[INFO] fetching crate loan_ec 0.2.1...
[INFO] checking loan_ec-0.2.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate loan_ec 0.2.1 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate loan_ec 0.2.1 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 loan_ec 0.2.1
[INFO] finished tweaking crates.io crate loan_ec 0.2.1
[INFO] tweaked toml for crates.io crate loan_ec 0.2.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 32 packages
[INFO] [stderr]       Adding approx v0.2.1 (latest: v0.5.1)
[INFO] [stderr]       Adding cf_dist_utils v0.8.1 (latest: v0.10.0)
[INFO] [stderr]       Adding cf_functions v0.14.0 (latest: v0.16.0)
[INFO] [stderr]       Adding fang_oost v0.13.8 (latest: v0.15.1)
[INFO] [stderr]       Adding fang_oost v0.14.2 (latest: v0.15.1)
[INFO] [stderr]       Adding num v0.2.1 (latest: v0.4.1)
[INFO] [stderr]       Adding num-bigint v0.2.6 (latest: v0.4.4)
[INFO] [stderr]       Adding num-complex v0.2.4 (latest: v0.4.5)
[INFO] [stderr]       Adding num-rational v0.2.4 (latest: v0.4.1)
[INFO] [stderr]       Adding roots v0.0.5 (latest: v0.0.8)
[INFO] [stderr]       Adding special v0.7.8 (latest: v0.10.3)
[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 num v0.2.1
[INFO] [stderr]   Downloaded num-rational v0.2.4
[INFO] [stderr]   Downloaded fang_oost v0.14.2
[INFO] [stderr]   Downloaded cf_functions v0.14.0
[INFO] [stderr]   Downloaded cf_dist_utils v0.8.1
[INFO] [stderr]   Downloaded special v0.7.8
[INFO] [stderr]   Downloaded num-complex v0.2.4
[INFO] [stderr]   Downloaded roots v0.0.5
[INFO] [stderr]   Downloaded approx v0.2.1
[INFO] [stderr]   Downloaded fang_oost v0.13.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] e7941c608d0502a4033e3f40fcdb12c88dc7020e83609fc08d57ebe242ad29b7
[INFO] running `Command { std: "docker" "start" "-a" "e7941c608d0502a4033e3f40fcdb12c88dc7020e83609fc08d57ebe242ad29b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7941c608d0502a4033e3f40fcdb12c88dc7020e83609fc08d57ebe242ad29b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7941c608d0502a4033e3f40fcdb12c88dc7020e83609fc08d57ebe242ad29b7", kill_on_drop: false }`
[INFO] [stdout] e7941c608d0502a4033e3f40fcdb12c88dc7020e83609fc08d57ebe242ad29b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 52371e926931b1242d142d96d65bc2407c3f795397861573c1a3e5b5d588b9cf
[INFO] running `Command { std: "docker" "start" "-a" "52371e926931b1242d142d96d65bc2407c3f795397861573c1a3e5b5d588b9cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking roots v0.0.5
[INFO] [stderr]     Checking special v0.7.8
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking approx v0.2.1
[INFO] [stderr]     Checking num-iter v0.1.44
[INFO] [stderr]     Checking cf_functions v0.14.0
[INFO] [stderr]     Checking loan_ec v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking fang_oost v0.13.8
[INFO] [stderr]     Checking fang_oost v0.14.2
[INFO] [stderr]     Checking cf_dist_utils v0.8.1
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.71s
[INFO] running `Command { std: "docker" "inspect" "52371e926931b1242d142d96d65bc2407c3f795397861573c1a3e5b5d588b9cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52371e926931b1242d142d96d65bc2407c3f795397861573c1a3e5b5d588b9cf", kill_on_drop: false }`
[INFO] [stdout] 52371e926931b1242d142d96d65bc2407c3f795397861573c1a3e5b5d588b9cf
[INFO] checking loan_ec-0.2.1 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate loan_ec 0.2.1 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate loan_ec 0.2.1 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 crates.io crate loan_ec 0.2.1
[INFO] finished tweaking crates.io crate loan_ec 0.2.1
[INFO] tweaked toml for crates.io crate loan_ec 0.2.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] e53c4f50aacd67e023f1cc12a817a696b6b89225ea5c52a6c9297c4951cc8934
[INFO] running `Command { std: "docker" "start" "-a" "e53c4f50aacd67e023f1cc12a817a696b6b89225ea5c52a6c9297c4951cc8934", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e53c4f50aacd67e023f1cc12a817a696b6b89225ea5c52a6c9297c4951cc8934", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e53c4f50aacd67e023f1cc12a817a696b6b89225ea5c52a6c9297c4951cc8934", kill_on_drop: false }`
[INFO] [stdout] e53c4f50aacd67e023f1cc12a817a696b6b89225ea5c52a6c9297c4951cc8934
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 345f282d0adf7739699f23f1f5e16b37f26104b3e83491dbb0f246098728b85d
[INFO] running `Command { std: "docker" "start" "-a" "345f282d0adf7739699f23f1f5e16b37f26104b3e83491dbb0f246098728b85d", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking roots v0.0.5
[INFO] [stderr]     Checking special v0.7.8
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking approx v0.2.1
[INFO] [stderr]     Checking num-iter v0.1.44
[INFO] [stderr]     Checking cf_functions v0.14.0
[INFO] [stderr]     Checking loan_ec v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking fang_oost v0.13.8
[INFO] [stderr]     Checking fang_oost v0.14.2
[INFO] [stderr]     Checking cf_dist_utils v0.8.1
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.95s
[INFO] running `Command { std: "docker" "inspect" "345f282d0adf7739699f23f1f5e16b37f26104b3e83491dbb0f246098728b85d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "345f282d0adf7739699f23f1f5e16b37f26104b3e83491dbb0f246098728b85d", kill_on_drop: false }`
[INFO] [stdout] 345f282d0adf7739699f23f1f5e16b37f26104b3e83491dbb0f246098728b85d