[INFO] updating cached repository bruceadams/yj
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/bruceadams/yj
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/bruceadams/yj" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/bruceadams/yj"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/bruceadams/yj'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/bruceadams/yj" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/bruceadams/yj"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/bruceadams/yj'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2ea2316766ad31262cf1d3543ed1790a3ddf8f41
[INFO] sha for GitHub repo bruceadams/yj: 2ea2316766ad31262cf1d3543ed1790a3ddf8f41
[INFO] validating manifest of bruceadams/yj on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of bruceadams/yj on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing bruceadams/yj
[INFO] finished frobbing bruceadams/yj
[INFO] frobbed toml for bruceadams/yj written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/bruceadams/yj/Cargo.toml
[INFO] started frobbing bruceadams/yj
[INFO] finished frobbing bruceadams/yj
[INFO] frobbed toml for bruceadams/yj written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/bruceadams/yj/Cargo.toml
[INFO] crate bruceadams/yj already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking bruceadams/yj against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-3/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/bruceadams/yj:/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=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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d2e7ecaf9e1e0d45e5e5b1c069eaa58a6478fa83f4974c6bb3877dabc44bf53d
[INFO] running `"docker" "start" "-a" "d2e7ecaf9e1e0d45e5e5b1c069eaa58a6478fa83f4974c6bb3877dabc44bf53d"`
[INFO] [stderr]     Checking term_size v0.3.1
[INFO] [stderr]     Checking serde_json v1.0.35
[INFO] [stderr]    Compiling syn v0.15.24
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling structopt-derive v0.2.14
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking structopt v0.2.14
[INFO] [stderr]     Checking 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] 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 30.25s
[INFO] running `"docker" "inspect" "d2e7ecaf9e1e0d45e5e5b1c069eaa58a6478fa83f4974c6bb3877dabc44bf53d"`
[INFO] running `"docker" "rm" "-f" "d2e7ecaf9e1e0d45e5e5b1c069eaa58a6478fa83f4974c6bb3877dabc44bf53d"`
[INFO] [stdout] d2e7ecaf9e1e0d45e5e5b1c069eaa58a6478fa83f4974c6bb3877dabc44bf53d