[INFO] cloning repository https://github.com/baloo/laurn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/baloo/laurn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbaloo%2Flaurn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbaloo%2Flaurn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4f02112a98c093515166bb532cfcd497a985a092
[INFO] checking baloo/laurn against eca445e5ae4a6679cc27d3a09106ce245e13a5a6 for pr-162478
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbaloo%2Flaurn" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/baloo/laurn
[INFO] finished tweaking git repo https://github.com/baloo/laurn
[INFO] tweaked toml for git repo https://github.com/baloo/laurn written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/baloo/laurn on toolchain eca445e5ae4a6679cc27d3a09106ce245e13a5a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/baloo/laurn 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" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded redox_syscall v0.2.8
[INFO] [stderr]   Downloaded home v0.5.3
[INFO] [stderr]   Downloaded syn v1.0.72
[INFO] [stderr]   Downloaded lexical-core v0.7.6
[INFO] [stderr]   Downloaded libc v0.2.94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] fb8bf2321ecffa345c8e3714a16b9562437d9373e834af95f743def2b7c3569f
[INFO] running `Command { std: "docker" "start" "fb8bf2321ecffa345c8e3714a16b9562437d9373e834af95f743def2b7c3569f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb8bf2321ecffa345c8e3714a16b9562437d9373e834af95f743def2b7c3569f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "fb8bf2321ecffa345c8e3714a16b9562437d9373e834af95f743def2b7c3569f" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb8bf2321ecffa345c8e3714a16b9562437d9373e834af95f743def2b7c3569f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "fb8bf2321ecffa345c8e3714a16b9562437d9373e834af95f743def2b7c3569f" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking home v0.5.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking nix v0.18.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking laurn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> src/container.rs:99:5
[INFO] [stdout]    |
[INFO] [stdout] 99 |     named!(pub references<&[u8], Vec<PathBuf>>,  map!(list_path, from_slice));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]    = note: to ignore the value produced by the macro, add a semicolon after the invocation of `map`
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: `#[warn(semicolon_in_expressions_from_non_local_macros)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout]    = note: this warning originates in the macro `map` which comes from the expansion of the macro `named` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> src/container.rs:99:5
[INFO] [stdout]    |
[INFO] [stdout] 99 |     named!(pub references<&[u8], Vec<PathBuf>>,  map!(list_path, from_slice));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]    = note: to ignore the value produced by the macro, add a semicolon after the invocation of `map`
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: `#[warn(semicolon_in_expressions_from_non_local_macros)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout]    = note: this warning originates in the macro `map` which comes from the expansion of the macro `named` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/run.rs:319:5
[INFO] [stdout]     |
[INFO] [stdout] 311 | /     unistd::execv(
[INFO] [stdout] 312 | |         CString::new(shell_wrapper)
[INFO] [stdout] 313 | |             .map_err(RunError::Nul)?
[INFO] [stdout] 314 | |             .as_c_str(),
[INFO] [stdout] ...   |
[INFO] [stdout] 317 | |     .map_err(RunError::Exec)?;
[INFO] [stdout]     | |_____________________________- any code following this expression is unreachable
[INFO] [stdout] 318 |
[INFO] [stdout] 319 |       unreachable!("exec returned?");
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/run.rs:319:5
[INFO] [stdout]     |
[INFO] [stdout] 311 | /     unistd::execv(
[INFO] [stdout] 312 | |         CString::new(shell_wrapper)
[INFO] [stdout] 313 | |             .map_err(RunError::Nul)?
[INFO] [stdout] 314 | |             .as_c_str(),
[INFO] [stdout] ...   |
[INFO] [stdout] 317 | |     .map_err(RunError::Exec)?;
[INFO] [stdout]     | |_____________________________- any code following this expression is unreachable
[INFO] [stdout] 318 |
[INFO] [stdout] 319 |       unreachable!("exec returned?");
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/bin/laurn.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Run(run::RunError),
[INFO] [stdout]    |     --- ^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 12 -     Run(run::RunError),
[INFO] [stdout] 12 +     Run(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/bin/laurn.rs:13:11
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Build(BuildError),
[INFO] [stdout]    |     ----- ^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 13 -     Build(BuildError),
[INFO] [stdout] 13 +     Build(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/bin/laurn.rs:14:16
[INFO] [stdout]    |
[INFO] [stdout] 14 |     CurrentDir(IoError),
[INFO] [stdout]    |     ---------- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 14 -     CurrentDir(IoError),
[INFO] [stdout] 14 +     CurrentDir(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/bin/laurn.rs:15:16
[INFO] [stdout]    |
[INFO] [stdout] 15 |     CurrentExe(IoError),
[INFO] [stdout]    |     ---------- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 15 -     CurrentExe(IoError),
[INFO] [stdout] 15 +     CurrentExe(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/bin/laurn.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     Config(ConfigError),
[INFO] [stdout]    |     ------ ^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 16 -     Config(ConfigError),
[INFO] [stdout] 16 +     Config(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/bin/laurn.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Run(run::RunError),
[INFO] [stdout]    |     --- ^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 12 -     Run(run::RunError),
[INFO] [stdout] 12 +     Run(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/bin/laurn.rs:13:11
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Build(BuildError),
[INFO] [stdout]    |     ----- ^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 13 -     Build(BuildError),
[INFO] [stdout] 13 +     Build(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/bin/laurn.rs:14:16
[INFO] [stdout]    |
[INFO] [stdout] 14 |     CurrentDir(IoError),
[INFO] [stdout]    |     ---------- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 14 -     CurrentDir(IoError),
[INFO] [stdout] 14 +     CurrentDir(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/bin/laurn.rs:15:16
[INFO] [stdout]    |
[INFO] [stdout] 15 |     CurrentExe(IoError),
[INFO] [stdout]    |     ---------- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 15 -     CurrentExe(IoError),
[INFO] [stdout] 15 +     CurrentExe(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/bin/laurn.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     Config(ConfigError),
[INFO] [stdout]    |     ------ ^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 16 -     Config(ConfigError),
[INFO] [stdout] 16 +     Config(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.88s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: laurn v0.1.0 (/opt/rustwide/workdir), nom v5.1.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 7`
[INFO] running `Command { std: "docker" "inspect" "fb8bf2321ecffa345c8e3714a16b9562437d9373e834af95f743def2b7c3569f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb8bf2321ecffa345c8e3714a16b9562437d9373e834af95f743def2b7c3569f", kill_on_drop: false }`
[INFO] [stdout] fb8bf2321ecffa345c8e3714a16b9562437d9373e834af95f743def2b7c3569f
