[INFO] fetching crate grant 0.0.1-beta.3...
[INFO] checking grant-0.0.1-beta.3 against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] extracting crate grant 0.0.1-beta.3 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate grant 0.0.1-beta.3
[INFO] finished tweaking crates.io crate grant 0.0.1-beta.3
[INFO] tweaked toml for crates.io crate grant 0.0.1-beta.3 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate grant 0.0.1-beta.3 on toolchain 0611f7de057c584b8771102fde7aed6c70c71d3b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate grant 0.0.1-beta.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dea12a1ed0bbed06c5e66d17c4ad8440b3b172b2a38d381ada08910769ffe2ed
[INFO] running `Command { std: "docker" "start" "-a" "dea12a1ed0bbed06c5e66d17c4ad8440b3b172b2a38d381ada08910769ffe2ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dea12a1ed0bbed06c5e66d17c4ad8440b3b172b2a38d381ada08910769ffe2ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dea12a1ed0bbed06c5e66d17c4ad8440b3b172b2a38d381ada08910769ffe2ed", kill_on_drop: false }`
[INFO] [stdout] dea12a1ed0bbed06c5e66d17c4ad8440b3b172b2a38d381ada08910769ffe2ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca5d01baff07d20baf564051c21a5ef2ebabd006d21b9bdb863ee6766d762f5b
[INFO] running `Command { std: "docker" "start" "-a" "ca5d01baff07d20baf564051c21a5ef2ebabd006d21b9bdb863ee6766d762f5b", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]     Checking futures-sink v0.3.17
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking ppv-lite86 v0.2.15
[INFO] [stderr]     Checking tinyvec v1.5.1
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[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking cpufeatures v0.2.1
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[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling futures-macro v0.3.17
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[INFO] [stderr]    Compiling tokio v1.13.1
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
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[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]     Checking lock_api v0.4.5
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[INFO] [stderr]     Checking atty v0.2.14
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[INFO] [stderr]     Checking stringprep v0.1.2
[INFO] [stderr]     Checking parking_lot v0.11.2
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[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.11.1
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[INFO] [stderr]     Checking md-5 v0.9.1
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[INFO] [stderr]     Checking postgres-protocol v0.6.2
[INFO] [stderr]     Checking tempfile v3.2.0
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[INFO] [stderr]     Checking predicates v2.1.0
[INFO] [stderr]     Checking postgres-types v0.2.2
[INFO] [stderr]     Checking assert_cmd v2.0.2
[INFO] [stderr]     Checking tokio-util v0.6.9
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.25
[INFO] [stderr]     Checking futures-executor v0.3.17
[INFO] [stderr]     Checking futures v0.3.17
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[INFO] [stderr]     Checking postgres v0.19.2
[INFO] [stderr]     Checking serde_yaml v0.8.21
[INFO] [stderr]     Checking grant v0.0.1-beta.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: struct `CustomError` is never constructed
[INFO] [stdout]  --> src/cli.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct CustomError(String);
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]   = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/cli.rs:5:24
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct CustomError(String);
[INFO] [stdout]   |            ----------- ^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `CustomError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `grant` (lib) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: struct `CustomError` is never constructed
[INFO] [stdout]  --> src/cli.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct CustomError(String);
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]   = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/cli.rs:5:24
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct CustomError(String);
[INFO] [stdout]   |            ----------- ^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `CustomError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `grant` (lib test) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "ca5d01baff07d20baf564051c21a5ef2ebabd006d21b9bdb863ee6766d762f5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca5d01baff07d20baf564051c21a5ef2ebabd006d21b9bdb863ee6766d762f5b", kill_on_drop: false }`
[INFO] [stdout] ca5d01baff07d20baf564051c21a5ef2ebabd006d21b9bdb863ee6766d762f5b
