout] bcf01e5b14b6e431eea2d55c6816bff7c6d77bae00d50b833c081739580f00d6