[INFO] crate syn-codegen 0.1.0 is already in cache
[INFO] extracting crate syn-codegen 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/syn-codegen/0.1.0
[INFO] extracting crate syn-codegen 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/syn-codegen/0.1.0
[INFO] validating manifest of syn-codegen-0.1.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of syn-codegen-0.1.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing syn-codegen-0.1.0
[INFO] finished frobbing syn-codegen-0.1.0
[INFO] frobbed toml for syn-codegen-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/syn-codegen/0.1.0/Cargo.toml
[INFO] started frobbing syn-codegen-0.1.0
[INFO] finished frobbing syn-codegen-0.1.0
[INFO] frobbed toml for syn-codegen-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/syn-codegen/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing syn-codegen-0.1.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/syn-codegen/0.1.0:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 86b07e62eb840ec66c1028c3dba8da55e912a935cd9efef2f74c8f3340810811
[INFO] running `"docker" "start" "-a" "86b07e62eb840ec66c1028c3dba8da55e912a935cd9efef2f74c8f3340810811"`
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling syn-codegen v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.17s
[INFO] running `"docker" "inspect" "86b07e62eb840ec66c1028c3dba8da55e912a935cd9efef2f74c8f3340810811"`
[INFO] running `"docker" "rm" "-f" "86b07e62eb840ec66c1028c3dba8da55e912a935cd9efef2f74c8f3340810811"`
[INFO] [stdout] 86b07e62eb840ec66c1028c3dba8da55e912a935cd9efef2f74c8f3340810811
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/syn-codegen/0.1.0:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 95912655658f1dcbc3d702eb6df389064828aba5aa29257114e327123e08c02d
[INFO] running `"docker" "start" "-a" "95912655658f1dcbc3d702eb6df389064828aba5aa29257114e327123e08c02d"`
[INFO] [stderr]    Compiling syn-codegen v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `"docker" "inspect" "95912655658f1dcbc3d702eb6df389064828aba5aa29257114e327123e08c02d"`
[INFO] running `"docker" "rm" "-f" "95912655658f1dcbc3d702eb6df389064828aba5aa29257114e327123e08c02d"`
[INFO] [stdout] 95912655658f1dcbc3d702eb6df389064828aba5aa29257114e327123e08c02d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/syn-codegen/0.1.0:/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 8a3df070a9e12e05fc44605cc146b3c5b7b7dd2016bb78a53d5e1ec5a68d54b0
[INFO] running `"docker" "start" "-a" "8a3df070a9e12e05fc44605cc146b3c5b7b7dd2016bb78a53d5e1ec5a68d54b0"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/syn_codegen-30d78a681a6e54b7
[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 syn-codegen
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 30) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs -  (line 30) stdout ----
[INFO] [stdout] error: couldn't read src/../../syn.json: No such file or directory (os error 2)
[INFO] [stdout]  --> src/lib.rs:36:19
[INFO] [stdout]   |
[INFO] [stdout] 8 | const SYN: &str = include_str!("../../syn.json");
[INFO] [stdout]   |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs -  (line 30)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `"docker" "inspect" "8a3df070a9e12e05fc44605cc146b3c5b7b7dd2016bb78a53d5e1ec5a68d54b0"`
[INFO] running `"docker" "rm" "-f" "8a3df070a9e12e05fc44605cc146b3c5b7b7dd2016bb78a53d5e1ec5a68d54b0"`
[INFO] [stdout] 8a3df070a9e12e05fc44605cc146b3c5b7b7dd2016bb78a53d5e1ec5a68d54b0