[INFO] cloning repository https://github.com/sunjay/lion
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sunjay/lion" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsunjay%2Flion", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsunjay%2Flion'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 97daa3de1a7e7714432c2a6d04b11a0ce35d4ec8
[INFO] checking sunjay/lion against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsunjay%2Flion" "/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/sunjay/lion on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sunjay/lion
[INFO] finished tweaking git repo https://github.com/sunjay/lion
[INFO] tweaked toml for git repo https://github.com/sunjay/lion written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/sunjay/lion 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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ctor v0.1.9
[INFO] [stderr]   Downloaded bytecount v0.3.2
[INFO] [stderr]   Downloaded nom_locate v0.3.1
[INFO] [stderr]   Downloaded proc-macro2 v0.4.29
[INFO] [stderr]   Downloaded bigdecimal v0.1.0
[INFO] [stderr]   Downloaded nix v0.13.0
[INFO] [stderr]   Downloaded mortal v0.2.0
[INFO] [stderr]   Downloaded syn v0.15.33
[INFO] [stderr]   Downloaded libc v0.2.53
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f4171703b297a599f693f4ab6f839e92051116152c4aec82db7e3688a7f5b01f
[INFO] running `Command { std: "docker" "start" "-a" "f4171703b297a599f693f4ab6f839e92051116152c4aec82db7e3688a7f5b01f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4171703b297a599f693f4ab6f839e92051116152c4aec82db7e3688a7f5b01f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4171703b297a599f693f4ab6f839e92051116152c4aec82db7e3688a7f5b01f", kill_on_drop: false }`
[INFO] [stdout] f4171703b297a599f693f4ab6f839e92051116152c4aec82db7e3688a7f5b01f
[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=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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 188dad10556eda4da28944a8493c0775548c11668112e8fe24c719df741fa083
[INFO] running `Command { std: "docker" "start" "-a" "188dad10556eda4da28944a8493c0775548c11668112e8fe24c719df741fa083", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling rand_core v0.4.0
[INFO] [stderr]    Compiling libc v0.2.53
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling nix v0.13.0
[INFO] [stderr]     Checking cfg-if v0.1.7
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking unicode-normalization v0.1.8
[INFO] [stderr]     Checking smallstr v0.1.0
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]     Checking bytecount v0.3.2
[INFO] [stderr]     Checking ordermap v0.3.5
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.3
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking nom_locate v0.3.1
[INFO] [stderr]     Checking bigdecimal v0.1.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling terminfo v0.6.1
[INFO] [stderr]     Checking mortal v0.2.0
[INFO] [stderr]     Checking linefeed v0.6.0
[INFO] [stderr]     Checking lion v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `debug`
[INFO] [stdout]    --> src/canonical.rs:62:15
[INFO] [stdout]     |
[INFO] [stdout] 62  |         #[cfg(debug)]
[INFO] [stdout]     |               ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 208 |         unit_invariants_debug!(lhs);
[INFO] [stdout]     |         --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: expected names are: `clippy`, `debug_assertions`, `doc`, `docsrs`, `doctest`, `feature`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `rustfmt`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `ub_checks`, `unix`, and `windows`
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `unit_invariants_debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `debug`
[INFO] [stdout]    --> src/canonical.rs:62:15
[INFO] [stdout]     |
[INFO] [stdout] 62  |         #[cfg(debug)]
[INFO] [stdout]     |               ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 209 |         unit_invariants_debug!(rhs);
[INFO] [stdout]     |         --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `unit_invariants_debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `debug`
[INFO] [stdout]    --> src/canonical.rs:62:15
[INFO] [stdout]     |
[INFO] [stdout] 62  |         #[cfg(debug)]
[INFO] [stdout]     |               ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 208 |         unit_invariants_debug!(lhs);
[INFO] [stdout]     |         --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: expected names are: `clippy`, `debug_assertions`, `doc`, `docsrs`, `doctest`, `feature`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `rustfmt`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `ub_checks`, `unix`, and `windows`
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `unit_invariants_debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `debug`
[INFO] [stdout]    --> src/canonical.rs:62:15
[INFO] [stdout]     |
[INFO] [stdout] 62  |         #[cfg(debug)]
[INFO] [stdout]     |               ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 209 |         unit_invariants_debug!(rhs);
[INFO] [stdout]     |         --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `unit_invariants_debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `end` is never read
[INFO] [stdout]   --> src/unit_graph.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct ConversionPath {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] 23 |     start: CanonicalUnit,
[INFO] [stdout] 24 |     end: CanonicalUnit,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ConversionPath` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `span` is never read
[INFO] [stdout]   --> src/symbols.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Constant {
[INFO] [stdout]    |     -------- field in this variant
[INFO] [stdout] 11 |         value: Number,
[INFO] [stdout] 12 |         span: Span<'a>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SymType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/symbols.rs:14:14
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Function(Function<'a>, Span<'a>),
[INFO] [stdout]    |     -------- ^^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SymType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Function((), ()),
[INFO] [stdout]    |              ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `end` is never read
[INFO] [stdout]   --> src/unit_graph.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct ConversionPath {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] 23 |     start: CanonicalUnit,
[INFO] [stdout] 24 |     end: CanonicalUnit,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ConversionPath` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `span` is never read
[INFO] [stdout]   --> src/symbols.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Constant {
[INFO] [stdout]    |     -------- field in this variant
[INFO] [stdout] 11 |         value: Number,
[INFO] [stdout] 12 |         span: Span<'a>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SymType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/symbols.rs:14:14
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Function(Function<'a>, Span<'a>),
[INFO] [stdout]    |     -------- ^^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SymType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Function((), ()),
[INFO] [stdout]    |              ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::convert::From::from` that must be used
[INFO] [stdout]    --> src/ast.rs:238:9
[INFO] [stdout]     |
[INFO] [stdout] 238 |         UnitName::from("");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 238 |         let _ = UnitName::from("");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::convert::From::from` that must be used
[INFO] [stdout]    --> src/ast.rs:244:9
[INFO] [stdout]     |
[INFO] [stdout] 244 |         UnitName::from("_");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 244 |         let _ = UnitName::from("_");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.52s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v4.2.3, terminfo v0.6.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "188dad10556eda4da28944a8493c0775548c11668112e8fe24c719df741fa083", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "188dad10556eda4da28944a8493c0775548c11668112e8fe24c719df741fa083", kill_on_drop: false }`
[INFO] [stdout] 188dad10556eda4da28944a8493c0775548c11668112e8fe24c719df741fa083
[INFO] checking sunjay/lion against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsunjay%2Flion" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sunjay/lion on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sunjay/lion
[INFO] finished tweaking git repo https://github.com/sunjay/lion
[INFO] tweaked toml for git repo https://github.com/sunjay/lion written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/sunjay/lion 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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 631ce6759fe5e18ac7084c6f7e9f7596a18dcf87b97e831c36932de5a2513416
[INFO] running `Command { std: "docker" "start" "-a" "631ce6759fe5e18ac7084c6f7e9f7596a18dcf87b97e831c36932de5a2513416", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "631ce6759fe5e18ac7084c6f7e9f7596a18dcf87b97e831c36932de5a2513416", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "631ce6759fe5e18ac7084c6f7e9f7596a18dcf87b97e831c36932de5a2513416", kill_on_drop: false }`
[INFO] [stdout] 631ce6759fe5e18ac7084c6f7e9f7596a18dcf87b97e831c36932de5a2513416
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d6d2a6eb4f3d098b63d8394ca3ec4cadb27e14951f144014a69217470cfeee2a
[INFO] running `Command { std: "docker" "start" "-a" "d6d2a6eb4f3d098b63d8394ca3ec4cadb27e14951f144014a69217470cfeee2a", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.4.0
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling libc v0.2.53
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling nix v0.13.0
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking cfg-if v0.1.7
[INFO] [stderr]     Checking smallstr v0.1.0
[INFO] [stderr]     Checking unicode-normalization v0.1.8
[INFO] [stderr]     Checking ordermap v0.3.5
[INFO] [stderr]     Checking bytecount v0.3.2
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.3
[INFO] [stderr]     Checking phf_shared v0.7.24
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking nom_locate v0.3.1
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking bigdecimal v0.1.0
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling terminfo v0.6.1
[INFO] [stderr]     Checking mortal v0.2.0
[INFO] [stderr]     Checking linefeed v0.6.0
[INFO] [stderr]     Checking lion v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `debug`
[INFO] [stdout]    --> src/canonical.rs:62:15
[INFO] [stdout]     |
[INFO] [stdout] 62  |         #[cfg(debug)]
[INFO] [stdout]     |               ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 208 |         unit_invariants_debug!(lhs);
[INFO] [stdout]     |         --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: expected names are: `clippy`, `debug_assertions`, `doc`, `docsrs`, `doctest`, `feature`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `rustfmt`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `ub_checks`, `unix`, and `windows`
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `unit_invariants_debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `debug`
[INFO] [stdout]    --> src/canonical.rs:62:15
[INFO] [stdout]     |
[INFO] [stdout] 62  |         #[cfg(debug)]
[INFO] [stdout]     |               ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 209 |         unit_invariants_debug!(rhs);
[INFO] [stdout]     |         --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `unit_invariants_debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `debug`
[INFO] [stdout]    --> src/canonical.rs:62:15
[INFO] [stdout]     |
[INFO] [stdout] 62  |         #[cfg(debug)]
[INFO] [stdout]     |               ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 208 |         unit_invariants_debug!(lhs);
[INFO] [stdout]     |         --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: expected names are: `clippy`, `debug_assertions`, `doc`, `docsrs`, `doctest`, `feature`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `rustfmt`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `ub_checks`, `unix`, and `windows`
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `unit_invariants_debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `debug`
[INFO] [stdout]    --> src/canonical.rs:62:15
[INFO] [stdout]     |
[INFO] [stdout] 62  |         #[cfg(debug)]
[INFO] [stdout]     |               ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 209 |         unit_invariants_debug!(rhs);
[INFO] [stdout]     |         --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `unit_invariants_debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `end` is never read
[INFO] [stdout]   --> src/unit_graph.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct ConversionPath {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] 23 |     start: CanonicalUnit,
[INFO] [stdout] 24 |     end: CanonicalUnit,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ConversionPath` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `span` is never read
[INFO] [stdout]   --> src/symbols.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Constant {
[INFO] [stdout]    |     -------- field in this variant
[INFO] [stdout] 11 |         value: Number,
[INFO] [stdout] 12 |         span: Span<'a>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SymType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/symbols.rs:14:14
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Function(Function<'a>, Span<'a>),
[INFO] [stdout]    |     -------- ^^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SymType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Function((), ()),
[INFO] [stdout]    |              ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `end` is never read
[INFO] [stdout]   --> src/unit_graph.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct ConversionPath {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] 23 |     start: CanonicalUnit,
[INFO] [stdout] 24 |     end: CanonicalUnit,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ConversionPath` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `span` is never read
[INFO] [stdout]   --> src/symbols.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Constant {
[INFO] [stdout]    |     -------- field in this variant
[INFO] [stdout] 11 |         value: Number,
[INFO] [stdout] 12 |         span: Span<'a>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SymType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/symbols.rs:14:14
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Function(Function<'a>, Span<'a>),
[INFO] [stdout]    |     -------- ^^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SymType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Function((), ()),
[INFO] [stdout]    |              ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::convert::From::from` that must be used
[INFO] [stdout]    --> src/ast.rs:238:9
[INFO] [stdout]     |
[INFO] [stdout] 238 |         UnitName::from("");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 238 |         let _ = UnitName::from("");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::convert::From::from` that must be used
[INFO] [stdout]    --> src/ast.rs:244:9
[INFO] [stdout]     |
[INFO] [stdout] 244 |         UnitName::from("_");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 244 |         let _ = UnitName::from("_");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.40s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v4.2.3, terminfo v0.6.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "d6d2a6eb4f3d098b63d8394ca3ec4cadb27e14951f144014a69217470cfeee2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6d2a6eb4f3d098b63d8394ca3ec4cadb27e14951f144014a69217470cfeee2a", kill_on_drop: false }`
[INFO] [stdout] d6d2a6eb4f3d098b63d8394ca3ec4cadb27e14951f144014a69217470cfeee2a