[INFO] updating cached repository bennyyip/plug2pack
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/bennyyip/plug2pack
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/bennyyip/plug2pack" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/bennyyip/plug2pack"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/bennyyip/plug2pack'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/bennyyip/plug2pack" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/bennyyip/plug2pack"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/bennyyip/plug2pack'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 29ccb6cd58919007380d790864331c1762f1e924
[INFO] sha for GitHub repo bennyyip/plug2pack: 29ccb6cd58919007380d790864331c1762f1e924
[INFO] validating manifest of bennyyip/plug2pack on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of bennyyip/plug2pack on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing bennyyip/plug2pack
[INFO] finished frobbing bennyyip/plug2pack
[INFO] frobbed toml for bennyyip/plug2pack written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/bennyyip/plug2pack/Cargo.toml
[INFO] started frobbing bennyyip/plug2pack
[INFO] finished frobbing bennyyip/plug2pack
[INFO] frobbed toml for bennyyip/plug2pack written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/bennyyip/plug2pack/Cargo.toml
[INFO] crate bennyyip/plug2pack already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking bennyyip/plug2pack against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-0/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/bennyyip/plug2pack:/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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0ccf842b218efccf2466a2ed10b0ffcc5ad4f01f66073be5a03b04b24f1e3a73
[INFO] running `"docker" "start" "-a" "0ccf842b218efccf2466a2ed10b0ffcc5ad4f01f66073be5a03b04b24f1e3a73"`
[INFO] [stderr]     Checking term_size v0.3.0
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking atty v0.2.3
[INFO] [stderr]     Checking thread_local v0.3.4
[INFO] [stderr]     Checking serde_yaml v0.7.1
[INFO] [stderr]    Compiling structopt-derive v0.1.1
[INFO] [stderr]     Checking aho-corasick v0.6.3
[INFO] [stderr]     Checking nom v3.2.0
[INFO] [stderr]     Checking textwrap v0.8.0
[INFO] [stderr]     Checking regex v0.2.2
[INFO] [stderr]     Checking clap v2.26.2
[INFO] [stderr]     Checking structopt v0.1.1
[INFO] [stderr]     Checking plug2pack v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:118:22
[INFO] [stderr]     |
[INFO] [stderr] 118 |     let mut out: Box<Write> = match opt.output {
[INFO] [stderr]     |                      ^^^^^ help: use `dyn`: `dyn Write`
[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:118:22
[INFO] [stderr]     |
[INFO] [stderr] 118 |     let mut out: Box<Write> = match opt.output {
[INFO] [stderr]     |                      ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.30s
[INFO] running `"docker" "inspect" "0ccf842b218efccf2466a2ed10b0ffcc5ad4f01f66073be5a03b04b24f1e3a73"`
[INFO] running `"docker" "rm" "-f" "0ccf842b218efccf2466a2ed10b0ffcc5ad4f01f66073be5a03b04b24f1e3a73"`
[INFO] [stdout] 0ccf842b218efccf2466a2ed10b0ffcc5ad4f01f66073be5a03b04b24f1e3a73