[INFO] cloning repository https://github.com/SuKiN-a/liftcalc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SuKiN-a/liftcalc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSuKiN-a%2Fliftcalc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSuKiN-a%2Fliftcalc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 810be69433d9952b099ab14ba0fd91c6aeb06cd1
[INFO] checking SuKiN-a/liftcalc against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSuKiN-a%2Fliftcalc" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SuKiN-a/liftcalc 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 git repo https://github.com/SuKiN-a/liftcalc
[INFO] finished tweaking git repo https://github.com/SuKiN-a/liftcalc
[INFO] tweaked toml for git repo https://github.com/SuKiN-a/liftcalc written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/SuKiN-a/liftcalc 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 cranelift-codegen-shared v0.82.1
[INFO] [stderr]   Downloaded cranelift-native v0.82.1
[INFO] [stderr]   Downloaded const-random-macro v0.1.13
[INFO] [stderr]   Downloaded const-random v0.1.13
[INFO] [stderr]   Downloaded cranelift-module v0.82.1
[INFO] [stderr]   Downloaded cranelift-frontend v0.82.1
[INFO] [stderr]   Downloaded regalloc v0.0.34
[INFO] [stderr]   Downloaded cranelift-jit v0.82.1
[INFO] [stderr]   Downloaded cranelift-bforest v0.82.1
[INFO] [stderr]   Downloaded cranelift-codegen v0.82.1
[INFO] [stderr]   Downloaded cranelift-entity v0.82.1
[INFO] [stderr]   Downloaded cranelift v0.82.1
[INFO] [stderr]   Downloaded cranelift-codegen-meta v0.82.1
[INFO] [stderr]   Downloaded target-lexicon v0.12.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 66ca4ae524764b7fbfdadd60508aa779790fbaa4216a311c6bd4ff9acdd6c153
[INFO] running `Command { std: "docker" "start" "-a" "66ca4ae524764b7fbfdadd60508aa779790fbaa4216a311c6bd4ff9acdd6c153", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66ca4ae524764b7fbfdadd60508aa779790fbaa4216a311c6bd4ff9acdd6c153", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66ca4ae524764b7fbfdadd60508aa779790fbaa4216a311c6bd4ff9acdd6c153", kill_on_drop: false }`
[INFO] [stdout] 66ca4ae524764b7fbfdadd60508aa779790fbaa4216a311c6bd4ff9acdd6c153
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 17720d907157b09e9c7d4c38f203cf4fba082360925478c34cb426b027ac11e7
[INFO] running `Command { std: "docker" "start" "-a" "17720d907157b09e9c7d4c38f203cf4fba082360925478c34cb426b027ac11e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.82.1
[INFO] [stderr]    Compiling target-lexicon v0.12.3
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking cranelift-entity v0.82.1
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling anyhow v1.0.56
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.82.1
[INFO] [stderr]     Checking regalloc v0.0.34
[INFO] [stderr]     Checking cranelift-bforest v0.82.1
[INFO] [stderr]     Checking region v2.2.0
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]    Compiling const-random-macro v0.1.13
[INFO] [stderr]     Checking const-random v0.1.13
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking chumsky v0.8.0
[INFO] [stderr]    Compiling cranelift-codegen v0.82.1
[INFO] [stderr]     Checking cranelift-module v0.82.1
[INFO] [stderr]     Checking cranelift-frontend v0.82.1
[INFO] [stderr]     Checking cranelift-native v0.82.1
[INFO] [stderr]     Checking cranelift-jit v0.82.1
[INFO] [stderr]     Checking cranelift v0.82.1
[INFO] [stderr]     Checking liftcalc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `settings` is imported redundantly
[INFO] [stdout]  --> src/main.rs:7:20
[INFO] [stdout]   |
[INFO] [stdout] 7 |         settings::{self, Configurable},
[INFO] [stdout]   |                    ^^^^
[INFO] [stdout] 8 |     },
[INFO] [stdout] 9 |     prelude::*,
[INFO] [stdout]   |     ---------- the item `settings` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Configurable` is imported redundantly
[INFO] [stdout]  --> src/main.rs:7:26
[INFO] [stdout]   |
[INFO] [stdout] 7 |         settings::{self, Configurable},
[INFO] [stdout]   |                          ^^^^^^^^^^^^
[INFO] [stdout] 8 |     },
[INFO] [stdout] 9 |     prelude::*,
[INFO] [stdout]   |     ---------- the item `Configurable` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `settings` is imported redundantly
[INFO] [stdout]  --> src/main.rs:7:20
[INFO] [stdout]   |
[INFO] [stdout] 7 |         settings::{self, Configurable},
[INFO] [stdout]   |                    ^^^^
[INFO] [stdout] 8 |     },
[INFO] [stdout] 9 |     prelude::*,
[INFO] [stdout]   |     ---------- the item `settings` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Configurable` is imported redundantly
[INFO] [stdout]  --> src/main.rs:7:26
[INFO] [stdout]   |
[INFO] [stdout] 7 |         settings::{self, Configurable},
[INFO] [stdout]   |                          ^^^^^^^^^^^^
[INFO] [stdout] 8 |     },
[INFO] [stdout] 9 |     prelude::*,
[INFO] [stdout]   |     ---------- the item `Configurable` is already imported here
[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 11.47s
[INFO] running `Command { std: "docker" "inspect" "17720d907157b09e9c7d4c38f203cf4fba082360925478c34cb426b027ac11e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17720d907157b09e9c7d4c38f203cf4fba082360925478c34cb426b027ac11e7", kill_on_drop: false }`
[INFO] [stdout] 17720d907157b09e9c7d4c38f203cf4fba082360925478c34cb426b027ac11e7
[INFO] checking SuKiN-a/liftcalc against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSuKiN-a%2Fliftcalc" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SuKiN-a/liftcalc on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SuKiN-a/liftcalc
[INFO] finished tweaking git repo https://github.com/SuKiN-a/liftcalc
[INFO] tweaked toml for git repo https://github.com/SuKiN-a/liftcalc written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/SuKiN-a/liftcalc 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 59c8ade182bad5fd27c9b18abb398f57e8680e7608ccdae25e138a3de25933d8
[INFO] running `Command { std: "docker" "start" "-a" "59c8ade182bad5fd27c9b18abb398f57e8680e7608ccdae25e138a3de25933d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "59c8ade182bad5fd27c9b18abb398f57e8680e7608ccdae25e138a3de25933d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59c8ade182bad5fd27c9b18abb398f57e8680e7608ccdae25e138a3de25933d8", kill_on_drop: false }`
[INFO] [stdout] 59c8ade182bad5fd27c9b18abb398f57e8680e7608ccdae25e138a3de25933d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7bb4a37ae09db9142d87c332942842eb24dad4378b5b7894a4aa4c2148da30c9
[INFO] running `Command { std: "docker" "start" "-a" "7bb4a37ae09db9142d87c332942842eb24dad4378b5b7894a4aa4c2148da30c9", kill_on_drop: false }`
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.82.1
[INFO] [stderr]    Compiling target-lexicon v0.12.3
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]     Checking cranelift-entity v0.82.1
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling anyhow v1.0.56
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.82.1
[INFO] [stderr]     Checking regalloc v0.0.34
[INFO] [stderr]     Checking cranelift-bforest v0.82.1
[INFO] [stderr]     Checking region v2.2.0
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]    Compiling cranelift-codegen v0.82.1
[INFO] [stderr]    Compiling const-random-macro v0.1.13
[INFO] [stderr]     Checking const-random v0.1.13
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking chumsky v0.8.0
[INFO] [stderr]     Checking cranelift-module v0.82.1
[INFO] [stderr]     Checking cranelift-native v0.82.1
[INFO] [stderr]     Checking cranelift-frontend v0.82.1
[INFO] [stderr]     Checking cranelift-jit v0.82.1
[INFO] [stderr]     Checking cranelift v0.82.1
[INFO] [stderr]     Checking liftcalc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `settings` is imported redundantly
[INFO] [stdout]  --> src/main.rs:7:20
[INFO] [stdout]   |
[INFO] [stdout] 7 |         settings::{self, Configurable},
[INFO] [stdout]   |                    ^^^^
[INFO] [stdout] 8 |     },
[INFO] [stdout] 9 |     prelude::*,
[INFO] [stdout]   |     ---------- the item `settings` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Configurable` is imported redundantly
[INFO] [stdout]  --> src/main.rs:7:26
[INFO] [stdout]   |
[INFO] [stdout] 7 |         settings::{self, Configurable},
[INFO] [stdout]   |                          ^^^^^^^^^^^^
[INFO] [stdout] 8 |     },
[INFO] [stdout] 9 |     prelude::*,
[INFO] [stdout]   |     ---------- the item `Configurable` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `settings` is imported redundantly
[INFO] [stdout]  --> src/main.rs:7:20
[INFO] [stdout]   |
[INFO] [stdout] 7 |         settings::{self, Configurable},
[INFO] [stdout]   |                    ^^^^
[INFO] [stdout] 8 |     },
[INFO] [stdout] 9 |     prelude::*,
[INFO] [stdout]   |     ---------- the item `settings` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Configurable` is imported redundantly
[INFO] [stdout]  --> src/main.rs:7:26
[INFO] [stdout]   |
[INFO] [stdout] 7 |         settings::{self, Configurable},
[INFO] [stdout]   |                          ^^^^^^^^^^^^
[INFO] [stdout] 8 |     },
[INFO] [stdout] 9 |     prelude::*,
[INFO] [stdout]   |     ---------- the item `Configurable` is already imported here
[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 13.34s
[INFO] running `Command { std: "docker" "inspect" "7bb4a37ae09db9142d87c332942842eb24dad4378b5b7894a4aa4c2148da30c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bb4a37ae09db9142d87c332942842eb24dad4378b5b7894a4aa4c2148da30c9", kill_on_drop: false }`
[INFO] [stdout] 7bb4a37ae09db9142d87c332942842eb24dad4378b5b7894a4aa4c2148da30c9