[INFO] updating cached repository https://github.com/MarcoLuglio/Parser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f35dcbc2a59f400147f5b1b234b3f2aeade45ebe
[INFO] testing MarcoLuglio/Parser against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarcoLuglio%2FParser" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MarcoLuglio/Parser on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MarcoLuglio/Parser
[INFO] finished tweaking git repo https://github.com/MarcoLuglio/Parser
[INFO] tweaked toml for git repo https://github.com/MarcoLuglio/Parser written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/MarcoLuglio/Parser already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 025abeed8f331f057253aae7098b526267ad61aeae8c6c62929da5d1e750294a
[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" "025abeed8f331f057253aae7098b526267ad61aeae8c6c62929da5d1e750294a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "025abeed8f331f057253aae7098b526267ad61aeae8c6c62929da5d1e750294a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "025abeed8f331f057253aae7098b526267ad61aeae8c6c62929da5d1e750294a", kill_on_drop: false }`
[INFO] [stdout] 025abeed8f331f057253aae7098b526267ad61aeae8c6c62929da5d1e750294a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d78a94b628bf077a81f475cad3b2f325755bca248268ed10f9cfdba57b5fe7ef
[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" "d78a94b628bf077a81f475cad3b2f325755bca248268ed10f9cfdba57b5fe7ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `character`
[INFO] [stdout]   --> src/parser.rs:25:7
[INFO] [stdout]    |
[INFO] [stdout] 25 |         for character in source.chars() {
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_character`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `source`
[INFO] [stdout]   --> src/token.rs:92:25
[INFO] [stdout]    |
[INFO] [stdout] 92 |     pub fn next(&mut self, source:&str, index:usize) {
[INFO] [stdout]    |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_source`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `match_character`
[INFO] [stdout]    --> src/token.rs:135:27
[INFO] [stdout]     |
[INFO] [stdout] 135 |     fn match_keywords(&self, match_character:char) -> bool {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_match_character`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/parser.rs:68:7
[INFO] [stdout]    |
[INFO] [stdout] 68 |         let mut token_pool = self.token_pool();
[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:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 |             let mut token = &mut token_pool[i];
[INFO] [stdout]    |                 ----^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/parser.rs:85:7
[INFO] [stdout]    |
[INFO] [stdout] 85 |         let mut token_pool = self.token_pool();
[INFO] [stdout]    |             ----^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/parser.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |                 let mut token = &token_pool[i];
[INFO] [stdout]    |                     ----^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/token.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn new(token_type:String) -> Token {
[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: `reset`
[INFO] [stdout]    --> src/token.rs:127:5
[INFO] [stdout]     |
[INFO] [stdout] 127 |     fn reset(&mut self) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reset_keywords`
[INFO] [stdout]    --> src/token.rs:178:5
[INFO] [stdout]     |
[INFO] [stdout] 178 |     fn reset_keywords(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `Command { std: "docker" "inspect" "d78a94b628bf077a81f475cad3b2f325755bca248268ed10f9cfdba57b5fe7ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d78a94b628bf077a81f475cad3b2f325755bca248268ed10f9cfdba57b5fe7ef", kill_on_drop: false }`
[INFO] [stdout] d78a94b628bf077a81f475cad3b2f325755bca248268ed10f9cfdba57b5fe7ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47244d8eaf4686516c6af24ee8685df4392767a1f8bb6bc952e5ab6d4d79c588
[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" "47244d8eaf4686516c6af24ee8685df4392767a1f8bb6bc952e5ab6d4d79c588", kill_on_drop: false }`
[INFO] [stderr]    Compiling parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `character`
[INFO] [stdout]   --> src/parser.rs:25:7
[INFO] [stdout]    |
[INFO] [stdout] 25 |         for character in source.chars() {
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_character`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `source`
[INFO] [stdout]   --> src/token.rs:92:25
[INFO] [stdout]    |
[INFO] [stdout] 92 |     pub fn next(&mut self, source:&str, index:usize) {
[INFO] [stdout]    |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_source`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `match_character`
[INFO] [stdout]    --> src/token.rs:135:27
[INFO] [stdout]     |
[INFO] [stdout] 135 |     fn match_keywords(&self, match_character:char) -> bool {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_match_character`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/parser.rs:68:7
[INFO] [stdout]    |
[INFO] [stdout] 68 |         let mut token_pool = self.token_pool();
[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:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 |             let mut token = &mut token_pool[i];
[INFO] [stdout]    |                 ----^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/parser.rs:85:7
[INFO] [stdout]    |
[INFO] [stdout] 85 |         let mut token_pool = self.token_pool();
[INFO] [stdout]    |             ----^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/parser.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |                 let mut token = &token_pool[i];
[INFO] [stdout]    |                     ----^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/token.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn new(token_type:String) -> Token {
[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: `reset`
[INFO] [stdout]    --> src/token.rs:127:5
[INFO] [stdout]     |
[INFO] [stdout] 127 |     fn reset(&mut self) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reset_keywords`
[INFO] [stdout]    --> src/token.rs:178:5
[INFO] [stdout]     |
[INFO] [stdout] 178 |     fn reset_keywords(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "47244d8eaf4686516c6af24ee8685df4392767a1f8bb6bc952e5ab6d4d79c588", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47244d8eaf4686516c6af24ee8685df4392767a1f8bb6bc952e5ab6d4d79c588", kill_on_drop: false }`
[INFO] [stdout] 47244d8eaf4686516c6af24ee8685df4392767a1f8bb6bc952e5ab6d4d79c588
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7494d8fe97d28f2835ab29b62ef140031e5c3072da150dc7794a0fb05282c413
[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" "7494d8fe97d28f2835ab29b62ef140031e5c3072da150dc7794a0fb05282c413", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `character`
[INFO] [stderr]   --> src/parser.rs:25:7
[INFO] [stderr]    |
[INFO] [stderr] 25 |         for character in source.chars() {
[INFO] [stderr]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_character`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `source`
[INFO] [stderr]   --> src/token.rs:92:25
[INFO] [stderr]    |
[INFO] [stderr] 92 |     pub fn next(&mut self, source:&str, index:usize) {
[INFO] [stderr]    |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_source`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `match_character`
[INFO] [stderr]    --> src/token.rs:135:27
[INFO] [stderr]     |
[INFO] [stderr] 135 |     fn match_keywords(&self, match_character:char) -> bool {
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_match_character`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/parser.rs:68:7
[INFO] [stderr]    |
[INFO] [stderr] 68 |         let mut token_pool = self.token_pool();
[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:72:8
[INFO] [stderr]    |
[INFO] [stderr] 72 |             let mut token = &mut token_pool[i];
[INFO] [stderr]    |                 ----^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/parser.rs:85:7
[INFO] [stderr]    |
[INFO] [stderr] 85 |         let mut token_pool = self.token_pool();
[INFO] [stderr]    |             ----^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/parser.rs:95:9
[INFO] [stderr]    |
[INFO] [stderr] 95 |                 let mut token = &token_pool[i];
[INFO] [stderr]    |                     ----^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/token.rs:64:9
[INFO] [stderr]    |
[INFO] [stderr] 64 |     pub fn new(token_type:String) -> Token {
[INFO] [stderr]    |            ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `reset`
[INFO] [stderr]    --> src/token.rs:127:5
[INFO] [stderr]     |
[INFO] [stderr] 127 |     fn reset(&mut self) {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `reset_keywords`
[INFO] [stderr]    --> src/token.rs:178:5
[INFO] [stderr]     |
[INFO] [stderr] 178 |     fn reset_keywords(&mut self) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/parser-30bac125fd5732f8
[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" "7494d8fe97d28f2835ab29b62ef140031e5c3072da150dc7794a0fb05282c413", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7494d8fe97d28f2835ab29b62ef140031e5c3072da150dc7794a0fb05282c413", kill_on_drop: false }`
[INFO] [stdout] 7494d8fe97d28f2835ab29b62ef140031e5c3072da150dc7794a0fb05282c413