[INFO] fetching crate trace 0.1.6...
[INFO] testing trace-0.1.6 against 1.55.0 for beta-1.56-1
[INFO] extracting crate trace 0.1.6 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate trace 0.1.6 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] removed /workspace/builds/worker-2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate trace 0.1.6
[INFO] finished tweaking crates.io crate trace 0.1.6
[INFO] tweaked toml for crates.io crate trace 0.1.6 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate trace 0.1.6 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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 95e45c58bf06314f9c8e4c4193cbdec9bd22b1639919095afe57441435edf3cd
[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" "95e45c58bf06314f9c8e4c4193cbdec9bd22b1639919095afe57441435edf3cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95e45c58bf06314f9c8e4c4193cbdec9bd22b1639919095afe57441435edf3cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95e45c58bf06314f9c8e4c4193cbdec9bd22b1639919095afe57441435edf3cd", kill_on_drop: false }`
[INFO] [stdout] 95e45c58bf06314f9c8e4c4193cbdec9bd22b1639919095afe57441435edf3cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1ef9f9f1f0c0e40c11706b0f7f024f1d936a94f54d63d23d2170be9b1addb705
[INFO] running `Command { std: "docker" "start" "-a" "1ef9f9f1f0c0e40c11706b0f7f024f1d936a94f54d63d23d2170be9b1addb705", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.46
[INFO] [stderr]    Compiling trace v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.03s
[INFO] running `Command { std: "docker" "inspect" "1ef9f9f1f0c0e40c11706b0f7f024f1d936a94f54d63d23d2170be9b1addb705", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ef9f9f1f0c0e40c11706b0f7f024f1d936a94f54d63d23d2170be9b1addb705", kill_on_drop: false }`
[INFO] [stdout] 1ef9f9f1f0c0e40c11706b0f7f024f1d936a94f54d63d23d2170be9b1addb705
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 879b81c204210367337ab018257f7d35cf683e22d96f184d968b82c5ba11e0c0
[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" "879b81c204210367337ab018257f7d35cf683e22d96f184d968b82c5ba11e0c0", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling regex-syntax v0.6.20
[INFO] [stderr]    Compiling humantime v2.0.1
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling gag v0.1.10
[INFO] [stderr]    Compiling aho-corasick v0.7.14
[INFO] [stderr]    Compiling regex v1.4.1
[INFO] [stderr]    Compiling env_logger v0.8.1
[INFO] [stderr]    Compiling trace v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 9.51s
[INFO] running `Command { std: "docker" "inspect" "879b81c204210367337ab018257f7d35cf683e22d96f184d968b82c5ba11e0c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "879b81c204210367337ab018257f7d35cf683e22d96f184d968b82c5ba11e0c0", kill_on_drop: false }`
[INFO] [stdout] 879b81c204210367337ab018257f7d35cf683e22d96f184d968b82c5ba11e0c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 25bfee811747da8ed4ae7a9ff0bdc7193d6445cb50d6d9eacddfda77ca7c1e3f
[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" "25bfee811747da8ed4ae7a9ff0bdc7193d6445cb50d6d9eacddfda77ca7c1e3f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/trace-f46de60cc269621c)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests trace
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - (line 62) ... ok
[INFO] [stdout] test src/lib.rs - init_depth_var (line 86) ... ok
[INFO] [stdout] test src/lib.rs - (line 23) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.39s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "25bfee811747da8ed4ae7a9ff0bdc7193d6445cb50d6d9eacddfda77ca7c1e3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25bfee811747da8ed4ae7a9ff0bdc7193d6445cb50d6d9eacddfda77ca7c1e3f", kill_on_drop: false }`
[INFO] [stdout] 25bfee811747da8ed4ae7a9ff0bdc7193d6445cb50d6d9eacddfda77ca7c1e3f