[INFO] cloning repository https://github.com/mwc10/dt-backup
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mwc10/dt-backup" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmwc10%2Fdt-backup", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmwc10%2Fdt-backup'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 26d0a57710ae2f9c4e90bdceadca40472e02076e
[INFO] checking mwc10/dt-backup against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmwc10%2Fdt-backup" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mwc10/dt-backup on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mwc10/dt-backup
[INFO] finished tweaking git repo https://github.com/mwc10/dt-backup
[INFO] tweaked toml for git repo https://github.com/mwc10/dt-backup written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/mwc10/dt-backup already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded atom_syndication v0.9.1
[INFO] [stderr]   Downloaded openssl-sys v0.9.62
[INFO] [stderr]   Downloaded wildmatch v1.1.0
[INFO] [stderr]   Downloaded diligent-date-parser v0.1.2
[INFO] [stderr]   Downloaded quick-xml v0.20.0
[INFO] [stderr]   Downloaded redox_syscall v0.2.7
[INFO] [stderr]   Downloaded derive_builder_core v0.9.0
[INFO] [stderr]   Downloaded attohttpc v0.17.0
[INFO] [stderr]   Downloaded derive_builder v0.9.0
[INFO] [stderr]   Downloaded rss v1.10.0
[INFO] [stderr]   Downloaded syn v1.0.71
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e1ad4ce1ceacb4ebfe9903be3cd15d8af08dba677de575b68f2a0a9df887ae52
[INFO] running `Command { std: "docker" "start" "-a" "e1ad4ce1ceacb4ebfe9903be3cd15d8af08dba677de575b68f2a0a9df887ae52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1ad4ce1ceacb4ebfe9903be3cd15d8af08dba677de575b68f2a0a9df887ae52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1ad4ce1ceacb4ebfe9903be3cd15d8af08dba677de575b68f2a0a9df887ae52", kill_on_drop: false }`
[INFO] [stdout] e1ad4ce1ceacb4ebfe9903be3cd15d8af08dba677de575b68f2a0a9df887ae52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 45ab4582fcdcccabc60d3895ad20a1effbd608a39f8bc3e07e6b8b0ff1d33f8e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "45ab4582fcdcccabc60d3895ad20a1effbd608a39f8bc3e07e6b8b0ff1d33f8e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling syn v1.0.71
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling siphasher v0.3.5
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]    Compiling encoding_rs v0.8.28
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking thin-slice v0.1.1
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking ego-tree v0.6.2
[INFO] [stderr]     Checking wildmatch v1.1.0
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]     Checking futf v0.1.4
[INFO] [stderr]     Checking dtoa-short v0.3.3
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]     Checking servo_arc v0.1.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking tendril v0.4.2
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]    Compiling openssl-sys v0.9.62
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking unicode-normalization v0.1.17
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling openssl v0.10.34
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking quick-xml v0.20.0
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]     Checking diligent-date-parser v0.1.2
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.1
[INFO] [stderr]    Compiling selectors v0.22.0
[INFO] [stderr]    Compiling markup5ever v0.10.1
[INFO] [stderr]     Checking string_cache v0.8.1
[INFO] [stderr]     Checking attohttpc v0.17.0
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling phf_macros v0.8.0
[INFO] [stderr]    Compiling cssparser v0.27.2
[INFO] [stderr]    Compiling html5ever v0.25.1
[INFO] [stderr]    Compiling cssparser-macros v0.6.0
[INFO] [stderr]    Compiling derive_more v0.99.13
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling derive_builder_core v0.9.0
[INFO] [stderr]     Checking scraper v0.12.0
[INFO] [stderr]     Checking atom_syndication v0.9.1
[INFO] [stderr]     Checking rss v1.10.0
[INFO] [stderr]     Checking dt-backup v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: cannot add `i32` to `&()`
[INFO] [stdout]   --> src/scrape.rs:90:65
[INFO] [stdout]    |
[INFO] [stdout] 90 |     let year = &filename[0..2].parse().context("parsing year")? + 2000i32;
[INFO] [stdout]    |                                                                 ^ no implementation for `&() + i32`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Add<i32>` is not implemented for `&()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `(): FromStr` is not satisfied
[INFO] [stdout]     --> src/scrape.rs:90:32
[INFO] [stdout]      |
[INFO] [stdout] 90   |     let year = &filename[0..2].parse().context("parsing year")? + 2000i32;
[INFO] [stdout]      |                                ^^^^^ the trait `FromStr` is not implemented for `()`
[INFO] [stdout]      |
[INFO] [stdout] note: required by a bound in `core::str::<impl str>::parse`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dt-backup` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0277]: cannot add `i32` to `&()`
[INFO] [stdout]   --> src/scrape.rs:90:65
[INFO] [stdout]    |
[INFO] [stdout] 90 |     let year = &filename[0..2].parse().context("parsing year")? + 2000i32;
[INFO] [stdout]    |                                                                 ^ no implementation for `&() + i32`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Add<i32>` is not implemented for `&()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `(): FromStr` is not satisfied
[INFO] [stdout]     --> src/scrape.rs:90:32
[INFO] [stdout]      |
[INFO] [stdout] 90   |     let year = &filename[0..2].parse().context("parsing year")? + 2000i32;
[INFO] [stdout]      |                                ^^^^^ the trait `FromStr` is not implemented for `()`
[INFO] [stdout]      |
[INFO] [stdout] note: required by a bound in `core::str::<impl str>::parse`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "45ab4582fcdcccabc60d3895ad20a1effbd608a39f8bc3e07e6b8b0ff1d33f8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45ab4582fcdcccabc60d3895ad20a1effbd608a39f8bc3e07e6b8b0ff1d33f8e", kill_on_drop: false }`
[INFO] [stdout] 45ab4582fcdcccabc60d3895ad20a1effbd608a39f8bc3e07e6b8b0ff1d33f8e