[INFO] cloning repository https://github.com/aHeraud/bfc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aHeraud/bfc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FaHeraud%2Fbfc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FaHeraud%2Fbfc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a7f835313581bb6f8dd1838d91b00a6010d1afc7
[INFO] checking aHeraud/bfc against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FaHeraud%2Fbfc" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/aHeraud/bfc
[INFO] finished tweaking git repo https://github.com/aHeraud/bfc
[INFO] tweaked toml for git repo https://github.com/aHeraud/bfc written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/aHeraud/bfc on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/aHeraud/bfc 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7bfed0f02ab140ba30221a4e3cbb2ca709197cf7007366d327ea5ebb0318c5cc
[INFO] running `Command { std: "docker" "start" "-a" "7bfed0f02ab140ba30221a4e3cbb2ca709197cf7007366d327ea5ebb0318c5cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7bfed0f02ab140ba30221a4e3cbb2ca709197cf7007366d327ea5ebb0318c5cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bfed0f02ab140ba30221a4e3cbb2ca709197cf7007366d327ea5ebb0318c5cc", kill_on_drop: false }`
[INFO] [stdout] 7bfed0f02ab140ba30221a4e3cbb2ca709197cf7007366d327ea5ebb0318c5cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5bffdcb7e324fc83c1597a07aa02c0b3c5de129ef9d9b27c939d0ef2b07c1807
[INFO] running `Command { std: "docker" "start" "-a" "5bffdcb7e324fc83c1597a07aa02c0b3c5de129ef9d9b27c939d0ef2b07c1807", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.48
[INFO] [stderr]    Compiling proc-macro2 v0.4.26
[INFO] [stderr]    Compiling rand_core v0.4.0
[INFO] [stderr]    Compiling syn v1.0.8
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[INFO] [stderr]     Checking cfg-if v0.1.6
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[INFO] [stderr]    Compiling cranelift-codegen-shared v0.50.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling cc v1.0.28
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]     Checking log v0.4.6
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[INFO] [stderr]    Compiling lalrpop-util v0.17.2
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
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[INFO] [stderr]     Checking textwrap v0.11.0
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[INFO] [stderr]    Compiling string_cache_codegen v0.4.2
[INFO] [stderr]     Checking ansi_term v0.11.0
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[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.5
[INFO] [stderr]    Compiling scroll_derive v0.10.1
[INFO] [stderr]    Compiling structopt-derive v0.3.4
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]     Checking scroll v0.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.85
[INFO] [stderr]     Checking thiserror v1.0.5
[INFO] [stderr]     Checking goblin v0.1.1
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking structopt v0.3.4
[INFO] [stderr]     Checking string-interner v0.7.1
[INFO] [stderr]    Compiling cranelift-codegen v0.50.0
[INFO] [stderr]    Compiling docopt v1.0.2
[INFO] [stderr]     Checking faerie v0.12.0
[INFO] [stderr]    Compiling lalrpop v0.17.2
[INFO] [stderr]     Checking cranelift-module v0.50.0
[INFO] [stderr]     Checking cranelift-frontend v0.50.0
[INFO] [stderr]     Checking cranelift-faerie v0.50.0
[INFO] [stderr]     Checking cranelift v0.50.0
[INFO] [stderr]    Compiling bfc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bfc-8475e2bdbb444cab/out/grammar.rs:838:5
[INFO] [stdout]     |
[INFO] [stdout] 838 |     (__0)
[INFO] [stdout]     |     ^   ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 838 -     (__0)
[INFO] [stdout] 838 +     __0
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bfc-8475e2bdbb444cab/out/grammar.rs:838:5
[INFO] [stdout]     |
[INFO] [stdout] 838 |     (__0)
[INFO] [stdout]     |     ^   ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 838 -     (__0)
[INFO] [stdout] 838 +     __0
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `getchar` is never read
[INFO] [stdout]    --> src/codegen.rs:122:5
[INFO] [stdout]     |
[INFO] [stdout] 115 | struct TranslationContext<'a, 'b> {
[INFO] [stdout]     |        ------------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 122 |     getchar: FuncRef
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<(usize, Token, usize), LexerError>
[INFO] [stdout]   --> src/lexer.rs:40:51
[INFO] [stdout]    |
[INFO] [stdout] 40 |                 Some((index, '[')) => return Some(Ok((index, Token::LoopStart, index + 1))),
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<(usize, Token, usize), LexerError>
[INFO] [stdout]   --> src/lexer.rs:41:51
[INFO] [stdout]    |
[INFO] [stdout] 41 |                 Some((index, ']')) => return Some(Ok((index, Token::LoopEnd, index + 1))),
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<(usize, Token, usize), LexerError>
[INFO] [stdout]   --> src/lexer.rs:42:51
[INFO] [stdout]    |
[INFO] [stdout] 42 |                 Some((index, '+')) => return Some(Ok((index, Token::Inc, index + 1))),
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<(usize, Token, usize), LexerError>
[INFO] [stdout]   --> src/lexer.rs:43:51
[INFO] [stdout]    |
[INFO] [stdout] 43 |                 Some((index, '-')) => return Some(Ok((index, Token::Dec, index + 1))),
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<(usize, Token, usize), LexerError>
[INFO] [stdout]   --> src/lexer.rs:44:51
[INFO] [stdout]    |
[INFO] [stdout] 44 |                 Some((index, '>')) => return Some(Ok((index, Token::IncPtr, index + 1))),
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<(usize, Token, usize), LexerError>
[INFO] [stdout]   --> src/lexer.rs:45:51
[INFO] [stdout]    |
[INFO] [stdout] 45 |                 Some((index, '<')) => return Some(Ok((index, Token::DecPtr, index + 1))),
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<(usize, Token, usize), LexerError>
[INFO] [stdout]   --> src/lexer.rs:46:51
[INFO] [stdout]    |
[INFO] [stdout] 46 |                 Some((index, '.')) => return Some(Ok((index, Token::Print, index + 1))),
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<(usize, Token, usize), LexerError>
[INFO] [stdout]   --> src/lexer.rs:47:51
[INFO] [stdout]    |
[INFO] [stdout] 47 |                 Some((index, ',')) => return Some(Ok((index, Token::Read, index + 1))),
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/codegen.rs:236:25
[INFO] [stdout]     |
[INFO] [stdout] 236 |             _ => panic!(format!("Codegen for {:?} not implemented", self))
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 236 -             _ => panic!(format!("Codegen for {:?} not implemented", self))
[INFO] [stdout] 236 +             _ => panic!("Codegen for {:?} not implemented", self)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<(usize, Token, usize), LexerError>
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfc-8475e2bdbb444cab/out/grammar.rs:1051:15
[INFO] [stdout]      |
[INFO] [stdout] 1051 |         match value {
[INFO] [stdout]      |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bfc` (bin "bfc" test) due to 9 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: field `getchar` is never read
[INFO] [stdout]    --> src/codegen.rs:122:5
[INFO] [stdout]     |
[INFO] [stdout] 115 | struct TranslationContext<'a, 'b> {
[INFO] [stdout]     |        ------------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 122 |     getchar: FuncRef
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<(usize, Token, usize), LexerError>
[INFO] [stdout]   --> src/lexer.rs:40:51
[INFO] [stdout]    |
[INFO] [stdout] 40 |                 Some((index, '[')) => return Some(Ok((index, Token::LoopStart, index + 1))),
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<(usize, Token, usize), LexerError>
[INFO] [stdout]   --> src/lexer.rs:41:51
[INFO] [stdout]    |
[INFO] [stdout] 41 |                 Some((index, ']')) => return Some(Ok((index, Token::LoopEnd, index + 1))),
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<(usize, Token, usize), LexerError>
[INFO] [stdout]   --> src/lexer.rs:42:51
[INFO] [stdout]    |
[INFO] [stdout] 42 |                 Some((index, '+')) => return Some(Ok((index, Token::Inc, index + 1))),
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<(usize, Token, usize), LexerError>
[INFO] [stdout]   --> src/lexer.rs:43:51
[INFO] [stdout]    |
[INFO] [stdout] 43 |                 Some((index, '-')) => return Some(Ok((index, Token::Dec, index + 1))),
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<(usize, Token, usize), LexerError>
[INFO] [stdout]   --> src/lexer.rs:44:51
[INFO] [stdout]    |
[INFO] [stdout] 44 |                 Some((index, '>')) => return Some(Ok((index, Token::IncPtr, index + 1))),
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<(usize, Token, usize), LexerError>
[INFO] [stdout]   --> src/lexer.rs:45:51
[INFO] [stdout]    |
[INFO] [stdout] 45 |                 Some((index, '<')) => return Some(Ok((index, Token::DecPtr, index + 1))),
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<(usize, Token, usize), LexerError>
[INFO] [stdout]   --> src/lexer.rs:46:51
[INFO] [stdout]    |
[INFO] [stdout] 46 |                 Some((index, '.')) => return Some(Ok((index, Token::Print, index + 1))),
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<(usize, Token, usize), LexerError>
[INFO] [stdout]   --> src/lexer.rs:47:51
[INFO] [stdout]    |
[INFO] [stdout] 47 |                 Some((index, ',')) => return Some(Ok((index, Token::Read, index + 1))),
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/codegen.rs:236:25
[INFO] [stdout]     |
[INFO] [stdout] 236 |             _ => panic!(format!("Codegen for {:?} not implemented", self))
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 236 -             _ => panic!(format!("Codegen for {:?} not implemented", self))
[INFO] [stdout] 236 +             _ => panic!("Codegen for {:?} not implemented", self)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<(usize, Token, usize), LexerError>
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfc-8475e2bdbb444cab/out/grammar.rs:1051:15
[INFO] [stdout]      |
[INFO] [stdout] 1051 |         match value {
[INFO] [stdout]      |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bfc` (bin "bfc") due to 9 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "5bffdcb7e324fc83c1597a07aa02c0b3c5de129ef9d9b27c939d0ef2b07c1807", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bffdcb7e324fc83c1597a07aa02c0b3c5de129ef9d9b27c939d0ef2b07c1807", kill_on_drop: false }`
[INFO] [stdout] 5bffdcb7e324fc83c1597a07aa02c0b3c5de129ef9d9b27c939d0ef2b07c1807
