[INFO] fetching crate thunky 0.9.0...
[INFO] testing thunky-0.9.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate thunky 0.9.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate thunky 0.9.0 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 thunky 0.9.0
[INFO] finished tweaking crates.io crate thunky 0.9.0
[INFO] tweaked toml for crates.io crate thunky 0.9.0 written to /workspace/builds/worker-3/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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] aa6879df2bedcfc65a766d733b631e9d3f2564957c2eb76b3247b8d199b20fb6
[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" "aa6879df2bedcfc65a766d733b631e9d3f2564957c2eb76b3247b8d199b20fb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa6879df2bedcfc65a766d733b631e9d3f2564957c2eb76b3247b8d199b20fb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa6879df2bedcfc65a766d733b631e9d3f2564957c2eb76b3247b8d199b20fb6", kill_on_drop: false }`
[INFO] [stdout] aa6879df2bedcfc65a766d733b631e9d3f2564957c2eb76b3247b8d199b20fb6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] c1b433360cd47f5ce8f6981020c549d88b53b2ff50e021983e14ac4be16fbaf4
[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" "c1b433360cd47f5ce8f6981020c549d88b53b2ff50e021983e14ac4be16fbaf4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling futures v0.1.30
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling smallvec v0.6.13
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling tokio-executor v0.1.10
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling tokio-sync v0.1.8
[INFO] [stderr]    Compiling tokio-threadpool v0.1.18
[INFO] [stderr]    Compiling tokio-timer v0.2.13
[INFO] [stderr]    Compiling tokio-current-thread v0.1.7
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling tokio-reactor v0.1.12
[INFO] [stderr]    Compiling tokio-codec v0.1.2
[INFO] [stderr]    Compiling tokio-fs v0.1.7
[INFO] [stderr]    Compiling tokio-uds v0.2.7
[INFO] [stderr]    Compiling tokio-udp v0.1.6
[INFO] [stderr]    Compiling tokio-tcp v0.1.4
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling thunky v0.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/lib.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | type Cb<T, E> = Box<Fn(&Result<T, E>) -> () + Send + Sync>;
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Result<T, E>) -> () + Send + Sync`
[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/lib.rs:4:24
[INFO] [stdout]   |
[INFO] [stdout] 4 | type RunCb<T, E> = Box<Fn(&Thunky<T, E>) -> () + Send + Sync>;
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Thunky<T, E>) -> () + Send + Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/lib.rs:8:27
[INFO] [stdout]   |
[INFO] [stdout] 8 |   state: Mutex<Option<Box<State<T, E> + Send + Sync>>>,
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn State<T, E> + Send + Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.08s
[INFO] running `Command { std: "docker" "inspect" "c1b433360cd47f5ce8f6981020c549d88b53b2ff50e021983e14ac4be16fbaf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1b433360cd47f5ce8f6981020c549d88b53b2ff50e021983e14ac4be16fbaf4", kill_on_drop: false }`
[INFO] [stdout] c1b433360cd47f5ce8f6981020c549d88b53b2ff50e021983e14ac4be16fbaf4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] b41e9ca5282704a1bebd36c67d7518e5b3c3cb5ea74e8d98b64c686daa3cba15
[INFO] running `Command { std: "docker" "start" "-a" "b41e9ca5282704a1bebd36c67d7518e5b3c3cb5ea74e8d98b64c686daa3cba15", kill_on_drop: false }`
[INFO] [stderr]    Compiling thunky v0.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/lib.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | type Cb<T, E> = Box<Fn(&Result<T, E>) -> () + Send + Sync>;
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Result<T, E>) -> () + Send + Sync`
[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/lib.rs:4:24
[INFO] [stdout]   |
[INFO] [stdout] 4 | type RunCb<T, E> = Box<Fn(&Thunky<T, E>) -> () + Send + Sync>;
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Thunky<T, E>) -> () + Send + Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/lib.rs:8:27
[INFO] [stdout]   |
[INFO] [stdout] 8 |   state: Mutex<Option<Box<State<T, E> + Send + Sync>>>,
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn State<T, E> + Send + Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/lib.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | type Cb<T, E> = Box<Fn(&Result<T, E>) -> () + Send + Sync>;
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Result<T, E>) -> () + Send + Sync`
[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/lib.rs:4:24
[INFO] [stdout]   |
[INFO] [stdout] 4 | type RunCb<T, E> = Box<Fn(&Thunky<T, E>) -> () + Send + Sync>;
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Thunky<T, E>) -> () + Send + Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/lib.rs:8:27
[INFO] [stdout]   |
[INFO] [stdout] 8 |   state: Mutex<Option<Box<State<T, E> + Send + Sync>>>,
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn State<T, E> + Send + Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.72s
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b41e9ca5282704a1bebd36c67d7518e5b3c3cb5ea74e8d98b64c686daa3cba15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b41e9ca5282704a1bebd36c67d7518e5b3c3cb5ea74e8d98b64c686daa3cba15", kill_on_drop: false }`
[INFO] [stdout] b41e9ca5282704a1bebd36c67d7518e5b3c3cb5ea74e8d98b64c686daa3cba15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] a9c95bf130271862c511754098f3125812ffd35da3c70e60e185895106d8ac7c
[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" "a9c95bf130271862c511754098f3125812ffd35da3c70e60e185895106d8ac7c", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/lib.rs:3:21
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr] 3 | type Cb<T, E> = Box<Fn(&Result<T, E>) -> () + Send + Sync>;
[INFO] [stdout] 
[INFO] [stderr]   |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Result<T, E>) -> () + Send + Sync`
[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/lib.rs:4:24
[INFO] [stderr]   |
[INFO] [stderr] 4 | type RunCb<T, E> = Box<Fn(&Thunky<T, E>) -> () + Send + Sync>;
[INFO] [stderr]   |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Thunky<T, E>) -> () + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/lib.rs:8:27
[INFO] [stderr]   |
[INFO] [stderr] 8 |   state: Mutex<Option<Box<State<T, E> + Send + Sync>>>,
[INFO] [stderr]   |                           ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn State<T, E> + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/lib.rs:3:21
[INFO] [stderr]   |
[INFO] [stderr] 3 | type Cb<T, E> = Box<Fn(&Result<T, E>) -> () + Send + Sync>;
[INFO] [stderr]   |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Result<T, E>) -> () + Send + Sync`
[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/lib.rs:4:24
[INFO] [stderr]   |
[INFO] [stderr] 4 | type RunCb<T, E> = Box<Fn(&Thunky<T, E>) -> () + Send + Sync>;
[INFO] [stderr]   |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Thunky<T, E>) -> () + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/lib.rs:8:27
[INFO] [stderr]   |
[INFO] [stderr] 8 |   state: Mutex<Option<Box<State<T, E> + Send + Sync>>>,
[INFO] [stderr]   |                           ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn State<T, E> + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/thunky-3aae3c2c1a89b9ab
[INFO] [stderr]    Doc-tests thunky
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - Thunky<T, E>::cache (line 61) ... ok
[INFO] [stdout] test src/lib.rs - Thunky<T, E>::new (line 19) ... ok
[INFO] [stdout] test src/lib.rs - Thunky<T, E>::run (line 141) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a9c95bf130271862c511754098f3125812ffd35da3c70e60e185895106d8ac7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9c95bf130271862c511754098f3125812ffd35da3c70e60e185895106d8ac7c", kill_on_drop: false }`
[INFO] [stdout] a9c95bf130271862c511754098f3125812ffd35da3c70e60e185895106d8ac7c