[INFO] cloning repository https://github.com/SolarLiner/mfc-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SolarLiner/mfc-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSolarLiner%2Fmfc-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSolarLiner%2Fmfc-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b881c1af2661bc9e7b166f0e719bafa90c9076fb
[INFO] testing SolarLiner/mfc-rs against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSolarLiner%2Fmfc-rs" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SolarLiner/mfc-rs on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SolarLiner/mfc-rs
[INFO] finished tweaking git repo https://github.com/SolarLiner/mfc-rs
[INFO] tweaked toml for git repo https://github.com/SolarLiner/mfc-rs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/SolarLiner/mfc-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7c7b66160b05c3a14f37c94d68e59944f9a03c2d6036aa29baf6ae89f2914759
[INFO] running `Command { std: "docker" "start" "-a" "7c7b66160b05c3a14f37c94d68e59944f9a03c2d6036aa29baf6ae89f2914759", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c7b66160b05c3a14f37c94d68e59944f9a03c2d6036aa29baf6ae89f2914759", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c7b66160b05c3a14f37c94d68e59944f9a03c2d6036aa29baf6ae89f2914759", kill_on_drop: false }`
[INFO] [stdout] 7c7b66160b05c3a14f37c94d68e59944f9a03c2d6036aa29baf6ae89f2914759
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e47b0b832fca65e896d6d9737b2a92c65faa6279ee6a0f7c890a497ce68979e6
[INFO] running `Command { std: "docker" "start" "-a" "e47b0b832fca65e896d6d9737b2a92c65faa6279ee6a0f7c890a497ce68979e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling ucd-trie v0.1.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling smallvec v1.2.0
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling anyhow v1.0.26
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling smallvec v0.6.13
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling pest v2.1.2
[INFO] [stderr]    Compiling unicode-normalization v0.1.12
[INFO] [stderr]    Compiling smallstr v0.1.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling backtrace v0.3.44
[INFO] [stderr]    Compiling pest_meta v2.1.2
[INFO] [stderr]    Compiling from-pest v0.3.1
[INFO] [stderr]    Compiling rand v0.6.5
[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]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling pest_generator v2.1.1
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling single v1.0.0
[INFO] [stderr]    Compiling pest-ast v0.3.3
[INFO] [stderr]    Compiling mortal v0.2.1
[INFO] [stderr]    Compiling linefeed v0.6.0
[INFO] [stderr]    Compiling mfc-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `CAst::*`
[INFO] [stdout]    --> src/parse.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 |     use CAst::*;
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Neg`
[INFO] [stdout]   --> src/ast.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     Neg,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Unop` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/ast.rs:28:16
[INFO] [stdout]    |
[INFO] [stdout] 28 | #[derive(Copy, Clone, Debug, Eq, PartialEq)]
[INFO] [stdout]    |                ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `EUnop`
[INFO] [stdout]   --> src/ast.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     EUnop(Unop, BEAst),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `EAst` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/ast.rs:38:10
[INFO] [stdout]    |
[INFO] [stdout] 38 | #[derive(Clone, Debug, Eq, PartialEq)]
[INFO] [stdout]    |          ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `lookup_full`
[INFO] [stdout]   --> src/env.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn lookup_full(&self, x: &str) -> Option<usize> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pop_frame`
[INFO] [stdout]   --> src/env.rs:97:12
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub fn pop_frame(&mut self) -> Option<Frame> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_complete`
[INFO] [stdout]   --> src/parse.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn is_complete(input: &str) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `QUnop`
[INFO] [stdout]   --> src/quads.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     QUnop(Unop, String, String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Quad` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/quads.rs:9:10
[INFO] [stdout]    |
[INFO] [stdout] 9  | #[derive(Clone, Debug, Eq, PartialEq)]
[INFO] [stdout]    |          ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `QSet`
[INFO] [stdout]   --> src/quads.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     QSet(String, String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Quad` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/quads.rs:9:10
[INFO] [stdout]    |
[INFO] [stdout] 9  | #[derive(Clone, Debug, Eq, PartialEq)]
[INFO] [stdout]    |          ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `QLd`
[INFO] [stdout]   --> src/quads.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     QLd(String, String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Quad` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/quads.rs:9:10
[INFO] [stdout]    |
[INFO] [stdout] 9  | #[derive(Clone, Debug, Eq, PartialEq)]
[INFO] [stdout]    |          ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `QPop`
[INFO] [stdout]   --> src/quads.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     QPop(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Quad` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/quads.rs:9:10
[INFO] [stdout]    |
[INFO] [stdout] 9  | #[derive(Clone, Debug, Eq, PartialEq)]
[INFO] [stdout]    |          ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 20s
[INFO] running `Command { std: "docker" "inspect" "e47b0b832fca65e896d6d9737b2a92c65faa6279ee6a0f7c890a497ce68979e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e47b0b832fca65e896d6d9737b2a92c65faa6279ee6a0f7c890a497ce68979e6", kill_on_drop: false }`
[INFO] [stdout] e47b0b832fca65e896d6d9737b2a92c65faa6279ee6a0f7c890a497ce68979e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1f3f75c7e53dda42bfc46fb4d790aed16cae79894f04fcc8e3cf788d7ae1a85c
[INFO] running `Command { std: "docker" "start" "-a" "1f3f75c7e53dda42bfc46fb4d790aed16cae79894f04fcc8e3cf788d7ae1a85c", kill_on_drop: false }`
[INFO] [stderr]    Compiling mfc-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `CAst::*`
[INFO] [stdout]    --> src/parse.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 |     use CAst::*;
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Neg`
[INFO] [stdout]   --> src/ast.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     Neg,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Unop` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/ast.rs:28:16
[INFO] [stdout]    |
[INFO] [stdout] 28 | #[derive(Copy, Clone, Debug, Eq, PartialEq)]
[INFO] [stdout]    |                ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `EUnop`
[INFO] [stdout]   --> src/ast.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     EUnop(Unop, BEAst),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `EAst` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/ast.rs:38:10
[INFO] [stdout]    |
[INFO] [stdout] 38 | #[derive(Clone, Debug, Eq, PartialEq)]
[INFO] [stdout]    |          ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `lookup_full`
[INFO] [stdout]   --> src/env.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn lookup_full(&self, x: &str) -> Option<usize> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pop_frame`
[INFO] [stdout]   --> src/env.rs:97:12
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub fn pop_frame(&mut self) -> Option<Frame> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_complete`
[INFO] [stdout]   --> src/parse.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn is_complete(input: &str) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `QUnop`
[INFO] [stdout]   --> src/quads.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     QUnop(Unop, String, String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Quad` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/quads.rs:9:10
[INFO] [stdout]    |
[INFO] [stdout] 9  | #[derive(Clone, Debug, Eq, PartialEq)]
[INFO] [stdout]    |          ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `QSet`
[INFO] [stdout]   --> src/quads.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     QSet(String, String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Quad` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/quads.rs:9:10
[INFO] [stdout]    |
[INFO] [stdout] 9  | #[derive(Clone, Debug, Eq, PartialEq)]
[INFO] [stdout]    |          ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `QLd`
[INFO] [stdout]   --> src/quads.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     QLd(String, String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Quad` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/quads.rs:9:10
[INFO] [stdout]    |
[INFO] [stdout] 9  | #[derive(Clone, Debug, Eq, PartialEq)]
[INFO] [stdout]    |          ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `QPop`
[INFO] [stdout]   --> src/quads.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     QPop(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Quad` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/quads.rs:9:10
[INFO] [stdout]    |
[INFO] [stdout] 9  | #[derive(Clone, Debug, Eq, PartialEq)]
[INFO] [stdout]    |          ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.04s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/mfc_rs-f56fbabe2995e8b5)
[INFO] running `Command { std: "docker" "inspect" "1f3f75c7e53dda42bfc46fb4d790aed16cae79894f04fcc8e3cf788d7ae1a85c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f3f75c7e53dda42bfc46fb4d790aed16cae79894f04fcc8e3cf788d7ae1a85c", kill_on_drop: false }`
[INFO] [stdout] 1f3f75c7e53dda42bfc46fb4d790aed16cae79894f04fcc8e3cf788d7ae1a85c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ee3d624ed8c87138185d50c782990e34b4e0a89459d9eaa8ffbe6749ef1b4691
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ee3d624ed8c87138185d50c782990e34b4e0a89459d9eaa8ffbe6749ef1b4691", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `CAst::*`
[INFO] [stderr]    --> src/parse.rs:152:9
[INFO] [stderr]     |
[INFO] [stderr] 152 |     use CAst::*;
[INFO] [stderr]     |         ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Neg`
[INFO] [stderr]   --> src/ast.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     Neg,
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `Unop` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/ast.rs:28:16
[INFO] [stderr]    |
[INFO] [stderr] 28 | #[derive(Copy, Clone, Debug, Eq, PartialEq)]
[INFO] [stderr]    |                ^^^^^  ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `EUnop`
[INFO] [stderr]   --> src/ast.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     EUnop(Unop, BEAst),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `EAst` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/ast.rs:38:10
[INFO] [stderr]    |
[INFO] [stderr] 38 | #[derive(Clone, Debug, Eq, PartialEq)]
[INFO] [stderr]    |          ^^^^^  ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `lookup_full`
[INFO] [stderr]   --> src/env.rs:63:12
[INFO] [stderr]    |
[INFO] [stderr] 63 |     pub fn lookup_full(&self, x: &str) -> Option<usize> {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `pop_frame`
[INFO] [stderr]   --> src/env.rs:97:12
[INFO] [stderr]    |
[INFO] [stderr] 97 |     pub fn pop_frame(&mut self) -> Option<Frame> {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_complete`
[INFO] [stderr]   --> src/parse.rs:30:8
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub fn is_complete(input: &str) -> bool {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `QUnop`
[INFO] [stderr]   --> src/quads.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     QUnop(Unop, String, String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `Quad` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/quads.rs:9:10
[INFO] [stderr]    |
[INFO] [stderr] 9  | #[derive(Clone, Debug, Eq, PartialEq)]
[INFO] [stderr]    |          ^^^^^  ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `QSet`
[INFO] [stderr]   --> src/quads.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     QSet(String, String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `Quad` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/quads.rs:9:10
[INFO] [stderr]    |
[INFO] [stderr] 9  | #[derive(Clone, Debug, Eq, PartialEq)]
[INFO] [stderr]    |          ^^^^^  ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `QLd`
[INFO] [stderr]   --> src/quads.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     QLd(String, String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `Quad` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/quads.rs:9:10
[INFO] [stderr]    |
[INFO] [stderr] 9  | #[derive(Clone, Debug, Eq, PartialEq)]
[INFO] [stderr]    |          ^^^^^  ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `QPop`
[INFO] [stderr]   --> src/quads.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     QPop(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `Quad` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/quads.rs:9:10
[INFO] [stderr]    |
[INFO] [stderr] 9  | #[derive(Clone, Debug, Eq, PartialEq)]
[INFO] [stderr]    |          ^^^^^  ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `mfc-rs` (bin "mfc-rs" test) generated 10 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/mfc_rs-f56fbabe2995e8b5)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ee3d624ed8c87138185d50c782990e34b4e0a89459d9eaa8ffbe6749ef1b4691", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee3d624ed8c87138185d50c782990e34b4e0a89459d9eaa8ffbe6749ef1b4691", kill_on_drop: false }`
[INFO] [stdout] ee3d624ed8c87138185d50c782990e34b4e0a89459d9eaa8ffbe6749ef1b4691