[INFO] crate which 2.0.1 is already in cache
[INFO] extracting crate which 2.0.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/which/2.0.1
[INFO] extracting crate which 2.0.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/which/2.0.1
[INFO] validating manifest of which-2.0.1 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 which-2.0.1 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 which-2.0.1
[INFO] finished frobbing which-2.0.1
[INFO] frobbed toml for which-2.0.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/which/2.0.1/Cargo.toml
[INFO] started frobbing which-2.0.1
[INFO] finished frobbing which-2.0.1
[INFO] frobbed toml for which-2.0.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/which/2.0.1/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 which-2.0.1 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-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/which/2.0.1:/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] 5150e0307e1c2cf7319d4cf87c3786f725cd6ed806b379d886a619901a12fba3
[INFO] running `"docker" "start" "-a" "5150e0307e1c2cf7319d4cf87c3786f725cd6ed806b379d886a619901a12fba3"`
[INFO] [stderr]    Compiling which v2.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/checker.rs:50:23
[INFO] [stderr]    |
[INFO] [stderr] 50 |     checkers: Vec<Box<Checker>>,
[INFO] [stderr]    |                       ^^^^^^^ help: use `dyn`: `dyn Checker`
[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/checker.rs:60:47
[INFO] [stderr]    |
[INFO] [stderr] 60 |     pub fn add_checker(mut self, checker: Box<Checker>) -> CompositeChecker {
[INFO] [stderr]    |                                               ^^^^^^^ help: use `dyn`: `dyn Checker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:35:32
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn cause(&self) -> Option<&Fail> {
[INFO] [stderr]    |                                ^^^^ help: use `dyn`: `dyn Fail`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/finder.rs:54:26
[INFO] [stderr]    |
[INFO] [stderr] 54 |         binary_checker: &Checker,
[INFO] [stderr]    |                          ^^^^^^^ help: use `dyn`: `dyn Checker`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
[INFO] [stderr]   --> src/lib.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 | use std::ascii::AsciiExt;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `"docker" "inspect" "5150e0307e1c2cf7319d4cf87c3786f725cd6ed806b379d886a619901a12fba3"`
[INFO] running `"docker" "rm" "-f" "5150e0307e1c2cf7319d4cf87c3786f725cd6ed806b379d886a619901a12fba3"`
[INFO] [stdout] 5150e0307e1c2cf7319d4cf87c3786f725cd6ed806b379d886a619901a12fba3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/which/2.0.1:/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] 35aa03c39fa28238a128aaf4c922582b7d5a7f355fe1dfd36dbea7fceeed4588
[INFO] running `"docker" "start" "-a" "35aa03c39fa28238a128aaf4c922582b7d5a7f355fe1dfd36dbea7fceeed4588"`
[INFO] [stderr]    Compiling which v2.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/checker.rs:50:23
[INFO] [stderr]    |
[INFO] [stderr] 50 |     checkers: Vec<Box<Checker>>,
[INFO] [stderr]    |                       ^^^^^^^ help: use `dyn`: `dyn Checker`
[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/checker.rs:60:47
[INFO] [stderr]    |
[INFO] [stderr] 60 |     pub fn add_checker(mut self, checker: Box<Checker>) -> CompositeChecker {
[INFO] [stderr]    |                                               ^^^^^^^ help: use `dyn`: `dyn Checker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:35:32
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn cause(&self) -> Option<&Fail> {
[INFO] [stderr]    |                                ^^^^ help: use `dyn`: `dyn Fail`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/finder.rs:54:26
[INFO] [stderr]    |
[INFO] [stderr] 54 |         binary_checker: &Checker,
[INFO] [stderr]    |                          ^^^^^^^ help: use `dyn`: `dyn Checker`
[INFO] [stderr] 
[INFO] [stderr] warning: the item `libc` is imported redundantly
[INFO] [stderr]    --> src/lib.rs:111:13
[INFO] [stderr]     |
[INFO] [stderr] 88  |     use super::*;
[INFO] [stderr]     |         -------- the item `libc` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 111 |         use libc;
[INFO] [stderr]     |             ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
[INFO] [stderr]   --> src/lib.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 | use std::ascii::AsciiExt;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `"docker" "inspect" "35aa03c39fa28238a128aaf4c922582b7d5a7f355fe1dfd36dbea7fceeed4588"`
[INFO] running `"docker" "rm" "-f" "35aa03c39fa28238a128aaf4c922582b7d5a7f355fe1dfd36dbea7fceeed4588"`
[INFO] [stdout] 35aa03c39fa28238a128aaf4c922582b7d5a7f355fe1dfd36dbea7fceeed4588
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/which/2.0.1:/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] d7b752b483e69ba32b0a8f1a1bd87c03c6a4d522d35e959142c0f5676ee01e89
[INFO] running `"docker" "start" "-a" "d7b752b483e69ba32b0a8f1a1bd87c03c6a4d522d35e959142c0f5676ee01e89"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/which-ee95fab24abd8ced
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test test::it_works ... ok
[INFO] [stdout] test test::test_failure ... ok
[INFO] [stdout] test test::test_which_absolute_extension ... ok
[INFO] [stdout] test test::test_which_absolute ... ok
[INFO] [stdout] test test::test_which_absolute_non_executable ... ok
[INFO] [stdout] test test::test_which ... ok
[INFO] [stdout] test test::test_which_extension ... ok
[INFO] [stdout] test test::test_which_non_executable ... ok
[INFO] [stdout] test test::test_which_relative_extension ... ok
[INFO] [stdout] test test::test_which_second ... ok
[INFO] [stdout] test test::test_which_relative_leading_dot ... ok
[INFO] [stdout] test test::test_which_not_found ... ok
[INFO] [stdout] test test::test_which_relative_non_executable ... ok
[INFO] [stdout] test test::test_which_relative ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests which
[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" "d7b752b483e69ba32b0a8f1a1bd87c03c6a4d522d35e959142c0f5676ee01e89"`
[INFO] running `"docker" "rm" "-f" "d7b752b483e69ba32b0a8f1a1bd87c03c6a4d522d35e959142c0f5676ee01e89"`
[INFO] [stdout] d7b752b483e69ba32b0a8f1a1bd87c03c6a4d522d35e959142c0f5676ee01e89