[INFO] fetching crate proffer 1.0.0-rc2... [INFO] checking proffer-1.0.0-rc2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate proffer 1.0.0-rc2 into /workspace/builds/worker-7-tc1/source [INFO] validating manifest of crates.io crate proffer 1.0.0-rc2 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate proffer 1.0.0-rc2 [INFO] finished tweaking crates.io crate proffer 1.0.0-rc2 [INFO] tweaked toml for crates.io crate proffer 1.0.0-rc2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 88 packages [INFO] [stderr] Adding generic-array v0.14.7 (latest: v1.0.0) [INFO] [stderr] Adding glob v0.2.11 (latest: v0.3.1) [INFO] [stderr] Adding humansize v1.1.1 (latest: v2.1.3) [INFO] [stderr] Adding idna v0.1.5 (latest: v0.5.0) [INFO] [stderr] Adding object v0.32.2 (latest: v0.34.0) [INFO] [stderr] Adding percent-encoding v1.0.1 (latest: v2.3.1) [INFO] [stderr] Adding syn v1.0.109 (latest: v2.0.58) [INFO] [stderr] Adding tera v0.11.20 (latest: v1.19.1) [INFO] [stderr] Adding unic-char-property v0.7.0 (latest: v0.9.0) [INFO] [stderr] Adding unic-char-range v0.7.0 (latest: v0.9.0) [INFO] [stderr] Adding unic-common v0.7.0 (latest: v0.9.0) [INFO] [stderr] Adding unic-segment v0.7.0 (latest: v0.9.0) [INFO] [stderr] Adding unic-ucd-segment v0.7.0 (latest: v0.9.0) [INFO] [stderr] Adding unic-ucd-version v0.7.0 (latest: v0.9.0) [INFO] [stderr] Adding url v1.7.2 (latest: v2.5.0) [INFO] [stderr] Adding windows-core v0.52.0 (latest: v0.55.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded tera v0.11.20 [INFO] [stderr] Downloaded unic-char-property v0.7.0 [INFO] [stderr] Downloaded unic-char-range v0.7.0 [INFO] [stderr] Downloaded unic-common v0.7.0 [INFO] [stderr] Downloaded unic-ucd-version v0.7.0 [INFO] [stderr] Downloaded unic-ucd-segment v0.7.0 [INFO] [stderr] Downloaded unic-segment v0.7.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ad5d68a45bba5cd72f6ce9c7f7156457d6fe9cefbfaf0f9989ef0ee4c2ffcd33 [INFO] running `Command { std: "docker" "start" "-a" "ad5d68a45bba5cd72f6ce9c7f7156457d6fe9cefbfaf0f9989ef0ee4c2ffcd33", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ad5d68a45bba5cd72f6ce9c7f7156457d6fe9cefbfaf0f9989ef0ee4c2ffcd33", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ad5d68a45bba5cd72f6ce9c7f7156457d6fe9cefbfaf0f9989ef0ee4c2ffcd33", kill_on_drop: false }` [INFO] [stdout] ad5d68a45bba5cd72f6ce9c7f7156457d6fe9cefbfaf0f9989ef0ee4c2ffcd33 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e92d4b2904ded1644bfd6b4805568af8613c8204bb9136e79856d4094aa7ff8b [INFO] running `Command { std: "docker" "start" "-a" "e92d4b2904ded1644bfd6b4805568af8613c8204bb9136e79856d4094aa7ff8b", kill_on_drop: false }` [INFO] [stderr] Checking unic-char-range v0.7.0 [INFO] [stderr] Checking unic-common v0.7.0 [INFO] [stderr] Compiling error-chain v0.12.4 [INFO] [stderr] Checking unicode-normalization v0.1.23 [INFO] [stderr] Checking unicode-bidi v0.3.15 [INFO] [stderr] Checking matches v0.1.10 [INFO] [stderr] Compiling syn v2.0.58 [INFO] [stderr] Checking backtrace v0.3.71 [INFO] [stderr] Checking percent-encoding v1.0.1 [INFO] [stderr] Checking glob v0.2.11 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking humansize v1.1.1 [INFO] [stderr] Checking unic-ucd-version v0.7.0 [INFO] [stderr] Checking unic-char-property v0.7.0 [INFO] [stderr] Checking unic-ucd-segment v0.7.0 [INFO] [stderr] Checking unic-segment v0.7.0 [INFO] [stderr] Checking idna v0.1.5 [INFO] [stderr] Checking url v1.7.2 [INFO] [stderr] Compiling thiserror-impl v1.0.58 [INFO] [stderr] Compiling serde_derive v1.0.197 [INFO] [stderr] Compiling thiserror v1.0.58 [INFO] [stderr] Compiling pest v2.7.9 [INFO] [stderr] Compiling pest_meta v2.7.9 [INFO] [stderr] Checking serde v1.0.197 [INFO] [stderr] Compiling pest_generator v2.7.9 [INFO] [stderr] Compiling pest_derive v2.7.9 [INFO] [stderr] Checking serde_json v1.0.115 [INFO] [stderr] Checking tera v0.11.20 [INFO] [stderr] Checking proffer v1.0.0-rc2 (/opt/rustwide/workdir) [INFO] [stdout] warning: ambiguous glob re-exports [INFO] [stdout] --> src/lib.rs:53:9 [INFO] [stdout] | [INFO] [stdout] 53 | pub use gen::*; [INFO] [stdout] | ^^^^^^ the name `generics` in the type namespace is first re-exported here [INFO] [stdout] ... [INFO] [stdout] 56 | pub use traits::*; [INFO] [stdout] | --------- but the name `generics` in the type namespace is also re-exported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(ambiguous_glob_reexports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: ambiguous glob re-exports [INFO] [stdout] --> src/lib.rs:53:9 [INFO] [stdout] | [INFO] [stdout] 53 | pub use gen::*; [INFO] [stdout] | ^^^^^^ the name `generics` in the type namespace is first re-exported here [INFO] [stdout] ... [INFO] [stdout] 56 | pub use traits::*; [INFO] [stdout] | --------- but the name `generics` in the type namespace is also re-exported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(ambiguous_glob_reexports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.75s [INFO] running `Command { std: "docker" "inspect" "e92d4b2904ded1644bfd6b4805568af8613c8204bb9136e79856d4094aa7ff8b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e92d4b2904ded1644bfd6b4805568af8613c8204bb9136e79856d4094aa7ff8b", kill_on_drop: false }` [INFO] [stdout] e92d4b2904ded1644bfd6b4805568af8613c8204bb9136e79856d4094aa7ff8b [INFO] checking proffer-1.0.0-rc2 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] extracting crate proffer 1.0.0-rc2 into /workspace/builds/worker-7-tc2/source [INFO] validating manifest of crates.io crate proffer 1.0.0-rc2 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate proffer 1.0.0-rc2 [INFO] finished tweaking crates.io crate proffer 1.0.0-rc2 [INFO] tweaked toml for crates.io crate proffer 1.0.0-rc2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] db00138e45451e3648fce01c47cebae6dfa6a21bf06f464ca0c261b746b06c69 [INFO] running `Command { std: "docker" "start" "-a" "db00138e45451e3648fce01c47cebae6dfa6a21bf06f464ca0c261b746b06c69", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "db00138e45451e3648fce01c47cebae6dfa6a21bf06f464ca0c261b746b06c69", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "db00138e45451e3648fce01c47cebae6dfa6a21bf06f464ca0c261b746b06c69", kill_on_drop: false }` [INFO] [stdout] db00138e45451e3648fce01c47cebae6dfa6a21bf06f464ca0c261b746b06c69 [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 35442986970e944be21203ef184e3861eb71face34f20e4b1a4b432e91e6c2b2 [INFO] running `Command { std: "docker" "start" "-a" "35442986970e944be21203ef184e3861eb71face34f20e4b1a4b432e91e6c2b2", kill_on_drop: false }` [INFO] [stderr] Checking unic-char-range v0.7.0 [INFO] [stderr] Checking unic-common v0.7.0 [INFO] [stderr] Checking unicode-bidi v0.3.15 [INFO] [stderr] Checking unicode-normalization v0.1.23 [INFO] [stderr] Compiling error-chain v0.12.4 [INFO] [stderr] Checking matches v0.1.10 [INFO] [stderr] Checking percent-encoding v1.0.1 [INFO] [stderr] Compiling syn v2.0.58 [INFO] [stderr] Checking backtrace v0.3.71 [INFO] [stderr] Checking glob v0.2.11 [INFO] [stderr] Checking humansize v1.1.1 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking unic-ucd-version v0.7.0 [INFO] [stderr] Checking unic-char-property v0.7.0 [INFO] [stderr] Checking unic-ucd-segment v0.7.0 [INFO] [stderr] Checking idna v0.1.5 [INFO] [stderr] Checking unic-segment v0.7.0 [INFO] [stderr] Checking url v1.7.2 [INFO] [stderr] Compiling thiserror-impl v1.0.58 [INFO] [stderr] Compiling serde_derive v1.0.197 [INFO] [stderr] Compiling thiserror v1.0.58 [INFO] [stderr] Compiling pest v2.7.9 [INFO] [stderr] Compiling pest_meta v2.7.9 [INFO] [stderr] Checking serde v1.0.197 [INFO] [stderr] Compiling pest_generator v2.7.9 [INFO] [stderr] Compiling pest_derive v2.7.9 [INFO] [stderr] Checking serde_json v1.0.115 [INFO] [stderr] Checking tera v0.11.20 [INFO] [stderr] Checking proffer v1.0.0-rc2 (/opt/rustwide/workdir) [INFO] [stdout] warning: ambiguous glob re-exports [INFO] [stdout] --> src/lib.rs:53:9 [INFO] [stdout] | [INFO] [stdout] 53 | pub use gen::*; [INFO] [stdout] | ^^^^^^ the name `generics` in the type namespace is first re-exported here [INFO] [stdout] ... [INFO] [stdout] 56 | pub use traits::*; [INFO] [stdout] | --------- but the name `generics` in the type namespace is also re-exported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(ambiguous_glob_reexports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: ambiguous glob re-exports [INFO] [stdout] --> src/lib.rs:53:9 [INFO] [stdout] | [INFO] [stdout] 53 | pub use gen::*; [INFO] [stdout] | ^^^^^^ the name `generics` in the type namespace is first re-exported here [INFO] [stdout] ... [INFO] [stdout] 56 | pub use traits::*; [INFO] [stdout] | --------- but the name `generics` in the type namespace is also re-exported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(ambiguous_glob_reexports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.53s [INFO] running `Command { std: "docker" "inspect" "35442986970e944be21203ef184e3861eb71face34f20e4b1a4b432e91e6c2b2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "35442986970e944be21203ef184e3861eb71face34f20e4b1a4b432e91e6c2b2", kill_on_drop: false }` [INFO] [stdout] 35442986970e944be21203ef184e3861eb71face34f20e4b1a4b432e91e6c2b2