[INFO] updating cached repository andrewf/tellurium
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/andrewf/tellurium
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/andrewf/tellurium" "work/ex/beta-1.37-6/sources/1.36.0/gh/andrewf/tellurium"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/andrewf/tellurium'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/andrewf/tellurium" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/andrewf/tellurium"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/andrewf/tellurium'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d66eea978ce531cd94cf951e1e239445484bb406
[INFO] sha for GitHub repo andrewf/tellurium: d66eea978ce531cd94cf951e1e239445484bb406
[INFO] validating manifest of andrewf/tellurium on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of andrewf/tellurium on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing andrewf/tellurium
[INFO] finished frobbing andrewf/tellurium
[INFO] frobbed toml for andrewf/tellurium written to work/ex/beta-1.37-6/sources/1.36.0/gh/andrewf/tellurium/Cargo.toml
[INFO] started frobbing andrewf/tellurium
[INFO] finished frobbing andrewf/tellurium
[INFO] frobbed toml for andrewf/tellurium written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/andrewf/tellurium/Cargo.toml
[INFO] crate andrewf/tellurium already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing andrewf/tellurium against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/andrewf/tellurium:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 0d9d857dda688d1f3f4c2a732149c0fe1f301bb1c1886f410c8b1713e956bf6b
[INFO] running `"docker" "start" "-a" "0d9d857dda688d1f3f4c2a732149c0fe1f301bb1c1886f410c8b1713e956bf6b"`
[INFO] [stderr]    Compiling num-traits v0.1.39
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling thread_local v0.3.4
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]    Compiling regex v0.2.2
[INFO] [stderr]    Compiling num-integer v0.1.34
[INFO] [stderr]    Compiling num-complex v0.1.38
[INFO] [stderr]    Compiling num-bigint v0.1.39
[INFO] [stderr]    Compiling num-iter v0.1.33
[INFO] [stderr]    Compiling num-rational v0.1.38
[INFO] [stderr]    Compiling num v0.1.39
[INFO] [stderr]    Compiling tellurium v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(box_syntax)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/main.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(box_patterns)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/main.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(plugin)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::stdout`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::io::stdout;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `num::BigInt`
[INFO] [stderr]  --> src/flowgraph.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use num::BigInt;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter::repeat`
[INFO] [stderr]  --> src/codegen.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::iter::repeat;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `num::FromPrimitive`
[INFO] [stderr]  --> src/codegen.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use num::FromPrimitive;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `num::BigInt`
[INFO] [stderr]  --> src/codegen.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use num::BigInt;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `flowgraph`
[INFO] [stderr]  --> src/codegen.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use flowgraph;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `parsetree::Statement::*`
[INFO] [stderr]  --> src/typeck.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use parsetree::Statement::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `codegen::IntelPlatform`
[INFO] [stderr]   --> src/main.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 | use codegen::IntelPlatform;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `tellurium`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "0d9d857dda688d1f3f4c2a732149c0fe1f301bb1c1886f410c8b1713e956bf6b"`
[INFO] running `"docker" "rm" "-f" "0d9d857dda688d1f3f4c2a732149c0fe1f301bb1c1886f410c8b1713e956bf6b"`
[INFO] [stdout] 0d9d857dda688d1f3f4c2a732149c0fe1f301bb1c1886f410c8b1713e956bf6b