[INFO] cloning repository https://github.com/freedit-org/linger
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/freedit-org/linger" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffreedit-org%2Flinger", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffreedit-org%2Flinger'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7f675f5af535906743c801a1fa41916aa6a2542d
[INFO] checking freedit-org/linger against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffreedit-org%2Flinger" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/freedit-org/linger 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/freedit-org/linger
[INFO] finished tweaking git repo https://github.com/freedit-org/linger
[INFO] tweaked toml for git repo https://github.com/freedit-org/linger written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/freedit-org/linger 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]  Downloading crates ...
[INFO] [stderr]   Downloaded rustls v0.21.9
[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] 58fb37b53ca3288b34f69dad75881d27dead1be1f20b3a70a453fd19895e9aa2
[INFO] running `Command { std: "docker" "start" "-a" "58fb37b53ca3288b34f69dad75881d27dead1be1f20b3a70a453fd19895e9aa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "58fb37b53ca3288b34f69dad75881d27dead1be1f20b3a70a453fd19895e9aa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58fb37b53ca3288b34f69dad75881d27dead1be1f20b3a70a453fd19895e9aa2", kill_on_drop: false }`
[INFO] [stdout] 58fb37b53ca3288b34f69dad75881d27dead1be1f20b3a70a453fd19895e9aa2
[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] 0b3ac752a9499d8281d512c6990f6489ba7c8f03ccc042107cdba6c54dbbb1dd
[INFO] running `Command { std: "docker" "start" "-a" "0b3ac752a9499d8281d512c6990f6489ba7c8f03ccc042107cdba6c54dbbb1dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]    Compiling rustls v0.21.9
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking option-ext v0.2.0
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]    Compiling virtue v0.0.13
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking base64 v0.21.5
[INFO] [stderr]     Checking colored v2.1.0
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]    Compiling bincode_derive v2.0.0-rc.3
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking dirs-sys v0.4.1
[INFO] [stderr]     Checking dirs v5.0.1
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking sled v0.34.7
[INFO] [stderr]     Checking bincode v2.0.0-rc.3
[INFO] [stderr]    Compiling ring v0.17.6
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]     Checking sct v0.7.1
[INFO] [stderr]     Checking rustls-webpki v0.101.7
[INFO] [stderr]     Checking ureq v2.9.1
[INFO] [stderr]     Checking linger v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.64s
[INFO] running `Command { std: "docker" "inspect" "0b3ac752a9499d8281d512c6990f6489ba7c8f03ccc042107cdba6c54dbbb1dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b3ac752a9499d8281d512c6990f6489ba7c8f03ccc042107cdba6c54dbbb1dd", kill_on_drop: false }`
[INFO] [stdout] 0b3ac752a9499d8281d512c6990f6489ba7c8f03ccc042107cdba6c54dbbb1dd
[INFO] checking freedit-org/linger against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffreedit-org%2Flinger" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/freedit-org/linger 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/freedit-org/linger
[INFO] finished tweaking git repo https://github.com/freedit-org/linger
[INFO] tweaked toml for git repo https://github.com/freedit-org/linger written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/freedit-org/linger 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-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c009999b1ed8783f2e9969de37f8c1f98d465357dbeeea977e5e3105ad9a0377
[INFO] running `Command { std: "docker" "start" "-a" "c009999b1ed8783f2e9969de37f8c1f98d465357dbeeea977e5e3105ad9a0377", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c009999b1ed8783f2e9969de37f8c1f98d465357dbeeea977e5e3105ad9a0377", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c009999b1ed8783f2e9969de37f8c1f98d465357dbeeea977e5e3105ad9a0377", kill_on_drop: false }`
[INFO] [stdout] c009999b1ed8783f2e9969de37f8c1f98d465357dbeeea977e5e3105ad9a0377
[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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a993834974cc339e47275104f51b35258a1039070ae3eff42434d3386d52c334
[INFO] running `Command { std: "docker" "start" "-a" "a993834974cc339e47275104f51b35258a1039070ae3eff42434d3386d52c334", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]    Compiling rustls v0.21.9
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]    Compiling virtue v0.0.13
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking option-ext v0.2.0
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking base64 v0.21.5
[INFO] [stderr]     Checking colored v2.1.0
[INFO] [stderr]    Compiling bincode_derive v2.0.0-rc.3
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking dirs-sys v0.4.1
[INFO] [stderr]     Checking dirs v5.0.1
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking sled v0.34.7
[INFO] [stderr]     Checking bincode v2.0.0-rc.3
[INFO] [stderr]    Compiling ring v0.17.6
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]     Checking sct v0.7.1
[INFO] [stderr]     Checking rustls-webpki v0.101.7
[INFO] [stderr]     Checking ureq v2.9.1
[INFO] [stderr]     Checking linger v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.49s
[INFO] running `Command { std: "docker" "inspect" "a993834974cc339e47275104f51b35258a1039070ae3eff42434d3386d52c334", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a993834974cc339e47275104f51b35258a1039070ae3eff42434d3386d52c334", kill_on_drop: false }`
[INFO] [stdout] a993834974cc339e47275104f51b35258a1039070ae3eff42434d3386d52c334