[INFO] cloning repository https://github.com/ddsnowboard/json-parser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ddsnowboard/json-parser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fddsnowboard%2Fjson-parser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fddsnowboard%2Fjson-parser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 697bc414b355689bd5e8d02ad6c2e3949b3256d3
[INFO] checking ddsnowboard/json-parser against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fddsnowboard%2Fjson-parser" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ddsnowboard/json-parser on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ddsnowboard/json-parser
[INFO] finished tweaking git repo https://github.com/ddsnowboard/json-parser
[INFO] tweaked toml for git repo https://github.com/ddsnowboard/json-parser written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ddsnowboard/json-parser already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bbf3bfa1ef4783380bfe196dc4affe2e15f937a8c468a8d9224e7a29d8dd5432
[INFO] running `Command { std: "docker" "start" "-a" "bbf3bfa1ef4783380bfe196dc4affe2e15f937a8c468a8d9224e7a29d8dd5432", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bbf3bfa1ef4783380bfe196dc4affe2e15f937a8c468a8d9224e7a29d8dd5432", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbf3bfa1ef4783380bfe196dc4affe2e15f937a8c468a8d9224e7a29d8dd5432", kill_on_drop: false }`
[INFO] [stdout] bbf3bfa1ef4783380bfe196dc4affe2e15f937a8c468a8d9224e7a29d8dd5432
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 24906d0de5adf58c62094c30949cf34d3d6cc3920ed002e88f4f9b2c404feae1
[INFO] running `Command { std: "docker" "start" "-a" "24906d0de5adf58c62094c30949cf34d3d6cc3920ed002e88f4f9b2c404feae1", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]     Checking json_parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `AddSubtractParser` and `MultiplyDivideParser`
[INFO] [stdout]  --> src/ast_parser/math/test.rs:1:38
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::ast_parser::math::infix::{AddSubtractParser, MultiplyDivideParser};
[INFO] [stdout]   |                                      ^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_pair` is never used
[INFO] [stdout]   --> src/ast_parser/mod.rs:54:4
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn make_pair<'a>(key: &'a str, value: ASTNode<'a>) -> ASTNode<'a> {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.97s
[INFO] running `Command { std: "docker" "inspect" "24906d0de5adf58c62094c30949cf34d3d6cc3920ed002e88f4f9b2c404feae1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24906d0de5adf58c62094c30949cf34d3d6cc3920ed002e88f4f9b2c404feae1", kill_on_drop: false }`
[INFO] [stdout] 24906d0de5adf58c62094c30949cf34d3d6cc3920ed002e88f4f9b2c404feae1
[INFO] checking ddsnowboard/json-parser against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fddsnowboard%2Fjson-parser" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ddsnowboard/json-parser on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ddsnowboard/json-parser
[INFO] finished tweaking git repo https://github.com/ddsnowboard/json-parser
[INFO] tweaked toml for git repo https://github.com/ddsnowboard/json-parser written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ddsnowboard/json-parser already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] da2cdd1ba6508802ab0c27e7d42cdbca13ad2e302d482a30626e04b03a6ac4eb
[INFO] running `Command { std: "docker" "start" "-a" "da2cdd1ba6508802ab0c27e7d42cdbca13ad2e302d482a30626e04b03a6ac4eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da2cdd1ba6508802ab0c27e7d42cdbca13ad2e302d482a30626e04b03a6ac4eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da2cdd1ba6508802ab0c27e7d42cdbca13ad2e302d482a30626e04b03a6ac4eb", kill_on_drop: false }`
[INFO] [stdout] da2cdd1ba6508802ab0c27e7d42cdbca13ad2e302d482a30626e04b03a6ac4eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 448c5c5e6ea3553bbbea5fe5bcf44dfb250136605e5e004ac99c6b61e8f7f6e2
[INFO] running `Command { std: "docker" "start" "-a" "448c5c5e6ea3553bbbea5fe5bcf44dfb250136605e5e004ac99c6b61e8f7f6e2", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]     Checking json_parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `AddSubtractParser` and `MultiplyDivideParser`
[INFO] [stdout]  --> src/ast_parser/math/test.rs:1:38
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::ast_parser::math::infix::{AddSubtractParser, MultiplyDivideParser};
[INFO] [stdout]   |                                      ^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_pair` is never used
[INFO] [stdout]   --> src/ast_parser/mod.rs:54:4
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn make_pair<'a>(key: &'a str, value: ASTNode<'a>) -> ASTNode<'a> {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.94s
[INFO] running `Command { std: "docker" "inspect" "448c5c5e6ea3553bbbea5fe5bcf44dfb250136605e5e004ac99c6b61e8f7f6e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "448c5c5e6ea3553bbbea5fe5bcf44dfb250136605e5e004ac99c6b61e8f7f6e2", kill_on_drop: false }`
[INFO] [stdout] 448c5c5e6ea3553bbbea5fe5bcf44dfb250136605e5e004ac99c6b61e8f7f6e2