[INFO] cloning repository dante-signal31/steganer
[INFO] running `"git" "clone" "--bare" "git://github.com/dante-signal31/steganer.git" "work/cache/sources/gh/dante-signal31/steganer"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/dante-signal31/steganer'...
[INFO] running `"git" "clone" "work/cache/sources/gh/dante-signal31/steganer" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/dante-signal31/steganer"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/dante-signal31/steganer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dante-signal31/steganer" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/dante-signal31/steganer"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/dante-signal31/steganer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 77986291f0d22b66f5a6ce96f2e235936d7ecd92
[INFO] sha for GitHub repo dante-signal31/steganer: 77986291f0d22b66f5a6ce96f2e235936d7ecd92
[INFO] validating manifest of dante-signal31/steganer on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of dante-signal31/steganer on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing dante-signal31/steganer
[INFO] finished frobbing dante-signal31/steganer
[INFO] frobbed toml for dante-signal31/steganer written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/dante-signal31/steganer/Cargo.toml
[INFO] started frobbing dante-signal31/steganer
[INFO] finished frobbing dante-signal31/steganer
[INFO] frobbed toml for dante-signal31/steganer written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/dante-signal31/steganer/Cargo.toml
[INFO] crate dante-signal31/steganer already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded test_common v1.0.1
[INFO] [stderr]   Downloaded pyo3-pack v0.6.1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking dante-signal31/steganer against try#8f81d0bf6baf07b92f1246696722485c4ca0b049 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-2/try#8f81d0bf6baf07b92f1246696722485c4ca0b049:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/dante-signal31/steganer:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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=forbid" "-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" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 439177697c0ce15952f09d15bf9465e1f1bd5dddf5df4201d36da613bf2d6576
[INFO] running `"docker" "start" "-a" "439177697c0ce15952f09d15bf9465e1f1bd5dddf5df4201d36da613bf2d6576"`
[INFO] [stderr]    Compiling syn v0.15.37
[INFO] [stderr]    Compiling cbindgen v0.8.7
[INFO] [stderr]     Checking target_info v0.1.0
[INFO] [stderr]     Checking tokio-trace-core v0.2.0
[INFO] [stderr]     Checking tokio-executor v0.1.7
[INFO] [stderr]     Checking want v0.0.6
[INFO] [stderr]     Checking rand_os v0.1.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking clicolors-control v1.0.0
[INFO] [stderr]     Checking ring v0.14.6
[INFO] [stderr]     Checking backtrace-sys v0.1.28
[INFO] [stderr]     Checking bzip2-sys v0.1.7
[INFO] [stderr]     Checking libflate v0.1.23
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking tokio-current-thread v0.1.6
[INFO] [stderr]     Checking tokio-timer v0.2.11
[INFO] [stderr]     Checking backtrace v0.3.15
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking regex v1.1.7
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking miniz_oxide_c_api v0.2.1
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]     Checking error-chain v0.12.1
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking string v0.2.0
[INFO] [stderr]     Checking http v0.1.17
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking flate2 v1.0.9
[INFO] [stderr]     Checking zip v0.5.2
[INFO] [stderr]     Checking sct v0.5.0
[INFO] [stderr]     Checking webpki v0.19.1
[INFO] [stderr]     Checking rayon v1.0.3
[INFO] [stderr]     Checking publicsuffix v1.5.2
[INFO] [stderr]     Checking env_logger v0.6.1
[INFO] [stderr]     Checking ct-logs v0.5.1
[INFO] [stderr]     Checking rustls v0.15.2
[INFO] [stderr]     Checking webpki-roots v0.16.0
[INFO] [stderr]     Checking pretty_env_logger v0.3.0
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]     Checking h2 v0.1.24
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking tokio-rustls v0.9.3
[INFO] [stderr]    Compiling pyo3 v0.7.0
[INFO] [stderr]    Compiling serde_derive v1.0.92
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling ghost v0.1.0
[INFO] [stderr]    Compiling num-derive v0.2.4
[INFO] [stderr]    Compiling pyo3-derive-backend v0.7.0
[INFO] [stderr]    Compiling scroll_derive v0.9.5
[INFO] [stderr]    Compiling ctor v0.1.9
[INFO] [stderr]    Compiling inventory-impl v0.1.3
[INFO] [stderr]    Compiling structopt-derive v0.2.16
[INFO] [stderr]     Checking inventory v0.1.3
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling pyo3cls v0.7.0
[INFO] [stderr]     Checking structopt v0.2.16
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking image v0.21.1
[INFO] [stderr]    Compiling serde v1.0.92
[INFO] [stderr]     Checking steganer v1.0.1 (/opt/crater/workdir)
[INFO] [stderr] error: unknown macro variable `emeta`
[INFO] [stderr]   --> <::error_chain::impl_error_chain_kind::impl_error_chain_kind macros>:54:13
[INFO] [stderr]    |
[INFO] [stderr] 54 | $ ( $ ( # [ $ emeta ] ) * => $ eitem $ ( ( $ ( $ etyp ) , * ) ) * ) * $ (
[INFO] [stderr]    |             ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(meta_variable_misuse)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: unknown macro variable `eitem`
[INFO] [stderr]   --> <::error_chain::impl_error_chain_kind::impl_error_chain_kind macros>:54:30
[INFO] [stderr]    |
[INFO] [stderr] 54 | $ ( $ ( # [ $ emeta ] ) * => $ eitem $ ( ( $ ( $ etyp ) , * ) ) * ) * $ (
[INFO] [stderr]    |                              ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unknown macro variable `etyp`
[INFO] [stderr]   --> <::error_chain::impl_error_chain_kind::impl_error_chain_kind macros>:54:48
[INFO] [stderr]    |
[INFO] [stderr] 54 | $ ( $ ( # [ $ emeta ] ) * => $ eitem $ ( ( $ ( $ etyp ) , * ) ) * ) * $ (
[INFO] [stderr]    |                                                ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: meta-variable repeats with different Kleene operator
[INFO] [stderr]   --> <::error_chain::impl_error_chain_kind::impl_error_chain_kind macros>:71:48
[INFO] [stderr]    |
[INFO] [stderr] 65 | ( $ ( $ qvar : ident : $ qtyp : ty ) , + ) $ ( $ tail : tt ) * ] ) => {
[INFO] [stderr]    |                                        - expected repetition
[INFO] [stderr] ...
[INFO] [stderr] 71 | $ ( # [ $ bmeta ] ) * => $ bitem : TUPLE [ $ ( $ qvar : $ qtyp ) , * ] ] queue
[INFO] [stderr]    |                                                ^^^^^^              - conflicting repetition
[INFO] [stderr] 
[INFO] [stderr] error: meta-variable repeats with different Kleene operator
[INFO] [stderr]   --> <::error_chain::impl_error_chain_kind::impl_error_chain_kind macros>:71:57
[INFO] [stderr]    |
[INFO] [stderr] 65 | ( $ ( $ qvar : ident : $ qtyp : ty ) , + ) $ ( $ tail : tt ) * ] ) => {
[INFO] [stderr]    |                                        - expected repetition
[INFO] [stderr] ...
[INFO] [stderr] 71 | $ ( # [ $ bmeta ] ) * => $ bitem : TUPLE [ $ ( $ qvar : $ qtyp ) , * ] ] queue
[INFO] [stderr]    |                                                         ^^^^^^     - conflicting repetition
[INFO] [stderr] 
[INFO] [stderr] error: meta-variable repeats with different Kleene operator
[INFO] [stderr]   --> <::error_chain::impl_error_chain_kind::impl_error_chain_kind macros>:84:49
[INFO] [stderr]    |
[INFO] [stderr] 78 | { $ ( $ qvar : ident : $ qtyp : ty ) , + } $ ( $ tail : tt ) * ] ) => {
[INFO] [stderr]    |                                        - expected repetition
[INFO] [stderr] ...
[INFO] [stderr] 84 | $ ( # [ $ bmeta ] ) * => $ bitem : STRUCT [ $ ( $ qvar : $ qtyp ) , * ] ]
[INFO] [stderr]    |                                                 ^^^^^^              - conflicting repetition
[INFO] [stderr] 
[INFO] [stderr] error: meta-variable repeats with different Kleene operator
[INFO] [stderr]   --> <::error_chain::impl_error_chain_kind::impl_error_chain_kind macros>:84:58
[INFO] [stderr]    |
[INFO] [stderr] 78 | { $ ( $ qvar : ident : $ qtyp : ty ) , + } $ ( $ tail : tt ) * ] ) => {
[INFO] [stderr]    |                                        - expected repetition
[INFO] [stderr] ...
[INFO] [stderr] 84 | $ ( # [ $ bmeta ] ) * => $ bitem : STRUCT [ $ ( $ qvar : $ qtyp ) , * ] ]
[INFO] [stderr]    |                                                          ^^^^^^     - conflicting repetition
[INFO] [stderr] 
[INFO] [stderr] error: meta-variable repeats with different Kleene operator
[INFO] [stderr]   --> <::error_chain::impl_error_chain_kind::impl_error_chain_kind macros>:97:49
[INFO] [stderr]    |
[INFO] [stderr] 91 | { $ ( $ qvar : ident : $ qtyp : ty ) , + , } $ ( $ tail : tt ) * ] ) => {
[INFO] [stderr]    |                                        - expected repetition
[INFO] [stderr] ...
[INFO] [stderr] 97 | $ ( # [ $ bmeta ] ) * => $ bitem : STRUCT [ $ ( $ qvar : $ qtyp ) , * ] ]
[INFO] [stderr]    |                                                 ^^^^^^              - conflicting repetition
[INFO] [stderr] 
[INFO] [stderr] error: meta-variable repeats with different Kleene operator
[INFO] [stderr]   --> <::error_chain::impl_error_chain_kind::impl_error_chain_kind macros>:97:58
[INFO] [stderr]    |
[INFO] [stderr] 91 | { $ ( $ qvar : ident : $ qtyp : ty ) , + , } $ ( $ tail : tt ) * ] ) => {
[INFO] [stderr]    |                                        - expected repetition
[INFO] [stderr] ...
[INFO] [stderr] 97 | $ ( # [ $ bmeta ] ) * => $ bitem : STRUCT [ $ ( $ qvar : $ qtyp ) , * ] ]
[INFO] [stderr]    |                                                          ^^^^^^     - conflicting repetition
[INFO] [stderr] 
[INFO] [stderr] error: meta-variable repeats with different Kleene operator
[INFO] [stderr]    --> <::error_chain::impl_error_chain_kind::impl_error_chain_kind macros>:146:41
[INFO] [stderr]     |
[INFO] [stderr] 142 | $ ( ( $ ( $ ttyp : ty ) , + ) ) * ) {
[INFO] [stderr]     |                           - expected repetition
[INFO] [stderr] ...
[INFO] [stderr] 146 | $ ( # [ $ imeta ] ) * $ iitem $ ( ( $ ( $ ttyp ) , * ) ) * $ (
[INFO] [stderr]     |                                         ^^^^^^     - conflicting repetition
[INFO] [stderr] 
[INFO] [stderr] error: meta-variable repeats with different Kleene operator
[INFO] [stderr]    --> <::error_chain::impl_error_chain_kind::impl_error_chain_kind macros>:174:7
[INFO] [stderr]     |
[INFO] [stderr] 168 | $ ( $ qvar : ident : $ qtyp : ty ) , + ] $ ( $ queue : tt ) * ] ) => {
[INFO] [stderr]     |                                      - expected repetition
[INFO] [stderr] ...
[INFO] [stderr] 174 | ( $ ( $ qtyp ) , * ) ) {  } ] queue [ $ ( $ queue ) * ] ) ; } ; (
[INFO] [stderr]     |       ^^^^^^     - conflicting repetition
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::PathBuf`
[INFO] [stderr]   --> src/fileio.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 | use std::path::PathBuf;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 11 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `steganer`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "439177697c0ce15952f09d15bf9465e1f1bd5dddf5df4201d36da613bf2d6576"`
[INFO] running `"docker" "rm" "-f" "439177697c0ce15952f09d15bf9465e1f1bd5dddf5df4201d36da613bf2d6576"`
[INFO] [stdout] 439177697c0ce15952f09d15bf9465e1f1bd5dddf5df4201d36da613bf2d6576