[INFO] fetching crate desk-locker 1.0.1...
[INFO] testing desk-locker-1.0.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate desk-locker 1.0.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate desk-locker 1.0.1
[INFO] finished tweaking crates.io crate desk-locker 1.0.1
[INFO] tweaked toml for crates.io crate desk-locker 1.0.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate desk-locker 1.0.1 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate desk-locker 1.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded log v0.4.13
[INFO] [stderr]   Downloaded thiserror-impl v1.0.23
[INFO] [stderr]   Downloaded libdbus-sys v0.2.1
[INFO] [stderr]   Downloaded proc-macro2 v1.0.24
[INFO] [stderr]   Downloaded anyhow v1.0.38
[INFO] [stderr]   Downloaded cc v1.0.66
[INFO] [stderr]   Downloaded heck v0.3.2
[INFO] [stderr]   Downloaded unicode-segmentation v1.7.1
[INFO] [stderr]   Downloaded dbus v0.9.1
[INFO] [stderr]   Downloaded aho-corasick v0.7.15
[INFO] [stderr]   Downloaded structopt v0.3.21
[INFO] [stderr]   Downloaded env_logger v0.8.2
[INFO] [stderr]   Downloaded desk-logind v1.1.1
[INFO] [stderr]   Downloaded syn v1.0.58
[INFO] [stderr]   Downloaded nix v0.19.1
[INFO] [stderr]   Downloaded structopt-derive v0.4.14
[INFO] [stderr]   Downloaded regex v1.4.3
[INFO] [stderr]   Downloaded thiserror v1.0.23
[INFO] [stderr]   Downloaded memchr v2.3.4
[INFO] [stderr]   Downloaded regex-syntax v0.6.22
[INFO] [stderr]   Downloaded thread_local v1.1.0
[INFO] [stderr]   Downloaded termcolor v1.1.2
[INFO] [stderr]   Downloaded hermit-abi v0.1.18
[INFO] [stderr]   Downloaded quote v1.0.8
[INFO] [stderr]   Downloaded libc v0.2.82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf6861a884045ba5c52b2dbede0d8d4d116ae8074c17d04f780b3ae6492c3200
[INFO] running `Command { std: "docker" "start" "-a" "cf6861a884045ba5c52b2dbede0d8d4d116ae8074c17d04f780b3ae6492c3200", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf6861a884045ba5c52b2dbede0d8d4d116ae8074c17d04f780b3ae6492c3200", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf6861a884045ba5c52b2dbede0d8d4d116ae8074c17d04f780b3ae6492c3200", kill_on_drop: false }`
[INFO] [stdout] cf6861a884045ba5c52b2dbede0d8d4d116ae8074c17d04f780b3ae6492c3200
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ab90bf35a729afd7b071d210eb4d4e540393019c720e0b20853146c52616c62
[INFO] running `Command { std: "docker" "start" "-a" "1ab90bf35a729afd7b071d210eb4d4e540393019c720e0b20853146c52616c62", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.13
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]    Compiling regex-syntax v0.6.22
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling thread_local v1.1.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling libdbus-sys v0.2.1
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling dbus v0.9.1
[INFO] [stderr]    Compiling nix v0.19.1
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling xcb v0.9.0
[INFO] [stderr]    Compiling env_logger v0.8.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling thiserror v1.0.23
[INFO] [stderr]    Compiling structopt v0.3.21
[INFO] [stderr]    Compiling desk-logind v1.1.1
[INFO] [stdout] error[E0407]: method `backtrace` is not a member of trait `std::error::Error`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/desk-logind-1.1.1/src/error.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[derive(Error, Debug)]
[INFO] [stdout]   |          ^^^^^ not a member of trait `std::error::Error`
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the derive macro `Error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/desk-logind-1.1.1/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(backtrace)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `backtrace` found for reference `&(dyn std::error::Error + 'static)` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/desk-logind-1.1.1/src/error.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |         source: DBusError,
[INFO] [stdout]    |         ^^^^^^ method not found in `&(dyn std::error::Error + 'static)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `backtrace` found for reference `&(dyn std::error::Error + 'static)` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/desk-logind-1.1.1/src/error.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         source: DBusError,
[INFO] [stdout]    |         ^^^^^^ method not found in `&(dyn std::error::Error + 'static)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `backtrace` found for reference `&(dyn std::error::Error + 'static)` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/desk-logind-1.1.1/src/error.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         source: nix::Error,
[INFO] [stdout]    |         ^^^^^^ method not found in `&(dyn std::error::Error + 'static)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0407, E0554, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0407`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `desk-logind` (lib) due to 5 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "1ab90bf35a729afd7b071d210eb4d4e540393019c720e0b20853146c52616c62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ab90bf35a729afd7b071d210eb4d4e540393019c720e0b20853146c52616c62", kill_on_drop: false }`
[INFO] [stdout] 1ab90bf35a729afd7b071d210eb4d4e540393019c720e0b20853146c52616c62