[INFO] fetching crate prusto 0.2.0...
[INFO] testing prusto-0.2.0 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate prusto 0.2.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate prusto 0.2.0 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate prusto 0.2.0
[INFO] finished tweaking crates.io crate prusto 0.2.0
[INFO] tweaked toml for crates.io crate prusto 0.2.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate prusto 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "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] 88db4da643225d2fdc260b0b1bba78d3bc8c878c2bbc599f9988027d0b937263
[INFO] running `Command { std: "docker" "start" "-a" "88db4da643225d2fdc260b0b1bba78d3bc8c878c2bbc599f9988027d0b937263", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88db4da643225d2fdc260b0b1bba78d3bc8c878c2bbc599f9988027d0b937263", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88db4da643225d2fdc260b0b1bba78d3bc8c878c2bbc599f9988027d0b937263", kill_on_drop: false }`
[INFO] [stdout] 88db4da643225d2fdc260b0b1bba78d3bc8c878c2bbc599f9988027d0b937263
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b0066ef8467b55022f02f7c13e82104581e922b84c36deb5dcc03b2e4ab70ab
[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" "7b0066ef8467b55022f02f7c13e82104581e922b84c36deb5dcc03b2e4ab70ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling futures-core v0.3.5
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling smallvec v1.6.0
[INFO] [stderr]    Compiling cc v1.0.59
[INFO] [stderr]    Compiling arc-swap v0.4.7
[INFO] [stderr]    Compiling futures-sink v0.3.5
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling bytes v1.0.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling pin-project-lite v0.2.1
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling futures-io v0.3.5
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling try-lock v0.2.3
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling tinyvec v0.3.4
[INFO] [stderr]    Compiling httpdate v0.3.2
[INFO] [stderr]    Compiling encoding_rs v0.8.23
[INFO] [stderr]    Compiling tower-service v0.3.0
[INFO] [stderr]    Compiling ipnet v2.3.0
[INFO] [stderr]    Compiling tokio v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling indexmap v1.5.1
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling futures-channel v0.3.5
[INFO] [stderr]    Compiling futures-task v0.3.5
[INFO] [stderr]    Compiling tracing-core v0.1.14
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling form_urlencoded v1.0.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.13
[INFO] [stderr]    Compiling http v0.2.1
[INFO] [stderr]    Compiling iterable v0.4.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stdout] error[E0576]: cannot find associated type `Ok` in trait `Try`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/iterable-0.4.0/src/lib.rs:518:30
[INFO] [stdout]     |
[INFO] [stdout] 518 |         <Self::Item as Try>::Ok: Consumer,
[INFO] [stdout]     |                              ^^ not found in `Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0576]: cannot find associated type `Ok` in trait `Try`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/iterable-0.4.0/src/lib.rs:519:40
[INFO] [stdout]     |
[INFO] [stdout] 519 |         Self::CC<<<Self::Item as Try>::Ok as Consumer>::Item>: GrowableProducer<<<Self::Item as Try>::Ok as Consumer>::Item>,
[INFO] [stdout]     |                                        ^^ not found in `Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0576]: cannot find associated type `Ok` in trait `Try`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/iterable-0.4.0/src/lib.rs:519:103
[INFO] [stdout]     |
[INFO] [stdout] 519 |         Self::CC<<<Self::Item as Try>::Ok as Consumer>::Item>: GrowableProducer<<<Self::Item as Try>::Ok as Consumer>::Item>,
[INFO] [stdout]     |                                                                                                       ^^ not found in `Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0576]: cannot find associated type `Ok` in trait `Try`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/iterable-0.4.0/src/lib.rs:514:88
[INFO] [stdout]     |
[INFO] [stdout] 514 |     fn try_flatten(self) -> <Self::Item as TryExt>::Map<Self::CC<<<Self::Item as Try>::Ok as Consumer>::Item>>
[INFO] [stdout]     |                                                                                        ^^ not found in `Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0576]: cannot find associated type `Ok` in trait `Try`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/iterable-0.4.0/src/lib.rs:521:56
[INFO] [stdout]     |
[INFO] [stdout] 521 |         let mut ret = Self::CC::<<<Self::Item as Try>::Ok as Consumer>::Item>::empty();
[INFO] [stdout]     |                                                        ^^ not found in `Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0576]: cannot find associated type `Ok` in trait `Try`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/iterable-0.4.0/src/lib.rs:526:70
[INFO] [stdout]     |
[INFO] [stdout] 526 |         <Self::Item as TryExt>::Map::<Self::CC<<<Self::Item as Try>::Ok as Consumer>::Item>>::from_ok(ret)
[INFO] [stdout]     |                                                                      ^^ not found in `Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'try_trait_v2'
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/iterable-0.4.0/src/lib.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use std::ops::Try;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #84277 <https://github.com/rust-lang/rust/issues/84277> for more information
[INFO] [stdout]    = help: add `#![feature(try_trait_v2)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'try_trait_v2'
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/iterable-0.4.0/src/lib.rs:215:12
[INFO] [stdout]     |
[INFO] [stdout] 215 |         R: Try<Ok = S>,
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #84277 <https://github.com/rust-lang/rust/issues/84277> for more information
[INFO] [stdout]     = help: add `#![feature(try_trait_v2)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'try_trait_v2'
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/iterable-0.4.0/src/lib.rs:223:12
[INFO] [stdout]     |
[INFO] [stdout] 223 |         R: Try<Ok = ()>,
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #84277 <https://github.com/rust-lang/rust/issues/84277> for more information
[INFO] [stdout]     = help: add `#![feature(try_trait_v2)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'try_trait_v2'
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/iterable-0.4.0/src/util.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Try;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #84277 <https://github.com/rust-lang/rust/issues/84277> for more information
[INFO] [stdout]   = help: add `#![feature(try_trait_v2)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'try_trait_v2'
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/iterable-0.4.0/src/util.rs:3:19
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait TryExt: Try {
[INFO] [stdout]   |                   ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #84277 <https://github.com/rust-lang/rust/issues/84277> for more information
[INFO] [stdout]   = help: add `#![feature(try_trait_v2)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Ok` not found for `Try`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/iterable-0.4.0/src/lib.rs:215:16
[INFO] [stdout]     |
[INFO] [stdout] 215 |         R: Try<Ok = S>,
[INFO] [stdout]     |                ^^ associated type `Ok` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Ok` not found for `Try`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/iterable-0.4.0/src/lib.rs:223:16
[INFO] [stdout]     |
[INFO] [stdout] 223 |         R: Try<Ok = ()>,
[INFO] [stdout]     |                ^^ associated type `Ok` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Ok` not found for `util::TryExt`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/iterable-0.4.0/src/lib.rs:474:19
[INFO] [stdout]     |
[INFO] [stdout] 474 |         R: TryExt<Ok = Self::Item>,
[INFO] [stdout]     |                   ^^ associated type `Ok` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Ok` not found for `util::TryExt`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/iterable-0.4.0/src/lib.rs:486:19
[INFO] [stdout]     |
[INFO] [stdout] 486 |         R: TryExt<Ok = B>,
[INFO] [stdout]     |                   ^^ associated type `Ok` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Ok` not found for `util::TryExt`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/iterable-0.4.0/src/lib.rs:501:19
[INFO] [stdout]     |
[INFO] [stdout] 501 |         R: TryExt<Ok = B>,
[INFO] [stdout]     |                   ^^ associated type `Ok` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Error` not found for `Self`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/iterable-0.4.0/src/util.rs:4:47
[INFO] [stdout]   |
[INFO] [stdout] 4 |     type Map<U>: TryExt<Ok = U, Error = Self::Error>;
[INFO] [stdout]   |                                               ^^^^^ associated type `Error` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Ok` not found for `util::TryExt`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/iterable-0.4.0/src/util.rs:4:25
[INFO] [stdout]   |
[INFO] [stdout] 4 |     type Map<U>: TryExt<Ok = U, Error = Self::Error>;
[INFO] [stdout]   |                         ^^ associated type `Ok` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Error` not found for `util::TryExt`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/iterable-0.4.0/src/util.rs:4:33
[INFO] [stdout]   |
[INFO] [stdout] 4 |     type Map<U>: TryExt<Ok = U, Error = Self::Error>;
[INFO] [stdout]   |                                 ^^^^^ associated type `Error` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 19 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0220, E0576, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0220`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `iterable`
[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" "7b0066ef8467b55022f02f7c13e82104581e922b84c36deb5dcc03b2e4ab70ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b0066ef8467b55022f02f7c13e82104581e922b84c36deb5dcc03b2e4ab70ab", kill_on_drop: false }`
[INFO] [stdout] 7b0066ef8467b55022f02f7c13e82104581e922b84c36deb5dcc03b2e4ab70ab