[INFO] cloning repository https://github.com/fallingyang/rust-lab
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fallingyang/rust-lab" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffallingyang%2Frust-lab", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffallingyang%2Frust-lab'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 994ce59eaba7989ec3f0e616662625726a70d21b
[INFO] checking fallingyang/rust-lab against beta-2021-10-15 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffallingyang%2Frust-lab" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fallingyang/rust-lab on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fallingyang/rust-lab
[INFO] finished tweaking git repo https://github.com/fallingyang/rust-lab
[INFO] tweaked toml for git repo https://github.com/fallingyang/rust-lab written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/fallingyang/rust-lab already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c8a54ec378775c12597d9d1669172d1898b7f08ce3b859454d7610f65e3c634
[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" "4c8a54ec378775c12597d9d1669172d1898b7f08ce3b859454d7610f65e3c634", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c8a54ec378775c12597d9d1669172d1898b7f08ce3b859454d7610f65e3c634", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c8a54ec378775c12597d9d1669172d1898b7f08ce3b859454d7610f65e3c634", kill_on_drop: false }`
[INFO] [stdout] 4c8a54ec378775c12597d9d1669172d1898b7f08ce3b859454d7610f65e3c634
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--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] cab51b40425eda89274c19d87de0b76087a94a42d20309d50f403307b40b42e4
[INFO] running `Command { std: "docker" "start" "-a" "cab51b40425eda89274c19d87de0b76087a94a42d20309d50f403307b40b42e4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.67.0
[INFO] [stderr]     Checking tower-layer v0.3.0
[INFO] [stderr]    Compiling wasmtime-cache v0.20.0
[INFO] [stderr]     Checking pollster v0.2.0
[INFO] [stderr]     Checking importer v0.1.0 (/opt/rustwide/workdir/importer)
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[INFO] [stderr]    Compiling raw-cpuid v7.0.3
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[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.21
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]    Compiling async-stream-impl v0.2.1
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[INFO] [stderr]    Compiling tokio-macros v1.2.0
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[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]     Checking thiserror v1.0.21
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[INFO] [stderr]     Checking futures-executor v0.3.14
[INFO] [stderr]     Checking tower-util v0.3.1
[INFO] [stderr]     Checking serde v1.0.127
[INFO] [stderr]     Checking futures v0.3.14
[INFO] [stderr]    Compiling prost-types v0.6.1
[INFO] [stderr]    Compiling cranelift-entity v0.67.0
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking serde_json v1.0.66
[INFO] [stderr]     Checking tracing-serde v0.1.2
[INFO] [stderr]     Checking toml v0.5.7
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking serde-value v0.7.0
[INFO] [stderr]     Checking serde_yaml v0.8.14
[INFO] [stderr]     Checking cranelift-bforest v0.67.0
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.67.0
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking tracing v0.1.21
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking regalloc v0.0.30
[INFO] [stderr]     Checking tracing-log v0.1.1
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[INFO] [stderr]     Checking rustls v0.19.1
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking nng v1.0.0
[INFO] [stderr]     Checking gimli v0.21.0
[INFO] [stderr]     Checking object v0.21.1
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]     Checking file-per-thread-logger v0.1.4
[INFO] [stderr]     Checking tokio v0.3.2
[INFO] [stderr]     Checking mio-lab v0.1.0 (/opt/rustwide/workdir/mio-lab)
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking mio-serial v3.3.1
[INFO] [stderr]     Checking tracing-subscriber v0.2.14
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> mio-lab/src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::BitOr`
[INFO] [stdout]  --> mio-lab/src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::ops::BitOr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `DATA`
[INFO] [stdout]  --> mio-lab/src/main.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | const DATA: &[u8] = b"Hello world!\n";
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking log4rs v1.0.0
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> mio-lab/src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::BitOr`
[INFO] [stdout]  --> mio-lab/src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::ops::BitOr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `DATA`
[INFO] [stdout]  --> mio-lab/src/main.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | const DATA: &[u8] = b"Hello world!\n";
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking type-info v0.1.0 (/opt/rustwide/workdir/type-info)
[INFO] [stderr]     Checking nng-lab v0.1.0 (/opt/rustwide/workdir/nng-lab)
[INFO] [stdout] error: cannot find derive macro `Serialize` in this scope
[INFO] [stdout]   --> type-info/src/main.rs:54:10
[INFO] [stdout]    |
[INFO] [stdout] 54 | #[derive(Serialize, Deserialize)]
[INFO] [stdout]    |          ^^^^^^^^^ help: a derive macro with a similar name exists: `Deserialize`
[INFO] [stdout]    |
[INFO] [stdout]   ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_derive-1.0.127/src/lib.rs:95:1
[INFO] [stdout]    |
[INFO] [stdout] 95 | pub fn derive_deserialize(input: TokenStream) -> TokenStream {
[INFO] [stdout]    | ------------------------------------------------------------ similarly named derive macro `Deserialize` defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider importing one of these items:
[INFO] [stdout]            crate::from::string::Serialize
[INFO] [stdout]            serde::Serialize
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `type-info` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: cannot find derive macro `Serialize` in this scope
[INFO] [stdout]   --> type-info/src/main.rs:54:10
[INFO] [stdout]    |
[INFO] [stdout] 54 | #[derive(Serialize, Deserialize)]
[INFO] [stdout]    |          ^^^^^^^^^ help: a derive macro with a similar name exists: `Deserialize`
[INFO] [stdout]    |
[INFO] [stdout]   ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_derive-1.0.127/src/lib.rs:95:1
[INFO] [stdout]    |
[INFO] [stdout] 95 | pub fn derive_deserialize(input: TokenStream) -> TokenStream {
[INFO] [stdout]    | ------------------------------------------------------------ similarly named derive macro `Deserialize` defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider importing one of these items:
[INFO] [stdout]            crate::from::string::Serialize
[INFO] [stdout]            serde::Serialize
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> nng-lab/src/main.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |             subscriber(&String::from("127.0.0.1:8080"));
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> nng-lab/src/main.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |             subscriber(&String::from("127.0.0.1:8080"));
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "cab51b40425eda89274c19d87de0b76087a94a42d20309d50f403307b40b42e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cab51b40425eda89274c19d87de0b76087a94a42d20309d50f403307b40b42e4", kill_on_drop: false }`
[INFO] [stdout] cab51b40425eda89274c19d87de0b76087a94a42d20309d50f403307b40b42e4
