[INFO] crate amp-async 0.1.2 is already in cache
[INFO] testing amp-async-0.1.2 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate amp-async 0.1.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate amp-async 0.1.2 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate amp-async 0.1.2
[INFO] finished tweaking crates.io crate amp-async 0.1.2
[INFO] tweaked toml for crates.io crate amp-async 0.1.2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate amp-async 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f858cde2b00325a2062261ba504b3d16afd9396919848f7997c104257e91c6ac
[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" "f858cde2b00325a2062261ba504b3d16afd9396919848f7997c104257e91c6ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f858cde2b00325a2062261ba504b3d16afd9396919848f7997c104257e91c6ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f858cde2b00325a2062261ba504b3d16afd9396919848f7997c104257e91c6ac", kill_on_drop: false }`
[INFO] [stdout] f858cde2b00325a2062261ba504b3d16afd9396919848f7997c104257e91c6ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17f014e9fff87d222518e4d66eda1b393932b6a2005653e510004a4cd99c9ca8
[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" "17f014e9fff87d222518e4d66eda1b393932b6a2005653e510004a4cd99c9ca8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling arc-swap v0.4.4
[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
[INFO] [stderr]    Compiling futures-core v0.3.1
[INFO] [stderr]    Compiling futures-sink v0.3.1
[INFO] [stderr]    Compiling pin-project-lite v0.1.1
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling bytes v0.5.2
[INFO] [stderr]    Compiling pin-utils v0.1.0-alpha.4
[INFO] [stderr]    Compiling futures-task v0.3.1
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling signal-hook-registry v1.2.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling tokio-macros v0.2.0
[INFO] [stderr]    Compiling tokio v0.2.1
[INFO] [stderr]    Compiling futures-macro v0.3.1
[INFO] [stderr]    Compiling futures-util v0.3.1
[INFO] [stderr]    Compiling tokio-util v0.2.0
[INFO] [stderr]    Compiling amp-async v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.16s
[INFO] running `Command { std: "docker" "inspect" "17f014e9fff87d222518e4d66eda1b393932b6a2005653e510004a4cd99c9ca8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17f014e9fff87d222518e4d66eda1b393932b6a2005653e510004a4cd99c9ca8", kill_on_drop: false }`
[INFO] [stdout] 17f014e9fff87d222518e4d66eda1b393932b6a2005653e510004a4cd99c9ca8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0f964a41be64ffbb565514ad0f0815bb76ecc783c0e9f4ac0e8e9074f9bf92d
[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" "a0f964a41be64ffbb565514ad0f0815bb76ecc783c0e9f4ac0e8e9074f9bf92d", kill_on_drop: false }`
[INFO] [stderr]    Compiling amp-async v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `tokio::codec`
[INFO] [stdout]    --> src/codecs.rs:166:16
[INFO] [stdout]     |
[INFO] [stdout] 166 |     use tokio::codec::{Decoder, Encoder};
[INFO] [stdout]     |                ^^^^^ could not find `codec` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `decode` found for struct `codecs::Codec<std::vec::Vec<_>>` in the current scope
[INFO] [stdout]    --> src/codecs.rs:186:27
[INFO] [stdout]     |
[INFO] [stdout] 11  | pub struct Codec<D = Vec<(Bytes, Bytes)>> {
[INFO] [stdout]     | ----------------------------------------- method `decode` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 186 |         let frame = codec.decode(&mut buf).unwrap().unwrap();
[INFO] [stdout]     |                           ^^^^^^ method not found in `codecs::Codec<std::vec::Vec<_>>`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout]     = note: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]             `use tokio_util::codec::Decoder;`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `encode` found for struct `codecs::Codec<_>` in the current scope
[INFO] [stdout]    --> src/codecs.rs:204:15
[INFO] [stdout]     |
[INFO] [stdout] 11  | pub struct Codec<D = Vec<(Bytes, Bytes)>> {
[INFO] [stdout]     | ----------------------------------------- method `encode` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 204 |         codec.encode(WWW_EXAMPLE_DEC.to_vec(), &mut buf).unwrap();
[INFO] [stdout]     |               ^^^^^^ method not found in `codecs::Codec<_>`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout]     = note: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]             `use tokio_util::codec::Encoder;`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `amp-async`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a0f964a41be64ffbb565514ad0f0815bb76ecc783c0e9f4ac0e8e9074f9bf92d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0f964a41be64ffbb565514ad0f0815bb76ecc783c0e9f4ac0e8e9074f9bf92d", kill_on_drop: false }`
[INFO] [stdout] a0f964a41be64ffbb565514ad0f0815bb76ecc783c0e9f4ac0e8e9074f9bf92d