[INFO] cloning repository https://github.com/athorwall/parser-combinators
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/athorwall/parser-combinators" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fathorwall%2Fparser-combinators", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fathorwall%2Fparser-combinators'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e9dc572158cc0e1493cb8b3c0637a4d8d7013b8b
[INFO] testing athorwall/parser-combinators against beta-2020-10-09 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fathorwall%2Fparser-combinators" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/athorwall/parser-combinators on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/athorwall/parser-combinators
[INFO] finished tweaking git repo https://github.com/athorwall/parser-combinators
[INFO] tweaked toml for git repo https://github.com/athorwall/parser-combinators written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/athorwall/parser-combinators already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de8aa90a4f9e8113ca5d01c5a2da4ab2723435bf29040c000fe7baace63ab203
[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" "de8aa90a4f9e8113ca5d01c5a2da4ab2723435bf29040c000fe7baace63ab203", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de8aa90a4f9e8113ca5d01c5a2da4ab2723435bf29040c000fe7baace63ab203", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de8aa90a4f9e8113ca5d01c5a2da4ab2723435bf29040c000fe7baace63ab203", kill_on_drop: false }`
[INFO] [stdout] de8aa90a4f9e8113ca5d01c5a2da4ab2723435bf29040c000fe7baace63ab203
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 51fc61a5ffb7d864bd447f9ebed648fb8cf3edace75bb368702ab97aecc7b2f5
[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" "51fc61a5ffb7d864bd447f9ebed648fb8cf3edace75bb368702ab97aecc7b2f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling parser-combinators v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/parser.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     f: Box<Fn(&String) -> Vec<(T, String)> + 'a>,
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&String) -> Vec<(T, String)> + 'a`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser.rs:24:35
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn map<U>(self, func: Box<Fn(&T) -> U>) -> Parser<'a, U> where T: 'a, U: 'a {
[INFO] [stdout]    |                                   ^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&T) -> U`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser.rs:90:54
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn bind<'b, U, V>(p1: Parser<'b, U>, p2: Box<Fn(U) -> Parser<'b, V>>) -> Parser<'b, V>
[INFO] [stdout]    |                                                      ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(U) -> Parser<'b, V>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/parser.rs:42:26
[INFO] [stdout]    |
[INFO] [stdout] 42 |                     Some(value) => {
[INFO] [stdout]    |                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_input`
[INFO] [stdout]   --> src/parser.rs:43:29
[INFO] [stdout]    |
[INFO] [stdout] 43 |                         let mut new_input = input.clone();
[INFO] [stdout]    |                             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/parser.rs:43:29
[INFO] [stdout]    |
[INFO] [stdout] 43 |                         let mut new_input = input.clone();
[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: struct is never constructed: `Parser`
[INFO] [stdout]  --> src/parser.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Parser<'a, T> {
[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: `parse`
[INFO] [stdout]  --> src/parser.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn parse(&self, input: &String) -> Result<T, String> {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `map`
[INFO] [stdout]   --> src/parser.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn map<U>(self, func: Box<Fn(&T) -> U>) -> Parser<'a, U> where T: 'a, U: 'a {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `one`
[INFO] [stdout]   --> src/parser.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn one(t: char) -> Parser<'a, char> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `combine`
[INFO] [stdout]   --> src/parser.rs:62:12
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub fn combine<'b, U>(p1: Parser<'b, U>, p2: Parser<'b, U>) -> Parser<'b, U>
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `option`
[INFO] [stdout]   --> src/parser.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 75 |     pub fn option<'b, U>(p1: Parser<'b, U>, p2: Parser<'b, U>) -> Parser<'b, U>
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `bind`
[INFO] [stdout]   --> src/parser.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn bind<'b, U, V>(p1: Parser<'b, U>, p2: Box<Fn(U) -> Parser<'b, V>>) -> Parser<'b, V>
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "51fc61a5ffb7d864bd447f9ebed648fb8cf3edace75bb368702ab97aecc7b2f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51fc61a5ffb7d864bd447f9ebed648fb8cf3edace75bb368702ab97aecc7b2f5", kill_on_drop: false }`
[INFO] [stdout] 51fc61a5ffb7d864bd447f9ebed648fb8cf3edace75bb368702ab97aecc7b2f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7e36f710495208382af6a8fbb217e25e450e52780b62619a23d2cdb02c7472a
[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" "c7e36f710495208382af6a8fbb217e25e450e52780b62619a23d2cdb02c7472a", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/parser.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     f: Box<Fn(&String) -> Vec<(T, String)> + 'a>,
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&String) -> Vec<(T, String)> + 'a`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling parser-combinators v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser.rs:24:35
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn map<U>(self, func: Box<Fn(&T) -> U>) -> Parser<'a, U> where T: 'a, U: 'a {
[INFO] [stdout]    |                                   ^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&T) -> U`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser.rs:90:54
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn bind<'b, U, V>(p1: Parser<'b, U>, p2: Box<Fn(U) -> Parser<'b, V>>) -> Parser<'b, V>
[INFO] [stdout]    |                                                      ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(U) -> Parser<'b, V>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/parser.rs:42:26
[INFO] [stdout]    |
[INFO] [stdout] 42 |                     Some(value) => {
[INFO] [stdout]    |                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_input`
[INFO] [stdout]   --> src/parser.rs:43:29
[INFO] [stdout]    |
[INFO] [stdout] 43 |                         let mut new_input = input.clone();
[INFO] [stdout]    |                             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/parser.rs:43:29
[INFO] [stdout]    |
[INFO] [stdout] 43 |                         let mut new_input = input.clone();
[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: struct is never constructed: `Parser`
[INFO] [stdout]  --> src/parser.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Parser<'a, T> {
[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: `parse`
[INFO] [stdout]  --> src/parser.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn parse(&self, input: &String) -> Result<T, String> {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `map`
[INFO] [stdout]   --> src/parser.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn map<U>(self, func: Box<Fn(&T) -> U>) -> Parser<'a, U> where T: 'a, U: 'a {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `one`
[INFO] [stdout]   --> src/parser.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn one(t: char) -> Parser<'a, char> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `combine`
[INFO] [stdout]   --> src/parser.rs:62:12
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub fn combine<'b, U>(p1: Parser<'b, U>, p2: Parser<'b, U>) -> Parser<'b, U>
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `option`
[INFO] [stdout]   --> src/parser.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 75 |     pub fn option<'b, U>(p1: Parser<'b, U>, p2: Parser<'b, U>) -> Parser<'b, U>
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `bind`
[INFO] [stdout]   --> src/parser.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn bind<'b, U, V>(p1: Parser<'b, U>, p2: Box<Fn(U) -> Parser<'b, V>>) -> Parser<'b, V>
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/parser.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     f: Box<Fn(&String) -> Vec<(T, String)> + 'a>,
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&String) -> Vec<(T, String)> + 'a`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser.rs:24:35
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn map<U>(self, func: Box<Fn(&T) -> U>) -> Parser<'a, U> where T: 'a, U: 'a {
[INFO] [stdout]    |                                   ^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&T) -> U`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser.rs:90:54
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn bind<'b, U, V>(p1: Parser<'b, U>, p2: Box<Fn(U) -> Parser<'b, V>>) -> Parser<'b, V>
[INFO] [stdout]    |                                                      ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(U) -> Parser<'b, V>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/parser.rs:42:26
[INFO] [stdout]    |
[INFO] [stdout] 42 |                     Some(value) => {
[INFO] [stdout]    |                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_input`
[INFO] [stdout]   --> src/parser.rs:43:29
[INFO] [stdout]    |
[INFO] [stdout] 43 |                         let mut new_input = input.clone();
[INFO] [stdout]    |                             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/parser.rs:43:29
[INFO] [stdout]    |
[INFO] [stdout] 43 |                         let mut new_input = input.clone();
[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/parser.rs:153:21
[INFO] [stdout]     |
[INFO] [stdout] 153 |                 let mut s = a.to_string();
[INFO] [stdout]     |                     ----^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.59s
[INFO] running `Command { std: "docker" "inspect" "c7e36f710495208382af6a8fbb217e25e450e52780b62619a23d2cdb02c7472a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7e36f710495208382af6a8fbb217e25e450e52780b62619a23d2cdb02c7472a", kill_on_drop: false }`
[INFO] [stdout] c7e36f710495208382af6a8fbb217e25e450e52780b62619a23d2cdb02c7472a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] daee6b0de694ce546db595c94fca18152fcdab205be95d06c7f53d036d1038bc
[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" "daee6b0de694ce546db595c94fca18152fcdab205be95d06c7f53d036d1038bc", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/parser.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 |     f: Box<Fn(&String) -> Vec<(T, String)> + 'a>,
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&String) -> Vec<(T, String)> + 'a`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:24:35
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn map<U>(self, func: Box<Fn(&T) -> U>) -> Parser<'a, U> where T: 'a, U: 'a {
[INFO] [stderr]    |                                   ^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&T) -> U`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:90:54
[INFO] [stderr]    |
[INFO] [stderr] 90 |     pub fn bind<'b, U, V>(p1: Parser<'b, U>, p2: Box<Fn(U) -> Parser<'b, V>>) -> Parser<'b, V>
[INFO] [stderr]    |                                                      ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(U) -> Parser<'b, V>`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/parser.rs:42:26
[INFO] [stderr]    |
[INFO] [stderr] 42 |                     Some(value) => {
[INFO] [stderr]    |                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `new_input`
[INFO] [stderr]   --> src/parser.rs:43:29
[INFO] [stderr]    |
[INFO] [stderr] 43 |                         let mut new_input = input.clone();
[INFO] [stderr]    |                             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_input`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/parser.rs:43:29
[INFO] [stderr]    |
[INFO] [stderr] 43 |                         let mut new_input = input.clone();
[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: struct is never constructed: `Parser`
[INFO] [stderr]  --> src/parser.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | struct Parser<'a, T> {
[INFO] [stderr]   |        ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `parse`
[INFO] [stderr]  --> src/parser.rs:8:12
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub fn parse(&self, input: &String) -> Result<T, String> {
[INFO] [stderr]   |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `map`
[INFO] [stderr]   --> src/parser.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn map<U>(self, func: Box<Fn(&T) -> U>) -> Parser<'a, U> where T: 'a, U: 'a {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `one`
[INFO] [stderr]   --> src/parser.rs:38:12
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn one(t: char) -> Parser<'a, char> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `combine`
[INFO] [stderr]   --> src/parser.rs:62:12
[INFO] [stderr]    |
[INFO] [stderr] 62 |     pub fn combine<'b, U>(p1: Parser<'b, U>, p2: Parser<'b, U>) -> Parser<'b, U>
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `option`
[INFO] [stderr]   --> src/parser.rs:75:12
[INFO] [stderr]    |
[INFO] [stderr] 75 |     pub fn option<'b, U>(p1: Parser<'b, U>, p2: Parser<'b, U>) -> Parser<'b, U>
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `bind`
[INFO] [stderr]   --> src/parser.rs:90:12
[INFO] [stderr]    |
[INFO] [stderr] 90 |     pub fn bind<'b, U, V>(p1: Parser<'b, U>, p2: Box<Fn(U) -> Parser<'b, V>>) -> Parser<'b, V>
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 13 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/parser.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 |     f: Box<Fn(&String) -> Vec<(T, String)> + 'a>,
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&String) -> Vec<(T, String)> + 'a`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:24:35
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn map<U>(self, func: Box<Fn(&T) -> U>) -> Parser<'a, U> where T: 'a, U: 'a {
[INFO] [stderr]    |                                   ^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&T) -> U`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:90:54
[INFO] [stderr]    |
[INFO] [stderr] 90 |     pub fn bind<'b, U, V>(p1: Parser<'b, U>, p2: Box<Fn(U) -> Parser<'b, V>>) -> Parser<'b, V>
[INFO] [stderr]    |                                                      ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(U) -> Parser<'b, V>`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/parser.rs:42:26
[INFO] [stderr]    |
[INFO] [stderr] 42 |                     Some(value) => {
[INFO] [stderr]    |                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `new_input`
[INFO] [stderr]   --> src/parser.rs:43:29
[INFO] [stderr]    |
[INFO] [stderr] 43 |                         let mut new_input = input.clone();
[INFO] [stderr]    |                             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_input`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/parser.rs:43:29
[INFO] [stderr]    |
[INFO] [stderr] 43 |                         let mut new_input = input.clone();
[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: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:153:21
[INFO] [stderr]     |
[INFO] [stderr] 153 |                 let mut s = a.to_string();
[INFO] [stderr]     |                     ----^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/parser_combinators-3a68e5d7e2ac19af
[INFO] [stdout] running 5 tests
[INFO] [stdout] test parser::tests::test_combine ... ok
[INFO] [stdout] test parser::tests::test_bind ... ok
[INFO] [stdout] test parser::tests::test_option ... ok
[INFO] [stdout] test parser::tests::test_map ... ok
[INFO] [stdout] test parser::tests::test_one ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests parser-combinators
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "daee6b0de694ce546db595c94fca18152fcdab205be95d06c7f53d036d1038bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "daee6b0de694ce546db595c94fca18152fcdab205be95d06c7f53d036d1038bc", kill_on_drop: false }`
[INFO] [stdout] daee6b0de694ce546db595c94fca18152fcdab205be95d06c7f53d036d1038bc
