[INFO] cloning repository https://github.com/m4dh0rs3/cas
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/m4dh0rs3/cas" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fm4dh0rs3%2Fcas", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fm4dh0rs3%2Fcas'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 848b2b6f9dbd5b46461436d9feab0da0b79eb3e3
[INFO] testing m4dh0rs3/cas against beta-2021-08-01 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fm4dh0rs3%2Fcas" "/workspace/builds/worker-104/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-104/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/m4dh0rs3/cas on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/m4dh0rs3/cas
[INFO] finished tweaking git repo https://github.com/m4dh0rs3/cas
[INFO] tweaked toml for git repo https://github.com/m4dh0rs3/cas written to /workspace/builds/worker-104/source/Cargo.toml
[INFO] crate git repo https://github.com/m4dh0rs3/cas already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9999f73c5030c2002a49f6890195d82502c908400ffdd0c5a1f1576b7c247b7e
[INFO] running `Command { std: "docker" "start" "-a" "9999f73c5030c2002a49f6890195d82502c908400ffdd0c5a1f1576b7c247b7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9999f73c5030c2002a49f6890195d82502c908400ffdd0c5a1f1576b7c247b7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9999f73c5030c2002a49f6890195d82502c908400ffdd0c5a1f1576b7c247b7e", kill_on_drop: false }`
[INFO] [stdout] 9999f73c5030c2002a49f6890195d82502c908400ffdd0c5a1f1576b7c247b7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 292b4cb9ee9d0a757f8f1c59ed678e2b3b71796cb25d33235f8956554822b2ad
[INFO] running `Command { std: "docker" "start" "-a" "292b4cb9ee9d0a757f8f1c59ed678e2b3b71796cb25d33235f8956554822b2ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling taschenrechner v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/cas/parser.rs:68:13
[INFO] [stdout]    |
[INFO] [stdout] 68 |             token => Err(ParserErr::Panic(format!("unexpected token `{}`", token))),
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/cas/parser.rs:83:21
[INFO] [stdout]    |
[INFO] [stdout] 83 |                     _ => Err(ParserErr::Panic(format!(
[INFO] [stdout]    |                     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `at`
[INFO] [stdout]   --> src/cli/display.rs:20:36
[INFO] [stdout]    |
[INFO] [stdout] 20 |             LexerErr::Panic { msg, at } => {
[INFO] [stdout]    |                                    ^^ help: try ignoring the field: `at: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/cas/expr/atom/number/ops.rs:79:24
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub(crate) fn fact(mut self) -> Number {
[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: associated function is never used: `exp`
[INFO] [stdout]   --> src/cas/expr/atom/number/ops.rs:75:19
[INFO] [stdout]    |
[INFO] [stdout] 75 |     pub(crate) fn exp(self) -> Number {
[INFO] [stdout]    |                   ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `angle`
[INFO] [stdout]    --> src/cas/expr/atom/number/ops.rs:177:19
[INFO] [stdout]     |
[INFO] [stdout] 177 |     pub(crate) fn angle(self, rhs: Number) -> Number {
[INFO] [stdout]     |                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_hex`
[INFO] [stdout]   --> src/cas/expr/atom/number.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 |     fn parse_hex(lexer: &mut Lexer) -> Result<Number, LexerErr> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_bin`
[INFO] [stdout]   --> src/cas/expr/atom/number.rs:79:8
[INFO] [stdout]    |
[INFO] [stdout] 79 |     fn parse_bin(lexer: &mut Lexer) -> Result<Number, LexerErr> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_hex_digit`
[INFO] [stdout]    --> src/cas/expr/atom/number.rs:101:4
[INFO] [stdout]     |
[INFO] [stdout] 101 | fn is_hex_digit(pot: &char) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_bin_digit`
[INFO] [stdout]    --> src/cas/expr/atom/number.rs:105:4
[INFO] [stdout]     |
[INFO] [stdout] 105 | fn is_bin_digit(pot: &char) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `order`
[INFO] [stdout]    --> src/cas/expr.rs:282:8
[INFO] [stdout]     |
[INFO] [stdout] 282 |     fn order(&mut self) {}
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `simplify`
[INFO] [stdout]    --> src/cas/expr.rs:285:8
[INFO] [stdout]     |
[INFO] [stdout] 285 |     fn simplify(&mut self) {}
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `HEX_DIGITS`
[INFO] [stdout]   --> src/cas/lexer.rs:32:1
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub(crate) const HEX_DIGITS: &'static str = "0123456789ABCDEF";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BIN_DIGITS`
[INFO] [stdout]   --> src/cas/lexer.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub(crate) const BIN_DIGITS: &'static str = "01";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/cas/parser.rs:96:17
[INFO] [stdout]    |
[INFO] [stdout] 96 |                 lexer.token();
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/cas/parser.rs:108:21
[INFO] [stdout]     |
[INFO] [stdout] 108 |                     lexer.token();
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.93s
[INFO] running `Command { std: "docker" "inspect" "292b4cb9ee9d0a757f8f1c59ed678e2b3b71796cb25d33235f8956554822b2ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "292b4cb9ee9d0a757f8f1c59ed678e2b3b71796cb25d33235f8956554822b2ad", kill_on_drop: false }`
[INFO] [stdout] 292b4cb9ee9d0a757f8f1c59ed678e2b3b71796cb25d33235f8956554822b2ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e1f9e35ebc0277f202a39df659ef3b6207fea3c8702c281c899686769448796
[INFO] running `Command { std: "docker" "start" "-a" "1e1f9e35ebc0277f202a39df659ef3b6207fea3c8702c281c899686769448796", kill_on_drop: false }`
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/cas/parser.rs:68:13
[INFO] [stdout]    |
[INFO] [stdout] 68 |             token => Err(ParserErr::Panic(format!("unexpected token `{}`", token))),
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling taschenrechner v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/cas/parser.rs:83:21
[INFO] [stdout]    |
[INFO] [stdout] 83 |                     _ => Err(ParserErr::Panic(format!(
[INFO] [stdout]    |                     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `at`
[INFO] [stdout]   --> src/cli/display.rs:20:36
[INFO] [stdout]    |
[INFO] [stdout] 20 |             LexerErr::Panic { msg, at } => {
[INFO] [stdout]    |                                    ^^ help: try ignoring the field: `at: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/cas/expr/atom/number/ops.rs:79:24
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub(crate) fn fact(mut self) -> Number {
[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: associated function is never used: `exp`
[INFO] [stdout]   --> src/cas/expr/atom/number/ops.rs:75:19
[INFO] [stdout]    |
[INFO] [stdout] 75 |     pub(crate) fn exp(self) -> Number {
[INFO] [stdout]    |                   ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `angle`
[INFO] [stdout]    --> src/cas/expr/atom/number/ops.rs:177:19
[INFO] [stdout]     |
[INFO] [stdout] 177 |     pub(crate) fn angle(self, rhs: Number) -> Number {
[INFO] [stdout]     |                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_hex`
[INFO] [stdout]   --> src/cas/expr/atom/number.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 |     fn parse_hex(lexer: &mut Lexer) -> Result<Number, LexerErr> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_bin`
[INFO] [stdout]   --> src/cas/expr/atom/number.rs:79:8
[INFO] [stdout]    |
[INFO] [stdout] 79 |     fn parse_bin(lexer: &mut Lexer) -> Result<Number, LexerErr> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_hex_digit`
[INFO] [stdout]    --> src/cas/expr/atom/number.rs:101:4
[INFO] [stdout]     |
[INFO] [stdout] 101 | fn is_hex_digit(pot: &char) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_bin_digit`
[INFO] [stdout]    --> src/cas/expr/atom/number.rs:105:4
[INFO] [stdout]     |
[INFO] [stdout] 105 | fn is_bin_digit(pot: &char) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `order`
[INFO] [stdout]    --> src/cas/expr.rs:282:8
[INFO] [stdout]     |
[INFO] [stdout] 282 |     fn order(&mut self) {}
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `simplify`
[INFO] [stdout]    --> src/cas/expr.rs:285:8
[INFO] [stdout]     |
[INFO] [stdout] 285 |     fn simplify(&mut self) {}
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `HEX_DIGITS`
[INFO] [stdout]   --> src/cas/lexer.rs:32:1
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub(crate) const HEX_DIGITS: &'static str = "0123456789ABCDEF";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BIN_DIGITS`
[INFO] [stdout]   --> src/cas/lexer.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub(crate) const BIN_DIGITS: &'static str = "01";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/cas/parser.rs:96:17
[INFO] [stdout]    |
[INFO] [stdout] 96 |                 lexer.token();
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/cas/parser.rs:108:21
[INFO] [stdout]     |
[INFO] [stdout] 108 |                     lexer.token();
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/cas/parser.rs:68:13
[INFO] [stdout]    |
[INFO] [stdout] 68 |             token => Err(ParserErr::Panic(format!("unexpected token `{}`", token))),
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/cas/parser.rs:83:21
[INFO] [stdout]    |
[INFO] [stdout] 83 |                     _ => Err(ParserErr::Panic(format!(
[INFO] [stdout]    |                     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `at`
[INFO] [stdout]   --> src/cli/display.rs:20:36
[INFO] [stdout]    |
[INFO] [stdout] 20 |             LexerErr::Panic { msg, at } => {
[INFO] [stdout]    |                                    ^^ help: try ignoring the field: `at: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/cas/expr/atom/number/ops.rs:79:24
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub(crate) fn fact(mut self) -> Number {
[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: associated function is never used: `exp`
[INFO] [stdout]   --> src/cas/expr/atom/number/ops.rs:75:19
[INFO] [stdout]    |
[INFO] [stdout] 75 |     pub(crate) fn exp(self) -> Number {
[INFO] [stdout]    |                   ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `angle`
[INFO] [stdout]    --> src/cas/expr/atom/number/ops.rs:177:19
[INFO] [stdout]     |
[INFO] [stdout] 177 |     pub(crate) fn angle(self, rhs: Number) -> Number {
[INFO] [stdout]     |                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_hex`
[INFO] [stdout]   --> src/cas/expr/atom/number.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 |     fn parse_hex(lexer: &mut Lexer) -> Result<Number, LexerErr> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_bin`
[INFO] [stdout]   --> src/cas/expr/atom/number.rs:79:8
[INFO] [stdout]    |
[INFO] [stdout] 79 |     fn parse_bin(lexer: &mut Lexer) -> Result<Number, LexerErr> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_hex_digit`
[INFO] [stdout]    --> src/cas/expr/atom/number.rs:101:4
[INFO] [stdout]     |
[INFO] [stdout] 101 | fn is_hex_digit(pot: &char) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_bin_digit`
[INFO] [stdout]    --> src/cas/expr/atom/number.rs:105:4
[INFO] [stdout]     |
[INFO] [stdout] 105 | fn is_bin_digit(pot: &char) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `order`
[INFO] [stdout]    --> src/cas/expr.rs:282:8
[INFO] [stdout]     |
[INFO] [stdout] 282 |     fn order(&mut self) {}
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `simplify`
[INFO] [stdout]    --> src/cas/expr.rs:285:8
[INFO] [stdout]     |
[INFO] [stdout] 285 |     fn simplify(&mut self) {}
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `HEX_DIGITS`
[INFO] [stdout]   --> src/cas/lexer.rs:32:1
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub(crate) const HEX_DIGITS: &'static str = "0123456789ABCDEF";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BIN_DIGITS`
[INFO] [stdout]   --> src/cas/lexer.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub(crate) const BIN_DIGITS: &'static str = "01";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/cas/parser.rs:96:17
[INFO] [stdout]    |
[INFO] [stdout] 96 |                 lexer.token();
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/cas/parser.rs:108:21
[INFO] [stdout]     |
[INFO] [stdout] 108 |                     lexer.token();
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "1e1f9e35ebc0277f202a39df659ef3b6207fea3c8702c281c899686769448796", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e1f9e35ebc0277f202a39df659ef3b6207fea3c8702c281c899686769448796", kill_on_drop: false }`
[INFO] [stdout] 1e1f9e35ebc0277f202a39df659ef3b6207fea3c8702c281c899686769448796
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d415893d090c955cbd17127e7bf670bf0ac8282ca1aa8019eb253127d5072494
[INFO] running `Command { std: "docker" "start" "-a" "d415893d090c955cbd17127e7bf670bf0ac8282ca1aa8019eb253127d5072494", kill_on_drop: false }`
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/cas/parser.rs:68:13
[INFO] [stderr]    |
[INFO] [stderr] 68 |             token => Err(ParserErr::Panic(format!("unexpected token `{}`", token))),
[INFO] [stderr]    |             ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/cas/parser.rs:83:21
[INFO] [stderr]    |
[INFO] [stderr] 83 |                     _ => Err(ParserErr::Panic(format!(
[INFO] [stderr]    |                     ^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `at`
[INFO] [stderr]   --> src/cli/display.rs:20:36
[INFO] [stderr]    |
[INFO] [stderr] 20 |             LexerErr::Panic { msg, at } => {
[INFO] [stderr]    |                                    ^^ help: try ignoring the field: `at: _`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/cas/expr/atom/number/ops.rs:79:24
[INFO] [stderr]    |
[INFO] [stderr] 79 |     pub(crate) fn fact(mut self) -> Number {
[INFO] [stderr]    |                        ----^^^^
[INFO] [stderr]    |                        |
[INFO] [stderr]    |                        help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `exp`
[INFO] [stderr]   --> src/cas/expr/atom/number/ops.rs:75:19
[INFO] [stderr]    |
[INFO] [stderr] 75 |     pub(crate) fn exp(self) -> Number {
[INFO] [stderr]    |                   ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `angle`
[INFO] [stderr]    --> src/cas/expr/atom/number/ops.rs:177:19
[INFO] [stderr]     |
[INFO] [stderr] 177 |     pub(crate) fn angle(self, rhs: Number) -> Number {
[INFO] [stderr]     |                   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `parse_hex`
[INFO] [stderr]   --> src/cas/expr/atom/number.rs:62:8
[INFO] [stderr]    |
[INFO] [stderr] 62 |     fn parse_hex(lexer: &mut Lexer) -> Result<Number, LexerErr> {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `parse_bin`
[INFO] [stderr]   --> src/cas/expr/atom/number.rs:79:8
[INFO] [stderr]    |
[INFO] [stderr] 79 |     fn parse_bin(lexer: &mut Lexer) -> Result<Number, LexerErr> {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_hex_digit`
[INFO] [stderr]    --> src/cas/expr/atom/number.rs:101:4
[INFO] [stderr]     |
[INFO] [stderr] 101 | fn is_hex_digit(pot: &char) -> bool {
[INFO] [stderr]     |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_bin_digit`
[INFO] [stderr]    --> src/cas/expr/atom/number.rs:105:4
[INFO] [stderr]     |
[INFO] [stderr] 105 | fn is_bin_digit(pot: &char) -> bool {
[INFO] [stderr]     |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `order`
[INFO] [stderr]    --> src/cas/expr.rs:282:8
[INFO] [stderr]     |
[INFO] [stderr] 282 |     fn order(&mut self) {}
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `simplify`
[INFO] [stderr]    --> src/cas/expr.rs:285:8
[INFO] [stderr]     |
[INFO] [stderr] 285 |     fn simplify(&mut self) {}
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `HEX_DIGITS`
[INFO] [stderr]   --> src/cas/lexer.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub(crate) const HEX_DIGITS: &'static str = "0123456789ABCDEF";
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `BIN_DIGITS`
[INFO] [stderr]   --> src/cas/lexer.rs:33:1
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub(crate) const BIN_DIGITS: &'static str = "01";
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/cas/parser.rs:96:17
[INFO] [stderr]    |
[INFO] [stderr] 96 |                 lexer.token();
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/cas/parser.rs:108:21
[INFO] [stderr]     |
[INFO] [stderr] 108 |                     lexer.token();
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `taschenrechner` (lib) generated 16 warnings
[INFO] [stderr] warning: `taschenrechner` (lib test) generated 16 warnings (16 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/taschenrechner-c6be325b7028371c)
[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 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/taschenrechner-5decc60f0ce2c2ed)
[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 taschenrechner
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 6) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 6) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `cas`
[INFO] [stdout]  --> src/lib.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use cas::prelude::*;
[INFO] [stdout]   |     ^^^ use of undeclared crate or module `cas`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `REPL`
[INFO] [stdout]  --> src/lib.rs:10:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     REPL::start();
[INFO] [stdout]   |     ^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 2 | use taschenrechner::prelude::REPL;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 6)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.41s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "d415893d090c955cbd17127e7bf670bf0ac8282ca1aa8019eb253127d5072494", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d415893d090c955cbd17127e7bf670bf0ac8282ca1aa8019eb253127d5072494", kill_on_drop: false }`
[INFO] [stdout] d415893d090c955cbd17127e7bf670bf0ac8282ca1aa8019eb253127d5072494
