[INFO] fetching crate nested_qs 0.1.2...
[INFO] checking nested_qs-0.1.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate nested_qs 0.1.2 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate nested_qs 0.1.2 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 nested_qs 0.1.2
[INFO] finished tweaking crates.io crate nested_qs 0.1.2
[INFO] tweaked toml for crates.io crate nested_qs 0.1.2 written to /workspace/builds/worker-6-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 30 packages
[INFO] [stderr]       Adding error-chain v0.11.0 (latest: v0.12.4)
[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 url v1.7.2 (latest: v2.5.0)
[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 error-chain v0.11.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 2dbfe138a05c7613c4aac09ba0d1501bf6704920faf88c06e1c47b97e74203de
[INFO] running `Command { std: "docker" "start" "-a" "2dbfe138a05c7613c4aac09ba0d1501bf6704920faf88c06e1c47b97e74203de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2dbfe138a05c7613c4aac09ba0d1501bf6704920faf88c06e1c47b97e74203de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dbfe138a05c7613c4aac09ba0d1501bf6704920faf88c06e1c47b97e74203de", kill_on_drop: false }`
[INFO] [stdout] 2dbfe138a05c7613c4aac09ba0d1501bf6704920faf88c06e1c47b97e74203de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] d734e5210951b72c27d3f9be5389a0acd07a48970b74b85c8a7fd71e8c89ef28
[INFO] running `Command { std: "docker" "start" "-a" "d734e5210951b72c27d3f9be5389a0acd07a48970b74b85c8a7fd71e8c89ef28", kill_on_drop: false }`
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]     Checking matches v0.1.10
[INFO] [stderr]     Checking unicode-bidi v0.3.15
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking unicode-normalization v0.1.23
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking backtrace v0.3.71
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking nested_qs v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/deserializer.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:4:1
[INFO] [stdout]    |
[INFO] [stdout] 4  | extern crate serde;
[INFO] [stdout]    | ------------------- the item `serde` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/deserializer.rs:50:27
[INFO] [stdout]    |
[INFO] [stdout] 50 |                 let seq = try!(visitor.visit_seq(&mut deserializer));
[INFO] [stdout]    |                           ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/deserializer.rs:64:27
[INFO] [stdout]    |
[INFO] [stdout] 64 |                 let map = try!(visitor.visit_map(&mut deserializer));
[INFO] [stdout]    |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/deserializer.rs:290:23
[INFO] [stdout]     |
[INFO] [stdout] 290 |             let ret = try!(visitor.visit_seq(&mut self));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/lib.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | /     error_chain! {
[INFO] [stdout] 16 | |         errors { 
[INFO] [stdout] 17 | |             Parse {
[INFO] [stdout] 18 | |                 description("Couldn't parse input")
[INFO] [stdout] ...  |
[INFO] [stdout] 26 | |         }
[INFO] [stdout] 27 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/lib.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | /     error_chain! {
[INFO] [stdout] 16 | |         errors { 
[INFO] [stdout] 17 | |             Parse {
[INFO] [stdout] 18 | |                 description("Couldn't parse input")
[INFO] [stdout] ...  |
[INFO] [stdout] 26 | |         }
[INFO] [stdout] 27 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/deserializer.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:4:1
[INFO] [stdout]    |
[INFO] [stdout] 4  | extern crate serde;
[INFO] [stdout]    | ------------------- the item `serde` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/deserializer.rs:50:27
[INFO] [stdout]    |
[INFO] [stdout] 50 |                 let seq = try!(visitor.visit_seq(&mut deserializer));
[INFO] [stdout]    |                           ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/deserializer.rs:64:27
[INFO] [stdout]    |
[INFO] [stdout] 64 |                 let map = try!(visitor.visit_map(&mut deserializer));
[INFO] [stdout]    |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/deserializer.rs:290:23
[INFO] [stdout]     |
[INFO] [stdout] 290 |             let ret = try!(visitor.visit_seq(&mut self));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/lib.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | /     error_chain! {
[INFO] [stdout] 16 | |         errors { 
[INFO] [stdout] 17 | |             Parse {
[INFO] [stdout] 18 | |                 description("Couldn't parse input")
[INFO] [stdout] ...  |
[INFO] [stdout] 26 | |         }
[INFO] [stdout] 27 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/lib.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | /     error_chain! {
[INFO] [stdout] 16 | |         errors { 
[INFO] [stdout] 17 | |             Parse {
[INFO] [stdout] 18 | |                 description("Couldn't parse input")
[INFO] [stdout] ...  |
[INFO] [stdout] 26 | |         }
[INFO] [stdout] 27 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.87s
[INFO] running `Command { std: "docker" "inspect" "d734e5210951b72c27d3f9be5389a0acd07a48970b74b85c8a7fd71e8c89ef28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d734e5210951b72c27d3f9be5389a0acd07a48970b74b85c8a7fd71e8c89ef28", kill_on_drop: false }`
[INFO] [stdout] d734e5210951b72c27d3f9be5389a0acd07a48970b74b85c8a7fd71e8c89ef28