[INFO] fetching crate minilp 0.2.2... [INFO] checking minilp-0.2.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate minilp 0.2.2 into /workspace/builds/worker-5-tc1/source [INFO] validating manifest of crates.io crate minilp 0.2.2 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 minilp 0.2.2 [INFO] finished tweaking crates.io crate minilp 0.2.2 [INFO] tweaked toml for crates.io crate minilp 0.2.2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate crates.io crate minilp 0.2.2 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] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded winapi-util v0.1.4 [INFO] [stderr] Downloaded hermit-abi v0.1.10 [INFO] [stderr] Downloaded sprs v0.7.1 [INFO] [stderr] Downloaded matrixmultiply v0.2.3 [INFO] [stderr] Downloaded regex v1.3.6 [INFO] [stderr] Downloaded ndarray v0.13.0 [INFO] [stderr] Downloaded libc v0.2.68 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] a2d1fe58d705d7dbf42ff32a6a5f9ea3918f4481550c59bac68e8b4004cd4a61 [INFO] running `Command { std: "docker" "start" "-a" "a2d1fe58d705d7dbf42ff32a6a5f9ea3918f4481550c59bac68e8b4004cd4a61", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a2d1fe58d705d7dbf42ff32a6a5f9ea3918f4481550c59bac68e8b4004cd4a61", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a2d1fe58d705d7dbf42ff32a6a5f9ea3918f4481550c59bac68e8b4004cd4a61", kill_on_drop: false }` [INFO] [stdout] a2d1fe58d705d7dbf42ff32a6a5f9ea3918f4481550c59bac68e8b4004cd4a61 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 206fbe3a583d86c2bce6778f2b7b83feb86ef5660dc4ef90c46314b68ed26607 [INFO] running `Command { std: "docker" "start" "-a" "206fbe3a583d86c2bce6778f2b7b83feb86ef5660dc4ef90c46314b68ed26607", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling libc v0.2.68 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling ndarray v0.13.0 [INFO] [stderr] Checking rawpointer v0.2.1 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Checking either v1.5.3 [INFO] [stderr] Checking ppv-lite86 v0.2.6 [INFO] [stderr] Checking regex-syntax v0.6.17 [INFO] [stderr] Checking termcolor v1.1.0 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking matrixmultiply v0.2.3 [INFO] [stderr] Checking itertools v0.8.2 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Compiling num-complex v0.2.4 [INFO] [stderr] Compiling num-integer v0.1.42 [INFO] [stderr] Checking aho-corasick v0.7.10 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand_pcg v0.2.1 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking regex v1.3.6 [INFO] [stderr] Checking num-traits v0.1.43 [INFO] [stderr] Checking env_logger v0.7.1 [INFO] [stderr] Checking sprs v0.7.1 [INFO] [stderr] Checking minilp v0.2.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/ordering.rs:490:17 [INFO] [stdout] | [INFO] [stdout] 490 | let mut cur_step = dfs_stack.last_mut().unwrap(); [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `row2col` and `block_cols` are never read [INFO] [stdout] --> src/ordering.rs:547:9 [INFO] [stdout] | [INFO] [stdout] 545 | pub struct BlockDiagForm { [INFO] [stdout] | ------------- fields in this struct [INFO] [stdout] 546 | /// Row permutation: for each original row its new row number so that diag is nonzero. [INFO] [stdout] 547 | pub row2col: Vec, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 548 | /// For each block its set of columns (the order of blocks is lower block triangular) [INFO] [stdout] 549 | pub block_cols: Vec>, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `BlockDiagForm` has derived impls for the traits `Debug` and `Clone`, 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: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/ordering.rs:490:17 [INFO] [stdout] | [INFO] [stdout] 490 | let mut cur_step = dfs_stack.last_mut().unwrap(); [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.89s [INFO] running `Command { std: "docker" "inspect" "206fbe3a583d86c2bce6778f2b7b83feb86ef5660dc4ef90c46314b68ed26607", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "206fbe3a583d86c2bce6778f2b7b83feb86ef5660dc4ef90c46314b68ed26607", kill_on_drop: false }` [INFO] [stdout] 206fbe3a583d86c2bce6778f2b7b83feb86ef5660dc4ef90c46314b68ed26607 [INFO] checking minilp-0.2.2 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] extracting crate minilp 0.2.2 into /workspace/builds/worker-5-tc2/source [INFO] validating manifest of crates.io crate minilp 0.2.2 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 minilp 0.2.2 [INFO] finished tweaking crates.io crate minilp 0.2.2 [INFO] tweaked toml for crates.io crate minilp 0.2.2 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate crates.io crate minilp 0.2.2 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e805a4d12c22391260164d98e104b7327cf7a5948c24f878e9bf37e8e8a2f50a [INFO] running `Command { std: "docker" "start" "-a" "e805a4d12c22391260164d98e104b7327cf7a5948c24f878e9bf37e8e8a2f50a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e805a4d12c22391260164d98e104b7327cf7a5948c24f878e9bf37e8e8a2f50a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e805a4d12c22391260164d98e104b7327cf7a5948c24f878e9bf37e8e8a2f50a", kill_on_drop: false }` [INFO] [stdout] e805a4d12c22391260164d98e104b7327cf7a5948c24f878e9bf37e8e8a2f50a [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" "-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] 66cc2ef091d65c5634cc7f41ea9f2170d677bef6b6c0cdf561d31ea5ecd4e52f [INFO] running `Command { std: "docker" "start" "-a" "66cc2ef091d65c5634cc7f41ea9f2170d677bef6b6c0cdf561d31ea5ecd4e52f", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling libc v0.2.68 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Checking either v1.5.3 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Checking rawpointer v0.2.1 [INFO] [stderr] Compiling ndarray v0.13.0 [INFO] [stderr] Checking ppv-lite86 v0.2.6 [INFO] [stderr] Checking regex-syntax v0.6.17 [INFO] [stderr] Checking termcolor v1.1.0 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking matrixmultiply v0.2.3 [INFO] [stderr] Checking itertools v0.8.2 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Compiling num-complex v0.2.4 [INFO] [stderr] Compiling num-integer v0.1.42 [INFO] [stderr] Checking aho-corasick v0.7.10 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand_pcg v0.2.1 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking num-traits v0.1.43 [INFO] [stderr] Checking regex v1.3.6 [INFO] [stderr] Checking env_logger v0.7.1 [INFO] [stderr] Checking sprs v0.7.1 [INFO] [stderr] Checking minilp v0.2.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/ordering.rs:490:17 [INFO] [stdout] | [INFO] [stdout] 490 | let mut cur_step = dfs_stack.last_mut().unwrap(); [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `row2col` and `block_cols` are never read [INFO] [stdout] --> src/ordering.rs:547:9 [INFO] [stdout] | [INFO] [stdout] 545 | pub struct BlockDiagForm { [INFO] [stdout] | ------------- fields in this struct [INFO] [stdout] 546 | /// Row permutation: for each original row its new row number so that diag is nonzero. [INFO] [stdout] 547 | pub row2col: Vec, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 548 | /// For each block its set of columns (the order of blocks is lower block triangular) [INFO] [stdout] 549 | pub block_cols: Vec>, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `BlockDiagForm` has derived impls for the traits `Debug` and `Clone`, 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: variable does not need to be mutable [INFO] [stdout] --> src/ordering.rs:490:17 [INFO] [stdout] | [INFO] [stdout] 490 | let mut cur_step = dfs_stack.last_mut().unwrap(); [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.04s [INFO] running `Command { std: "docker" "inspect" "66cc2ef091d65c5634cc7f41ea9f2170d677bef6b6c0cdf561d31ea5ecd4e52f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "66cc2ef091d65c5634cc7f41ea9f2170d677bef6b6c0cdf561d31ea5ecd4e52f", kill_on_drop: false }` [INFO] [stdout] 66cc2ef091d65c5634cc7f41ea9f2170d677bef6b6c0cdf561d31ea5ecd4e52f