[INFO] fetching crate forge 0.1.0...
[INFO] checking forge-0.1.0 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate forge 0.1.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate forge 0.1.0 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate forge 0.1.0
[INFO] finished tweaking crates.io crate forge 0.1.0
[INFO] tweaked toml for crates.io crate forge 0.1.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 09879a8b45b86143adcce0978630256893f2ae57e3c07560a8ec237e6c9d002c
[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" "09879a8b45b86143adcce0978630256893f2ae57e3c07560a8ec237e6c9d002c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09879a8b45b86143adcce0978630256893f2ae57e3c07560a8ec237e6c9d002c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09879a8b45b86143adcce0978630256893f2ae57e3c07560a8ec237e6c9d002c", kill_on_drop: false }`
[INFO] [stdout] 09879a8b45b86143adcce0978630256893f2ae57e3c07560a8ec237e6c9d002c
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23726b0ba4cb3deed83c627b27dd2467f35c39253aa0a6d469be7d89ff09077d
[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" "23726b0ba4cb3deed83c627b27dd2467f35c39253aa0a6d469be7d89ff09077d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking rustc_version v0.2.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking forge v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Success`
[INFO] [stdout]  --> src/log.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     Success,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Warning`
[INFO] [stdout]  --> src/log.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     Warning,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `success`
[INFO] [stdout]   --> src/log.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn success(s: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `warn`
[INFO] [stdout]   --> src/log.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn warn(s: &str) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Cargo`
[INFO] [stdout]   --> src/cargo.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Cargo,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `verbose`
[INFO] [stdout]   --> src/cli.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn verbose(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `version`
[INFO] [stdout]   --> src/cli.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn version(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Success`
[INFO] [stdout]  --> src/log.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     Success,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Warning`
[INFO] [stdout]  --> src/log.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     Warning,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `success`
[INFO] [stdout]   --> src/log.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn success(s: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `warn`
[INFO] [stdout]   --> src/log.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn warn(s: &str) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Cargo`
[INFO] [stdout]   --> src/cargo.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Cargo,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `verbose`
[INFO] [stdout]   --> src/cli.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn verbose(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `version`
[INFO] [stdout]   --> src/cli.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn version(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.08s
[INFO] running `Command { std: "docker" "inspect" "23726b0ba4cb3deed83c627b27dd2467f35c39253aa0a6d469be7d89ff09077d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23726b0ba4cb3deed83c627b27dd2467f35c39253aa0a6d469be7d89ff09077d", kill_on_drop: false }`
[INFO] [stdout] 23726b0ba4cb3deed83c627b27dd2467f35c39253aa0a6d469be7d89ff09077d