[INFO] fetching crate operations 0.1.2...
[INFO] checking operations-0.1.2 against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] extracting crate operations 0.1.2 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate operations 0.1.2
[INFO] finished tweaking crates.io crate operations 0.1.2
[INFO] tweaked toml for crates.io crate operations 0.1.2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate operations 0.1.2 on toolchain 93086cfebfccb79083c59d0d3b2052944bba643c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 21 packages to latest compatible versions
[INFO] [stderr]       Adding nalgebra v0.32.6 (available: v0.35.0)
[INFO] [stderr]       Adding ndarray v0.15.6 (available: v0.17.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ed160fbb5b2cae64b23f6e0dfa7bd36b5878a8bc0a9205b82fe9b9b17e36b2f
[INFO] running `Command { std: "docker" "start" "-a" "1ed160fbb5b2cae64b23f6e0dfa7bd36b5878a8bc0a9205b82fe9b9b17e36b2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ed160fbb5b2cae64b23f6e0dfa7bd36b5878a8bc0a9205b82fe9b9b17e36b2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ed160fbb5b2cae64b23f6e0dfa7bd36b5878a8bc0a9205b82fe9b9b17e36b2f", kill_on_drop: false }`
[INFO] [stdout] 1ed160fbb5b2cae64b23f6e0dfa7bd36b5878a8bc0a9205b82fe9b9b17e36b2f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a3b2ccedb06bdcda08684cc8a5f678a42d7f3ae9bdb35010bbcec806fdc455b
[INFO] running `Command { std: "docker" "start" "-a" "6a3b2ccedb06bdcda08684cc8a5f678a42d7f3ae9bdb35010bbcec806fdc455b", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling matrixmultiply v0.3.10
[INFO] [stderr]     Checking safe_arch v0.7.4
[INFO] [stderr]     Checking typenum v1.20.1
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]     Checking wide v0.7.33
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]     Checking simba v0.8.1
[INFO] [stderr]    Compiling nalgebra-macros v0.2.2
[INFO] [stderr]     Checking nalgebra v0.32.6
[INFO] [stderr]     Checking operations v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lint `illegal_floating_point_literal_pattern` has been removed: no longer a warning, float patterns behave the same as `==`
[INFO] [stdout]  --> src/lib.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![allow(illegal_floating_point_literal_pattern)]
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `illegal_floating_point_literal_pattern` has been removed: no longer a warning, float patterns behave the same as `==`
[INFO] [stdout]  --> src/lib.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![allow(illegal_floating_point_literal_pattern)]
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `Equation` is never constructed
[INFO] [stdout]   --> src/math.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub struct Equation {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `EquationSolver` is never used
[INFO] [stdout]   --> src/math.rs:46:18
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub(crate) trait EquationSolver {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `operations` (lib) due to 1 previous error; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: struct `Equation` is never constructed
[INFO] [stdout]   --> src/math.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub struct Equation {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `EquationSolver` is never used
[INFO] [stdout]   --> src/math.rs:46:18
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub(crate) trait EquationSolver {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `operations` (lib test) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "6a3b2ccedb06bdcda08684cc8a5f678a42d7f3ae9bdb35010bbcec806fdc455b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a3b2ccedb06bdcda08684cc8a5f678a42d7f3ae9bdb35010bbcec806fdc455b", kill_on_drop: false }`
[INFO] [stdout] 6a3b2ccedb06bdcda08684cc8a5f678a42d7f3ae9bdb35010bbcec806fdc455b
