[INFO] cloning repository https://github.com/Lukas412/bf_bf
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Lukas412/bf_bf" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLukas412%2Fbf_bf", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLukas412%2Fbf_bf'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7249d346c191089212aa7509ede9d580e771f2dd
[INFO] checking Lukas412/bf_bf against try#9961e55b3687a6d0b2bab4af0e5e81494b09be81 for pr-139087-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLukas412%2Fbf_bf" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Lukas412/bf_bf
[INFO] finished tweaking git repo https://github.com/Lukas412/bf_bf
[INFO] tweaked toml for git repo https://github.com/Lukas412/bf_bf written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Lukas412/bf_bf on toolchain 9961e55b3687a6d0b2bab4af0e5e81494b09be81
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9961e55b3687a6d0b2bab4af0e5e81494b09be81" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Lukas412/bf_bf 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" "+9961e55b3687a6d0b2bab4af0e5e81494b09be81" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /workspace/builds/worker-0-tc2/source/bf_run/Cargo.toml
[INFO] [stderr] workspace: /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /workspace/builds/worker-0-tc2/source/bf_bf/Cargo.toml
[INFO] [stderr] workspace: /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking Lukas412/bf_bf against try#9961e55b3687a6d0b2bab4af0e5e81494b09be81 for pr-139087-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLukas412%2Fbf_bf" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Lukas412/bf_bf
[INFO] finished tweaking git repo https://github.com/Lukas412/bf_bf
[INFO] tweaked toml for git repo https://github.com/Lukas412/bf_bf written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Lukas412/bf_bf on toolchain 9961e55b3687a6d0b2bab4af0e5e81494b09be81
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9961e55b3687a6d0b2bab4af0e5e81494b09be81" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Lukas412/bf_bf 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" "+9961e55b3687a6d0b2bab4af0e5e81494b09be81" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /workspace/builds/worker-0-tc2/source/bf_run/Cargo.toml
[INFO] [stderr] workspace: /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /workspace/builds/worker-0-tc2/source/bf_bf/Cargo.toml
[INFO] [stderr] workspace: /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+9961e55b3687a6d0b2bab4af0e5e81494b09be81" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 952bc06607afd34e34c5443b0dd968ed182bd395bcc8f3263f820806bdd91380
[INFO] running `Command { std: "docker" "start" "-a" "952bc06607afd34e34c5443b0dd968ed182bd395bcc8f3263f820806bdd91380", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "952bc06607afd34e34c5443b0dd968ed182bd395bcc8f3263f820806bdd91380", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "952bc06607afd34e34c5443b0dd968ed182bd395bcc8f3263f820806bdd91380", kill_on_drop: false }`
[INFO] [stdout] 952bc06607afd34e34c5443b0dd968ed182bd395bcc8f3263f820806bdd91380
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+9961e55b3687a6d0b2bab4af0e5e81494b09be81" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cbcf88c2fe3fbed01a40a84d90b90373a82532f745fb84c306dbce78a422c66b
[INFO] running `Command { std: "docker" "start" "-a" "cbcf88c2fe3fbed01a40a84d90b90373a82532f745fb84c306dbce78a422c66b", kill_on_drop: false }`
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /opt/rustwide/workdir/bf_run/Cargo.toml
[INFO] [stderr] workspace: /opt/rustwide/workdir/Cargo.toml
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /opt/rustwide/workdir/bf_bf/Cargo.toml
[INFO] [stderr] workspace: /opt/rustwide/workdir/Cargo.toml
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]     Checking bf_run v0.1.0 (/opt/rustwide/workdir/bf_run)
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> bf_run/src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> bf_run/src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `remove`
[INFO] [stdout]   --> bf_run/src/lib.rs:95:42
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub fn remove_append_code(&mut self, remove: usize, append: &str) -> Result<(), ()> {
[INFO] [stdout]    |                                          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_remove`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking bf_bf v0.1.0 (/opt/rustwide/workdir/bf_bf)
[INFO] [stdout] warning: unused variable: `remove`
[INFO] [stdout]   --> bf_run/src/lib.rs:95:42
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub fn remove_append_code(&mut self, remove: usize, append: &str) -> Result<(), ()> {
[INFO] [stdout]    |                                          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_remove`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> bf_bf/src/main.rs:61:27
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn next(&mut self) -> &str {
[INFO] [stdout]    |        ----               ^^^^ expected `&str`, found `()`
[INFO] [stdout]    |        |
[INFO] [stdout]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `finish_execution`
[INFO] [stdout]   --> bf_bf/src/main.rs:36:38
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn find_next_vertical(&mut self, finish_execution: bool) -> String {
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_finish_execution`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `finish_execution`
[INFO] [stdout]   --> bf_bf/src/main.rs:41:40
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn find_next_horizontal(&mut self, finish_execution: bool, max_length: usize) -> String {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_finish_execution`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_length`
[INFO] [stdout]   --> bf_bf/src/main.rs:41:64
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn find_next_horizontal(&mut self, finish_execution: bool, max_length: usize) -> String {
[INFO] [stdout]    |                                                                ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bf_bf` (bin "bf_bf") due to 1 previous error; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> bf_bf/src/main.rs:61:27
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn next(&mut self) -> &str {
[INFO] [stdout]    |        ----               ^^^^ expected `&str`, found `()`
[INFO] [stdout]    |        |
[INFO] [stdout]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `finish_execution`
[INFO] [stdout]   --> bf_bf/src/main.rs:36:38
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn find_next_vertical(&mut self, finish_execution: bool) -> String {
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_finish_execution`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `finish_execution`
[INFO] [stdout]   --> bf_bf/src/main.rs:41:40
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn find_next_horizontal(&mut self, finish_execution: bool, max_length: usize) -> String {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_finish_execution`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_length`
[INFO] [stdout]   --> bf_bf/src/main.rs:41:64
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn find_next_horizontal(&mut self, finish_execution: bool, max_length: usize) -> String {
[INFO] [stdout]    |                                                                ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bf_bf` (bin "bf_bf" test) due to 1 previous error; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "cbcf88c2fe3fbed01a40a84d90b90373a82532f745fb84c306dbce78a422c66b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbcf88c2fe3fbed01a40a84d90b90373a82532f745fb84c306dbce78a422c66b", kill_on_drop: false }`
[INFO] [stdout] cbcf88c2fe3fbed01a40a84d90b90373a82532f745fb84c306dbce78a422c66b