[INFO] crate pretty_backtrace 0.1.2 is already in cache
[INFO] extracting crate pretty_backtrace 0.1.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/pretty_backtrace/0.1.2
[INFO] extracting crate pretty_backtrace 0.1.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/pretty_backtrace/0.1.2
[INFO] validating manifest of pretty_backtrace-0.1.2 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 pretty_backtrace-0.1.2 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 pretty_backtrace-0.1.2
[INFO] finished frobbing pretty_backtrace-0.1.2
[INFO] frobbed toml for pretty_backtrace-0.1.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/pretty_backtrace/0.1.2/Cargo.toml
[INFO] started frobbing pretty_backtrace-0.1.2
[INFO] finished frobbing pretty_backtrace-0.1.2
[INFO] frobbed toml for pretty_backtrace-0.1.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/pretty_backtrace/0.1.2/Cargo.toml
[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 pretty_backtrace-0.1.2 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/pretty_backtrace/0.1.2:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] cdf9bab925269eb1f6cea3ebfa5ffe97cec54fc88530d03da2c19f5e6c8a6fb0
[INFO] running `"docker" "start" "-a" "cdf9bab925269eb1f6cea3ebfa5ffe97cec54fc88530d03da2c19f5e6c8a6fb0"`
[INFO] [stderr]    Compiling parity-wasm v0.38.0
[INFO] [stderr]    Compiling smallvec v0.6.10
[INFO] [stderr]    Compiling fallible-iterator v0.2.0
[INFO] [stderr]    Compiling onig_sys v69.1.0
[INFO] [stderr]    Compiling cpp_demangle v0.2.13
[INFO] [stderr]    Compiling findshlibs v0.4.1
[INFO] [stderr]    Compiling line-wrap v0.1.1
[INFO] [stderr]    Compiling scroll_derive v0.9.5
[INFO] [stderr]    Compiling rental-impl v0.5.4
[INFO] [stderr]    Compiling plist v0.4.2
[INFO] [stderr]    Compiling intervaltree v0.2.4
[INFO] [stderr]    Compiling gimli v0.18.0
[INFO] [stderr]    Compiling scroll v0.9.2
[INFO] [stderr]    Compiling goblin v0.0.22
[INFO] [stderr]    Compiling onig v4.3.3
[INFO] [stderr]    Compiling syntect v3.2.0
[INFO] [stderr]    Compiling rental v0.5.4
[INFO] [stderr]    Compiling object v0.12.0
[INFO] [stderr]    Compiling addr2line v0.9.0
[INFO] [stderr]    Compiling pretty_backtrace v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:17:26
[INFO] [stderr]    |
[INFO] [stderr] 17 |     static ref HOOK: Box<for<'a> Fn(&'a PanicInfo) + Sync + Send + 'static> = {
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn for<'a> Fn(&'a PanicInfo) + Sync + Send + 'static`
[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/lib.rs:17:26
[INFO] [stderr]    |
[INFO] [stderr] 17 |     static ref HOOK: Box<for<'a> Fn(&'a PanicInfo) + Sync + Send + 'static> = {
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn for<'a> Fn(&'a PanicInfo) + Sync + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep`
[INFO] [stderr]   --> src/display_frame.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |         ::std::thread::sleep_ms(1000);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.54s
[INFO] running `"docker" "inspect" "cdf9bab925269eb1f6cea3ebfa5ffe97cec54fc88530d03da2c19f5e6c8a6fb0"`
[INFO] running `"docker" "rm" "-f" "cdf9bab925269eb1f6cea3ebfa5ffe97cec54fc88530d03da2c19f5e6c8a6fb0"`
[INFO] [stdout] cdf9bab925269eb1f6cea3ebfa5ffe97cec54fc88530d03da2c19f5e6c8a6fb0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/pretty_backtrace/0.1.2:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7806d1c245d6ca19bb6a0d976081afad5db7aba38e1909182312f8da938a29db
[INFO] running `"docker" "start" "-a" "7806d1c245d6ca19bb6a0d976081afad5db7aba38e1909182312f8da938a29db"`
[INFO] [stderr]    Compiling pretty_backtrace v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `num`
[INFO] [stderr]  --> examples/simple.rs:6:17
[INFO] [stderr]   |
[INFO] [stderr] 6 | fn please_panic(num: u64) {
[INFO] [stderr]   |                 ^^^ help: consider prefixing with an underscore: `_num`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:17:26
[INFO] [stderr]    |
[INFO] [stderr] 17 |     static ref HOOK: Box<for<'a> Fn(&'a PanicInfo) + Sync + Send + 'static> = {
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn for<'a> Fn(&'a PanicInfo) + Sync + Send + 'static`
[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/lib.rs:17:26
[INFO] [stderr]    |
[INFO] [stderr] 17 |     static ref HOOK: Box<for<'a> Fn(&'a PanicInfo) + Sync + Send + 'static> = {
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn for<'a> Fn(&'a PanicInfo) + Sync + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep`
[INFO] [stderr]   --> src/display_frame.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |         ::std::thread::sleep_ms(1000);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.24s
[INFO] running `"docker" "inspect" "7806d1c245d6ca19bb6a0d976081afad5db7aba38e1909182312f8da938a29db"`
[INFO] running `"docker" "rm" "-f" "7806d1c245d6ca19bb6a0d976081afad5db7aba38e1909182312f8da938a29db"`
[INFO] [stdout] 7806d1c245d6ca19bb6a0d976081afad5db7aba38e1909182312f8da938a29db
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/pretty_backtrace/0.1.2:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 189b1f5e693c50a987503e3500fcec133198f3bfa91fb98cb013bc5e190a8a92
[INFO] running `"docker" "start" "-a" "189b1f5e693c50a987503e3500fcec133198f3bfa91fb98cb013bc5e190a8a92"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/pretty_backtrace-c852cb596d5c0cbb
[INFO] [stderr]      Running /opt/crater/target/debug/deps/should_panic_test-71be705d0552fce3
[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] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests pretty_backtrace
[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" "189b1f5e693c50a987503e3500fcec133198f3bfa91fb98cb013bc5e190a8a92"`
[INFO] running `"docker" "rm" "-f" "189b1f5e693c50a987503e3500fcec133198f3bfa91fb98cb013bc5e190a8a92"`
[INFO] [stdout] 189b1f5e693c50a987503e3500fcec133198f3bfa91fb98cb013bc5e190a8a92