[INFO] cloning repository https://github.com/saghm/varball
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/saghm/varball" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsaghm%2Fvarball", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsaghm%2Fvarball'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a7a410a848805e85cbcdcd207567d7c289543ae0
[INFO] checking saghm/varball against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsaghm%2Fvarball" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/saghm/varball 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/saghm/varball
[INFO] finished tweaking git repo https://github.com/saghm/varball
[INFO] tweaked toml for git repo https://github.com/saghm/varball written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/saghm/varball 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 num-format v0.4.0
[INFO] [stderr]   Downloaded array-macro v2.1.0
[INFO] [stderr]   Downloaded structopt v0.3.25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 27b1f8e05926411fa2822151fcb336f3e6e19a257966cbe1576013fe5de7b2c4
[INFO] running `Command { std: "docker" "start" "-a" "27b1f8e05926411fa2822151fcb336f3e6e19a257966cbe1576013fe5de7b2c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27b1f8e05926411fa2822151fcb336f3e6e19a257966cbe1576013fe5de7b2c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27b1f8e05926411fa2822151fcb336f3e6e19a257966cbe1576013fe5de7b2c4", kill_on_drop: false }`
[INFO] [stdout] 27b1f8e05926411fa2822151fcb336f3e6e19a257966cbe1576013fe5de7b2c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 65b5106a9c24c533b8db2ba16bbe3b05dccba64f1c41d11deef5aca5a16fe1d5
[INFO] running `Command { std: "docker" "start" "-a" "65b5106a9c24c533b8db2ba16bbe3b05dccba64f1c41d11deef5aca5a16fe1d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling proc-macro2 v1.0.34
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking crossbeam-epoch v0.9.5
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.15
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking array-macro v2.1.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking num-format v0.4.0
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking rayon v1.5.1
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.25
[INFO] [stderr]     Checking varball v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.17s
[INFO] running `Command { std: "docker" "inspect" "65b5106a9c24c533b8db2ba16bbe3b05dccba64f1c41d11deef5aca5a16fe1d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65b5106a9c24c533b8db2ba16bbe3b05dccba64f1c41d11deef5aca5a16fe1d5", kill_on_drop: false }`
[INFO] [stdout] 65b5106a9c24c533b8db2ba16bbe3b05dccba64f1c41d11deef5aca5a16fe1d5
[INFO] checking saghm/varball against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsaghm%2Fvarball" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/saghm/varball 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/saghm/varball
[INFO] finished tweaking git repo https://github.com/saghm/varball
[INFO] tweaked toml for git repo https://github.com/saghm/varball written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/saghm/varball 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 3e13cd92563c4a228a18b0ffdcb40a20cc437e839b22776c4a00c77450e1c949
[INFO] running `Command { std: "docker" "start" "-a" "3e13cd92563c4a228a18b0ffdcb40a20cc437e839b22776c4a00c77450e1c949", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e13cd92563c4a228a18b0ffdcb40a20cc437e839b22776c4a00c77450e1c949", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e13cd92563c4a228a18b0ffdcb40a20cc437e839b22776c4a00c77450e1c949", kill_on_drop: false }`
[INFO] [stdout] 3e13cd92563c4a228a18b0ffdcb40a20cc437e839b22776c4a00c77450e1c949
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 3865b09d17de68773f7630e32460f03cc86cc908cc380896eeb53a8b6daab850
[INFO] running `Command { std: "docker" "start" "-a" "3865b09d17de68773f7630e32460f03cc86cc908cc380896eeb53a8b6daab850", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling proc-macro2 v1.0.34
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.15
[INFO] [stderr]     Checking crossbeam-epoch v0.9.5
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking array-macro v2.1.0
[INFO] [stderr]     Checking num-format v0.4.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking rayon v1.5.1
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.25
[INFO] [stderr]     Checking varball v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.10s
[INFO] running `Command { std: "docker" "inspect" "3865b09d17de68773f7630e32460f03cc86cc908cc380896eeb53a8b6daab850", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3865b09d17de68773f7630e32460f03cc86cc908cc380896eeb53a8b6daab850", kill_on_drop: false }`
[INFO] [stdout] 3865b09d17de68773f7630e32460f03cc86cc908cc380896eeb53a8b6daab850