[INFO] fetching crate taschenrechner 0.2.5...
[INFO] checking taschenrechner-0.2.5 against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] extracting crate taschenrechner 0.2.5 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate taschenrechner 0.2.5 on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate taschenrechner 0.2.5
[INFO] finished tweaking crates.io crate taschenrechner 0.2.5
[INFO] tweaked toml for crates.io crate taschenrechner 0.2.5 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate taschenrechner 0.2.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 060483851d272f859048bd71fc6052c4d70ce7d6b038103ab82227dc0a2ba175
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "060483851d272f859048bd71fc6052c4d70ce7d6b038103ab82227dc0a2ba175", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "060483851d272f859048bd71fc6052c4d70ce7d6b038103ab82227dc0a2ba175", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "060483851d272f859048bd71fc6052c4d70ce7d6b038103ab82227dc0a2ba175", kill_on_drop: false }`
[INFO] [stdout] 060483851d272f859048bd71fc6052c4d70ce7d6b038103ab82227dc0a2ba175
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] de556d93c29fe9e50e2a6b42842fdcc9e9927d052cc83005f9bb7be5519c012c
[INFO] running `Command { std: "docker" "start" "-a" "de556d93c29fe9e50e2a6b42842fdcc9e9927d052cc83005f9bb7be5519c012c", kill_on_drop: false }`
[INFO] [stderr]     Checking taschenrechner v0.2.5 (/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: unused variable: `at`
[INFO] [stdout]   --> src/cli/display.rs:34:36
[INFO] [stdout]    |
[INFO] [stdout] 34 |             LexerErr::Panic { msg, at } => {
[INFO] [stdout]    |                                    ^^ help: try ignoring the field: `at: _`
[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: unused variable: `at`
[INFO] [stdout]   --> src/cli/display.rs:34:36
[INFO] [stdout]    |
[INFO] [stdout] 34 |             LexerErr::Panic { msg, at } => {
[INFO] [stdout]    |                                    ^^ help: try ignoring the field: `at: _`
[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: 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: 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: 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: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "de556d93c29fe9e50e2a6b42842fdcc9e9927d052cc83005f9bb7be5519c012c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de556d93c29fe9e50e2a6b42842fdcc9e9927d052cc83005f9bb7be5519c012c", kill_on_drop: false }`
[INFO] [stdout] de556d93c29fe9e50e2a6b42842fdcc9e9927d052cc83005f9bb7be5519c012c