[INFO] cloning repository https://github.com/FreddieRidell/json-vm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FreddieRidell/json-vm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFreddieRidell%2Fjson-vm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFreddieRidell%2Fjson-vm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c844ab200e63b3878399cccfef9e96a2bf86ce88
[INFO] checking FreddieRidell/json-vm against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFreddieRidell%2Fjson-vm" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FreddieRidell/json-vm on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FreddieRidell/json-vm
[INFO] finished tweaking git repo https://github.com/FreddieRidell/json-vm
[INFO] tweaked toml for git repo https://github.com/FreddieRidell/json-vm written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/FreddieRidell/json-vm 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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_json v1.0.38
[INFO] [stderr]   Downloaded proc-macro2 v0.4.27
[INFO] [stderr]   Downloaded serde_derive v1.0.87
[INFO] [stderr]   Downloaded syn v0.15.26
[INFO] [stderr]   Downloaded serde v1.0.87
[INFO] [stderr]   Downloaded quote v0.6.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 88495ad5ae17cfa3aaf6d6a8ead387d6632b4451f0ca7a4166022c3ac7a874d0
[INFO] running `Command { std: "docker" "start" "-a" "88495ad5ae17cfa3aaf6d6a8ead387d6632b4451f0ca7a4166022c3ac7a874d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88495ad5ae17cfa3aaf6d6a8ead387d6632b4451f0ca7a4166022c3ac7a874d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88495ad5ae17cfa3aaf6d6a8ead387d6632b4451f0ca7a4166022c3ac7a874d0", kill_on_drop: false }`
[INFO] [stdout] 88495ad5ae17cfa3aaf6d6a8ead387d6632b4451f0ca7a4166022c3ac7a874d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 80c343851ff0adaa8aa56300852d13cd025270d892a13e268a616649a4d5049a
[INFO] running `Command { std: "docker" "start" "-a" "80c343851ff0adaa8aa56300852d13cd025270d892a13e268a616649a4d5049a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling serde v1.0.87
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling serde_derive v1.0.87
[INFO] [stderr]     Checking serde_json v1.0.38
[INFO] [stderr]     Checking json-vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.65s
[INFO] running `Command { std: "docker" "inspect" "80c343851ff0adaa8aa56300852d13cd025270d892a13e268a616649a4d5049a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80c343851ff0adaa8aa56300852d13cd025270d892a13e268a616649a4d5049a", kill_on_drop: false }`
[INFO] [stdout] 80c343851ff0adaa8aa56300852d13cd025270d892a13e268a616649a4d5049a
[INFO] checking FreddieRidell/json-vm against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFreddieRidell%2Fjson-vm" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FreddieRidell/json-vm on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FreddieRidell/json-vm
[INFO] finished tweaking git repo https://github.com/FreddieRidell/json-vm
[INFO] tweaked toml for git repo https://github.com/FreddieRidell/json-vm written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/FreddieRidell/json-vm 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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c1cf1a071cb5a4d9edf8372ea0416bfcbca7c4b9631ebdfc7e78d05e7f067c3e
[INFO] running `Command { std: "docker" "start" "-a" "c1cf1a071cb5a4d9edf8372ea0416bfcbca7c4b9631ebdfc7e78d05e7f067c3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1cf1a071cb5a4d9edf8372ea0416bfcbca7c4b9631ebdfc7e78d05e7f067c3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1cf1a071cb5a4d9edf8372ea0416bfcbca7c4b9631ebdfc7e78d05e7f067c3e", kill_on_drop: false }`
[INFO] [stdout] c1cf1a071cb5a4d9edf8372ea0416bfcbca7c4b9631ebdfc7e78d05e7f067c3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ca5cabfabe3e04d3527b6abe6336b459af9a6393ec3016a5352fc3c84248b80
[INFO] running `Command { std: "docker" "start" "-a" "3ca5cabfabe3e04d3527b6abe6336b459af9a6393ec3016a5352fc3c84248b80", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling serde v1.0.87
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling serde_derive v1.0.87
[INFO] [stderr]     Checking serde_json v1.0.38
[INFO] [stderr]     Checking json-vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.51s
[INFO] running `Command { std: "docker" "inspect" "3ca5cabfabe3e04d3527b6abe6336b459af9a6393ec3016a5352fc3c84248b80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ca5cabfabe3e04d3527b6abe6336b459af9a6393ec3016a5352fc3c84248b80", kill_on_drop: false }`
[INFO] [stdout] 3ca5cabfabe3e04d3527b6abe6336b459af9a6393ec3016a5352fc3c84248b80