[INFO] updating cached repository utgwkk/rust-shell
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/utgwkk/rust-shell
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/utgwkk/rust-shell" "work/ex/beta-1.38-1/sources/1.37.0/gh/utgwkk/rust-shell"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/utgwkk/rust-shell'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/utgwkk/rust-shell" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/utgwkk/rust-shell"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/utgwkk/rust-shell'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 563a29d810588a7570f376458e1dba60acf13ca8
[INFO] sha for GitHub repo utgwkk/rust-shell: 563a29d810588a7570f376458e1dba60acf13ca8
[INFO] validating manifest of utgwkk/rust-shell 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 utgwkk/rust-shell 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 utgwkk/rust-shell
[INFO] finished frobbing utgwkk/rust-shell
[INFO] frobbed toml for utgwkk/rust-shell written to work/ex/beta-1.38-1/sources/1.37.0/gh/utgwkk/rust-shell/Cargo.toml
[INFO] started frobbing utgwkk/rust-shell
[INFO] finished frobbing utgwkk/rust-shell
[INFO] frobbed toml for utgwkk/rust-shell written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/utgwkk/rust-shell/Cargo.toml
[INFO] crate utgwkk/rust-shell 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing utgwkk/rust-shell 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-4/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/utgwkk/rust-shell:/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] 34c2a4109752ee79fa8bc4381383231e2dbe5d50bc2c997b39a9c57d0cde78cc
[INFO] running `"docker" "start" "-a" "34c2a4109752ee79fa8bc4381383231e2dbe5d50bc2c997b39a9c57d0cde78cc"`
[INFO] [stderr]    Compiling rust-shell v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/main.rs:8:26
[INFO] [stderr]   |
[INFO] [stderr] 8 | fn builtin_cd(args: &mut Iterator<Item = &str>) -> i32 {
[INFO] [stderr]   |                          ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &str>`
[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:23:26
[INFO] [stderr]    |
[INFO] [stderr] 23 | fn builtin_ls(args: &mut Iterator<Item = &str>) -> i32 {
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &str>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:42:45
[INFO] [stderr]    |
[INFO] [stderr] 42 | fn do_command(command: &str, mut args: &mut Iterator<Item = &str>) -> i32 {
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &str>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:49:36
[INFO] [stderr]    |
[INFO] [stderr] 49 |             ("cd", &builtin_cd as &Fn(&mut Iterator<Item = &str>) -> i32),
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Iterator<Item = &str>) -> i32`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:49:44
[INFO] [stderr]    |
[INFO] [stderr] 49 |             ("cd", &builtin_cd as &Fn(&mut Iterator<Item = &str>) -> i32),
[INFO] [stderr]    |                                            ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &str>`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.81s
[INFO] running `"docker" "inspect" "34c2a4109752ee79fa8bc4381383231e2dbe5d50bc2c997b39a9c57d0cde78cc"`
[INFO] running `"docker" "rm" "-f" "34c2a4109752ee79fa8bc4381383231e2dbe5d50bc2c997b39a9c57d0cde78cc"`
[INFO] [stdout] 34c2a4109752ee79fa8bc4381383231e2dbe5d50bc2c997b39a9c57d0cde78cc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/utgwkk/rust-shell:/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] 9ce051f6db8900d3f4a94ebcf30f606d1c488a73119f4f799c2744084cea37e8
[INFO] running `"docker" "start" "-a" "9ce051f6db8900d3f4a94ebcf30f606d1c488a73119f4f799c2744084cea37e8"`
[INFO] [stderr]    Compiling rust-shell v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/main.rs:8:26
[INFO] [stderr]   |
[INFO] [stderr] 8 | fn builtin_cd(args: &mut Iterator<Item = &str>) -> i32 {
[INFO] [stderr]   |                          ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &str>`
[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:23:26
[INFO] [stderr]    |
[INFO] [stderr] 23 | fn builtin_ls(args: &mut Iterator<Item = &str>) -> i32 {
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &str>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:42:45
[INFO] [stderr]    |
[INFO] [stderr] 42 | fn do_command(command: &str, mut args: &mut Iterator<Item = &str>) -> i32 {
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &str>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:49:36
[INFO] [stderr]    |
[INFO] [stderr] 49 |             ("cd", &builtin_cd as &Fn(&mut Iterator<Item = &str>) -> i32),
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Iterator<Item = &str>) -> i32`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:49:44
[INFO] [stderr]    |
[INFO] [stderr] 49 |             ("cd", &builtin_cd as &Fn(&mut Iterator<Item = &str>) -> i32),
[INFO] [stderr]    |                                            ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &str>`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `"docker" "inspect" "9ce051f6db8900d3f4a94ebcf30f606d1c488a73119f4f799c2744084cea37e8"`
[INFO] running `"docker" "rm" "-f" "9ce051f6db8900d3f4a94ebcf30f606d1c488a73119f4f799c2744084cea37e8"`
[INFO] [stdout] 9ce051f6db8900d3f4a94ebcf30f606d1c488a73119f4f799c2744084cea37e8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/utgwkk/rust-shell:/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] 6f60dd7f0d4baa5492a93074726d208777a0107f704371a3ffd3f2eb555627f7
[INFO] running `"docker" "start" "-a" "6f60dd7f0d4baa5492a93074726d208777a0107f704371a3ffd3f2eb555627f7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_shell-883e903501f8a3f1
[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" "6f60dd7f0d4baa5492a93074726d208777a0107f704371a3ffd3f2eb555627f7"`
[INFO] running `"docker" "rm" "-f" "6f60dd7f0d4baa5492a93074726d208777a0107f704371a3ffd3f2eb555627f7"`
[INFO] [stdout] 6f60dd7f0d4baa5492a93074726d208777a0107f704371a3ffd3f2eb555627f7