[INFO] cloning repository https://github.com/cfsamson/examples-parsers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cfsamson/examples-parsers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcfsamson%2Fexamples-parsers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcfsamson%2Fexamples-parsers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e47801140f65a0b613c09dd8b2a6cd55ed3e51c8
[INFO] testing cfsamson/examples-parsers 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%2Fcfsamson%2Fexamples-parsers" "/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/cfsamson/examples-parsers 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/cfsamson/examples-parsers
[INFO] finished tweaking git repo https://github.com/cfsamson/examples-parsers
[INFO] tweaked toml for git repo https://github.com/cfsamson/examples-parsers written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/cfsamson/examples-parsers 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-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" "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] 0df8b4bceade290056d88cc4ed133ef0a7f291dc3d5552160a37a374e6cd267a
[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" "0df8b4bceade290056d88cc4ed133ef0a7f291dc3d5552160a37a374e6cd267a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0df8b4bceade290056d88cc4ed133ef0a7f291dc3d5552160a37a374e6cd267a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0df8b4bceade290056d88cc4ed133ef0a7f291dc3d5552160a37a374e6cd267a", kill_on_drop: false }`
[INFO] [stdout] 0df8b4bceade290056d88cc4ed133ef0a7f291dc3d5552160a37a374e6cd267a
[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" "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] c9db602f411f41f2e520eeca165606144399a2a3b2ae13ed2ffe9b7b8d2f98ef
[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" "c9db602f411f41f2e520eeca165606144399a2a3b2ae13ed2ffe9b7b8d2f98ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `test`
[INFO] [stdout]  --> src/recursive_ascent.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let test = "[1, [], 3]";
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_test`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test`
[INFO] [stdout]  --> src/recursive_ascent.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn test() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Lex`
[INFO] [stdout]  --> src/recursive_ascent.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Lex {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `token`
[INFO] [stdout]   --> src/recursive_ascent.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn token(&self) -> Token {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Token`
[INFO] [stdout]   --> src/recursive_ascent.rs:16:6
[INFO] [stdout]    |
[INFO] [stdout] 16 | enum Token {
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Value`
[INFO] [stdout]   --> src/recursive_ascent.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | struct Value(JsonValue);
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Array`
[INFO] [stdout]   --> src/recursive_ascent.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct Array(Vec<JsonValue>);
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Elements`
[INFO] [stdout]   --> src/recursive_ascent.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | struct Elements(Vec<JsonValue>);
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `JsonValue`
[INFO] [stdout]   --> src/recursive_ascent.rs:28:6
[INFO] [stdout]    |
[INFO] [stdout] 28 | enum JsonValue {
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `ParseError`
[INFO] [stdout]   --> src/recursive_ascent.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct ParseError;
[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 1.22s
[INFO] running `Command { std: "docker" "inspect" "c9db602f411f41f2e520eeca165606144399a2a3b2ae13ed2ffe9b7b8d2f98ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9db602f411f41f2e520eeca165606144399a2a3b2ae13ed2ffe9b7b8d2f98ef", kill_on_drop: false }`
[INFO] [stdout] c9db602f411f41f2e520eeca165606144399a2a3b2ae13ed2ffe9b7b8d2f98ef
[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" "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] 737feeee6569d3e95ea4cf20ecf4b25f36c73d6e0c2a55ceb27cd07c9e7a3b6c
[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" "737feeee6569d3e95ea4cf20ecf4b25f36c73d6e0c2a55ceb27cd07c9e7a3b6c", kill_on_drop: false }`
[INFO] [stderr]    Compiling parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `test`
[INFO] [stdout]  --> src/recursive_ascent.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let test = "[1, [], 3]";
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_test`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test`
[INFO] [stdout]  --> src/recursive_ascent.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn test() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Lex`
[INFO] [stdout]  --> src/recursive_ascent.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Lex {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `token`
[INFO] [stdout]   --> src/recursive_ascent.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn token(&self) -> Token {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Token`
[INFO] [stdout]   --> src/recursive_ascent.rs:16:6
[INFO] [stdout]    |
[INFO] [stdout] 16 | enum Token {
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Value`
[INFO] [stdout]   --> src/recursive_ascent.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | struct Value(JsonValue);
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Array`
[INFO] [stdout]   --> src/recursive_ascent.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct Array(Vec<JsonValue>);
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Elements`
[INFO] [stdout]   --> src/recursive_ascent.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | struct Elements(Vec<JsonValue>);
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `JsonValue`
[INFO] [stdout]   --> src/recursive_ascent.rs:28:6
[INFO] [stdout]    |
[INFO] [stdout] 28 | enum JsonValue {
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `ParseError`
[INFO] [stdout]   --> src/recursive_ascent.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct ParseError;
[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 0.69s
[INFO] running `Command { std: "docker" "inspect" "737feeee6569d3e95ea4cf20ecf4b25f36c73d6e0c2a55ceb27cd07c9e7a3b6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "737feeee6569d3e95ea4cf20ecf4b25f36c73d6e0c2a55ceb27cd07c9e7a3b6c", kill_on_drop: false }`
[INFO] [stdout] 737feeee6569d3e95ea4cf20ecf4b25f36c73d6e0c2a55ceb27cd07c9e7a3b6c
[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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bd305f1474492bbbbed89ef4ad6a70a97136200cb6735135bd1ac9f90643379f
[INFO] running `Command { std: "docker" "start" "-a" "bd305f1474492bbbbed89ef4ad6a70a97136200cb6735135bd1ac9f90643379f", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `test`
[INFO] [stderr]  --> src/recursive_ascent.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 |     let test = "[1, [], 3]";
[INFO] [stderr]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_test`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test`
[INFO] [stderr]  --> src/recursive_ascent.rs:1:4
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn test() {
[INFO] [stderr]   |    ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Lex`
[INFO] [stderr]  --> src/recursive_ascent.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | struct Lex {
[INFO] [stderr]   |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `token`
[INFO] [stderr]   --> src/recursive_ascent.rs:11:8
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn token(&self) -> Token {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Token`
[INFO] [stderr]   --> src/recursive_ascent.rs:16:6
[INFO] [stderr]    |
[INFO] [stderr] 16 | enum Token {
[INFO] [stderr]    |      ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Value`
[INFO] [stderr]   --> src/recursive_ascent.rs:24:8
[INFO] [stderr]    |
[INFO] [stderr] 24 | struct Value(JsonValue);
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Array`
[INFO] [stderr]   --> src/recursive_ascent.rs:25:8
[INFO] [stderr]    |
[INFO] [stderr] 25 | struct Array(Vec<JsonValue>);
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Elements`
[INFO] [stderr]   --> src/recursive_ascent.rs:26:8
[INFO] [stderr]    |
[INFO] [stderr] 26 | struct Elements(Vec<JsonValue>);
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `JsonValue`
[INFO] [stderr]   --> src/recursive_ascent.rs:28:6
[INFO] [stderr]    |
[INFO] [stderr] 28 | enum JsonValue {
[INFO] [stderr]    |      ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ParseError`
[INFO] [stderr]   --> src/recursive_ascent.rs:33:8
[INFO] [stderr]    |
[INFO] [stderr] 33 | struct ParseError;
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[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" "bd305f1474492bbbbed89ef4ad6a70a97136200cb6735135bd1ac9f90643379f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd305f1474492bbbbed89ef4ad6a70a97136200cb6735135bd1ac9f90643379f", kill_on_drop: false }`
[INFO] [stdout] bd305f1474492bbbbed89ef4ad6a70a97136200cb6735135bd1ac9f90643379f
