[INFO] fetching crate megadex_derive 0.1.0...
[INFO] checking megadex_derive-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate megadex_derive 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate megadex_derive 0.1.0 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 megadex_derive 0.1.0
[INFO] finished tweaking crates.io crate megadex_derive 0.1.0
[INFO] tweaked toml for crates.io crate megadex_derive 0.1.0 written to /workspace/builds/worker-1-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]     Updating crates.io index
[INFO] [stderr]      Locking 64 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding idna v0.1.5 (latest: v0.5.0)
[INFO] [stderr]       Adding linux-raw-sys v0.4.13 (latest: v0.6.4)
[INFO] [stderr]       Adding lmdb-rkv v0.11.4 (latest: v0.14.0)
[INFO] [stderr]       Adding lmdb-rkv-sys v0.8.6 (latest: v0.11.2)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding ordered-float v1.1.1 (latest: v4.2.0)
[INFO] [stderr]       Adding percent-encoding v1.0.1 (latest: v2.3.1)
[INFO] [stderr]       Adding proc-macro2 v0.4.30 (latest: v1.0.79)
[INFO] [stderr]       Adding quote v0.6.13 (latest: v1.0.35)
[INFO] [stderr]       Adding rkv v0.8.0 (latest: v0.19.0)
[INFO] [stderr]       Adding syn v0.15.44 (latest: v2.0.58)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding synstructure v0.12.6 (latest: v0.13.1)
[INFO] [stderr]       Adding unicode-xid v0.1.0 (latest: v0.2.4)
[INFO] [stderr]       Adding url v1.7.2 (latest: v2.5.0)
[INFO] [stderr]       Adding uuid v0.7.4 (latest: v1.8.0)
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded lmdb-rkv v0.11.4
[INFO] [stderr]   Downloaded lmdb-rkv-sys v0.8.6
[INFO] [stderr]   Downloaded megadex_rkv v0.1.1
[INFO] [stderr]   Downloaded rkv v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] aa3b0dc16c433c936a4e6338a64219f493cef494fec08454926c2756ffafdc6d
[INFO] running `Command { std: "docker" "start" "-a" "aa3b0dc16c433c936a4e6338a64219f493cef494fec08454926c2756ffafdc6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa3b0dc16c433c936a4e6338a64219f493cef494fec08454926c2756ffafdc6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa3b0dc16c433c936a4e6338a64219f493cef494fec08454926c2756ffafdc6d", kill_on_drop: false }`
[INFO] [stdout] aa3b0dc16c433c936a4e6338a64219f493cef494fec08454926c2756ffafdc6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 0c5ca0aeae6849d4ca89cd23a293c0cf7f634eba3794829d6c236e445bae5894
[INFO] running `Command { std: "docker" "start" "-a" "0c5ca0aeae6849d4ca89cd23a293c0cf7f634eba3794829d6c236e445bae5894", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]    Compiling backtrace v0.3.71
[INFO] [stderr]    Compiling lmdb-rkv-sys v0.8.6
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]     Checking megadex_derive v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | use syn;
[INFO] [stdout]    |     ^^^ the item `syn` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `proc_macro2` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | use proc_macro2;
[INFO] [stdout]    |     ^^^^^^^^^^^ the item `proc_macro2` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | use syn;
[INFO] [stdout]    |     ^^^ the item `syn` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `proc_macro2` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | use proc_macro2;
[INFO] [stdout]    |     ^^^^^^^^^^^ the item `proc_macro2` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking lmdb-rkv v0.11.4
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking rkv v0.8.0
[INFO] [stderr]     Checking megadex_rkv v0.1.1
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | use syn;
[INFO] [stdout]    |     ^^^ the item `syn` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `proc_macro2` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | use proc_macro2;
[INFO] [stdout]    |     ^^^^^^^^^^^ the item `proc_macro2` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.39s
[INFO] running `Command { std: "docker" "inspect" "0c5ca0aeae6849d4ca89cd23a293c0cf7f634eba3794829d6c236e445bae5894", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c5ca0aeae6849d4ca89cd23a293c0cf7f634eba3794829d6c236e445bae5894", kill_on_drop: false }`
[INFO] [stdout] 0c5ca0aeae6849d4ca89cd23a293c0cf7f634eba3794829d6c236e445bae5894
[INFO] checking megadex_derive-0.1.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate megadex_derive 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate megadex_derive 0.1.0 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 megadex_derive 0.1.0
[INFO] finished tweaking crates.io crate megadex_derive 0.1.0
[INFO] tweaked toml for crates.io crate megadex_derive 0.1.0 written to /workspace/builds/worker-1-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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] cb7c225e9ad5b6c8044d51ca520980d213de6baa58a69205637a1c79331f8290
[INFO] running `Command { std: "docker" "start" "-a" "cb7c225e9ad5b6c8044d51ca520980d213de6baa58a69205637a1c79331f8290", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb7c225e9ad5b6c8044d51ca520980d213de6baa58a69205637a1c79331f8290", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb7c225e9ad5b6c8044d51ca520980d213de6baa58a69205637a1c79331f8290", kill_on_drop: false }`
[INFO] [stdout] cb7c225e9ad5b6c8044d51ca520980d213de6baa58a69205637a1c79331f8290
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 382d66933bfb4c1e4c2078f39326bac9d9389a8cccbd06d33b11bd44bbb1d542
[INFO] running `Command { std: "docker" "start" "-a" "382d66933bfb4c1e4c2078f39326bac9d9389a8cccbd06d33b11bd44bbb1d542", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling lmdb-rkv-sys v0.8.6
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling backtrace v0.3.71
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]     Checking megadex_derive v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | use syn;
[INFO] [stdout]    |     ^^^ the item `syn` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `proc_macro2` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | use proc_macro2;
[INFO] [stdout]    |     ^^^^^^^^^^^ the item `proc_macro2` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | use syn;
[INFO] [stdout]    |     ^^^ the item `syn` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `proc_macro2` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | use proc_macro2;
[INFO] [stdout]    |     ^^^^^^^^^^^ the item `proc_macro2` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking lmdb-rkv v0.11.4
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking rkv v0.8.0
[INFO] [stderr]     Checking megadex_rkv v0.1.1
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | use syn;
[INFO] [stdout]    |     ^^^ the item `syn` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `proc_macro2` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | use proc_macro2;
[INFO] [stdout]    |     ^^^^^^^^^^^ the item `proc_macro2` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.48s
[INFO] running `Command { std: "docker" "inspect" "382d66933bfb4c1e4c2078f39326bac9d9389a8cccbd06d33b11bd44bbb1d542", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "382d66933bfb4c1e4c2078f39326bac9d9389a8cccbd06d33b11bd44bbb1d542", kill_on_drop: false }`
[INFO] [stdout] 382d66933bfb4c1e4c2078f39326bac9d9389a8cccbd06d33b11bd44bbb1d542