[INFO] fetching crate tweak 0.1.1...
[INFO] testing tweak-0.1.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate tweak 0.1.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate tweak 0.1.1 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 tweak 0.1.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate tweak 0.1.1
[INFO] tweaked toml for crates.io crate tweak 0.1.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a90e2a8703f13552db506d5510fa6299375d8b718ea994a366cddcc53e85b127
[INFO] running `Command { std: "docker" "start" "-a" "a90e2a8703f13552db506d5510fa6299375d8b718ea994a366cddcc53e85b127", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a90e2a8703f13552db506d5510fa6299375d8b718ea994a366cddcc53e85b127", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a90e2a8703f13552db506d5510fa6299375d8b718ea994a366cddcc53e85b127", kill_on_drop: false }`
[INFO] [stdout] a90e2a8703f13552db506d5510fa6299375d8b718ea994a366cddcc53e85b127
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 88bdc84f69542800c93bb7614ce412e042ebce2886604b27aeb80d2b714f957b
[INFO] running `Command { std: "docker" "start" "-a" "88bdc84f69542800c93bb7614ce412e042ebce2886604b27aeb80d2b714f957b", kill_on_drop: false }`
[INFO] [stderr]    Compiling tweak v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/case.rs:7:48
[INFO] [stdout]   |
[INFO] [stdout] 7 |     cases: Vec<(Option<When<C, E>>, Option<Box<Execute<C, E>>>)>,
[INFO] [stdout]   |                                                ^^^^^^^^^^^^^ help: use `dyn`: `dyn Execute<C, E>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/case.rs:56:40
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn push_action(&mut self, act: Box<Execute<C, E>>) {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^ help: use `dyn`: `dyn Execute<C, E>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "88bdc84f69542800c93bb7614ce412e042ebce2886604b27aeb80d2b714f957b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88bdc84f69542800c93bb7614ce412e042ebce2886604b27aeb80d2b714f957b", kill_on_drop: false }`
[INFO] [stdout] 88bdc84f69542800c93bb7614ce412e042ebce2886604b27aeb80d2b714f957b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stdout] f90183c852ca63ca3711fc379c48f8e5237eb984c5b5ca4c5032b6a0d21dee7b
[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" "f90183c852ca63ca3711fc379c48f8e5237eb984c5b5ca4c5032b6a0d21dee7b", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/case.rs:7:48
[INFO] [stdout]   |
[INFO] [stdout] 7 |     cases: Vec<(Option<When<C, E>>, Option<Box<Execute<C, E>>>)>,
[INFO] [stdout]   |                                                ^^^^^^^^^^^^^ help: use `dyn`: `dyn Execute<C, E>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tweak v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/case.rs:56:40
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn push_action(&mut self, act: Box<Execute<C, E>>) {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^ help: use `dyn`: `dyn Execute<C, E>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/case.rs:7:48
[INFO] [stdout]   |
[INFO] [stdout] 7 |     cases: Vec<(Option<When<C, E>>, Option<Box<Execute<C, E>>>)>,
[INFO] [stdout]   |                                                ^^^^^^^^^^^^^ help: use `dyn`: `dyn Execute<C, E>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/case.rs:56:40
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn push_action(&mut self, act: Box<Execute<C, E>>) {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^ help: use `dyn`: `dyn Execute<C, E>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `Command { std: "docker" "inspect" "f90183c852ca63ca3711fc379c48f8e5237eb984c5b5ca4c5032b6a0d21dee7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f90183c852ca63ca3711fc379c48f8e5237eb984c5b5ca4c5032b6a0d21dee7b", kill_on_drop: false }`
[INFO] [stdout] f90183c852ca63ca3711fc379c48f8e5237eb984c5b5ca4c5032b6a0d21dee7b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 158093f6927440b88fea55874674d4f7e79ffd6873b1713862aab8183a404bad
[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" "158093f6927440b88fea55874674d4f7e79ffd6873b1713862aab8183a404bad", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/case.rs:7:48
[INFO] [stderr]   |
[INFO] [stderr] 7 |     cases: Vec<(Option<When<C, E>>, Option<Box<Execute<C, E>>>)>,
[INFO] [stderr]   |                                                ^^^^^^^^^^^^^ help: use `dyn`: `dyn Execute<C, E>`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/case.rs:56:40
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn push_action(&mut self, act: Box<Execute<C, E>>) {
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^ help: use `dyn`: `dyn Execute<C, E>`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/case.rs:7:48
[INFO] [stderr]   |
[INFO] [stderr] 7 |     cases: Vec<(Option<When<C, E>>, Option<Box<Execute<C, E>>>)>,
[INFO] [stderr]   |                                                ^^^^^^^^^^^^^ help: use `dyn`: `dyn Execute<C, E>`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/case.rs:56:40
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn push_action(&mut self, act: Box<Execute<C, E>>) {
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^ help: use `dyn`: `dyn Execute<C, E>`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tweak-167b53a07f7b57ab
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test case::test::cascade_then_error ... ok
[INFO] [stdout] test case::test::cascade_when_error ... ok
[INFO] [stdout] test case::test::when_nothing_is_changed ... ok
[INFO] [stdout] test case::test::context_mutation ... ok
[INFO] [stdout] test case::test::nested_cases ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tweak
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/case.rs - case::Case<C, E>::new (line 15) ... ok
[INFO] [stdout] test src/lib.rs - (line 16) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "158093f6927440b88fea55874674d4f7e79ffd6873b1713862aab8183a404bad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "158093f6927440b88fea55874674d4f7e79ffd6873b1713862aab8183a404bad", kill_on_drop: false }`
[INFO] [stdout] 158093f6927440b88fea55874674d4f7e79ffd6873b1713862aab8183a404bad