[INFO] fetching crate buzzec-strip-dag-node 1.0.0... [INFO] checking buzzec-strip-dag-node-1.0.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] extracting crate buzzec-strip-dag-node 1.0.0 into /workspace/builds/worker-4-tc1/source [INFO] validating manifest of crates.io crate buzzec-strip-dag-node 1.0.0 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 buzzec-strip-dag-node 1.0.0 [INFO] finished tweaking crates.io crate buzzec-strip-dag-node 1.0.0 [INFO] tweaked toml for crates.io crate buzzec-strip-dag-node 1.0.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate crates.io crate buzzec-strip-dag-node 1.0.0 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded structopt v0.3.21 [INFO] [stderr] Downloaded version_check v0.9.3 [INFO] [stderr] Downloaded structopt-derive v0.4.14 [INFO] [stderr] Downloaded predicates-tree v1.0.2 [INFO] [stderr] Downloaded predicates-core v1.0.2 [INFO] [stderr] Downloaded bimap v0.6.1 [INFO] [stderr] Downloaded unicode-segmentation v1.7.1 [INFO] [stderr] Downloaded heck v0.3.2 [INFO] [stderr] Downloaded assert_cmd v1.0.4 [INFO] [stderr] Downloaded float-cmp v0.8.0 [INFO] [stderr] Downloaded clap v2.33.3 [INFO] [stderr] Downloaded syn v1.0.72 [INFO] [stderr] Downloaded predicates v1.0.8 [INFO] [stderr] Downloaded slotmap v1.0.3 [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] 8beb918362e9d59262aaf95897b5c0134b8324d4ad89e7a7690ab9d674b89578 [INFO] running `Command { std: "docker" "start" "-a" "8beb918362e9d59262aaf95897b5c0134b8324d4ad89e7a7690ab9d674b89578", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8beb918362e9d59262aaf95897b5c0134b8324d4ad89e7a7690ab9d674b89578", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8beb918362e9d59262aaf95897b5c0134b8324d4ad89e7a7690ab9d674b89578", kill_on_drop: false }` [INFO] [stdout] 8beb918362e9d59262aaf95897b5c0134b8324d4ad89e7a7690ab9d674b89578 [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] c63513124852804aa0e87327769b475bd4d3926691d94aef5dca8f2153cda098 [INFO] running `Command { std: "docker" "start" "-a" "c63513124852804aa0e87327769b475bd4d3926691d94aef5dca8f2153cda098", kill_on_drop: false }` [INFO] [stderr] Compiling version_check v0.9.3 [INFO] [stderr] Compiling libc v0.2.94 [INFO] [stderr] Compiling syn v1.0.72 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Compiling unicode-segmentation v1.7.1 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Checking predicates-core v1.0.2 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling doc-comment v0.3.3 [INFO] [stderr] Checking treeline v0.1.0 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Checking difference v2.0.0 [INFO] [stderr] Checking normalize-line-endings v0.3.0 [INFO] [stderr] Compiling heck v0.3.2 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling slotmap v1.0.3 [INFO] [stderr] Checking bstr v0.2.16 [INFO] [stderr] Checking predicates-tree v1.0.2 [INFO] [stderr] Checking bimap v0.6.1 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking wait-timeout v0.2.0 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking float-cmp v0.8.0 [INFO] [stderr] Checking predicates v1.0.8 [INFO] [stderr] Checking assert_cmd v1.0.4 [INFO] [stderr] Compiling structopt-derive v0.4.14 [INFO] [stderr] Checking structopt v0.3.21 [INFO] [stderr] Checking buzzec-strip-dag-node v1.0.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/dag.rs:219:19 [INFO] [stdout] | [INFO] [stdout] 219 | CycleDetected(Option>), [INFO] [stdout] | ------------- ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` 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] 219 | CycleDetected(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `first`, `second`, and `third` are never read [INFO] [stdout] --> src/dag.rs:232:9 [INFO] [stdout] | [INFO] [stdout] 231 | BadArgumentPart { [INFO] [stdout] | --------------- fields in this variant [INFO] [stdout] 232 | first: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 233 | second: String, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 234 | third: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/dag.rs:219:19 [INFO] [stdout] | [INFO] [stdout] 219 | CycleDetected(Option>), [INFO] [stdout] | ------------- ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` 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] 219 | CycleDetected(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `first`, `second`, and `third` are never read [INFO] [stdout] --> src/dag.rs:232:9 [INFO] [stdout] | [INFO] [stdout] 231 | BadArgumentPart { [INFO] [stdout] | --------------- fields in this variant [INFO] [stdout] 232 | first: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 233 | second: String, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 234 | third: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.06s [INFO] running `Command { std: "docker" "inspect" "c63513124852804aa0e87327769b475bd4d3926691d94aef5dca8f2153cda098", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c63513124852804aa0e87327769b475bd4d3926691d94aef5dca8f2153cda098", kill_on_drop: false }` [INFO] [stdout] c63513124852804aa0e87327769b475bd4d3926691d94aef5dca8f2153cda098 [INFO] checking buzzec-strip-dag-node-1.0.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] extracting crate buzzec-strip-dag-node 1.0.0 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate buzzec-strip-dag-node 1.0.0 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate buzzec-strip-dag-node 1.0.0 [INFO] finished tweaking crates.io crate buzzec-strip-dag-node 1.0.0 [INFO] tweaked toml for crates.io crate buzzec-strip-dag-node 1.0.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate crates.io crate buzzec-strip-dag-node 1.0.0 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 33176be25625c36cf2307662865f153d566294113b81fa9ff32573d5014bb238 [INFO] running `Command { std: "docker" "start" "-a" "33176be25625c36cf2307662865f153d566294113b81fa9ff32573d5014bb238", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "33176be25625c36cf2307662865f153d566294113b81fa9ff32573d5014bb238", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "33176be25625c36cf2307662865f153d566294113b81fa9ff32573d5014bb238", kill_on_drop: false }` [INFO] [stdout] 33176be25625c36cf2307662865f153d566294113b81fa9ff32573d5014bb238 [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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c96a1904ee7bc1fc41da79067f07993983bea50e2837699f59858728d0963fdc [INFO] running `Command { std: "docker" "start" "-a" "c96a1904ee7bc1fc41da79067f07993983bea50e2837699f59858728d0963fdc", kill_on_drop: false }` [INFO] [stderr] Compiling version_check v0.9.3 [INFO] [stderr] Compiling libc v0.2.94 [INFO] [stderr] Compiling syn v1.0.72 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling unicode-segmentation v1.7.1 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Compiling doc-comment v0.3.3 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking predicates-core v1.0.2 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Checking normalize-line-endings v0.3.0 [INFO] [stderr] Checking difference v2.0.0 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling heck v0.3.2 [INFO] [stderr] Compiling slotmap v1.0.3 [INFO] [stderr] Checking treeline v0.1.0 [INFO] [stderr] Checking predicates-tree v1.0.2 [INFO] [stderr] Checking bstr v0.2.16 [INFO] [stderr] Checking bimap v0.6.1 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking wait-timeout v0.2.0 [INFO] [stderr] Checking float-cmp v0.8.0 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking predicates v1.0.8 [INFO] [stderr] Checking assert_cmd v1.0.4 [INFO] [stderr] Compiling structopt-derive v0.4.14 [INFO] [stderr] Checking structopt v0.3.21 [INFO] [stderr] Checking buzzec-strip-dag-node v1.0.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/dag.rs:219:19 [INFO] [stdout] | [INFO] [stdout] 219 | CycleDetected(Option>), [INFO] [stdout] | ------------- ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` 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] 219 | CycleDetected(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `first`, `second`, and `third` are never read [INFO] [stdout] --> src/dag.rs:232:9 [INFO] [stdout] | [INFO] [stdout] 231 | BadArgumentPart { [INFO] [stdout] | --------------- fields in this variant [INFO] [stdout] 232 | first: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 233 | second: String, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 234 | third: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/dag.rs:219:19 [INFO] [stdout] | [INFO] [stdout] 219 | CycleDetected(Option>), [INFO] [stdout] | ------------- ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` 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] 219 | CycleDetected(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `first`, `second`, and `third` are never read [INFO] [stdout] --> src/dag.rs:232:9 [INFO] [stdout] | [INFO] [stdout] 231 | BadArgumentPart { [INFO] [stdout] | --------------- fields in this variant [INFO] [stdout] 232 | first: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 233 | second: String, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 234 | third: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.44s [INFO] running `Command { std: "docker" "inspect" "c96a1904ee7bc1fc41da79067f07993983bea50e2837699f59858728d0963fdc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c96a1904ee7bc1fc41da79067f07993983bea50e2837699f59858728d0963fdc", kill_on_drop: false }` [INFO] [stdout] c96a1904ee7bc1fc41da79067f07993983bea50e2837699f59858728d0963fdc