[INFO] cloning repository https://github.com/arzg/fjord-repl
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/arzg/fjord-repl" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farzg%2Ffjord-repl", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farzg%2Ffjord-repl'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6fce289c3f85ebe7bf1af2cf99cd6220edbb9d6e
[INFO] checking arzg/fjord-repl against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farzg%2Ffjord-repl" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/arzg/fjord-repl on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/arzg/fjord-repl
[INFO] finished tweaking git repo https://github.com/arzg/fjord-repl
[INFO] tweaked toml for git repo https://github.com/arzg/fjord-repl written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/arzg/fjord-repl already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded beef v0.4.4
[INFO] [stderr]   Downloaded smol_str v0.1.16
[INFO] [stderr]   Downloaded logos-derive v0.11.5
[INFO] [stderr]   Downloaded thin-dst v1.1.0
[INFO] [stderr]   Downloaded rowan v0.10.0
[INFO] [stderr]   Downloaded logos v0.11.4
[INFO] [stderr]   Downloaded num_enum_derive v0.5.1
[INFO] [stderr]   Downloaded num_enum v0.5.1
[INFO] [stderr]   Downloaded text-size v1.0.0
[INFO] [stderr]   Downloaded fjord v0.4.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 38f1deb2dfe2f517d0f66ad63f9724a5e6d0122e17f051c4c6be999efd6f11de
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "38f1deb2dfe2f517d0f66ad63f9724a5e6d0122e17f051c4c6be999efd6f11de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38f1deb2dfe2f517d0f66ad63f9724a5e6d0122e17f051c4c6be999efd6f11de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38f1deb2dfe2f517d0f66ad63f9724a5e6d0122e17f051c4c6be999efd6f11de", kill_on_drop: false }`
[INFO] [stdout] 38f1deb2dfe2f517d0f66ad63f9724a5e6d0122e17f051c4c6be999efd6f11de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5c7a1a1b1c9df12ac29a8c4e0d16dadec22d9988fd0ec7a4d7937d86d4f9b42f
[INFO] running `Command { std: "docker" "start" "-a" "5c7a1a1b1c9df12ac29a8c4e0d16dadec22d9988fd0ec7a4d7937d86d4f9b42f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling beef v0.4.4
[INFO] [stderr]     Checking thin-dst v1.1.0
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]     Checking text-size v1.0.0
[INFO] [stderr]     Checking rowan v0.10.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling num_enum_derive v0.5.1
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]    Compiling logos-derive v0.11.5
[INFO] [stderr]     Checking num_enum v0.5.1
[INFO] [stderr]     Checking logos v0.11.4
[INFO] [stderr]     Checking fjord v0.4.4
[INFO] [stderr]     Checking fjord-repl v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 06s
[INFO] running `Command { std: "docker" "inspect" "5c7a1a1b1c9df12ac29a8c4e0d16dadec22d9988fd0ec7a4d7937d86d4f9b42f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c7a1a1b1c9df12ac29a8c4e0d16dadec22d9988fd0ec7a4d7937d86d4f9b42f", kill_on_drop: false }`
[INFO] [stdout] 5c7a1a1b1c9df12ac29a8c4e0d16dadec22d9988fd0ec7a4d7937d86d4f9b42f