[INFO] updating cached repository https://github.com/Michael0x2a/impo
[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] 8a49d12d09be2b0e4f97419d7165a8a79dd845cd
[INFO] testing Michael0x2a/impo against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichael0x2a%2Fimpo" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Michael0x2a/impo on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Michael0x2a/impo
[INFO] finished tweaking git repo https://github.com/Michael0x2a/impo
[INFO] tweaked toml for git repo https://github.com/Michael0x2a/impo written to work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/Michael0x2a/impo already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/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" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] da67a51fc802e1056e8a098760e0784dcae18ce2490a5a251091b7e1a8e257d5
[INFO] running `"docker" "start" "-a" "da67a51fc802e1056e8a098760e0784dcae18ce2490a5a251091b7e1a8e257d5"`
[INFO] [stderr]    Compiling snowflake v1.3.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.21
[INFO] [stderr]    Compiling backtrace v0.3.8
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stderr]    Compiling impo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/typecheck/infer.rs:131:45
[INFO] [stderr]     |
[INFO] [stderr] 131 | fn is_one_of(typ: ImpoType, matchers: &Vec<&Fn(ImpoType) -> bool>) -> bool
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(ImpoType) -> bool`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/interpreter/interpreter.rs:21:23
[INFO] [stderr]    |
[INFO] [stderr] 21 |              int_op: &Fn(i64, i64) -> i64,
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(i64, i64) -> i64`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/interpreter/interpreter.rs:22:25
[INFO] [stderr]    |
[INFO] [stderr] 22 |              float_op: &Fn(f64, f64) -> f64) -> Result<Value, ImpoError> {
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64, f64) -> f64`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ast/typed.rs:29:15
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pool: &'a ReadOnlyStringPool,
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ReadOnlyStringPool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ast/typed.rs:33:26
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn new(pool: &'a ReadOnlyStringPool) -> TypedNodeToStrVisitor<'a> {
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ReadOnlyStringPool`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.20s
[INFO] running `"docker" "inspect" "da67a51fc802e1056e8a098760e0784dcae18ce2490a5a251091b7e1a8e257d5"`
[INFO] running `"docker" "rm" "-f" "da67a51fc802e1056e8a098760e0784dcae18ce2490a5a251091b7e1a8e257d5"`
[INFO] [stdout] da67a51fc802e1056e8a098760e0784dcae18ce2490a5a251091b7e1a8e257d5
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/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" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] b637b5f7078fc9059fd4fdd80e9b4c1be49e596ad4bfb81ac3d3a97c8e2ed244
[INFO] running `"docker" "start" "-a" "b637b5f7078fc9059fd4fdd80e9b4c1be49e596ad4bfb81ac3d3a97c8e2ed244"`
[INFO] [stderr]    Compiling impo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/typecheck/infer.rs:131:45
[INFO] [stderr]     |
[INFO] [stderr] 131 | fn is_one_of(typ: ImpoType, matchers: &Vec<&Fn(ImpoType) -> bool>) -> bool
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(ImpoType) -> bool`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/interpreter/interpreter.rs:21:23
[INFO] [stderr]    |
[INFO] [stderr] 21 |              int_op: &Fn(i64, i64) -> i64,
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(i64, i64) -> i64`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/interpreter/interpreter.rs:22:25
[INFO] [stderr]    |
[INFO] [stderr] 22 |              float_op: &Fn(f64, f64) -> f64) -> Result<Value, ImpoError> {
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64, f64) -> f64`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ast/typed.rs:29:15
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pool: &'a ReadOnlyStringPool,
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ReadOnlyStringPool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ast/typed.rs:33:26
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn new(pool: &'a ReadOnlyStringPool) -> TypedNodeToStrVisitor<'a> {
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ReadOnlyStringPool`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `"docker" "inspect" "b637b5f7078fc9059fd4fdd80e9b4c1be49e596ad4bfb81ac3d3a97c8e2ed244"`
[INFO] running `"docker" "rm" "-f" "b637b5f7078fc9059fd4fdd80e9b4c1be49e596ad4bfb81ac3d3a97c8e2ed244"`
[INFO] [stdout] b637b5f7078fc9059fd4fdd80e9b4c1be49e596ad4bfb81ac3d3a97c8e2ed244
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/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" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] 078941a58d8f1c77192c889082ebd7110e13be14499f5971416685504d34dd71
[INFO] running `"docker" "start" "-a" "078941a58d8f1c77192c889082ebd7110e13be14499f5971416685504d34dd71"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/impo-94cf4576e718c190
[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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/impo-f02f0ce4bbd26422
[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
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests impo
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "078941a58d8f1c77192c889082ebd7110e13be14499f5971416685504d34dd71"`
[INFO] running `"docker" "rm" "-f" "078941a58d8f1c77192c889082ebd7110e13be14499f5971416685504d34dd71"`
[INFO] [stdout] 078941a58d8f1c77192c889082ebd7110e13be14499f5971416685504d34dd71