[INFO] cloning repository https://github.com/kennytm/cargo-kcov
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kennytm/cargo-kcov" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkennytm%2Fcargo-kcov", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkennytm%2Fcargo-kcov'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7a6bd499a1f9d4719a20cc9a37b6600fa1c9f68a
[INFO] testing kennytm/cargo-kcov against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkennytm%2Fcargo-kcov" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kennytm/cargo-kcov on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kennytm/cargo-kcov
[INFO] finished tweaking git repo https://github.com/kennytm/cargo-kcov
[INFO] tweaked toml for git repo https://github.com/kennytm/cargo-kcov written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/kennytm/cargo-kcov already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 13686a8dfc8fdaa14be60aa76db53f652c6de6278480c8488e3423af5d45d4a3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "13686a8dfc8fdaa14be60aa76db53f652c6de6278480c8488e3423af5d45d4a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13686a8dfc8fdaa14be60aa76db53f652c6de6278480c8488e3423af5d45d4a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13686a8dfc8fdaa14be60aa76db53f652c6de6278480c8488e3423af5d45d4a3", kill_on_drop: false }`
[INFO] [stdout] 13686a8dfc8fdaa14be60aa76db53f652c6de6278480c8488e3423af5d45d4a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ed8789c93bf78a8e7353a7572c967577457be514c99f9556c50dc1783d52214
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6ed8789c93bf78a8e7353a7572c967577457be514c99f9556c50dc1783d52214", kill_on_drop: false }`
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling open v1.3.2
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling serde_json v1.0.44
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling term v0.6.1
[INFO] [stderr]    Compiling cargo-kcov v0.5.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.99s
[INFO] running `Command { std: "docker" "inspect" "6ed8789c93bf78a8e7353a7572c967577457be514c99f9556c50dc1783d52214", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ed8789c93bf78a8e7353a7572c967577457be514c99f9556c50dc1783d52214", kill_on_drop: false }`
[INFO] [stdout] 6ed8789c93bf78a8e7353a7572c967577457be514c99f9556c50dc1783d52214
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 543cc1cf035db9586429a47adede0f29501b4875d4496df7ef4a8164ad4a4d1a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "543cc1cf035db9586429a47adede0f29501b4875d4496df7ef4a8164ad4a4d1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling rquery v0.4.1
[INFO] [stderr]    Compiling cargo-kcov v0.5.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 11.63s
[INFO] running `Command { std: "docker" "inspect" "543cc1cf035db9586429a47adede0f29501b4875d4496df7ef4a8164ad4a4d1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "543cc1cf035db9586429a47adede0f29501b4875d4496df7ef4a8164ad4a4d1a", kill_on_drop: false }`
[INFO] [stdout] 543cc1cf035db9586429a47adede0f29501b4875d4496df7ef4a8164ad4a4d1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7f7b0e358fe8ac29954c96713ce7edc49b8749af7f943ec90ae596f65d460724
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7f7b0e358fe8ac29954c96713ce7edc49b8749af7f943ec90ae596f65d460724", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cargo_kcov-b77da2270c26fe27)
[INFO] [stdout] test target_finder::test_find_package_name_from_pkgid ... ok
[INFO] [stdout] test target_finder::test_parse_rustc_command_lines ... ok
[INFO] [stderr]      Running tests/check-colorless-output.rs (/opt/rustwide/target/debug/deps/check_colorless_output-cc7bb32c57afbc24)
[INFO] [stdout] test test_get_args_for_find_test_targets ... ok
[INFO] [stdout] test target_finder::test_find_test_targets ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running `/opt/rustwide/target/debug/cargo-kcov kcov --manifest-path /dev/null`
[INFO] [stderr] error: kcov not installed.
[INFO] [stderr] caused by: No such file or directory (os error 2)
[INFO] [stderr] note: you may follow https://users.rust-lang.org/t/650 to install kcov:
[INFO] [stderr] 
[INFO] [stderr]     $ sudo apt-get install cmake g++ pkg-config jq
[INFO] [stderr] 
[INFO] [stderr]     $ sudo apt-get install libcurl4-openssl-dev libelf-dev libdw-dev binutils-dev libiberty-dev
[INFO] [stderr] 
[INFO] [stderr]     $ cargo kcov --print-install-kcov-sh | sh
[INFO] [stdout] test test_colorless_stderr ... ok
[INFO] [stderr]      Running tests/check-specimen.rs (/opt/rustwide/target/debug/deps/check_specimen-857707581ce0c1e8)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.24s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr] error: could not remove build directory
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to remove directory `/opt/rustwide/target`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Device or resource busy (os error 16)
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling open v1.3.2
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling term v0.6.1
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling serde_json v1.0.44
[INFO] [stderr]    Compiling cargo-kcov v0.5.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.20s
[INFO] [stderr]      Running `/opt/rustwide/target/debug/cargo-kcov kcov --manifest-path specimen/Cargo.toml --all`
[INFO] [stdout] test test_specimen ... FAILED
[INFO] [stderr] error: kcov not installed.
[INFO] [stdout] 
[INFO] [stderr] caused by: No such file or directory (os error 2)
[INFO] [stdout] failures:
[INFO] [stderr] note: you may follow https://users.rust-lang.org/t/650 to install kcov:
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] ---- test_specimen stdout ----
[INFO] [stderr]     $ sudo apt-get install cmake g++ pkg-config jq
[INFO] [stdout] thread 'test_specimen' panicked at 'cobertura.xml exists: UnableToOpenFile("specimen/target/cov/kcov-merged/cobertura.xml")', tests/check-specimen.rs:48:10
[INFO] [stderr] 
[INFO] [stdout] stack backtrace:
[INFO] [stderr]     $ sudo apt-get install libcurl4-openssl-dev libelf-dev libdw-dev binutils-dev libiberty-dev
[INFO] [stdout]    0:     0x5621bedeac20 - <unknown>
[INFO] [stderr] 
[INFO] [stdout]    1:     0x5621bee0e2dc - <unknown>
[INFO] [stderr]     $ cargo kcov --print-install-kcov-sh | sh
[INFO] [stdout]    2:     0x5621bede7b85 - <unknown>
[INFO] [stdout]    3:     0x5621bedecd8b - <unknown>
[INFO] [stdout]    4:     0x5621bedec89c - <unknown>
[INFO] [stdout]    5:     0x5621beded454 - <unknown>
[INFO] [stdout]    6:     0x5621bedecf37 - <unknown>
[INFO] [stdout]    7:     0x5621bedeb11c - <unknown>
[INFO] [stdout]    8:     0x5621bedece99 - <unknown>
[INFO] [stdout]    9:     0x5621bed35431 - <unknown>
[INFO] [stdout]   10:     0x5621bed35523 - <unknown>
[INFO] [stdout]   11:     0x5621bed388e6 - <unknown>
[INFO] [stdout]   12:     0x5621bed3911a - <unknown>
[INFO] [stdout]   13:     0x5621bed38f6a - <unknown>
[INFO] [stdout]   14:     0x5621bed39c9e - <unknown>
[INFO] [stdout]   15:     0x5621bed6f9c3 - <unknown>
[INFO] [stdout]   16:     0x5621bed6e478 - <unknown>
[INFO] [stdout]   17:     0x5621bed3cc0d - <unknown>
[INFO] [stdout]   18:     0x5621bed413e8 - <unknown>
[INFO] [stdout]   19:     0x5621bedf20b7 - <unknown>
[INFO] [stdout]   20:     0x7fabb94f4609 - start_thread
[INFO] [stdout]   21:     0x7fabb92c6293 - clone
[INFO] [stdout]   22:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     test_specimen
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 56.47s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--test check-specimen'
[INFO] running `Command { std: "docker" "inspect" "7f7b0e358fe8ac29954c96713ce7edc49b8749af7f943ec90ae596f65d460724", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f7b0e358fe8ac29954c96713ce7edc49b8749af7f943ec90ae596f65d460724", kill_on_drop: false }`
[INFO] [stdout] 7f7b0e358fe8ac29954c96713ce7edc49b8749af7f943ec90ae596f65d460724