[INFO] updating cached repository https://github.com/MichaelObvious/opsc
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/MichaelObvious/opsc
[INFO] [stderr]    3ac15d0..93db5a0  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 93db5a01212fa6bde4f28ea678c319dd567c0e48
[INFO] checking MichaelObvious/opsc against master#eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc for pr-69560
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichaelObvious%2Fopsc" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MichaelObvious/opsc on toolchain eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/MichaelObvious/opsc
[INFO] finished tweaking git repo https://github.com/MichaelObvious/opsc
[INFO] tweaked toml for git repo https://github.com/MichaelObvious/opsc written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/MichaelObvious/opsc already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a8d87996f395b68fc253d61c7ae6c11efb7702e8ec4f7d5c4809ea7dbd6631c6
[INFO] running `"docker" "start" "-a" "a8d87996f395b68fc253d61c7ae6c11efb7702e8ec4f7d5c4809ea7dbd6631c6"`
[INFO] [stderr]     Checking opsc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `elems`
[INFO] [stderr]   --> src/parser/parser.rs:86:35
[INFO] [stderr]    |
[INFO] [stderr] 86 |                 Expression::Tuple(elems) => Expression::Type(Box::new(Type::Tuple(vec![]))),
[INFO] [stderr]    |                                   ^^^^^ help: consider prefixing with an underscore: `_elems`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `None`
[INFO] [stderr]   --> src/ast/ast.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     None,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Import`
[INFO] [stderr]   --> src/ast/ast.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     Import(Vec<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Main`
[INFO] [stderr]   --> src/ast/ast.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     Main(Vec<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Set`
[INFO] [stderr]   --> src/ast/ast.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     Set(Vec<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SetRange`
[INFO] [stderr]   --> src/ast/ast.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     SetRange(Box<Expression>, Option<Box<Expression>>, Option<Box<Expression>>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SetComprehension`
[INFO] [stderr]   --> src/ast/ast.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     SetComprehension(Box<Expression>, Box<Expression>, Box<Expression>, Option<Box<Expression>>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Where`
[INFO] [stderr]   --> src/ast/ast.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 51 |     Where(Box<Expression>, Vec<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignLike`
[INFO] [stderr]   --> src/ast/ast.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     AssignLike(Box<Expression>, Box<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Return`
[INFO] [stderr]   --> src/ast/ast.rs:57:5
[INFO] [stderr]    |
[INFO] [stderr] 57 |     Return(Option<Box<Expression>>, Option<Box<Expression>>, Box<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Where`
[INFO] [stderr]   --> src/ast/operators.rs:76:11
[INFO] [stderr]    |
[INFO] [stderr] 76 |     Pass, Where,
[INFO] [stderr]    |           ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Set`
[INFO] [stderr]   --> src/ast/types.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Set(Box<Type>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `elems`
[INFO] [stderr]   --> src/parser/parser.rs:86:35
[INFO] [stderr]    |
[INFO] [stderr] 86 |                 Expression::Tuple(elems) => Expression::Type(Box::new(Type::Tuple(vec![]))),
[INFO] [stderr]    |                                   ^^^^^ help: consider prefixing with an underscore: `_elems`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `None`
[INFO] [stderr]   --> src/ast/ast.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     None,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Import`
[INFO] [stderr]   --> src/ast/ast.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     Import(Vec<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Main`
[INFO] [stderr]   --> src/ast/ast.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     Main(Vec<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Set`
[INFO] [stderr]   --> src/ast/ast.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     Set(Vec<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SetRange`
[INFO] [stderr]   --> src/ast/ast.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     SetRange(Box<Expression>, Option<Box<Expression>>, Option<Box<Expression>>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SetComprehension`
[INFO] [stderr]   --> src/ast/ast.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     SetComprehension(Box<Expression>, Box<Expression>, Box<Expression>, Option<Box<Expression>>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Where`
[INFO] [stderr]   --> src/ast/ast.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 51 |     Where(Box<Expression>, Vec<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignLike`
[INFO] [stderr]   --> src/ast/ast.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     AssignLike(Box<Expression>, Box<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Return`
[INFO] [stderr]   --> src/ast/ast.rs:57:5
[INFO] [stderr]    |
[INFO] [stderr] 57 |     Return(Option<Box<Expression>>, Option<Box<Expression>>, Box<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Where`
[INFO] [stderr]   --> src/ast/operators.rs:76:11
[INFO] [stderr]    |
[INFO] [stderr] 76 |     Pass, Where,
[INFO] [stderr]    |           ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Set`
[INFO] [stderr]   --> src/ast/types.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Set(Box<Type>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `"docker" "inspect" "a8d87996f395b68fc253d61c7ae6c11efb7702e8ec4f7d5c4809ea7dbd6631c6"`
[INFO] running `"docker" "rm" "-f" "a8d87996f395b68fc253d61c7ae6c11efb7702e8ec4f7d5c4809ea7dbd6631c6"`
[INFO] [stdout] a8d87996f395b68fc253d61c7ae6c11efb7702e8ec4f7d5c4809ea7dbd6631c6