[INFO] fetching crate olaf2 0.0.3...
[INFO] checking olaf2-0.0.3 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] extracting crate olaf2 0.0.3 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate olaf2 0.0.3 on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate olaf2 0.0.3
[INFO] finished tweaking crates.io crate olaf2 0.0.3
[INFO] tweaked toml for crates.io crate olaf2 0.0.3 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` has been stabilized in the 1.31 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/nightly/cargo/reference/manifest.html#the-edition-field for more information about using this feature.
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded isatty v0.1.9
[INFO] [stderr]   Downloaded simplelog v0.5.3
[INFO] [stderr]   Downloaded serde_qs v0.4.6
[INFO] [stderr]   Downloaded canonical-path v0.1.1
[INFO] [stderr]   Downloaded abscissa_derive v0.0.2
[INFO] [stderr]   Downloaded oauth2 v2.0.0
[INFO] [stderr]   Downloaded abscissa v0.0.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5d7baa781eb0ea3c4d3c03bb8f729f8ec94ac5f04be07a499be897afcf285422
[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" "5d7baa781eb0ea3c4d3c03bb8f729f8ec94ac5f04be07a499be897afcf285422", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d7baa781eb0ea3c4d3c03bb8f729f8ec94ac5f04be07a499be897afcf285422", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d7baa781eb0ea3c4d3c03bb8f729f8ec94ac5f04be07a499be897afcf285422", kill_on_drop: false }`
[INFO] [stdout] 5d7baa781eb0ea3c4d3c03bb8f729f8ec94ac5f04be07a499be897afcf285422
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3872fd69563ab25910aad969ca102ba423a572c4c23df1f0d8ed2e38e667c79f
[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" "3872fd69563ab25910aad969ca102ba423a572c4c23df1f0d8ed2e38e667c79f", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` has been stabilized in the 1.31 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/nightly/cargo/reference/manifest.html#the-edition-field for more information about using this feature.
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[INFO] [stderr]     Checking olaf2 v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0252]: the name `Serialize` is defined multiple times
[INFO] [stdout]  --> src/msgs.rs:3:33
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde::{de::DeserializeOwned, Serialize};
[INFO] [stdout]   |                                   --------- previous import of the macro `Serialize` here
[INFO] [stdout] 3 | use serde_derive::{Deserialize, Serialize};
[INFO] [stdout]   |                                 ^^^^^^^^^ `Serialize` reimported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Serialize` must be defined only once in the macro namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0252]: the name `Serialize` is defined multiple times
[INFO] [stdout]  --> src/msgs.rs:3:33
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde::{de::DeserializeOwned, Serialize};
[INFO] [stdout]   |                                   --------- previous import of the macro `Serialize` here
[INFO] [stdout] 3 | use serde_derive::{Deserialize, Serialize};
[INFO] [stdout]   |                                 ^^^^^^^^^ `Serialize` reimported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Serialize` must be defined only once in the macro namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `actix_web::server::Server`
[INFO] [stdout]   --> src/client.rs:14:20
[INFO] [stdout]    |
[INFO] [stdout] 14 |     server::{self, Server},
[INFO] [stdout]    |                    ^^^^^^ no `Server` in `server`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `lazy_static::lazy_static`
[INFO] [stdout]   --> src/client.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use lazy_static::lazy_static;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde_derive::Deserialize`
[INFO] [stdout]   --> src/client.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use serde_derive::Deserialize;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::util::*`
[INFO] [stdout]   --> src/client.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | use crate::util::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `actix_web::server::Server`
[INFO] [stdout]   --> src/client.rs:14:20
[INFO] [stdout]    |
[INFO] [stdout] 14 |     server::{self, Server},
[INFO] [stdout]    |                    ^^^^^^ no `Server` in `server`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `de::DeserializeOwned`
[INFO] [stdout]  --> src/msgs.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde::{de::DeserializeOwned, Serialize};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Serialize`
[INFO] [stdout]  --> src/msgs.rs:3:33
[INFO] [stdout]   |
[INFO] [stdout] 3 | use serde_derive::{Deserialize, Serialize};
[INFO] [stdout]   |                                 ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `lazy_static::lazy_static`
[INFO] [stdout]   --> src/client.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use lazy_static::lazy_static;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde_derive::Deserialize`
[INFO] [stdout]   --> src/client.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use serde_derive::Deserialize;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::util::*`
[INFO] [stdout]   --> src/client.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | use crate::util::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `de::DeserializeOwned`
[INFO] [stdout]  --> src/msgs.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde::{de::DeserializeOwned, Serialize};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Serialize`
[INFO] [stdout]  --> src/msgs.rs:3:33
[INFO] [stdout]   |
[INFO] [stdout] 3 | use serde_derive::{Deserialize, Serialize};
[INFO] [stdout]   |                                 ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0252, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0252`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `olaf2`
[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] [stdout] error: aborting due to 2 previous errors; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0252, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0252`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "3872fd69563ab25910aad969ca102ba423a572c4c23df1f0d8ed2e38e667c79f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3872fd69563ab25910aad969ca102ba423a572c4c23df1f0d8ed2e38e667c79f", kill_on_drop: false }`
[INFO] [stdout] 3872fd69563ab25910aad969ca102ba423a572c4c23df1f0d8ed2e38e667c79f