[INFO] fetching crate mustsubst 0.1.0...
[INFO] extracting crate mustsubst 0.1.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/mustsubst/0.1.0
[INFO] extracting crate mustsubst 0.1.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/mustsubst/0.1.0
[INFO] validating manifest of mustsubst-0.1.0 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 mustsubst-0.1.0 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 mustsubst-0.1.0
[INFO] finished frobbing mustsubst-0.1.0
[INFO] frobbed toml for mustsubst-0.1.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/mustsubst/0.1.0/Cargo.toml
[INFO] started frobbing mustsubst-0.1.0
[INFO] finished frobbing mustsubst-0.1.0
[INFO] frobbed toml for mustsubst-0.1.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/mustsubst/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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] testing mustsubst-0.1.0 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/mustsubst/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] e9bf9a0cdcae8c3912b05ac7b1623638f6f0a4a791acbd4fba5d467281211b99
[INFO] running `"docker" "start" "-a" "e9bf9a0cdcae8c3912b05ac7b1623638f6f0a4a791acbd4fba5d467281211b99"`
[INFO] [stderr]    Compiling structopt v0.2.18
[INFO] [stderr]    Compiling mustache v0.9.0
[INFO] [stderr]    Compiling mustsubst v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:94:59
[INFO] [stderr]    |
[INFO] [stderr] 94 |     pub fn get_file_contents(&self) -> Result<String, Box<Error>> {
[INFO] [stderr]    |                                                           ^^^^^ help: use `dyn`: `dyn Error`
[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/main.rs:105:29
[INFO] [stderr]     |
[INFO] [stderr] 105 | fn main() -> Result<(), Box<Error>> {
[INFO] [stderr]     |                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.08s
[INFO] running `"docker" "inspect" "e9bf9a0cdcae8c3912b05ac7b1623638f6f0a4a791acbd4fba5d467281211b99"`
[INFO] running `"docker" "rm" "-f" "e9bf9a0cdcae8c3912b05ac7b1623638f6f0a4a791acbd4fba5d467281211b99"`
[INFO] [stdout] e9bf9a0cdcae8c3912b05ac7b1623638f6f0a4a791acbd4fba5d467281211b99
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/mustsubst/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] af4084a18fe3a72c621f7981c69d72e783e33ec05fa2c23bfb4470e408c9318c
[INFO] running `"docker" "start" "-a" "af4084a18fe3a72c621f7981c69d72e783e33ec05fa2c23bfb4470e408c9318c"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling escargot v0.4.0
[INFO] [stderr]    Compiling treeline v0.1.0
[INFO] [stderr]    Compiling normalize-line-endings v0.2.2
[INFO] [stderr]    Compiling predicates-core v1.0.0
[INFO] [stderr]    Compiling float-cmp v0.4.0
[INFO] [stderr]    Compiling predicates v1.0.1
[INFO] [stderr]    Compiling predicates-tree v1.0.0
[INFO] [stderr]    Compiling assert_cmd v0.11.1
[INFO] [stderr]    Compiling mustsubst v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> tests/test-cli.rs:6:42
[INFO] [stderr]   |
[INFO] [stderr] 6 | fn file_doesnt_exist() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]   |                                          ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[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]   --> tests/test-cli.rs:18:35
[INFO] [stderr]    |
[INFO] [stderr] 18 | fn parse_file() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/test-cli.rs:32:36
[INFO] [stderr]    |
[INFO] [stderr] 32 | fn parse_stdin() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/test-cli.rs:55:30
[INFO] [stderr]    |
[INFO] [stderr] 55 | fn usage() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:94:59
[INFO] [stderr]    |
[INFO] [stderr] 94 |     pub fn get_file_contents(&self) -> Result<String, Box<Error>> {
[INFO] [stderr]    |                                                           ^^^^^ help: use `dyn`: `dyn Error`
[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/main.rs:105:29
[INFO] [stderr]     |
[INFO] [stderr] 105 | fn main() -> Result<(), Box<Error>> {
[INFO] [stderr]     |                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.38s
[INFO] running `"docker" "inspect" "af4084a18fe3a72c621f7981c69d72e783e33ec05fa2c23bfb4470e408c9318c"`
[INFO] running `"docker" "rm" "-f" "af4084a18fe3a72c621f7981c69d72e783e33ec05fa2c23bfb4470e408c9318c"`
[INFO] [stdout] af4084a18fe3a72c621f7981c69d72e783e33ec05fa2c23bfb4470e408c9318c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/mustsubst/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] bf21ead79b38a1b7f3e3f408fd323ba03833dc977a81be09eb8338c3a6cdb8c4
[INFO] running `"docker" "start" "-a" "bf21ead79b38a1b7f3e3f408fd323ba03833dc977a81be09eb8338c3a6cdb8c4"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/mustsubst-9dc80da3b4a10394
[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/crater/target/debug/deps/test_cli-f531f51c881b14fe
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test file_doesnt_exist ... ok
[INFO] [stdout] test parse_file ... ok
[INFO] [stdout] test usage ... ok
[INFO] [stdout] test parse_stdin ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "bf21ead79b38a1b7f3e3f408fd323ba03833dc977a81be09eb8338c3a6cdb8c4"`
[INFO] running `"docker" "rm" "-f" "bf21ead79b38a1b7f3e3f408fd323ba03833dc977a81be09eb8338c3a6cdb8c4"`
[INFO] [stdout] bf21ead79b38a1b7f3e3f408fd323ba03833dc977a81be09eb8338c3a6cdb8c4