[INFO] fetching crate doctor-syn 0.1.0...
[INFO] testing doctor-syn-0.1.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate doctor-syn 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate doctor-syn 0.1.0
[INFO] finished tweaking crates.io crate doctor-syn 0.1.0
[INFO] tweaked toml for crates.io crate doctor-syn 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate doctor-syn 0.1.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate doctor-syn 0.1.0 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5317db3bab4f2055c200dad9ebc8b24175d9b91ee0c06c32697769fcf399f494
[INFO] running `Command { std: "docker" "start" "-a" "5317db3bab4f2055c200dad9ebc8b24175d9b91ee0c06c32697769fcf399f494", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5317db3bab4f2055c200dad9ebc8b24175d9b91ee0c06c32697769fcf399f494", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5317db3bab4f2055c200dad9ebc8b24175d9b91ee0c06c32697769fcf399f494", kill_on_drop: false }`
[INFO] [stdout] 5317db3bab4f2055c200dad9ebc8b24175d9b91ee0c06c32697769fcf399f494
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5bdf2a49309978f44226be857761c2d1f818e4ef67aa4a4ff90c71668194cc6c
[INFO] running `Command { std: "docker" "start" "-a" "5bdf2a49309978f44226be857761c2d1f818e4ef67aa4a4ff90c71668194cc6c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling doctor-syn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `variable` is never read
[INFO] [stdout]   --> src/transformation/collect.rs:11:16
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Collect {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 11 |     pub(crate) variable: Name,
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Collect` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sin` is never used
[INFO] [stdout]  --> src/bin/libmgen.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn sin(x: f32) -> f32 {
[INFO] [stdout]   |    ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cos` is never used
[INFO] [stdout]   --> src/bin/libmgen.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn cos(x: f32) -> f32 {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `exp` is never used
[INFO] [stdout]   --> src/bin/libmgen.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn exp(x: f32) -> f32 {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ln` is never used
[INFO] [stdout]   --> src/bin/libmgen.rs:44:4
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn ln(x: f32) -> f32 {
[INFO] [stdout]    |    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_sin` is never used
[INFO] [stdout]    --> src/bin/libmgen.rs:141:4
[INFO] [stdout]     |
[INFO] [stdout] 141 | fn test_sin() {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_cos` is never used
[INFO] [stdout]    --> src/bin/libmgen.rs:155:4
[INFO] [stdout]     |
[INFO] [stdout] 155 | fn test_cos() {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_exp` is never used
[INFO] [stdout]    --> src/bin/libmgen.rs:169:4
[INFO] [stdout]     |
[INFO] [stdout] 169 | fn test_exp() {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_ln` is never used
[INFO] [stdout]    --> src/bin/libmgen.rs:183:4
[INFO] [stdout]     |
[INFO] [stdout] 183 | fn test_ln() {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.87s
[INFO] running `Command { std: "docker" "inspect" "5bdf2a49309978f44226be857761c2d1f818e4ef67aa4a4ff90c71668194cc6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bdf2a49309978f44226be857761c2d1f818e4ef67aa4a4ff90c71668194cc6c", kill_on_drop: false }`
[INFO] [stdout] 5bdf2a49309978f44226be857761c2d1f818e4ef67aa4a4ff90c71668194cc6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e62064f001dff684a42ba1aca779a51537c6cae33192cc6f350ce1ac69684a6d
[INFO] running `Command { std: "docker" "start" "-a" "e62064f001dff684a42ba1aca779a51537c6cae33192cc6f350ce1ac69684a6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling doctor-syn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `variable` is never read
[INFO] [stdout]   --> src/transformation/collect.rs:11:16
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Collect {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 11 |     pub(crate) variable: Name,
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Collect` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sin` is never used
[INFO] [stdout]  --> src/bin/libmgen.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn sin(x: f32) -> f32 {
[INFO] [stdout]   |    ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cos` is never used
[INFO] [stdout]   --> src/bin/libmgen.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn cos(x: f32) -> f32 {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `exp` is never used
[INFO] [stdout]   --> src/bin/libmgen.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn exp(x: f32) -> f32 {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ln` is never used
[INFO] [stdout]   --> src/bin/libmgen.rs:44:4
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn ln(x: f32) -> f32 {
[INFO] [stdout]    |    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_sin` is never used
[INFO] [stdout]    --> src/bin/libmgen.rs:141:4
[INFO] [stdout]     |
[INFO] [stdout] 141 | fn test_sin() {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_cos` is never used
[INFO] [stdout]    --> src/bin/libmgen.rs:155:4
[INFO] [stdout]     |
[INFO] [stdout] 155 | fn test_cos() {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_exp` is never used
[INFO] [stdout]    --> src/bin/libmgen.rs:169:4
[INFO] [stdout]     |
[INFO] [stdout] 169 | fn test_exp() {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_ln` is never used
[INFO] [stdout]    --> src/bin/libmgen.rs:183:4
[INFO] [stdout]     |
[INFO] [stdout] 183 | fn test_ln() {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `variable` is never read
[INFO] [stdout]   --> src/transformation/collect.rs:11:16
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Collect {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 11 |     pub(crate) variable: Name,
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Collect` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "e62064f001dff684a42ba1aca779a51537c6cae33192cc6f350ce1ac69684a6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e62064f001dff684a42ba1aca779a51537c6cae33192cc6f350ce1ac69684a6d", kill_on_drop: false }`
[INFO] [stdout] e62064f001dff684a42ba1aca779a51537c6cae33192cc6f350ce1ac69684a6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6a14186e2767fc3aefa2b34c3a0a51b816b844c1bc34667bd5e9bb5c84c73496
[INFO] running `Command { std: "docker" "start" "-a" "6a14186e2767fc3aefa2b34c3a0a51b816b844c1bc34667bd5e9bb5c84c73496", kill_on_drop: false }`
[INFO] [stderr] warning: field `variable` is never read
[INFO] [stderr]   --> src/transformation/collect.rs:11:16
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub struct Collect {
[INFO] [stderr]    |            ------- field in this struct
[INFO] [stderr] 11 |     pub(crate) variable: Name,
[INFO] [stderr]    |                ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Collect` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `doctor-syn` (lib) generated 1 warning
[INFO] [stderr] warning: `doctor-syn` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr] warning: function `sin` is never used
[INFO] [stderr]  --> src/bin/libmgen.rs:6:4
[INFO] [stderr]   |
[INFO] [stderr] 6 | fn sin(x: f32) -> f32 {
[INFO] [stderr]   |    ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `cos` is never used
[INFO] [stderr]   --> src/bin/libmgen.rs:18:4
[INFO] [stderr]    |
[INFO] [stderr] 18 | fn cos(x: f32) -> f32 {
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `exp` is never used
[INFO] [stderr]   --> src/bin/libmgen.rs:30:4
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn exp(x: f32) -> f32 {
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `ln` is never used
[INFO] [stderr]   --> src/bin/libmgen.rs:44:4
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn ln(x: f32) -> f32 {
[INFO] [stderr]    |    ^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_sin` is never used
[INFO] [stderr]    --> src/bin/libmgen.rs:141:4
[INFO] [stderr]     |
[INFO] [stderr] 141 | fn test_sin() {
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_cos` is never used
[INFO] [stderr]    --> src/bin/libmgen.rs:155:4
[INFO] [stderr]     |
[INFO] [stderr] 155 | fn test_cos() {
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_exp` is never used
[INFO] [stderr]    --> src/bin/libmgen.rs:169:4
[INFO] [stderr]     |
[INFO] [stderr] 169 | fn test_exp() {
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_ln` is never used
[INFO] [stderr]    --> src/bin/libmgen.rs:183:4
[INFO] [stderr]     |
[INFO] [stderr] 183 | fn test_ln() {
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `doctor-syn` (bin "libmgen" test) generated 8 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/doctor_syn-d2dafc45e38fdce8)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test transformation::collect::collect ... ok
[INFO] [stdout] test variablelist::test_vars ... ok
[INFO] [stdout] test transformation::paren::unary ... ok
[INFO] [stdout] test polynomial::test::test_poly ... ok
[INFO] [stdout] test transformation::expand::expand ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/libmgen.rs (/opt/rustwide/target/debug/deps/libmgen-b53c4a1b12450395)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests doctor_syn
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/expression.rs - expression::Expression::expand (line 220) ... ok
[INFO] [stdout] test src/expression.rs - expression::Expression::approx (line 202) ... FAILED
[INFO] [stdout] test src/expression.rs - expression::Expression::eval (line 185) ... ok
[INFO] [stdout] test src/expression.rs - expression::Expression::collect_terms (line 249) ... ok
[INFO] [stdout] test src/expression.rs - expression::Expression::paren (line 262) ... ok
[INFO] [stdout] test src/expression.rs - expression::Expression::is_lit (line 163) ... ok
[INFO] [stdout] test src/expression.rs - expression::Expression::use_suffix (line 277) ... ok
[INFO] [stdout] test src/expression.rs - expression::Expression::subst (line 175) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/expression.rs - expression::Expression::approx (line 202) stdout ----
[INFO] [stdout] error: no rules expected `,`
[INFO] [stdout]    --> src/expression.rs:206:92
[INFO] [stdout]     |
[INFO] [stdout]   7 | assert_eq!(expr!(x).approx(2, 0.0, 1.0, name!(x)).unwrap(), expr!(1f64 . mul_add (x , 0f64), Parity::Neither));
[INFO] [stdout]     |                                                                                            ^ no rules expected this token in macro call
[INFO] [stdout]     |
[INFO] [stdout] note: while trying to match meta-variable `$e:expr`
[INFO] [stdout]    --> /opt/rustwide/workdir/src/expression.rs:138:6
[INFO] [stdout]     |
[INFO] [stdout] 138 |     ($e : expr) => {{
[INFO] [stdout]     |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/expression.rs - expression::Expression::approx (line 202)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 7 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.57s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "6a14186e2767fc3aefa2b34c3a0a51b816b844c1bc34667bd5e9bb5c84c73496", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a14186e2767fc3aefa2b34c3a0a51b816b844c1bc34667bd5e9bb5c84c73496", kill_on_drop: false }`
[INFO] [stdout] 6a14186e2767fc3aefa2b34c3a0a51b816b844c1bc34667bd5e9bb5c84c73496