[INFO] fetching crate grant 0.0.1-beta.3...
[INFO] checking grant-0.0.1-beta.3 against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] extracting crate grant 0.0.1-beta.3 into /workspace/builds/worker-7-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-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate grant 0.0.1-beta.3 on toolchain 93086cfebfccb79083c59d0d3b2052944bba643c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec6230debff6898a6ae1759fde9fbb688fe3e9523a547abc0ffe5b763954407a
[INFO] running `Command { std: "docker" "start" "-a" "ec6230debff6898a6ae1759fde9fbb688fe3e9523a547abc0ffe5b763954407a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec6230debff6898a6ae1759fde9fbb688fe3e9523a547abc0ffe5b763954407a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec6230debff6898a6ae1759fde9fbb688fe3e9523a547abc0ffe5b763954407a", kill_on_drop: false }`
[INFO] [stdout] ec6230debff6898a6ae1759fde9fbb688fe3e9523a547abc0ffe5b763954407a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 65f218064fb5bebed98dcc1e6444ab4936077bc1b453e16a467ef6ee631f3301
[INFO] running `Command { std: "docker" "start" "-a" "65f218064fb5bebed98dcc1e6444ab4936077bc1b453e16a467ef6ee631f3301", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling syn v1.0.81
[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-macro v0.3.17
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]     Checking futures-sink v0.3.17
[INFO] [stderr]     Checking ppv-lite86 v0.2.15
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]    Compiling tokio v1.13.1
[INFO] [stderr]     Checking crypto-mac v0.11.1
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]     Checking unicode-bidi v0.3.7
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking futures-io v0.3.17
[INFO] [stderr]     Checking hmac v0.11.0
[INFO] [stderr]     Checking md-5 v0.9.1
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking siphasher v0.3.7
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]     Checking phf_shared v0.10.0
[INFO] [stderr]     Checking phf v0.10.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling unindent v0.1.7
[INFO] [stderr]     Checking fsio v0.3.0
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking predicates-core v1.0.2
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking envmnt v0.9.1
[INFO] [stderr]     Checking ascii_table v3.0.2
[INFO] [stderr]    Compiling indoc v1.0.3
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking socket2 v0.4.2
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking termtree v0.2.3
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking predicates-tree v1.0.4
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking stringprep v0.1.2
[INFO] [stderr]     Checking postgres-protocol v0.6.2
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking postgres-types v0.2.2
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking predicates v2.1.0
[INFO] [stderr]     Checking assert_cmd v2.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking tokio-util v0.6.9
[INFO] [stderr]     Checking structopt v0.3.25
[INFO] [stderr]     Checking serde v1.0.130
[INFO] [stderr]     Checking futures-executor v0.3.17
[INFO] [stderr]     Checking futures v0.3.17
[INFO] [stderr]     Checking tokio-postgres v0.7.5
[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_structs)]` (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_structs)]` (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" "65f218064fb5bebed98dcc1e6444ab4936077bc1b453e16a467ef6ee631f3301", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65f218064fb5bebed98dcc1e6444ab4936077bc1b453e16a467ef6ee631f3301", kill_on_drop: false }`
[INFO] [stdout] 65f218064fb5bebed98dcc1e6444ab4936077bc1b453e16a467ef6ee631f3301
