[INFO] fetching crate algorithm-problem-client 0.6.0...
[INFO] checking algorithm-problem-client-0.6.0 against master#b286722878e18db29a7fbe672be7c4d3b02e8e4d for pr-127655
[INFO] extracting crate algorithm-problem-client 0.6.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate algorithm-problem-client 0.6.0 on toolchain b286722878e18db29a7fbe672be7c4d3b02e8e4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate algorithm-problem-client 0.6.0
[INFO] finished tweaking crates.io crate algorithm-problem-client 0.6.0
[INFO] tweaked toml for crates.io crate algorithm-problem-client 0.6.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 171 packages to latest compatible versions
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.6.0)
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[INFO] [stderr]       Adding html5ever v0.25.2 (latest: v0.27.0)
[INFO] [stderr]       Adding http v0.1.21 (latest: v1.1.0)
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[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7bf5bd46492e36d251986f182cf9c95bc8d32487ac4f072fe23dc2d892874e2
[INFO] running `Command { std: "docker" "start" "-a" "b7bf5bd46492e36d251986f182cf9c95bc8d32487ac4f072fe23dc2d892874e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7bf5bd46492e36d251986f182cf9c95bc8d32487ac4f072fe23dc2d892874e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7bf5bd46492e36d251986f182cf9c95bc8d32487ac4f072fe23dc2d892874e2", kill_on_drop: false }`
[INFO] [stdout] b7bf5bd46492e36d251986f182cf9c95bc8d32487ac4f072fe23dc2d892874e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 65dedabfbdc6f9ce18807921bfc1541e7ee941ed68178ac3ec264a9064976022
[INFO] running `Command { std: "docker" "start" "-a" "65dedabfbdc6f9ce18807921bfc1541e7ee941ed68178ac3ec264a9064976022", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
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[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]     Checking value-bag v1.9.0
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[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
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[INFO] [stderr]    Compiling unicase v2.7.0
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[INFO] [stderr]    Compiling syn v2.0.71
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[INFO] [stderr]    Compiling curl-sys v0.4.73+curl-8.8.0
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[INFO] [stderr]     Checking algorithm-problem-client v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `url` is never used
[INFO] [stdout]   --> src/util.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub trait Problem {
[INFO] [stdout]    |           ------- method in this trait
[INFO] [stdout] 22 |     fn url(&self) -> String;
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.53s
[INFO] running `Command { std: "docker" "inspect" "65dedabfbdc6f9ce18807921bfc1541e7ee941ed68178ac3ec264a9064976022", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65dedabfbdc6f9ce18807921bfc1541e7ee941ed68178ac3ec264a9064976022", kill_on_drop: false }`
[INFO] [stdout] 65dedabfbdc6f9ce18807921bfc1541e7ee941ed68178ac3ec264a9064976022
[INFO] checking algorithm-problem-client-0.6.0 against try#6a5749073f2ebf59d7740d30e50a932a85756ee7 for pr-127655
[INFO] extracting crate algorithm-problem-client 0.6.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate algorithm-problem-client 0.6.0 on toolchain 6a5749073f2ebf59d7740d30e50a932a85756ee7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6a5749073f2ebf59d7740d30e50a932a85756ee7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate algorithm-problem-client 0.6.0
[INFO] finished tweaking crates.io crate algorithm-problem-client 0.6.0
[INFO] tweaked toml for crates.io crate algorithm-problem-client 0.6.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6a5749073f2ebf59d7740d30e50a932a85756ee7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 171 packages to latest compatible versions
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.6.0)
[INFO] [stderr]       Adding bytes v0.4.12 (latest: v1.6.1)
[INFO] [stderr]       Adding cfg-if v0.1.10 (latest: v1.0.0)
[INFO] [stderr]       Adding convert_case v0.4.0 (latest: v0.6.0)
[INFO] [stderr]       Adding crossbeam-channel v0.3.9 (latest: v0.5.13)
[INFO] [stderr]       Adding crossbeam-utils v0.6.6 (latest: v0.8.20)
[INFO] [stderr]       Adding cssparser v0.27.2 (latest: v0.34.0)
[INFO] [stderr]       Adding dtoa v0.4.8 (latest: v1.0.9)
[INFO] [stderr]       Adding futures v0.1.31 (latest: v0.3.30)
[INFO] [stderr]       Adding getrandom v0.1.16 (latest: v0.2.15)
[INFO] [stderr]       Adding hermit-abi v0.3.9 (latest: v0.4.0)
[INFO] [stderr]       Adding html5ever v0.25.2 (latest: v0.27.0)
[INFO] [stderr]       Adding http v0.1.21 (latest: v1.1.0)
[INFO] [stderr]       Adding idna v0.5.0 (latest: v1.0.2)
[INFO] [stderr]       Adding isahc v0.7.6 (latest: v1.7.2)
[INFO] [stderr]       Adding itoa v0.4.8 (latest: v1.0.11)
[INFO] [stderr]       Adding markup5ever v0.10.1 (latest: v0.12.1)
[INFO] [stderr]       Adding phf v0.8.0 (latest: v0.11.2)
[INFO] [stderr]       Adding phf_codegen v0.8.0 (latest: v0.11.2)
[INFO] [stderr]       Adding phf_generator v0.8.0 (latest: v0.11.2)
[INFO] [stderr]       Adding phf_generator v0.10.0 (latest: v0.11.2)
[INFO] [stderr]       Adding phf_macros v0.8.0 (latest: v0.11.2)
[INFO] [stderr]       Adding phf_shared v0.8.0 (latest: v0.11.2)
[INFO] [stderr]       Adding phf_shared v0.10.0 (latest: v0.11.2)
[INFO] [stderr]       Adding rand v0.7.3 (latest: v0.8.5)
[INFO] [stderr]       Adding rand_chacha v0.2.2 (latest: v0.3.1)
[INFO] [stderr]       Adding rand_core v0.5.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_hc v0.2.0 (latest: v0.3.2)
[INFO] [stderr]       Adding rand_pcg v0.2.1 (latest: v0.3.1)
[INFO] [stderr]       Adding scraper v0.12.0 (latest: v0.19.0)
[INFO] [stderr]       Adding selectors v0.22.0 (latest: v0.25.0)
[INFO] [stderr]       Adding serde_urlencoded v0.6.1 (latest: v0.7.1)
[INFO] [stderr]       Adding servo_arc v0.1.1 (latest: v0.3.0)
[INFO] [stderr]       Adding siphasher v0.3.11 (latest: v1.0.1)
[INFO] [stderr]       Adding sluice v0.4.2 (latest: v0.5.5)
[INFO] [stderr]       Adding surf v1.0.3 (latest: v2.3.2)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.71)
[INFO] [stderr]       Adding wasi v0.9.0+wasi-snapshot-preview1 (latest: v0.13.1+wasi-0.2.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.1+wasi-0.2.0)
[INFO] [stderr]       Adding wasm-bindgen-futures v0.3.27 (latest: v0.4.42)
[INFO] [stderr]       Adding windows-core v0.52.0 (latest: v0.58.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6a5749073f2ebf59d7740d30e50a932a85756ee7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+6a5749073f2ebf59d7740d30e50a932a85756ee7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f8a8474598e71a331d2951976d201e818a62f1d68abc6ac44b3752e4ca02bf11
[INFO] running `Command { std: "docker" "start" "-a" "f8a8474598e71a331d2951976d201e818a62f1d68abc6ac44b3752e4ca02bf11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8a8474598e71a331d2951976d201e818a62f1d68abc6ac44b3752e4ca02bf11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8a8474598e71a331d2951976d201e818a62f1d68abc6ac44b3752e4ca02bf11", kill_on_drop: false }`
[INFO] [stdout] f8a8474598e71a331d2951976d201e818a62f1d68abc6ac44b3752e4ca02bf11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+6a5749073f2ebf59d7740d30e50a932a85756ee7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 533f31cb195e05c38c2b026a3ebf3a7cfe3cff93c716eb54579e6e65420da729
[INFO] running `Command { std: "docker" "start" "-a" "533f31cb195e05c38c2b026a3ebf3a7cfe3cff93c716eb54579e6e65420da729", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
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[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking value-bag v1.9.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]    Compiling version_check v0.9.4
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[INFO] [stderr]     Checking surf v1.0.3
[INFO] [stderr]     Checking scraper v0.12.0
[INFO] [stderr]     Checking algorithm-problem-client v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `url` is never used
[INFO] [stdout]   --> src/util.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub trait Problem {
[INFO] [stdout]    |           ------- method in this trait
[INFO] [stdout] 22 |     fn url(&self) -> String;
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.53s
[INFO] running `Command { std: "docker" "inspect" "533f31cb195e05c38c2b026a3ebf3a7cfe3cff93c716eb54579e6e65420da729", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "533f31cb195e05c38c2b026a3ebf3a7cfe3cff93c716eb54579e6e65420da729", kill_on_drop: false }`
[INFO] [stdout] 533f31cb195e05c38c2b026a3ebf3a7cfe3cff93c716eb54579e6e65420da729
