[INFO] fetching crate buzzec-strip-dag-node 1.0.0... [INFO] checking buzzec-strip-dag-node-1.0.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate buzzec-strip-dag-node 1.0.0 into /workspace/builds/worker-5-tc2/source [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-5-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate buzzec-strip-dag-node 1.0.0 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 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 3b6ec198e5278daf4b765abfd4cff0c620feb92a081bc8918de47515a10bddf9 [INFO] running `Command { std: "docker" "start" "-a" "3b6ec198e5278daf4b765abfd4cff0c620feb92a081bc8918de47515a10bddf9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3b6ec198e5278daf4b765abfd4cff0c620feb92a081bc8918de47515a10bddf9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3b6ec198e5278daf4b765abfd4cff0c620feb92a081bc8918de47515a10bddf9", kill_on_drop: false }` [INFO] [stdout] 3b6ec198e5278daf4b765abfd4cff0c620feb92a081bc8918de47515a10bddf9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 2b06369845e6029045764c9944975a6173e908c9fe74e53a91e05d6776b64d14 [INFO] running `Command { std: "docker" "start" "-a" "2b06369845e6029045764c9944975a6173e908c9fe74e53a91e05d6776b64d14", kill_on_drop: false }` [INFO] [stderr] Compiling version_check v0.9.3 [INFO] [stderr] Compiling proc-macro2 v1.0.27 [INFO] [stderr] Compiling libc v0.2.94 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Compiling syn v1.0.72 [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] Compiling num-traits v0.2.14 [INFO] [stderr] Checking treeline v0.1.0 [INFO] [stderr] Checking bimap v0.6.1 [INFO] [stderr] Checking predicates-tree v1.0.2 [INFO] [stderr] Checking regex-automata v0.1.9 [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] Compiling heck v0.3.2 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking bstr v0.2.16 [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 regex v1.5.4 [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: `DagVerifyError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) 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(Option>), [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] = note: `DagParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [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: `DagVerifyError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) 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(Option>), [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] = note: `DagParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/opt.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | / /// Strips a given node from the DAG. If the node is not present the DAG will not change. [INFO] [stdout] 10 | | #[structopt(short = "s", long = "strip")] [INFO] [stdout] 11 | | pub strip: Option>, [INFO] [stdout] | |__________________________________^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/opt.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | / /// Optional argument for evaluating from a command line argument rather than stdin. [INFO] [stdout] 13 | | #[structopt(short = "i", long = "in")] [INFO] [stdout] 14 | | pub in_: Option, [INFO] [stdout] | |___________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/opt.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | / /// Strips a given node from the DAG. If the node is not present the DAG will not change. [INFO] [stdout] 10 | | #[structopt(short = "s", long = "strip")] [INFO] [stdout] 11 | | pub strip: Option>, [INFO] [stdout] | |__________________________________^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/opt.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | / /// Optional argument for evaluating from a command line argument rather than stdin. [INFO] [stdout] 13 | | #[structopt(short = "i", long = "in")] [INFO] [stdout] 14 | | pub in_: Option, [INFO] [stdout] | |___________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `buzzec-strip-dag-node` (bin "buzzec-strip-dag-node" test) due to 2 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `buzzec-strip-dag-node` (bin "buzzec-strip-dag-node") due to 2 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "2b06369845e6029045764c9944975a6173e908c9fe74e53a91e05d6776b64d14", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2b06369845e6029045764c9944975a6173e908c9fe74e53a91e05d6776b64d14", kill_on_drop: false }` [INFO] [stdout] 2b06369845e6029045764c9944975a6173e908c9fe74e53a91e05d6776b64d14