[INFO] crate yj 1.0.1 is already in cache
[INFO] extracting crate yj 1.0.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/yj/1.0.1
[INFO] extracting crate yj 1.0.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/yj/1.0.1
[INFO] validating manifest of yj-1.0.1 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 yj-1.0.1 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 yj-1.0.1
[INFO] finished frobbing yj-1.0.1
[INFO] frobbed toml for yj-1.0.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/yj/1.0.1/Cargo.toml
[INFO] started frobbing yj-1.0.1
[INFO] finished frobbing yj-1.0.1
[INFO] frobbed toml for yj-1.0.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/yj/1.0.1/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 yj-1.0.1 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/yj/1.0.1:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 9f82e021338cbe45c9f84db1aec9d52323bb5afd607207f5e8c7c828c32d9d0b
[INFO] running `"docker" "start" "-a" "9f82e021338cbe45c9f84db1aec9d52323bb5afd607207f5e8c7c828c32d9d0b"`
[INFO] [stderr]    Compiling term_size v0.3.1
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling structopt v0.2.18
[INFO] [stderr]    Compiling yj v1.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:39:25
[INFO] [stderr]    |
[INFO] [stderr] 39 | fn from_json(input: Box<Read>, mut output: Box<Write>, args: &MyArgs) -> Result<(), Error> {
[INFO] [stderr]    |                         ^^^^ help: use `dyn`: `dyn Read`
[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:39:48
[INFO] [stderr]    |
[INFO] [stderr] 39 | fn from_json(input: Box<Read>, mut output: Box<Write>, args: &MyArgs) -> Result<(), Error> {
[INFO] [stderr]    |                                                ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:59:25
[INFO] [stderr]    |
[INFO] [stderr] 59 | fn from_yaml(input: Box<Read>, mut output: Box<Write>, args: &MyArgs) -> Result<(), Error> {
[INFO] [stderr]    |                         ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:59:48
[INFO] [stderr]    |
[INFO] [stderr] 59 | fn from_yaml(input: Box<Read>, mut output: Box<Write>, args: &MyArgs) -> Result<(), Error> {
[INFO] [stderr]    |                                                ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:82:20
[INFO] [stderr]    |
[INFO] [stderr] 82 |     let input: Box<Read> = match &args.input {
[INFO] [stderr]    |                    ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:89:21
[INFO] [stderr]    |
[INFO] [stderr] 89 |     let output: Box<Write> = match &args.output {
[INFO] [stderr]    |                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.23s
[INFO] running `"docker" "inspect" "9f82e021338cbe45c9f84db1aec9d52323bb5afd607207f5e8c7c828c32d9d0b"`
[INFO] running `"docker" "rm" "-f" "9f82e021338cbe45c9f84db1aec9d52323bb5afd607207f5e8c7c828c32d9d0b"`
[INFO] [stdout] 9f82e021338cbe45c9f84db1aec9d52323bb5afd607207f5e8c7c828c32d9d0b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/yj/1.0.1:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] fcbdd459a61f0a678b8042e4ca8018c9e7d708cfa42a395e0f0dc159237a6aae
[INFO] running `"docker" "start" "-a" "fcbdd459a61f0a678b8042e4ca8018c9e7d708cfa42a395e0f0dc159237a6aae"`
[INFO] [stderr]    Compiling yj v1.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:39:25
[INFO] [stderr]    |
[INFO] [stderr] 39 | fn from_json(input: Box<Read>, mut output: Box<Write>, args: &MyArgs) -> Result<(), Error> {
[INFO] [stderr]    |                         ^^^^ help: use `dyn`: `dyn Read`
[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:39:48
[INFO] [stderr]    |
[INFO] [stderr] 39 | fn from_json(input: Box<Read>, mut output: Box<Write>, args: &MyArgs) -> Result<(), Error> {
[INFO] [stderr]    |                                                ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:59:25
[INFO] [stderr]    |
[INFO] [stderr] 59 | fn from_yaml(input: Box<Read>, mut output: Box<Write>, args: &MyArgs) -> Result<(), Error> {
[INFO] [stderr]    |                         ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:59:48
[INFO] [stderr]    |
[INFO] [stderr] 59 | fn from_yaml(input: Box<Read>, mut output: Box<Write>, args: &MyArgs) -> Result<(), Error> {
[INFO] [stderr]    |                                                ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:82:20
[INFO] [stderr]    |
[INFO] [stderr] 82 |     let input: Box<Read> = match &args.input {
[INFO] [stderr]    |                    ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:89:21
[INFO] [stderr]    |
[INFO] [stderr] 89 |     let output: Box<Write> = match &args.output {
[INFO] [stderr]    |                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `"docker" "inspect" "fcbdd459a61f0a678b8042e4ca8018c9e7d708cfa42a395e0f0dc159237a6aae"`
[INFO] running `"docker" "rm" "-f" "fcbdd459a61f0a678b8042e4ca8018c9e7d708cfa42a395e0f0dc159237a6aae"`
[INFO] [stdout] fcbdd459a61f0a678b8042e4ca8018c9e7d708cfa42a395e0f0dc159237a6aae
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/yj/1.0.1:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] bde5d8857de3d7158d776c9e4acb23aaf7b8aa39be1efc1054681ef31f14a62e
[INFO] running `"docker" "start" "-a" "bde5d8857de3d7158d776c9e4acb23aaf7b8aa39be1efc1054681ef31f14a62e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/yj-11c261bacb59c20f
[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" "bde5d8857de3d7158d776c9e4acb23aaf7b8aa39be1efc1054681ef31f14a62e"`
[INFO] running `"docker" "rm" "-f" "bde5d8857de3d7158d776c9e4acb23aaf7b8aa39be1efc1054681ef31f14a62e"`
[INFO] [stdout] bde5d8857de3d7158d776c9e4acb23aaf7b8aa39be1efc1054681ef31f14a62e