[INFO] fetching crate ec-client 0.1.0...
[INFO] checking ec-client-0.1.0 against try#05c0158cca4d7ab383df6c11b9cc128ebf3730be for pr-156977
[INFO] extracting crate ec-client 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate ec-client 0.1.0
[INFO] finished tweaking crates.io crate ec-client 0.1.0
[INFO] tweaked toml for crates.io crate ec-client 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ec-client 0.1.0 on toolchain 05c0158cca4d7ab383df6c11b9cc128ebf3730be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+05c0158cca4d7ab383df6c11b9cc128ebf3730be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+05c0158cca4d7ab383df6c11b9cc128ebf3730be" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 195 packages to latest compatible versions
[INFO] [stderr]       Adding reqwest v0.9.24 (available: v0.13.4)
[INFO] [stderr]       Adding serde_cbor v0.9.0 (available: v0.11.2)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (available: v0.10.2+wasi-snapshot-preview1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+05c0158cca4d7ab383df6c11b9cc128ebf3730be" "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/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] b8338c0280a25d334c2ef9070bf9bdfeb38307e7e2126db5dd617420bf43e3fa
[INFO] running `Command { std: "docker" "start" "b8338c0280a25d334c2ef9070bf9bdfeb38307e7e2126db5dd617420bf43e3fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b8338c0280a25d334c2ef9070bf9bdfeb38307e7e2126db5dd617420bf43e3fa" "/opt/rustwide/cargo-home/bin/cargo" "+05c0158cca4d7ab383df6c11b9cc128ebf3730be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8338c0280a25d334c2ef9070bf9bdfeb38307e7e2126db5dd617420bf43e3fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b8338c0280a25d334c2ef9070bf9bdfeb38307e7e2126db5dd617420bf43e3fa" "/opt/rustwide/cargo-home/bin/cargo" "+05c0158cca4d7ab383df6c11b9cc128ebf3730be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.118
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking object v0.37.3
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[INFO] [stderr]     Checking half v1.8.3
[INFO] [stderr]     Checking serde_bytes v0.11.19
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking hyper v0.12.36
[INFO] [stderr]     Checking backtrace v0.3.76
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]    Compiling zerovec-derive v0.11.3
[INFO] [stderr]    Compiling displaydoc v0.2.6
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling zerofrom-derive v0.1.7
[INFO] [stderr]    Compiling yoke-derive v0.8.2
[INFO] [stderr]     Checking openssl v0.10.81
[INFO] [stderr]     Checking zerofrom v0.1.8
[INFO] [stderr]     Checking yoke v0.8.3
[INFO] [stderr]     Checking zerotrie v0.2.4
[INFO] [stderr]     Checking zerovec v0.11.6
[INFO] [stderr]     Checking tinystr v0.8.3
[INFO] [stderr]     Checking potential_utf v0.1.5
[INFO] [stderr]     Checking icu_collections v2.2.0
[INFO] [stderr]     Checking icu_locale_core v2.2.0
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking icu_provider v2.2.0
[INFO] [stderr]     Checking icu_properties v2.2.0
[INFO] [stderr]     Checking icu_normalizer v2.2.0
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking serde_cbor v0.9.0
[INFO] [stderr]     Checking idna_adapter v1.2.2
[INFO] [stderr]     Checking idna v1.1.0
[INFO] [stderr]     Checking url v2.5.8
[INFO] [stderr]     Checking native-tls v0.2.18
[INFO] [stderr]     Checking publicsuffix v1.5.6
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking reqwest v0.9.24
[INFO] [stderr]     Checking ec-client v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `from_slice`
[INFO] [stdout]  --> src/lib.rs:7:18
[INFO] [stdout]   |
[INFO] [stdout] 7 | use serde_cbor::{from_slice, to_vec};
[INFO] [stdout]   |                  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `from_slice`
[INFO] [stdout]  --> src/lib.rs:7:18
[INFO] [stdout]   |
[INFO] [stdout] 7 | use serde_cbor::{from_slice, to_vec};
[INFO] [stdout]   |                  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `resp`
[INFO] [stdout]   --> src/lib.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let resp = client
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_resp`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `resp`
[INFO] [stdout]   --> src/lib.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let resp = client
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_resp`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.58s
[INFO] running `Command { std: "docker" "inspect" "b8338c0280a25d334c2ef9070bf9bdfeb38307e7e2126db5dd617420bf43e3fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8338c0280a25d334c2ef9070bf9bdfeb38307e7e2126db5dd617420bf43e3fa", kill_on_drop: false }`
[INFO] [stdout] b8338c0280a25d334c2ef9070bf9bdfeb38307e7e2126db5dd617420bf43e3fa
