[INFO] updating cached repository connors2015/rust-tutorial-chapter3
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/connors2015/rust-tutorial-chapter3
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/connors2015/rust-tutorial-chapter3" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/connors2015/rust-tutorial-chapter3"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/connors2015/rust-tutorial-chapter3'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/connors2015/rust-tutorial-chapter3" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/connors2015/rust-tutorial-chapter3"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/connors2015/rust-tutorial-chapter3'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 559cac244fd777fdd17dedbf8211fa4cd769bcd2
[INFO] sha for GitHub repo connors2015/rust-tutorial-chapter3: 559cac244fd777fdd17dedbf8211fa4cd769bcd2
[INFO] validating manifest of connors2015/rust-tutorial-chapter3 on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of connors2015/rust-tutorial-chapter3 on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing connors2015/rust-tutorial-chapter3
[INFO] finished frobbing connors2015/rust-tutorial-chapter3
[INFO] frobbed toml for connors2015/rust-tutorial-chapter3 written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/connors2015/rust-tutorial-chapter3/Cargo.toml
[INFO] started frobbing connors2015/rust-tutorial-chapter3
[INFO] finished frobbing connors2015/rust-tutorial-chapter3
[INFO] frobbed toml for connors2015/rust-tutorial-chapter3 written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/connors2015/rust-tutorial-chapter3/Cargo.toml
[INFO] crate connors2015/rust-tutorial-chapter3 has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing connors2015/rust-tutorial-chapter3 against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-2/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/connors2015/rust-tutorial-chapter3:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] 863795d1b9b86b0e3e6d8e2d8038a79130affea46dfecf55c3201d42ef7e8ffd
[INFO] running `"docker" "start" "-a" "863795d1b9b86b0e3e6d8e2d8038a79130affea46dfecf55c3201d42ef7e8ffd"`
[INFO] [stderr]    Compiling rust-tutorial-chapter3 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `"docker" "inspect" "863795d1b9b86b0e3e6d8e2d8038a79130affea46dfecf55c3201d42ef7e8ffd"`
[INFO] running `"docker" "rm" "-f" "863795d1b9b86b0e3e6d8e2d8038a79130affea46dfecf55c3201d42ef7e8ffd"`
[INFO] [stdout] 863795d1b9b86b0e3e6d8e2d8038a79130affea46dfecf55c3201d42ef7e8ffd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-2/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/connors2015/rust-tutorial-chapter3:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] a6ae0d98f7c4b432dc7f3c4f367fc14d880d2597f2559a525e47324f12ee5ac7
[INFO] running `"docker" "start" "-a" "a6ae0d98f7c4b432dc7f3c4f367fc14d880d2597f2559a525e47324f12ee5ac7"`
[INFO] [stderr]    Compiling rust-tutorial-chapter3 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `"docker" "inspect" "a6ae0d98f7c4b432dc7f3c4f367fc14d880d2597f2559a525e47324f12ee5ac7"`
[INFO] running `"docker" "rm" "-f" "a6ae0d98f7c4b432dc7f3c4f367fc14d880d2597f2559a525e47324f12ee5ac7"`
[INFO] [stdout] a6ae0d98f7c4b432dc7f3c4f367fc14d880d2597f2559a525e47324f12ee5ac7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-2/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/connors2015/rust-tutorial-chapter3:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen"`
[INFO] [stdout] 4e46bbdeae6d8667551209cf76b32860faa95b14072e00f2cf1286aaa6d9cc9a
[INFO] running `"docker" "start" "-a" "4e46bbdeae6d8667551209cf76b32860faa95b14072e00f2cf1286aaa6d9cc9a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_tutorial_chapter3-fb816e6eb394d9aa
[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" "4e46bbdeae6d8667551209cf76b32860faa95b14072e00f2cf1286aaa6d9cc9a"`
[INFO] running `"docker" "rm" "-f" "4e46bbdeae6d8667551209cf76b32860faa95b14072e00f2cf1286aaa6d9cc9a"`
[INFO] [stdout] 4e46bbdeae6d8667551209cf76b32860faa95b14072e00f2cf1286aaa6d9cc9a