[INFO] cloning repository https://github.com/adriannic/avl-tree-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/adriannic/avl-tree-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadriannic%2Favl-tree-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadriannic%2Favl-tree-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 851b005a5675d3b06dc5a03936acf95761498462
[INFO] checking adriannic/avl-tree-rs against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadriannic%2Favl-tree-rs" "/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/adriannic/avl-tree-rs 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/adriannic/avl-tree-rs
[INFO] finished tweaking git repo https://github.com/adriannic/avl-tree-rs
[INFO] tweaked toml for git repo https://github.com/adriannic/avl-tree-rs written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/adriannic/avl-tree-rs 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] 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] d1c3175bd1104bd18dc424d5f0953b5ea23074be9684823b6c8468cfc33438bf
[INFO] running `Command { std: "docker" "start" "-a" "d1c3175bd1104bd18dc424d5f0953b5ea23074be9684823b6c8468cfc33438bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1c3175bd1104bd18dc424d5f0953b5ea23074be9684823b6c8468cfc33438bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1c3175bd1104bd18dc424d5f0953b5ea23074be9684823b6c8468cfc33438bf", kill_on_drop: false }`
[INFO] [stdout] d1c3175bd1104bd18dc424d5f0953b5ea23074be9684823b6c8468cfc33438bf
[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] 5eddb9fb7315fdfd1bc37a7ee83c3e4c2365430be166d7587cd0fe6dae350ee9
[INFO] running `Command { std: "docker" "start" "-a" "5eddb9fb7315fdfd1bc37a7ee83c3e4c2365430be166d7587cd0fe6dae350ee9", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.195
[INFO] [stderr]    Compiling serde_json v1.0.111
[INFO] [stderr]    Compiling libc v0.2.152
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking ryu v1.0.16
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking walkdir v2.4.0
[INFO] [stderr]     Checking avl-tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking rayon v1.8.1
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]     Checking regex-automata v0.4.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking criterion-plot v0.4.5
[INFO] [stderr]     Checking plotters v0.3.5
[INFO] [stderr]    Compiling serde_derive v1.0.195
[INFO] [stderr]     Checking regex v1.10.3
[INFO] [stderr]     Checking csv v1.3.0
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.07s
[INFO] running `Command { std: "docker" "inspect" "5eddb9fb7315fdfd1bc37a7ee83c3e4c2365430be166d7587cd0fe6dae350ee9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5eddb9fb7315fdfd1bc37a7ee83c3e4c2365430be166d7587cd0fe6dae350ee9", kill_on_drop: false }`
[INFO] [stdout] 5eddb9fb7315fdfd1bc37a7ee83c3e4c2365430be166d7587cd0fe6dae350ee9
[INFO] checking adriannic/avl-tree-rs against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadriannic%2Favl-tree-rs" "/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/adriannic/avl-tree-rs 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/adriannic/avl-tree-rs
[INFO] finished tweaking git repo https://github.com/adriannic/avl-tree-rs
[INFO] tweaked toml for git repo https://github.com/adriannic/avl-tree-rs written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/adriannic/avl-tree-rs 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] 3bdd7b6846ff5066a19197d5f1bd263da0715f5e4bf8d7f91a214cb74e9eeaba
[INFO] running `Command { std: "docker" "start" "-a" "3bdd7b6846ff5066a19197d5f1bd263da0715f5e4bf8d7f91a214cb74e9eeaba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3bdd7b6846ff5066a19197d5f1bd263da0715f5e4bf8d7f91a214cb74e9eeaba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bdd7b6846ff5066a19197d5f1bd263da0715f5e4bf8d7f91a214cb74e9eeaba", kill_on_drop: false }`
[INFO] [stdout] 3bdd7b6846ff5066a19197d5f1bd263da0715f5e4bf8d7f91a214cb74e9eeaba
[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] cb7f472f9d15cfa0178a7619b04363c6ec325b9f6f277eae13f9417751318308
[INFO] running `Command { std: "docker" "start" "-a" "cb7f472f9d15cfa0178a7619b04363c6ec325b9f6f277eae13f9417751318308", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.195
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]    Compiling libc v0.2.152
[INFO] [stderr]     Checking ryu v1.0.16
[INFO] [stderr]    Compiling serde_json v1.0.111
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking walkdir v2.4.0
[INFO] [stderr]     Checking avl-tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking rayon v1.8.1
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking regex-automata v0.4.5
[INFO] [stderr]     Checking plotters v0.3.5
[INFO] [stderr]     Checking criterion-plot v0.4.5
[INFO] [stderr]    Compiling serde_derive v1.0.195
[INFO] [stderr]     Checking regex v1.10.3
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking csv v1.3.0
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.72s
[INFO] running `Command { std: "docker" "inspect" "cb7f472f9d15cfa0178a7619b04363c6ec325b9f6f277eae13f9417751318308", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb7f472f9d15cfa0178a7619b04363c6ec325b9f6f277eae13f9417751318308", kill_on_drop: false }`
[INFO] [stdout] cb7f472f9d15cfa0178a7619b04363c6ec325b9f6f277eae13f9417751318308