[INFO] fetching crate nu_plugin_tree 0.18.1...
[INFO] checking nu_plugin_tree-0.18.1 against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] extracting crate nu_plugin_tree 0.18.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate nu_plugin_tree 0.18.1 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 crates.io crate nu_plugin_tree 0.18.1
[INFO] finished tweaking crates.io crate nu_plugin_tree 0.18.1
[INFO] tweaked toml for crates.io crate nu_plugin_tree 0.18.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate nu_plugin_tree 0.18.1 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded codespan-reporting v0.9.5
[INFO] [stderr]   Downloaded byte-unit v3.1.4
[INFO] [stderr]   Downloaded directories v1.0.2
[INFO] [stderr]   Downloaded query_interface v0.3.5
[INFO] [stderr]   Downloaded typetag-impl v0.1.5
[INFO] [stderr]   Downloaded nu-parser v0.18.1
[INFO] [stderr]   Downloaded nu-protocol v0.18.1
[INFO] [stderr]   Downloaded erased-serde v0.3.12
[INFO] [stderr]   Downloaded natural v0.5.0
[INFO] [stderr]   Downloaded typetag v0.1.5
[INFO] [stderr]   Downloaded tint v1.0.1
[INFO] [stderr]   Downloaded rust-stemmers v1.2.0
[INFO] [stderr]   Downloaded nu-source v0.18.1
[INFO] [stderr]   Downloaded derive-new v0.5.8
[INFO] [stderr]   Downloaded shellexpand v2.0.0
[INFO] [stderr]   Downloaded pretty v0.5.2
[INFO] [stderr]   Downloaded ptree v0.2.1
[INFO] [stderr]   Downloaded nu-errors v0.18.1
[INFO] [stderr]   Downloaded typed-arena v1.7.0
[INFO] [stderr]   Downloaded nu-plugin v0.18.1
[INFO] [stderr]   Downloaded nu-value-ext v0.18.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", 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] c0a1b19bba36202788ff9b42fd6fd317b336a2a242e370b505427334bb7d0a7b
[INFO] running `Command { std: "docker" "start" "-a" "c0a1b19bba36202788ff9b42fd6fd317b336a2a242e370b505427334bb7d0a7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0a1b19bba36202788ff9b42fd6fd317b336a2a242e370b505427334bb7d0a7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0a1b19bba36202788ff9b42fd6fd317b336a2a242e370b505427334bb7d0a7b", kill_on_drop: false }`
[INFO] [stdout] c0a1b19bba36202788ff9b42fd6fd317b336a2a242e370b505427334bb7d0a7b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac9981ef26a2f65c7069199ef2e4f659eabd34d9c3467ca07452b98eb9fb48d1
[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" "ac9981ef26a2f65c7069199ef2e4f659eabd34d9c3467ca07452b98eb9fb48d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling inventory v0.1.8
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking dtoa v0.4.6
[INFO] [stderr]     Checking either v1.6.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking byte-unit v3.1.4
[INFO] [stderr]     Checking query_interface v0.3.5
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling indexmap v1.5.1
[INFO] [stderr]     Checking pretty v0.5.2
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking tint v1.0.1
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking directories v1.0.2
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking shellexpand v2.0.0
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking ordered-float v1.1.0
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking serde-hjson v0.8.2
[INFO] [stderr]    Compiling ctor v0.1.15
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling getset v0.1.1
[INFO] [stderr]    Compiling inventory-impl v0.1.8
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]    Compiling typetag-impl v0.1.5
[INFO] [stderr]     Checking codespan-reporting v0.9.5
[INFO] [stderr]     Checking erased-serde v0.3.12
[INFO] [stderr]     Checking serde_yaml v0.8.13
[INFO] [stderr]     Checking rust-stemmers v1.2.0
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking serde-value v0.5.3
[INFO] [stderr]     Checking nu-source v0.18.1
[INFO] [stderr]     Checking typetag v0.1.5
[INFO] [stderr]     Checking bigdecimal v0.1.2
[INFO] [stderr]     Checking nu-errors v0.18.1
[INFO] [stderr]     Checking config v0.9.3
[INFO] [stderr]     Checking ptree v0.2.1
[INFO] [stderr]     Checking natural v0.5.0
[INFO] [stderr]     Checking nu-protocol v0.18.1
[INFO] [stderr]     Checking nu-parser v0.18.1
[INFO] [stderr]     Checking nu-value-ext v0.18.1
[INFO] [stderr]     Checking nu-plugin v0.18.1
[INFO] [stderr]     Checking nu_plugin_tree v0.18.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 27s
[INFO] running `Command { std: "docker" "inspect" "ac9981ef26a2f65c7069199ef2e4f659eabd34d9c3467ca07452b98eb9fb48d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac9981ef26a2f65c7069199ef2e4f659eabd34d9c3467ca07452b98eb9fb48d1", kill_on_drop: false }`
[INFO] [stdout] ac9981ef26a2f65c7069199ef2e4f659eabd34d9c3467ca07452b98eb9fb48d1