[INFO] fetching crate silver_surf 0.1.4...
[INFO] checking silver_surf-0.1.4 against try#169954edd744527414c631e9af1bbdc537b0cdf2 for pr-75192
[INFO] extracting crate silver_surf 0.1.4 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate silver_surf 0.1.4 on toolchain 169954edd744527414c631e9af1bbdc537b0cdf2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate silver_surf 0.1.4
[INFO] finished tweaking crates.io crate silver_surf 0.1.4
[INFO] tweaked toml for crates.io crate silver_surf 0.1.4 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded omnom v2.1.2
[INFO] [stderr]   Downloaded async-h1 v1.1.2
[INFO] [stderr]   Downloaded http-client v2.0.0
[INFO] [stderr]   Downloaded http-types v1.3.1
[INFO] [stderr]   Downloaded sluice v0.5.2
[INFO] [stderr]   Downloaded isahc v0.8.2
[INFO] [stderr]   Downloaded surf v2.0.0-alpha.1
[INFO] [stderr]   Downloaded libnghttp2-sys v0.1.4+1.41.0
[INFO] [stderr]   Downloaded isahc v0.9.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df57a8634a079640f5d51a45d1589c4103847631975ffdee8c30793572156df8
[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" "df57a8634a079640f5d51a45d1589c4103847631975ffdee8c30793572156df8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df57a8634a079640f5d51a45d1589c4103847631975ffdee8c30793572156df8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df57a8634a079640f5d51a45d1589c4103847631975ffdee8c30793572156df8", kill_on_drop: false }`
[INFO] [stdout] df57a8634a079640f5d51a45d1589c4103847631975ffdee8c30793572156df8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 44efc1c2930e898de96a290653887661f2c01ec174fd74b73a685210a088d67e
[INFO] running `Command { std: "docker" "start" "-a" "44efc1c2930e898de96a290653887661f2c01ec174fd74b73a685210a088d67e", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.67
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[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking fastrand v1.3.4
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
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[INFO] [stderr]    Compiling serde v1.0.115
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[INFO] [stderr]    Compiling version_check v0.9.2
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[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]    Compiling curl v0.4.33
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking infer v0.1.7
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling isahc v0.9.8
[INFO] [stderr]    Compiling isahc v0.8.2
[INFO] [stderr]     Checking dtoa v0.4.6
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.4+1.41.0
[INFO] [stderr]     Checking tracing-core v0.1.15
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[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling libz-sys v1.1.0
[INFO] [stderr]    Compiling curl-sys v0.4.36+curl-7.71.1
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking futures-lite v0.1.11
[INFO] [stderr]     Checking omnom v2.1.2
[INFO] [stderr]     Checking byte-pool v0.2.2
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking cookie v0.12.0
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking async-io v0.1.11
[INFO] [stderr]     Checking blocking v0.5.2
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking async-executor v0.1.2
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.67
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.67
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.67
[INFO] [stderr]     Checking wasm-bindgen v0.2.67
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking tracing v0.1.19
[INFO] [stderr]     Checking js-sys v0.3.44
[INFO] [stderr]     Checking pin-project v0.4.23
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[INFO] [stderr]     Checking web-sys v0.3.44
[INFO] [stderr]     Checking sluice v0.5.2
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking gloo-timers v0.2.1
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]     Checking async-std v1.6.3
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking http-types v1.3.1
[INFO] [stderr]     Checking async-native-tls v0.3.3
[INFO] [stderr]     Checking async-h1 v1.1.2
[INFO] [stderr]     Checking http-client v2.0.0
[INFO] [stderr]     Checking surf v2.0.0-alpha.1
[INFO] [stderr]     Checking silver_surf v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 24s
[INFO] running `Command { std: "docker" "inspect" "44efc1c2930e898de96a290653887661f2c01ec174fd74b73a685210a088d67e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44efc1c2930e898de96a290653887661f2c01ec174fd74b73a685210a088d67e", kill_on_drop: false }`
[INFO] [stdout] 44efc1c2930e898de96a290653887661f2c01ec174fd74b73a685210a088d67e