[INFO] cloning repository https://github.com/Manonox/intellectual_prikols
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Manonox/intellectual_prikols" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FManonox%2Fintellectual_prikols", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FManonox%2Fintellectual_prikols'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b7b2569baca7af706eeb6605daf2745d007105f7
[INFO] building Manonox/intellectual_prikols against master#44f415c1d617ebc7b931a243b7b321ef8a6ca47c for pr-142134-abi-ast-error
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FManonox%2Fintellectual_prikols" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Manonox/intellectual_prikols 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/Manonox/intellectual_prikols
[INFO] finished tweaking git repo https://github.com/Manonox/intellectual_prikols
[INFO] tweaked toml for git repo https://github.com/Manonox/intellectual_prikols written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Manonox/intellectual_prikols 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 crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded slab_tree v0.3.2
[INFO] [stderr]   Downloaded snowflake v1.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 58939f88c07bbc3ae1b2616cb44158edb786409d9c0bacb4d212f2c7ad5b77bd
[INFO] running `Command { std: "docker" "start" "-a" "58939f88c07bbc3ae1b2616cb44158edb786409d9c0bacb4d212f2c7ad5b77bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "58939f88c07bbc3ae1b2616cb44158edb786409d9c0bacb4d212f2c7ad5b77bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58939f88c07bbc3ae1b2616cb44158edb786409d9c0bacb4d212f2c7ad5b77bd", kill_on_drop: false }`
[INFO] [stdout] 58939f88c07bbc3ae1b2616cb44158edb786409d9c0bacb4d212f2c7ad5b77bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 4c0b76156096681e8600f33af6d6e97381fd37162d2c484b68a4ad5f824adc19
[INFO] running `Command { std: "docker" "start" "-a" "4c0b76156096681e8600f33af6d6e97381fd37162d2c484b68a4ad5f824adc19", kill_on_drop: false }`
[INFO] [stderr]    Compiling snowflake v1.3.0
[INFO] [stderr]    Compiling slab_tree v0.3.2
[INFO] [stderr]    Compiling lab1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `middle_value_option` is never read
[INFO] [stdout]   --> src/bfs.rs:64:13
[INFO] [stdout]    |
[INFO] [stdout] 64 |     let mut middle_value_option = None;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `normal` is never used
[INFO] [stdout]  --> src/bfs.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn normal(start: i32, target: i32, functions: &Vec<fn(i32) -> i32>) -> Vec<i32> {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.72s
[INFO] running `Command { std: "docker" "inspect" "4c0b76156096681e8600f33af6d6e97381fd37162d2c484b68a4ad5f824adc19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c0b76156096681e8600f33af6d6e97381fd37162d2c484b68a4ad5f824adc19", kill_on_drop: false }`
[INFO] [stdout] 4c0b76156096681e8600f33af6d6e97381fd37162d2c484b68a4ad5f824adc19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] d0145cdc39c4b15b0a910eb798e5f7231ec81ea22c3f46ad857ba623e145e10e
[INFO] running `Command { std: "docker" "start" "-a" "d0145cdc39c4b15b0a910eb798e5f7231ec81ea22c3f46ad857ba623e145e10e", kill_on_drop: false }`
[INFO] [stderr]    Compiling lab1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `middle_value_option` is never read
[INFO] [stdout]   --> src/bfs.rs:64:13
[INFO] [stdout]    |
[INFO] [stdout] 64 |     let mut middle_value_option = None;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `normal` is never used
[INFO] [stdout]  --> src/bfs.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn normal(start: i32, target: i32, functions: &Vec<fn(i32) -> i32>) -> Vec<i32> {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "d0145cdc39c4b15b0a910eb798e5f7231ec81ea22c3f46ad857ba623e145e10e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0145cdc39c4b15b0a910eb798e5f7231ec81ea22c3f46ad857ba623e145e10e", kill_on_drop: false }`
[INFO] [stdout] d0145cdc39c4b15b0a910eb798e5f7231ec81ea22c3f46ad857ba623e145e10e