[INFO] updating cached repository steveklabnik/rwc
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/steveklabnik/rwc
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/steveklabnik/rwc" "work/ex/beta-1.37-6/sources/1.36.0/gh/steveklabnik/rwc"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/steveklabnik/rwc'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/steveklabnik/rwc" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/steveklabnik/rwc"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/steveklabnik/rwc'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cfba27ddfd46d0c601a706583a47bc314e9c6a17
[INFO] sha for GitHub repo steveklabnik/rwc: cfba27ddfd46d0c601a706583a47bc314e9c6a17
[INFO] validating manifest of steveklabnik/rwc 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 steveklabnik/rwc 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 steveklabnik/rwc
[INFO] finished frobbing steveklabnik/rwc
[INFO] frobbed toml for steveklabnik/rwc written to work/ex/beta-1.37-6/sources/1.36.0/gh/steveklabnik/rwc/Cargo.toml
[INFO] started frobbing steveklabnik/rwc
[INFO] finished frobbing steveklabnik/rwc
[INFO] frobbed toml for steveklabnik/rwc written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/steveklabnik/rwc/Cargo.toml
[INFO] crate steveklabnik/rwc already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/steveklabnik/rwc/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing steveklabnik/rwc 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-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/steveklabnik/rwc:/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] 59f677504c86f62ad681ddc8e6cf1d38b403dc1011de24ebe11727302bf5dfed
[INFO] running `"docker" "start" "-a" "59f677504c86f62ad681ddc8e6cf1d38b403dc1011de24ebe11727302bf5dfed"`
[INFO] [stderr]    Compiling rwc v0.3.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `"docker" "inspect" "59f677504c86f62ad681ddc8e6cf1d38b403dc1011de24ebe11727302bf5dfed"`
[INFO] running `"docker" "rm" "-f" "59f677504c86f62ad681ddc8e6cf1d38b403dc1011de24ebe11727302bf5dfed"`
[INFO] [stdout] 59f677504c86f62ad681ddc8e6cf1d38b403dc1011de24ebe11727302bf5dfed
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/steveklabnik/rwc:/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] a2880682e5117f573ba2a7842b1656aa2cb89dbcf6fb23b07d435819109c2c80
[INFO] running `"docker" "start" "-a" "a2880682e5117f573ba2a7842b1656aa2cb89dbcf6fb23b07d435819109c2c80"`
[INFO] [stderr]    Compiling rwc v0.3.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `"docker" "inspect" "a2880682e5117f573ba2a7842b1656aa2cb89dbcf6fb23b07d435819109c2c80"`
[INFO] running `"docker" "rm" "-f" "a2880682e5117f573ba2a7842b1656aa2cb89dbcf6fb23b07d435819109c2c80"`
[INFO] [stdout] a2880682e5117f573ba2a7842b1656aa2cb89dbcf6fb23b07d435819109c2c80
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/steveklabnik/rwc:/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] 794909e4a38866ad7c3de6978ac7eaf43109ce12ab38bccb2ea5270ab6cdc024
[INFO] running `"docker" "start" "-a" "794909e4a38866ad7c3de6978ac7eaf43109ce12ab38bccb2ea5270ab6cdc024"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rwc-095d665f741ea7dd
[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" "794909e4a38866ad7c3de6978ac7eaf43109ce12ab38bccb2ea5270ab6cdc024"`
[INFO] running `"docker" "rm" "-f" "794909e4a38866ad7c3de6978ac7eaf43109ce12ab38bccb2ea5270ab6cdc024"`
[INFO] [stdout] 794909e4a38866ad7c3de6978ac7eaf43109ce12ab38bccb2ea5270ab6cdc024