[INFO] fetching crate igd_async_std 0.12.4...
[INFO] checking igd_async_std-0.12.4 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate igd_async_std 0.12.4 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate igd_async_std 0.12.4 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 igd_async_std 0.12.4
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate igd_async_std 0.12.4
[INFO] tweaked toml for crates.io crate igd_async_std 0.12.4 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate igd_async_std 0.12.4 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded xmltree v0.10.3
[INFO] [stderr]   Downloaded cpufeatures v0.2.2
[INFO] [stderr]   Downloaded parking v2.0.0
[INFO] [stderr]   Downloaded futures-lite v1.12.0
[INFO] [stderr]   Downloaded generic-array v0.14.5
[INFO] [stderr]   Downloaded gloo-timers v0.2.4
[INFO] [stderr]   Downloaded ctor v0.1.22
[INFO] [stderr]   Downloaded value-bag v1.0.0-alpha.9
[INFO] [stderr]   Downloaded cache-padded v1.2.0
[INFO] [stderr]   Downloaded wildmatch v2.1.1
[INFO] [stderr]   Downloaded time-macros v0.2.4
[INFO] [stderr]   Downloaded simplelog v0.12.0
[INFO] [stderr]   Downloaded attohttpc v0.19.1
[INFO] [stderr]   Downloaded time v0.3.11
[INFO] [stderr]   Downloaded spinning_top v0.2.4
[INFO] [stderr]   Downloaded wepoll-ffi v0.1.2
[INFO] [stderr]   Downloaded tracing-attributes v0.1.22
[INFO] [stderr]   Downloaded async-executor v1.4.1
[INFO] [stderr]   Downloaded async-channel v1.6.1
[INFO] [stderr]   Downloaded atomic-waker v1.0.0
[INFO] [stderr]   Downloaded blocking v1.2.0
[INFO] [stderr]   Downloaded async-global-executor v2.2.0
[INFO] [stderr]   Downloaded polling v2.2.0
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.32
[INFO] [stderr]   Downloaded async-trait v0.1.56
[INFO] [stderr]   Downloaded bytes v1.2.0
[INFO] [stderr]   Downloaded async-task v4.3.0
[INFO] [stderr]   Downloaded concurrent-queue v1.2.4
[INFO] [stderr]   Downloaded async-io v1.7.0
[INFO] [stderr]   Downloaded curl-sys v0.4.56+curl-7.83.1
[INFO] [stderr]   Downloaded async-lock v2.5.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.42
[INFO] [stderr]   Downloaded libnghttp2-sys v0.1.7+1.45.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 8232e6af0feaf36e01b0d333b9c90e7de3dad1078e2abdd5491dcb4995b278d5
[INFO] running `Command { std: "docker" "start" "-a" "8232e6af0feaf36e01b0d333b9c90e7de3dad1078e2abdd5491dcb4995b278d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8232e6af0feaf36e01b0d333b9c90e7de3dad1078e2abdd5491dcb4995b278d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8232e6af0feaf36e01b0d333b9c90e7de3dad1078e2abdd5491dcb4995b278d5", kill_on_drop: false }`
[INFO] [stdout] 8232e6af0feaf36e01b0d333b9c90e7de3dad1078e2abdd5491dcb4995b278d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 3846b2b29ead859372c5482e8b9d8ba1758863353735fd8b11766ece16926505
[INFO] running `Command { std: "docker" "start" "-a" "3846b2b29ead859372c5482e8b9d8ba1758863353735fd8b11766ece16926505", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking unicode-bidi v0.3.8
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking bytes v1.2.0
[INFO] [stderr]     Checking num_threads v0.1.6
[INFO] [stderr]     Checking xml-rs v0.8.4
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking wildmatch v2.1.1
[INFO] [stderr]    Compiling time-macros v0.2.4
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking http v0.2.8
[INFO] [stderr]     Checking xmltree v0.10.3
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking unicode-normalization v0.1.21
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking time v0.3.11
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking simplelog v0.12.0
[INFO] [stderr]     Checking attohttpc v0.19.1
[INFO] [stderr]     Checking igd_async_std v0.12.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `xmltree` is imported redundantly
[INFO] [stdout]  --> src/common/parsing.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | use xmltree::{self, Element};
[INFO] [stdout]   |               ^^^^ the item `xmltree` 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 `rand` is imported redundantly
[INFO] [stdout]  --> src/common/mod.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rand::{self, Rng};
[INFO] [stdout]   |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `xmltree` is imported redundantly
[INFO] [stdout]  --> src/common/parsing.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | use xmltree::{self, Element};
[INFO] [stdout]   |               ^^^^ the item `xmltree` 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 `rand` is imported redundantly
[INFO] [stdout]  --> src/common/mod.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rand::{self, Rng};
[INFO] [stdout]   |            ^^^^ the item `rand` 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 6.41s
[INFO] running `Command { std: "docker" "inspect" "3846b2b29ead859372c5482e8b9d8ba1758863353735fd8b11766ece16926505", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3846b2b29ead859372c5482e8b9d8ba1758863353735fd8b11766ece16926505", kill_on_drop: false }`
[INFO] [stdout] 3846b2b29ead859372c5482e8b9d8ba1758863353735fd8b11766ece16926505
[INFO] checking igd_async_std-0.12.4 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate igd_async_std 0.12.4 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate igd_async_std 0.12.4 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate igd_async_std 0.12.4
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate igd_async_std 0.12.4
[INFO] tweaked toml for crates.io crate igd_async_std 0.12.4 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate igd_async_std 0.12.4 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f1336cccc5477af8adcac2f53c0b09cb248e0f174b5f1c03d09afd19da3a360
[INFO] running `Command { std: "docker" "start" "-a" "1f1336cccc5477af8adcac2f53c0b09cb248e0f174b5f1c03d09afd19da3a360", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f1336cccc5477af8adcac2f53c0b09cb248e0f174b5f1c03d09afd19da3a360", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f1336cccc5477af8adcac2f53c0b09cb248e0f174b5f1c03d09afd19da3a360", kill_on_drop: false }`
[INFO] [stdout] 1f1336cccc5477af8adcac2f53c0b09cb248e0f174b5f1c03d09afd19da3a360
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf42792c0528daba579ec249b968ff735b36cbb92e05748fa36a5be4e2b86c8b
[INFO] running `Command { std: "docker" "start" "-a" "cf42792c0528daba579ec249b968ff735b36cbb92e05748fa36a5be4e2b86c8b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking unicode-bidi v0.3.8
[INFO] [stderr]     Checking bytes v1.2.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking xml-rs v0.8.4
[INFO] [stderr]     Checking wildmatch v2.1.1
[INFO] [stderr]     Checking num_threads v0.1.6
[INFO] [stderr]    Compiling time-macros v0.2.4
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking xmltree v0.10.3
[INFO] [stderr]     Checking http v0.2.8
[INFO] [stderr]     Checking unicode-normalization v0.1.21
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking time v0.3.11
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking simplelog v0.12.0
[INFO] [stderr]     Checking attohttpc v0.19.1
[INFO] [stderr]     Checking igd_async_std v0.12.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `xmltree` is imported redundantly
[INFO] [stdout]  --> src/common/parsing.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | use xmltree::{self, Element};
[INFO] [stdout]   |               ^^^^ the item `xmltree` 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 `rand` is imported redundantly
[INFO] [stdout]  --> src/common/mod.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rand::{self, Rng};
[INFO] [stdout]   |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `xmltree` is imported redundantly
[INFO] [stdout]  --> src/common/parsing.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | use xmltree::{self, Element};
[INFO] [stdout]   |               ^^^^ the item `xmltree` 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 `rand` is imported redundantly
[INFO] [stdout]  --> src/common/mod.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rand::{self, Rng};
[INFO] [stdout]   |            ^^^^ the item `rand` 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 4.70s
[INFO] running `Command { std: "docker" "inspect" "cf42792c0528daba579ec249b968ff735b36cbb92e05748fa36a5be4e2b86c8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf42792c0528daba579ec249b968ff735b36cbb92e05748fa36a5be4e2b86c8b", kill_on_drop: false }`
[INFO] [stdout] cf42792c0528daba579ec249b968ff735b36cbb92e05748fa36a5be4e2b86c8b