[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 try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkennytm%2Fcargo-kcov" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kennytm/cargo-kcov on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "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-0/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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rust-argon2 v0.5.1
[INFO] [stderr]   Downloaded redox_users v0.3.1
[INFO] [stderr]   Downloaded open v1.3.2
[INFO] [stderr]   Downloaded constant_time_eq v0.1.4
[INFO] [stderr]   Downloaded blake2b_simd v0.5.9
[INFO] [stderr]   Downloaded dirs-sys v0.3.4
[INFO] [stderr]   Downloaded rquery v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 58264a9bc76b06ff9c5b02c861f74300d9cf42de6c7affa62fa61a7999ef305a
[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" "58264a9bc76b06ff9c5b02c861f74300d9cf42de6c7affa62fa61a7999ef305a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "58264a9bc76b06ff9c5b02c861f74300d9cf42de6c7affa62fa61a7999ef305a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58264a9bc76b06ff9c5b02c861f74300d9cf42de6c7affa62fa61a7999ef305a", kill_on_drop: false }`
[INFO] [stdout] 58264a9bc76b06ff9c5b02c861f74300d9cf42de6c7affa62fa61a7999ef305a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 28c33e3524685c41bfd9d109a695b03e03cadb76273f069e4b1cb09a7b43be53
[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" "28c33e3524685c41bfd9d109a695b03e03cadb76273f069e4b1cb09a7b43be53", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling open v1.3.2
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling serde_json v1.0.44
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling term v0.6.1
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling cargo-kcov v0.5.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.09s
[INFO] running `Command { std: "docker" "inspect" "28c33e3524685c41bfd9d109a695b03e03cadb76273f069e4b1cb09a7b43be53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28c33e3524685c41bfd9d109a695b03e03cadb76273f069e4b1cb09a7b43be53", kill_on_drop: false }`
[INFO] [stdout] 28c33e3524685c41bfd9d109a695b03e03cadb76273f069e4b1cb09a7b43be53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c6579c27ea5e5a8fd8eff2c2417f6effbc99de38e1b876228455d2823592dd9
[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" "6c6579c27ea5e5a8fd8eff2c2417f6effbc99de38e1b876228455d2823592dd9", kill_on_drop: false }`
[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 6.21s
[INFO] running `Command { std: "docker" "inspect" "6c6579c27ea5e5a8fd8eff2c2417f6effbc99de38e1b876228455d2823592dd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c6579c27ea5e5a8fd8eff2c2417f6effbc99de38e1b876228455d2823592dd9", kill_on_drop: false }`
[INFO] [stdout] 6c6579c27ea5e5a8fd8eff2c2417f6effbc99de38e1b876228455d2823592dd9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 57738bb4891bc7a0954cf49ddfbb0c25975978860f9967ce3849c09fbb933d99
[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" "57738bb4891bc7a0954cf49ddfbb0c25975978860f9967ce3849c09fbb933d99", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cargo_kcov-2cba81555897cd53)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test target_finder::test_find_package_name_from_pkgid ... ok
[INFO] [stdout] test test_get_args_for_find_test_targets ... ok
[INFO] [stdout] test target_finder::test_parse_rustc_command_lines ... 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 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/check-colorless-output.rs (/opt/rustwide/target/debug/deps/check_colorless_output-43825635f3a39048)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running `/opt/rustwide/target/debug/cargo-kcov kcov --manifest-path /dev/null`
[INFO] [stdout] test test_colorless_stderr ... ok
[INFO] [stderr] error: kcov not installed.
[INFO] [stdout] 
[INFO] [stderr] caused by: No such file or directory (os error 2)
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.13s
[INFO] [stderr] note: you may follow https://users.rust-lang.org/t/650 to install kcov:
[INFO] [stdout] 
[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] [stderr]      Running tests/check-specimen.rs (/opt/rustwide/target/debug/deps/check_specimen-367b6960a623736a)
[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 cfg-if v0.1.10
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling vec_map v0.8.1
[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 28.06s
[INFO] [stderr]      Running `/opt/rustwide/target/debug/cargo-kcov kcov --manifest-path specimen/Cargo.toml --all`
[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_specimen ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- test_specimen stdout ----
[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] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55d05c977cc0 - <unknown>
[INFO] [stdout]    1:     0x55d05c99b40c - <unknown>
[INFO] [stdout]    2:     0x55d05c974ad5 - <unknown>
[INFO] [stdout]    3:     0x55d05c979e3b - <unknown>
[INFO] [stdout]    4:     0x55d05c97994c - <unknown>
[INFO] [stdout]    5:     0x55d05c97a504 - <unknown>
[INFO] [stdout]    6:     0x55d05c979fe7 - <unknown>
[INFO] [stdout]    7:     0x55d05c97819c - <unknown>
[INFO] [stdout]    8:     0x55d05c979f49 - <unknown>
[INFO] [stdout]    9:     0x55d05c8c2431 - <unknown>
[INFO] [stdout]   10:     0x55d05c8c2523 - <unknown>
[INFO] [stdout]   11:     0x55d05c8c58e6 - <unknown>
[INFO] [stdout]   12:     0x55d05c8c611a - <unknown>
[INFO] [stdout]   13:     0x55d05c8c5f6a - <unknown>
[INFO] [stdout]   14:     0x55d05c8c6cfe - <unknown>
[INFO] [stdout]   15:     0x55d05c8fca13 - <unknown>
[INFO] [stdout]   16:     0x55d05c8fb488 - <unknown>
[INFO] [stdout]   17:     0x55d05c8c9c0d - <unknown>
[INFO] [stdout]   18:     0x55d05c8ce338 - <unknown>
[INFO] [stdout]   19:     0x55d05c97f167 - <unknown>
[INFO] [stdout]   20:     0x7fb31c919609 - start_thread
[INFO] [stdout]   21:     0x7fb31c6eb293 - 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 59.22s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--test check-specimen'
[INFO] running `Command { std: "docker" "inspect" "57738bb4891bc7a0954cf49ddfbb0c25975978860f9967ce3849c09fbb933d99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57738bb4891bc7a0954cf49ddfbb0c25975978860f9967ce3849c09fbb933d99", kill_on_drop: false }`
[INFO] [stdout] 57738bb4891bc7a0954cf49ddfbb0c25975978860f9967ce3849c09fbb933d99