[INFO] cloning repository https://github.com/GabrielSac/MerkleTree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GabrielSac/MerkleTree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGabrielSac%2FMerkleTree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGabrielSac%2FMerkleTree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ad55a7c7ee257dabdbb690c4295ded4d8a81fe04
[INFO] checking GabrielSac/MerkleTree against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGabrielSac%2FMerkleTree" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/GabrielSac/MerkleTree 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/GabrielSac/MerkleTree
[INFO] finished tweaking git repo https://github.com/GabrielSac/MerkleTree
[INFO] tweaked toml for git repo https://github.com/GabrielSac/MerkleTree written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/GabrielSac/MerkleTree 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 rust-releases-io v0.22.1
[INFO] [stderr]   Downloaded kstring v1.0.6
[INFO] [stderr]   Downloaded rust-releases-rust-dist v0.22.4
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[INFO] [stderr]   Downloaded rust-releases-core v0.22.1
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[INFO] [stderr]   Downloaded toml_edit v0.13.4
[INFO] [stderr]   Downloaded rust-releases-rust-changelog v0.22.2
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[INFO] [stderr]   Downloaded web-sys v0.3.68
[INFO] [stderr]   Downloaded comfy-table v4.1.1
[INFO] [stderr]   Downloaded aws-sdk-sts v0.15.0
[INFO] [stderr]   Downloaded aws-smithy-json v0.45.0
[INFO] [stderr]   Downloaded aws-config v0.15.0
[INFO] [stderr]   Downloaded aws-sigv4 v0.15.1
[INFO] [stderr]   Downloaded aws-smithy-client v0.45.0
[INFO] [stderr]   Downloaded aws-smithy-types v0.45.0
[INFO] [stderr]   Downloaded aws-smithy-http v0.45.0
[INFO] [stderr]   Downloaded aws-sdk-sso v0.15.0
[INFO] [stderr]   Downloaded aws-smithy-query v0.45.0
[INFO] [stderr]   Downloaded aws-endpoint v0.15.0
[INFO] [stderr]   Downloaded aws-http v0.15.0
[INFO] [stderr]   Downloaded aws-smithy-xml v0.45.0
[INFO] [stderr]   Downloaded aws-types v0.15.0
[INFO] [stderr]   Downloaded aws-sig-auth v0.15.0
[INFO] [stderr]   Downloaded aws-smithy-async v0.45.0
[INFO] [stderr]   Downloaded aws-smithy-http-tower v0.45.0
[INFO] [stderr]   Downloaded aws-smithy-eventstream v0.45.0
[INFO] [stderr]   Downloaded semver v1.0.21
[INFO] [stderr]   Downloaded wildmatch v2.3.0
[INFO] [stderr]   Downloaded cargo-msrv v0.15.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 519de071613660ebe84a5e9067cb5d4932561f7984e051f150ceb9615591aa14
[INFO] running `Command { std: "docker" "start" "-a" "519de071613660ebe84a5e9067cb5d4932561f7984e051f150ceb9615591aa14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "519de071613660ebe84a5e9067cb5d4932561f7984e051f150ceb9615591aa14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "519de071613660ebe84a5e9067cb5d4932561f7984e051f150ceb9615591aa14", kill_on_drop: false }`
[INFO] [stdout] 519de071613660ebe84a5e9067cb5d4932561f7984e051f150ceb9615591aa14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] e89d610dbb15154199ab49476d80da5ad87d0f0c4e076da32235dfe0ab6adb29
[INFO] running `Command { std: "docker" "start" "-a" "e89d610dbb15154199ab49476d80da5ad87d0f0c4e076da32235dfe0ab6adb29", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking smallvec v1.13.1
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[INFO] [stderr]    Compiling num-conv v0.1.0
[INFO] [stderr]     Checking powerfmt v0.2.0
[INFO] [stderr]    Compiling time-core v0.1.2
[INFO] [stderr]     Checking deranged v0.3.11
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling crc32fast v1.4.0
[INFO] [stderr]    Compiling time-macros v0.2.17
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking indexmap v2.2.3
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[INFO] [stderr]    Compiling syn v2.0.48
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[INFO] [stderr]    Compiling rustc_version v0.4.0
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[INFO] [stderr]    Compiling signal-hook v0.3.17
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[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]     Checking aws-smithy-types v0.45.0
[INFO] [stderr]     Checking md-5 v0.10.6
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[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]    Compiling camino v1.1.6
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[INFO] [stderr]     Checking aws-smithy-json v0.45.0
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
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[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]    Compiling pin-project-internal v1.1.4
[INFO] [stderr]    Compiling openssl-macros v0.1.1
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[INFO] [stderr]     Checking tokio v1.36.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking pin-project v1.1.4
[INFO] [stderr]    Compiling strum_macros v0.21.1
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[INFO] [stderr]     Checking rust-releases-io v0.22.1
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[INFO] [stderr]     Checking tracing-serde v0.1.3
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[INFO] [stderr]     Checking rust-releases-rust-dist v0.22.4
[INFO] [stderr]     Checking rust-releases v0.22.2
[INFO] [stderr]     Checking cargo-msrv v0.15.1
[INFO] [stderr]     Checking merkle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 52s
[INFO] running `Command { std: "docker" "inspect" "e89d610dbb15154199ab49476d80da5ad87d0f0c4e076da32235dfe0ab6adb29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e89d610dbb15154199ab49476d80da5ad87d0f0c4e076da32235dfe0ab6adb29", kill_on_drop: false }`
[INFO] [stdout] e89d610dbb15154199ab49476d80da5ad87d0f0c4e076da32235dfe0ab6adb29