[INFO] fetching crate witcher 0.1.19...
[INFO] testing witcher-0.1.19 against 1.49.0 for beta-1.50-1
[INFO] extracting crate witcher 0.1.19 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate witcher 0.1.19 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate witcher 0.1.19
[INFO] finished tweaking crates.io crate witcher 0.1.19
[INFO] tweaked toml for crates.io crate witcher 0.1.19 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate witcher 0.1.19 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c00cb6b3a1dd647104a609786af48a2683b766a5b772372a4e1087b7d0790baa
[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" "c00cb6b3a1dd647104a609786af48a2683b766a5b772372a4e1087b7d0790baa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c00cb6b3a1dd647104a609786af48a2683b766a5b772372a4e1087b7d0790baa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c00cb6b3a1dd647104a609786af48a2683b766a5b772372a4e1087b7d0790baa", kill_on_drop: false }`
[INFO] [stdout] c00cb6b3a1dd647104a609786af48a2683b766a5b772372a4e1087b7d0790baa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 718f56b7d4c10582aa5e3e9f84cc39c75055b04adf443f9e1c8fc75c9a75dfa8
[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" "718f56b7d4c10582aa5e3e9f84cc39c75055b04adf443f9e1c8fc75c9a75dfa8", kill_on_drop: false }`
[INFO] [stderr]    Compiling addr2line v0.14.0
[INFO] [stderr]    Compiling gory v0.1.7
[INFO] [stderr]    Compiling backtrace v0.3.55
[INFO] [stderr]    Compiling witcher v0.1.19 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.02s
[INFO] running `Command { std: "docker" "inspect" "718f56b7d4c10582aa5e3e9f84cc39c75055b04adf443f9e1c8fc75c9a75dfa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "718f56b7d4c10582aa5e3e9f84cc39c75055b04adf443f9e1c8fc75c9a75dfa8", kill_on_drop: false }`
[INFO] [stdout] 718f56b7d4c10582aa5e3e9f84cc39c75055b04adf443f9e1c8fc75c9a75dfa8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e9f09875b5e806f92b2c8dd68369cdb810e987e90fa76040d04237ea822d5c85
[INFO] running `Command { std: "docker" "start" "-a" "e9f09875b5e806f92b2c8dd68369cdb810e987e90fa76040d04237ea822d5c85", kill_on_drop: false }`
[INFO] [stderr]    Compiling witcher v0.1.19 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.83s
[INFO] running `Command { std: "docker" "inspect" "e9f09875b5e806f92b2c8dd68369cdb810e987e90fa76040d04237ea822d5c85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9f09875b5e806f92b2c8dd68369cdb810e987e90fa76040d04237ea822d5c85", kill_on_drop: false }`
[INFO] [stdout] e9f09875b5e806f92b2c8dd68369cdb810e987e90fa76040d04237ea822d5c85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0dc564052133347307a23a31fee1bb2b9be4e32b452ba0c135244b1723ca2a9a
[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" "0dc564052133347307a23a31fee1bb2b9be4e32b452ba0c135244b1723ca2a9a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/witcher-464ed82d5901b164
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test backtrace::tests::test_frame_equality ... ok
[INFO] [stdout] test backtrace::tests::test_simple_path ... ok
[INFO] [stdout] test tests::test_single ... ok
[INFO] [stdout] test backtrace::tests::test_omit ... ok
[INFO] [stdout] test tests::test_match_err ... ok
[INFO] [stdout] test error::tests::test_assist_methods ... ok
[INFO] [stdout] test wrapper::tests::test_pass ... ok
[INFO] [stdout] test wrapper::tests::test_retry_on ... ok
[INFO] [stdout] test tests::test_err ... ok
[INFO] [stdout] test error::tests::test_chained_cause ... ok
[INFO] [stdout] test error::tests::test_output_levels ... ok
[INFO] [stdout] test tests::test_bail ... ok
[INFO] [stdout] test error::tests::test_ext_and_last ... ok
[INFO] [stdout] test tests::test_wrap ... 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 witcher
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - bail (line 31) ... ignored
[INFO] [stdout] test src/lib.rs - err (line 54) ... ignored
[INFO] [stdout] test src/lib.rs - wrap (line 76) ... ignored
[INFO] [stdout] test src/lib.rs - prelude (line 14) ... ok
[INFO] [stdout] test src/lib.rs - match_err (line 97) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 3 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0dc564052133347307a23a31fee1bb2b9be4e32b452ba0c135244b1723ca2a9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dc564052133347307a23a31fee1bb2b9be4e32b452ba0c135244b1723ca2a9a", kill_on_drop: false }`
[INFO] [stdout] 0dc564052133347307a23a31fee1bb2b9be4e32b452ba0c135244b1723ca2a9a