[INFO] updating cached repository mohamedahamada/rusting
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mohamedahamada/rusting
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mohamedahamada/rusting" "work/ex/beta-1.38-1/sources/1.37.0/gh/mohamedahamada/rusting"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mohamedahamada/rusting'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mohamedahamada/rusting" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mohamedahamada/rusting"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mohamedahamada/rusting'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2a19ad7432847fdf5e61cdad89568dabd1f32dd1
[INFO] sha for GitHub repo mohamedahamada/rusting: 2a19ad7432847fdf5e61cdad89568dabd1f32dd1
[INFO] validating manifest of mohamedahamada/rusting 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 mohamedahamada/rusting 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 mohamedahamada/rusting
[INFO] finished frobbing mohamedahamada/rusting
[INFO] frobbed toml for mohamedahamada/rusting written to work/ex/beta-1.38-1/sources/1.37.0/gh/mohamedahamada/rusting/Cargo.toml
[INFO] started frobbing mohamedahamada/rusting
[INFO] finished frobbing mohamedahamada/rusting
[INFO] frobbed toml for mohamedahamada/rusting written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mohamedahamada/rusting/Cargo.toml
[INFO] crate mohamedahamada/rusting already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/mohamedahamada/rusting/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[INFO] the lockfile is outdated, regenerating it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" "+1.37.0" "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 mohamedahamada/rusting against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mohamedahamada/rusting:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 84ef09e8f7bc05abb44f272a2445a0d51b538d979823cd217c7e3e55440bd0b3
[INFO] running `"docker" "start" "-a" "84ef09e8f7bc05abb44f272a2445a0d51b538d979823cd217c7e3e55440bd0b3"`
[INFO] [stderr]    Compiling rusting v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::cmp::Ordering`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::cmp::Ordering;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `"docker" "inspect" "84ef09e8f7bc05abb44f272a2445a0d51b538d979823cd217c7e3e55440bd0b3"`
[INFO] running `"docker" "rm" "-f" "84ef09e8f7bc05abb44f272a2445a0d51b538d979823cd217c7e3e55440bd0b3"`
[INFO] [stdout] 84ef09e8f7bc05abb44f272a2445a0d51b538d979823cd217c7e3e55440bd0b3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mohamedahamada/rusting:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] d4e31c57936488078db0c15723bc02a1f757cc51973dde26640e39117c6295b4
[INFO] running `"docker" "start" "-a" "d4e31c57936488078db0c15723bc02a1f757cc51973dde26640e39117c6295b4"`
[INFO] [stderr]    Compiling rusting v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::cmp::Ordering`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::cmp::Ordering;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `"docker" "inspect" "d4e31c57936488078db0c15723bc02a1f757cc51973dde26640e39117c6295b4"`
[INFO] running `"docker" "rm" "-f" "d4e31c57936488078db0c15723bc02a1f757cc51973dde26640e39117c6295b4"`
[INFO] [stdout] d4e31c57936488078db0c15723bc02a1f757cc51973dde26640e39117c6295b4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mohamedahamada/rusting:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] c0bd7f2fec3d704ebfbd05f36cf51516cc4b137beda900a2295e45fc5be4e88b
[INFO] running `"docker" "start" "-a" "c0bd7f2fec3d704ebfbd05f36cf51516cc4b137beda900a2295e45fc5be4e88b"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.20s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rusting-8d50582dbab196d9
[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" "c0bd7f2fec3d704ebfbd05f36cf51516cc4b137beda900a2295e45fc5be4e88b"`
[INFO] running `"docker" "rm" "-f" "c0bd7f2fec3d704ebfbd05f36cf51516cc4b137beda900a2295e45fc5be4e88b"`
[INFO] [stdout] c0bd7f2fec3d704ebfbd05f36cf51516cc4b137beda900a2295e45fc5be4e88b