[INFO] fetching crate youtrack-rs 0.2.0...
[INFO] checking youtrack-rs-0.2.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate youtrack-rs 0.2.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate youtrack-rs 0.2.0 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 youtrack-rs 0.2.0
[INFO] finished tweaking crates.io crate youtrack-rs 0.2.0
[INFO] tweaked toml for crates.io crate youtrack-rs 0.2.0 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]     Updating crates.io index
[INFO] [stderr]      Locking 133 packages
[INFO] [stderr]       Adding base64 v0.10.1 (latest: v0.22.0)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding bytes v0.5.6 (latest: v1.6.0)
[INFO] [stderr]       Adding cfg-if v0.1.10 (latest: v1.0.0)
[INFO] [stderr]       Adding core-foundation v0.6.4 (latest: v0.9.4)
[INFO] [stderr]       Adding core-foundation-sys v0.6.2 (latest: v0.8.6)
[INFO] [stderr]       Adding ct-logs v0.6.0 (latest: v0.9.0)
[INFO] [stderr]       Adding foreign-types v0.3.2 (latest: v0.5.0)
[INFO] [stderr]       Adding foreign-types-shared v0.1.1 (latest: v0.3.1)
[INFO] [stderr]       Adding h2 v0.2.7 (latest: v0.4.4)
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.3)
[INFO] [stderr]       Adding http v0.2.12 (latest: v1.1.0)
[INFO] [stderr]       Adding http-body v0.3.1 (latest: v1.0.0)
[INFO] [stderr]       Adding httpdate v0.3.2 (latest: v1.0.3)
[INFO] [stderr]       Adding hyper v0.13.10 (latest: v1.2.0)
[INFO] [stderr]       Adding hyper-rustls v0.19.1 (latest: v0.27.0)
[INFO] [stderr]       Adding hyper-tls v0.4.3 (latest: v0.6.0)
[INFO] [stderr]       Adding indexmap v1.9.3 (latest: v2.2.6)
[INFO] [stderr]       Adding itoa v0.4.8 (latest: v1.0.11)
[INFO] [stderr]       Adding linux-raw-sys v0.4.13 (latest: v0.6.4)
[INFO] [stderr]       Adding mio v0.6.23 (latest: v0.8.11)
[INFO] [stderr]       Adding miow v0.2.2 (latest: v0.6.0)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding pin-project-lite v0.1.12 (latest: v0.2.14)
[INFO] [stderr]       Adding ring v0.16.20 (latest: v0.17.8)
[INFO] [stderr]       Adding rustls v0.16.0 (latest: v0.23.4)
[INFO] [stderr]       Adding rustls-native-certs v0.1.0 (latest: v0.7.0)
[INFO] [stderr]       Adding sct v0.6.1 (latest: v0.7.1)
[INFO] [stderr]       Adding security-framework v0.3.4 (latest: v2.10.0)
[INFO] [stderr]       Adding security-framework-sys v0.3.3 (latest: v2.10.0)
[INFO] [stderr]       Adding socket2 v0.3.19 (latest: v0.5.6)
[INFO] [stderr]       Adding spin v0.5.2 (latest: v0.9.8)
[INFO] [stderr]       Adding tokio v0.2.25 (latest: v1.37.0)
[INFO] [stderr]       Adding tokio-rustls v0.12.3 (latest: v0.26.0)
[INFO] [stderr]       Adding tokio-util v0.3.1 (latest: v0.7.10)
[INFO] [stderr]       Adding untrusted v0.7.1 (latest: v0.9.0)
[INFO] [stderr]       Adding webpki v0.21.4 (latest: v0.22.4)
[INFO] [stderr]       Adding winapi v0.2.8 (latest: v0.3.9)
[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 tokio-rustls v0.12.3
[INFO] [stderr]   Downloaded security-framework v0.3.4
[INFO] [stderr]   Downloaded rustls-native-certs v0.1.0
[INFO] [stderr]   Downloaded security-framework-sys v0.3.3
[INFO] [stderr]   Downloaded hyper-rustls v0.19.1
[INFO] [stderr]   Downloaded rustls v0.16.0
[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] 95fa3208ce436e50ad40f2912d0f56ee22485c741749d774599a42fa48606431
[INFO] running `Command { std: "docker" "start" "-a" "95fa3208ce436e50ad40f2912d0f56ee22485c741749d774599a42fa48606431", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95fa3208ce436e50ad40f2912d0f56ee22485c741749d774599a42fa48606431", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95fa3208ce436e50ad40f2912d0f56ee22485c741749d774599a42fa48606431", kill_on_drop: false }`
[INFO] [stdout] 95fa3208ce436e50ad40f2912d0f56ee22485c741749d774599a42fa48606431
[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] 2965b73808862285a047103b0356c9867619e1b0dea95a4b20ee1be071293106
[INFO] running `Command { std: "docker" "start" "-a" "2965b73808862285a047103b0356c9867619e1b0dea95a4b20ee1be071293106", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking httpdate v0.3.2
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.39
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking backtrace v0.3.71
[INFO] [stderr]     Checking sct v0.6.1
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking ct-logs v0.6.0
[INFO] [stderr]     Checking rustls v0.16.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking pin-project v1.1.5
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking tokio-rustls v0.12.3
[INFO] [stderr]     Checking rustls-native-certs v0.1.0
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking hyper v0.13.10
[INFO] [stderr]     Checking hyper-rustls v0.19.1
[INFO] [stderr]     Checking youtrack-rs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `hyper` is imported redundantly
[INFO] [stdout]  --> src/client.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 | use hyper::{self, Body, HeaderMap};
[INFO] [stdout]   |             ^^^^ the item `hyper` 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 `serde_json` is imported redundantly
[INFO] [stdout]   --> src/client.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `hyper` is imported redundantly
[INFO] [stdout]  --> src/client.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 | use hyper::{self, Body, HeaderMap};
[INFO] [stdout]   |             ^^^^ the item `hyper` 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 `serde_json` is imported redundantly
[INFO] [stdout]   --> src/client.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.82s
[INFO] running `Command { std: "docker" "inspect" "2965b73808862285a047103b0356c9867619e1b0dea95a4b20ee1be071293106", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2965b73808862285a047103b0356c9867619e1b0dea95a4b20ee1be071293106", kill_on_drop: false }`
[INFO] [stdout] 2965b73808862285a047103b0356c9867619e1b0dea95a4b20ee1be071293106