[INFO] cloning repository https://github.com/nikita-skobov/simple-yaml-task-runner
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nikita-skobov/simple-yaml-task-runner" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnikita-skobov%2Fsimple-yaml-task-runner", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnikita-skobov%2Fsimple-yaml-task-runner'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ba9da2a5937b349b2ecc882cf3918017ac64d233
[INFO] building nikita-skobov/simple-yaml-task-runner/ba9da2a5937b349b2ecc882cf3918017ac64d233 against master#44f415c1d617ebc7b931a243b7b321ef8a6ca47c for pr-142134-abi-ast-error
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnikita-skobov%2Fsimple-yaml-task-runner" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nikita-skobov/simple-yaml-task-runner on toolchain 44f415c1d617ebc7b931a243b7b321ef8a6ca47c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nikita-skobov/simple-yaml-task-runner
[INFO] finished tweaking git repo https://github.com/nikita-skobov/simple-yaml-task-runner
[INFO] tweaked toml for git repo https://github.com/nikita-skobov/simple-yaml-task-runner written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/nikita-skobov/simple-yaml-task-runner 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" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/nikita-skobov/abstract-pipeline-parsers`
[INFO] [stderr]     Updating git repository `https://github.com/nikita-skobov/abstract-pipeline-runner`
[INFO] [stderr]     Updating git repository `https://github.com/nikita-skobov/context-based-variable-substitution`
[INFO] [stderr]     Updating git repository `https://github.com/nikita-skobov/yaml-variable-substitution`
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] [stderr]       Adding abstract_pipeline_parsers v0.1.0 (https://github.com/nikita-skobov/abstract-pipeline-parsers#9669634e)
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 31692ae64492af5452ceb9ae45026eb902a9303a30c14efd4cb42304ed23a196
[INFO] running `Command { std: "docker" "start" "-a" "31692ae64492af5452ceb9ae45026eb902a9303a30c14efd4cb42304ed23a196", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "31692ae64492af5452ceb9ae45026eb902a9303a30c14efd4cb42304ed23a196", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31692ae64492af5452ceb9ae45026eb902a9303a30c14efd4cb42304ed23a196", kill_on_drop: false }`
[INFO] [stdout] 31692ae64492af5452ceb9ae45026eb902a9303a30c14efd4cb42304ed23a196
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ea5de83c9a5960b3f162b8612ba232bceb88c68dedfd68e71cfbab572dcebb3
[INFO] running `Command { std: "docker" "start" "-a" "5ea5de83c9a5960b3f162b8612ba232bceb88c68dedfd68e71cfbab572dcebb3", kill_on_drop: false }`
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling linked-hash-map v0.5.3
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling yaml-rust v0.4.4
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling aho-corasick v0.7.13
[INFO] [stderr]    Compiling abstract_pipeline_runner v0.1.0 (https://github.com/nikita-skobov/abstract-pipeline-runner#d374b099)
[INFO] [stderr]    Compiling abstract_pipeline_parsers v0.1.0 (https://github.com/nikita-skobov/abstract-pipeline-parsers#9669634e)
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling context_based_variable_substitution v1.0.0 (https://github.com/nikita-skobov/context-based-variable-substitution#12562137)
[INFO] [stderr]    Compiling yaml_variable_substitution v1.0.0 (https://github.com/nikita-skobov/yaml-variable-substitution#ec747b56)
[INFO] [stderr]    Compiling simple-yaml-task-runner v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ansi_term::Colour::Yellow`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use ansi_term::Colour::Yellow;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `syntax_char`
[INFO] [stdout]   --> src/main.rs:42:45
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn get_value_from_key(&self, key: &str, syntax_char: char) -> Option<String> {
[INFO] [stdout]    |                                             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_syntax_char`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:300:9
[INFO] [stdout]     |
[INFO] [stdout] 300 |     let mut task = ShellTask {};
[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/main.rs:305:9
[INFO] [stdout]     |
[INFO] [stdout] 305 |     let mut root_node = yaml.make_node(&task);
[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/main.rs:341:9
[INFO] [stdout]     |
[INFO] [stdout] 341 |     let mut root_node = root_node.unwrap();
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.69s
[INFO] running `Command { std: "docker" "inspect" "5ea5de83c9a5960b3f162b8612ba232bceb88c68dedfd68e71cfbab572dcebb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ea5de83c9a5960b3f162b8612ba232bceb88c68dedfd68e71cfbab572dcebb3", kill_on_drop: false }`
[INFO] [stdout] 5ea5de83c9a5960b3f162b8612ba232bceb88c68dedfd68e71cfbab572dcebb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34afd56f6da51ffd09c5a14812b969cd88ca0b0327c1929680f572bb635b2b18
[INFO] running `Command { std: "docker" "start" "-a" "34afd56f6da51ffd09c5a14812b969cd88ca0b0327c1929680f572bb635b2b18", kill_on_drop: false }`
[INFO] [stderr]    Compiling simple-yaml-task-runner v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ansi_term::Colour::Yellow`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use ansi_term::Colour::Yellow;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `syntax_char`
[INFO] [stdout]   --> src/main.rs:42:45
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn get_value_from_key(&self, key: &str, syntax_char: char) -> Option<String> {
[INFO] [stdout]    |                                             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_syntax_char`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:300:9
[INFO] [stdout]     |
[INFO] [stdout] 300 |     let mut task = ShellTask {};
[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/main.rs:305:9
[INFO] [stdout]     |
[INFO] [stdout] 305 |     let mut root_node = yaml.make_node(&task);
[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/main.rs:341:9
[INFO] [stdout]     |
[INFO] [stdout] 341 |     let mut root_node = root_node.unwrap();
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "34afd56f6da51ffd09c5a14812b969cd88ca0b0327c1929680f572bb635b2b18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34afd56f6da51ffd09c5a14812b969cd88ca0b0327c1929680f572bb635b2b18", kill_on_drop: false }`
[INFO] [stdout] 34afd56f6da51ffd09c5a14812b969cd88ca0b0327c1929680f572bb635b2b18