[INFO] fetching crate ctor 0.1.17...
[INFO] testing ctor-0.1.17 against 1.49.0 for beta-1.50-1
[INFO] extracting crate ctor 0.1.17 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate ctor 0.1.17 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 ctor 0.1.17
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate ctor 0.1.17
[INFO] tweaked toml for crates.io crate ctor 0.1.17 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate ctor 0.1.17 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 210b508fc75e2d843750e4d774d8ee35e8279bf662be515fed3667f7347ce351
[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" "210b508fc75e2d843750e4d774d8ee35e8279bf662be515fed3667f7347ce351", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "210b508fc75e2d843750e4d774d8ee35e8279bf662be515fed3667f7347ce351", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "210b508fc75e2d843750e4d774d8ee35e8279bf662be515fed3667f7347ce351", kill_on_drop: false }`
[INFO] [stdout] 210b508fc75e2d843750e4d774d8ee35e8279bf662be515fed3667f7347ce351
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 09e7c171eb556a411b1619f11da9381965cea1b655b9b0b405971656c3b1dcbf
[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" "09e7c171eb556a411b1619f11da9381965cea1b655b9b0b405971656c3b1dcbf", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.56
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling ctor v0.1.17 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.80s
[INFO] running `Command { std: "docker" "inspect" "09e7c171eb556a411b1619f11da9381965cea1b655b9b0b405971656c3b1dcbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09e7c171eb556a411b1619f11da9381965cea1b655b9b0b405971656c3b1dcbf", kill_on_drop: false }`
[INFO] [stdout] 09e7c171eb556a411b1619f11da9381965cea1b655b9b0b405971656c3b1dcbf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/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] 7d09abaf048acd03311bef0c0c4ad4157577fa4fcb222c57d849abc62e75ee4a
[INFO] running `Command { std: "docker" "start" "-a" "7d09abaf048acd03311bef0c0c4ad4157577fa4fcb222c57d849abc62e75ee4a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc-print v0.1.15
[INFO] [stderr]    Compiling ctor v0.1.17 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `Command { std: "docker" "inspect" "7d09abaf048acd03311bef0c0c4ad4157577fa4fcb222c57d849abc62e75ee4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d09abaf048acd03311bef0c0c4ad4157577fa4fcb222c57d849abc62e75ee4a", kill_on_drop: false }`
[INFO] [stdout] 7d09abaf048acd03311bef0c0c4ad4157577fa4fcb222c57d849abc62e75ee4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5d07fa0c411d5e23396caceb2495be49f9cb97bd8a281983a593082ec8208b9e
[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" "5d07fa0c411d5e23396caceb2495be49f9cb97bd8a281983a593082ec8208b9e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ctor-a5fa070e705b84f7
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ctor
[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] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - ctor (line 44) ... ok
[INFO] [stdout] test src/lib.rs - ctor (line 60) ... ok
[INFO] [stdout] test src/lib.rs - ctor (line 101) ... ok
[INFO] [stdout] test src/lib.rs - dtor (line 260) ... ok
[INFO] [stdout] test src/lib.rs - ctor (line 75) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5d07fa0c411d5e23396caceb2495be49f9cb97bd8a281983a593082ec8208b9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d07fa0c411d5e23396caceb2495be49f9cb97bd8a281983a593082ec8208b9e", kill_on_drop: false }`
[INFO] [stdout] 5d07fa0c411d5e23396caceb2495be49f9cb97bd8a281983a593082ec8208b9e