[INFO] fetching crate sophia_c14n 0.8.0-alpha.3...
[INFO] checking sophia_c14n-0.8.0-alpha.3 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate sophia_c14n 0.8.0-alpha.3 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate sophia_c14n 0.8.0-alpha.3 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 crates.io crate sophia_c14n 0.8.0-alpha.3
[INFO] finished tweaking crates.io crate sophia_c14n 0.8.0-alpha.3
[INFO] tweaked toml for crates.io crate sophia_c14n 0.8.0-alpha.3 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate sophia_c14n 0.8.0-alpha.3 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 unicode-ident v1.0.8
[INFO] [stderr]   Downloaded oxiri v0.2.2
[INFO] [stderr]   Downloaded sophia_iri v0.8.0-alpha.3
[INFO] [stderr]   Downloaded sophia_api v0.8.0-alpha.3
[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] a703497599ab4746b421af5fd8a638b96b1d48eec3d72e4ea3a69b82082341f7
[INFO] running `Command { std: "docker" "start" "-a" "a703497599ab4746b421af5fd8a638b96b1d48eec3d72e4ea3a69b82082341f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a703497599ab4746b421af5fd8a638b96b1d48eec3d72e4ea3a69b82082341f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a703497599ab4746b421af5fd8a638b96b1d48eec3d72e4ea3a69b82082341f7", kill_on_drop: false }`
[INFO] [stdout] a703497599ab4746b421af5fd8a638b96b1d48eec3d72e4ea3a69b82082341f7
[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] a11c4720e12bdda5a003c77cd2d018e37ddb6fd48cf2925a6cd110a01de522a5
[INFO] running `Command { std: "docker" "start" "-a" "a11c4720e12bdda5a003c77cd2d018e37ddb6fd48cf2925a6cd110a01de522a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling thiserror v1.0.47
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]     Checking oxiri v0.2.2
[INFO] [stderr]     Checking mownstr v0.2.1
[INFO] [stderr]     Checking cpufeatures v0.2.9
[INFO] [stderr]     Checking resiter v0.5.0
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking sha2 v0.10.7
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.29
[INFO] [stderr]    Compiling thiserror-impl v1.0.47
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]     Checking sophia_iri v0.8.0-alpha.3
[INFO] [stderr]     Checking sophia_api v0.8.0-alpha.3
[INFO] [stderr]     Checking sophia_c14n v0.8.0-alpha.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.26s
[INFO] running `Command { std: "docker" "inspect" "a11c4720e12bdda5a003c77cd2d018e37ddb6fd48cf2925a6cd110a01de522a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a11c4720e12bdda5a003c77cd2d018e37ddb6fd48cf2925a6cd110a01de522a5", kill_on_drop: false }`
[INFO] [stdout] a11c4720e12bdda5a003c77cd2d018e37ddb6fd48cf2925a6cd110a01de522a5
[INFO] checking sophia_c14n-0.8.0-alpha.3 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate sophia_c14n 0.8.0-alpha.3 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate sophia_c14n 0.8.0-alpha.3 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sophia_c14n 0.8.0-alpha.3
[INFO] finished tweaking crates.io crate sophia_c14n 0.8.0-alpha.3
[INFO] tweaked toml for crates.io crate sophia_c14n 0.8.0-alpha.3 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate sophia_c14n 0.8.0-alpha.3 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f73bd6f3360f8f2a09eb1b628b33af8cab0ff684304dc92c3051f92272f04ea9
[INFO] running `Command { std: "docker" "start" "-a" "f73bd6f3360f8f2a09eb1b628b33af8cab0ff684304dc92c3051f92272f04ea9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f73bd6f3360f8f2a09eb1b628b33af8cab0ff684304dc92c3051f92272f04ea9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f73bd6f3360f8f2a09eb1b628b33af8cab0ff684304dc92c3051f92272f04ea9", kill_on_drop: false }`
[INFO] [stdout] f73bd6f3360f8f2a09eb1b628b33af8cab0ff684304dc92c3051f92272f04ea9
[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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 001e3eb0156029efb3b5c5bdfd33171824813d7327c5b95cada8a4fa6103d502
[INFO] running `Command { std: "docker" "start" "-a" "001e3eb0156029efb3b5c5bdfd33171824813d7327c5b95cada8a4fa6103d502", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling thiserror v1.0.47
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]     Checking oxiri v0.2.2
[INFO] [stderr]     Checking resiter v0.5.0
[INFO] [stderr]     Checking cpufeatures v0.2.9
[INFO] [stderr]     Checking mownstr v0.2.1
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking sha2 v0.10.7
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.29
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling thiserror-impl v1.0.47
[INFO] [stderr]     Checking sophia_iri v0.8.0-alpha.3
[INFO] [stderr]     Checking sophia_api v0.8.0-alpha.3
[INFO] [stderr]     Checking sophia_c14n v0.8.0-alpha.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.11s
[INFO] running `Command { std: "docker" "inspect" "001e3eb0156029efb3b5c5bdfd33171824813d7327c5b95cada8a4fa6103d502", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "001e3eb0156029efb3b5c5bdfd33171824813d7327c5b95cada8a4fa6103d502", kill_on_drop: false }`
[INFO] [stdout] 001e3eb0156029efb3b5c5bdfd33171824813d7327c5b95cada8a4fa6103d502