[INFO] fetching crate jlog 0.2.1...
[INFO] checking jlog-0.2.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate jlog 0.2.1 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate jlog 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 jlog 0.2.1
[INFO] finished tweaking crates.io crate jlog 0.2.1
[INFO] tweaked toml for crates.io crate jlog 0.2.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate jlog 0.2.1 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 signal-hook-registry v1.2.0
[INFO] [stderr]   Downloaded ryu v1.0.4
[INFO] [stderr]   Downloaded itoa v0.4.5
[INFO] [stderr]   Downloaded arc-swap v0.4.6
[INFO] [stderr]   Downloaded hermit-abi v0.1.13
[INFO] [stderr]   Downloaded signal-hook v0.1.15
[INFO] [stderr]   Downloaded serde v1.0.110
[INFO] [stderr]   Downloaded serde_json v1.0.53
[INFO] [stderr]   Downloaded libc v0.2.70
[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] 997ae7d1c08710724728721612e49e05212da39ed84c0fba753ba488be5509d6
[INFO] running `Command { std: "docker" "start" "-a" "997ae7d1c08710724728721612e49e05212da39ed84c0fba753ba488be5509d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "997ae7d1c08710724728721612e49e05212da39ed84c0fba753ba488be5509d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "997ae7d1c08710724728721612e49e05212da39ed84c0fba753ba488be5509d6", kill_on_drop: false }`
[INFO] [stdout] 997ae7d1c08710724728721612e49e05212da39ed84c0fba753ba488be5509d6
[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] 82a3b360fee2372bc822d06c34acb1a845357123f95bb1444f46ef9b5f4ecf07
[INFO] running `Command { std: "docker" "start" "-a" "82a3b360fee2372bc822d06c34acb1a845357123f95bb1444f46ef9b5f4ecf07", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]     Checking arc-swap v0.4.6
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking signal-hook v0.1.15
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]     Checking jlog v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.14s
[INFO] running `Command { std: "docker" "inspect" "82a3b360fee2372bc822d06c34acb1a845357123f95bb1444f46ef9b5f4ecf07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82a3b360fee2372bc822d06c34acb1a845357123f95bb1444f46ef9b5f4ecf07", kill_on_drop: false }`
[INFO] [stdout] 82a3b360fee2372bc822d06c34acb1a845357123f95bb1444f46ef9b5f4ecf07
[INFO] checking jlog-0.2.1 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate jlog 0.2.1 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate jlog 0.2.1 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 jlog 0.2.1
[INFO] finished tweaking crates.io crate jlog 0.2.1
[INFO] tweaked toml for crates.io crate jlog 0.2.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate jlog 0.2.1 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-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 76e8f9f4101ca1372f12745f428fe6f1899285c5a9011aa111034cfe053695f8
[INFO] running `Command { std: "docker" "start" "-a" "76e8f9f4101ca1372f12745f428fe6f1899285c5a9011aa111034cfe053695f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76e8f9f4101ca1372f12745f428fe6f1899285c5a9011aa111034cfe053695f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76e8f9f4101ca1372f12745f428fe6f1899285c5a9011aa111034cfe053695f8", kill_on_drop: false }`
[INFO] [stdout] 76e8f9f4101ca1372f12745f428fe6f1899285c5a9011aa111034cfe053695f8
[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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01d277be10e8cc003b1af8a543569b48f3e8474b11524a70bc755b5685ae002f
[INFO] running `Command { std: "docker" "start" "-a" "01d277be10e8cc003b1af8a543569b48f3e8474b11524a70bc755b5685ae002f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]     Checking arc-swap v0.4.6
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking signal-hook v0.1.15
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]     Checking jlog v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.94s
[INFO] running `Command { std: "docker" "inspect" "01d277be10e8cc003b1af8a543569b48f3e8474b11524a70bc755b5685ae002f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01d277be10e8cc003b1af8a543569b48f3e8474b11524a70bc755b5685ae002f", kill_on_drop: false }`
[INFO] [stdout] 01d277be10e8cc003b1af8a543569b48f3e8474b11524a70bc755b5685ae002f