[INFO] updating cached repository https://github.com/nikomatsakis/rusty-wam
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ec9b0daa9ee159dc136c905322df912c9a035678
[INFO] testing nikomatsakis/rusty-wam against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnikomatsakis%2Frusty-wam" "work/builds/worker-1/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nikomatsakis/rusty-wam on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/nikomatsakis/rusty-wam
[INFO] removed path dependency lalrpop-intern from git repo https://github.com/nikomatsakis/rusty-wam
[INFO] finished tweaking git repo https://github.com/nikomatsakis/rusty-wam
[INFO] tweaked toml for git repo https://github.com/nikomatsakis/rusty-wam written to work/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/nikomatsakis/rusty-wam already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /big/crater/work/builds/worker-1/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 53aab355676e6cfe930e8765c28649100a7de2fa48e88d30c6b4b5dd0b399ebe
[INFO] running `"docker" "start" "-a" "53aab355676e6cfe930e8765c28649100a7de2fa48e88d30c6b4b5dd0b399ebe"`
[INFO] [stderr] warning: dependency (lalrpop-intern) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling lalrpop-intern v0.15.1
[INFO] [stderr]    Compiling wam-tutorial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/ast/mod.rs:42:1
[INFO] [stderr]    |
[INFO] [stderr] 42 | / macro_rules! term {
[INFO] [stderr] 43 | |     ($($args:tt)*) => {
[INFO] [stderr] 44 | |         {
[INFO] [stderr] 45 | |             let (term, ()) = terms_tt!($($args,)*,,);
[INFO] [stderr] ...  |
[INFO] [stderr] 48 | |     }
[INFO] [stderr] 49 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/ast/mod.rs:51:1
[INFO] [stderr]    |
[INFO] [stderr] 51 | / macro_rules! structure {
[INFO] [stderr] 52 | |     ($($args:tt)*) => {
[INFO] [stderr] 53 | |         match terms_tt!($($args,)*,,) {
[INFO] [stderr] 54 | |             ($crate::ast::Term::Structure(s), ()) => s,
[INFO] [stderr] ...  |
[INFO] [stderr] 57 | |     }
[INFO] [stderr] 58 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]    --> src/ast/mod.rs:60:1
[INFO] [stderr]     |
[INFO] [stderr] 60  | / macro_rules! terms_tt {
[INFO] [stderr] 61  | |     () => {
[INFO] [stderr] 62  | |         ()
[INFO] [stderr] 63  | |     };
[INFO] [stderr] ...   |
[INFO] [stderr] 99  | |     };
[INFO] [stderr] 100 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/functor.rs:25:1
[INFO] [stderr]    |
[INFO] [stderr] 25 | / macro_rules! functor {
[INFO] [stderr] 26 | |     ($x:ident / $n:expr) => {
[INFO] [stderr] 27 | |         $crate::functor::Functor::new(
[INFO] [stderr] 28 | |             $crate::intern::intern(stringify!($x)),
[INFO] [stderr] 29 | |             $n)
[INFO] [stderr] 30 | |     }
[INFO] [stderr] 31 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] error[E0601]: `main` function not found in crate `wam_tutorial`
[INFO] [stderr]   |
[INFO] [stderr]   = note: consider adding a `main` function to `src/main.rs`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0601`.
[INFO] [stderr] error: Could not compile `wam-tutorial`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "53aab355676e6cfe930e8765c28649100a7de2fa48e88d30c6b4b5dd0b399ebe"`
[INFO] running `"docker" "rm" "-f" "53aab355676e6cfe930e8765c28649100a7de2fa48e88d30c6b4b5dd0b399ebe"`
[INFO] [stdout] 53aab355676e6cfe930e8765c28649100a7de2fa48e88d30c6b4b5dd0b399ebe