[INFO] fetching crate nu-errors 0.44.0...
[INFO] checking nu-errors-0.44.0 against master#94b72d6bebbddb5d17860914c4544f37365e988c for pr-122789
[INFO] extracting crate nu-errors 0.44.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate nu-errors 0.44.0 on toolchain 94b72d6bebbddb5d17860914c4544f37365e988c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+94b72d6bebbddb5d17860914c4544f37365e988c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nu-errors 0.44.0
[INFO] finished tweaking crates.io crate nu-errors 0.44.0
[INFO] tweaked toml for crates.io crate nu-errors 0.44.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+94b72d6bebbddb5d17860914c4544f37365e988c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+94b72d6bebbddb5d17860914c4544f37365e988c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nu-ansi-term v0.44.0
[INFO] [stderr]   Downloaded nu-source v0.44.0
[INFO] [stderr]   Downloaded pretty v0.5.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+94b72d6bebbddb5d17860914c4544f37365e988c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f28e98864495d36560ca56e01aaac2c428b6c6dcc58cd47f475402e75ea37b23
[INFO] running `Command { std: "docker" "start" "-a" "f28e98864495d36560ca56e01aaac2c428b6c6dcc58cd47f475402e75ea37b23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f28e98864495d36560ca56e01aaac2c428b6c6dcc58cd47f475402e75ea37b23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f28e98864495d36560ca56e01aaac2c428b6c6dcc58cd47f475402e75ea37b23", kill_on_drop: false }`
[INFO] [stdout] f28e98864495d36560ca56e01aaac2c428b6c6dcc58cd47f475402e75ea37b23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+94b72d6bebbddb5d17860914c4544f37365e988c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e243122554532b69e183e03971087cb964155f74a1a5daa9d83e8fedc351df0
[INFO] running `Command { std: "docker" "start" "-a" "0e243122554532b69e183e03971087cb964155f74a1a5daa9d83e8fedc351df0", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking typed-arena v1.7.0
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling syn v2.0.55
[INFO] [stderr]     Checking nu-ansi-term v0.44.0
[INFO] [stderr]     Checking pretty v0.5.2
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling derive-new v0.5.9
[INFO] [stderr]    Compiling getset v0.1.2
[INFO] [stderr]     Checking codespan-reporting v0.11.1
[INFO] [stderr]     Checking nu-source v0.44.0
[INFO] [stderr]     Checking serde_yaml v0.8.26
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking toml v0.5.11
[INFO] [stderr]     Checking bigdecimal v0.3.1
[INFO] [stderr]     Checking nu-errors v0.44.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.16s
[INFO] running `Command { std: "docker" "inspect" "0e243122554532b69e183e03971087cb964155f74a1a5daa9d83e8fedc351df0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e243122554532b69e183e03971087cb964155f74a1a5daa9d83e8fedc351df0", kill_on_drop: false }`
[INFO] [stdout] 0e243122554532b69e183e03971087cb964155f74a1a5daa9d83e8fedc351df0
[INFO] checking nu-errors-0.44.0 against try#cb4bf0ee9ea9dac86332c9e48c07269c7edc21dc for pr-122789
[INFO] extracting crate nu-errors 0.44.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate nu-errors 0.44.0 on toolchain cb4bf0ee9ea9dac86332c9e48c07269c7edc21dc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cb4bf0ee9ea9dac86332c9e48c07269c7edc21dc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nu-errors 0.44.0
[INFO] finished tweaking crates.io crate nu-errors 0.44.0
[INFO] tweaked toml for crates.io crate nu-errors 0.44.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cb4bf0ee9ea9dac86332c9e48c07269c7edc21dc" "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" "+cb4bf0ee9ea9dac86332c9e48c07269c7edc21dc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+cb4bf0ee9ea9dac86332c9e48c07269c7edc21dc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae5e286e0fdf976dc01f9e93990045ebabd1005303401f65cbf04a1ecdbd1cd4
[INFO] running `Command { std: "docker" "start" "-a" "ae5e286e0fdf976dc01f9e93990045ebabd1005303401f65cbf04a1ecdbd1cd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae5e286e0fdf976dc01f9e93990045ebabd1005303401f65cbf04a1ecdbd1cd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae5e286e0fdf976dc01f9e93990045ebabd1005303401f65cbf04a1ecdbd1cd4", kill_on_drop: false }`
[INFO] [stdout] ae5e286e0fdf976dc01f9e93990045ebabd1005303401f65cbf04a1ecdbd1cd4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+cb4bf0ee9ea9dac86332c9e48c07269c7edc21dc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 665761efa2b2d0391d8c9843650942b9a4ab97145ed2600979d3cdbdac14db4a
[INFO] running `Command { std: "docker" "start" "-a" "665761efa2b2d0391d8c9843650942b9a4ab97145ed2600979d3cdbdac14db4a", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking typed-arena v1.7.0
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]    Compiling syn v2.0.55
[INFO] [stderr]     Checking nu-ansi-term v0.44.0
[INFO] [stderr]     Checking pretty v0.5.2
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stdout] error[E0515]: cannot return value referencing temporary value
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/pretty-0.5.2/src/lib.rs:590:9
[INFO] [stdout]     |
[INFO] [stdout] 590 | /         RefDoc(match doc {
[INFO] [stdout] 591 | |             // Return 'static references for unit variants to save a small
[INFO] [stdout] 592 | |             // amount of space in the arena
[INFO] [stdout] 593 | |             Doc::Nil => &Doc::Nil,
[INFO] [stdout]     | |                          -------- temporary value created here
[INFO] [stdout] ...   |
[INFO] [stdout] 596 | |             _ => Arena::alloc(self, doc),
[INFO] [stdout] 597 | |         })
[INFO] [stdout]     | |__________^ returns a value referencing data owned by the current function
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0515]: cannot return value referencing temporary value
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/pretty-0.5.2/src/lib.rs:590:9
[INFO] [stdout]     |
[INFO] [stdout] 590 | /         RefDoc(match doc {
[INFO] [stdout] 591 | |             // Return 'static references for unit variants to save a small
[INFO] [stdout] 592 | |             // amount of space in the arena
[INFO] [stdout] 593 | |             Doc::Nil => &Doc::Nil,
[INFO] [stdout] 594 | |             Doc::Space => &Doc::Space,
[INFO] [stdout]     | |                            ---------- temporary value created here
[INFO] [stdout] 595 | |             Doc::Newline => &Doc::Newline,
[INFO] [stdout] 596 | |             _ => Arena::alloc(self, doc),
[INFO] [stdout] 597 | |         })
[INFO] [stdout]     | |__________^ returns a value referencing data owned by the current function
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0515]: cannot return value referencing temporary value
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/pretty-0.5.2/src/lib.rs:590:9
[INFO] [stdout]     |
[INFO] [stdout] 590 | /         RefDoc(match doc {
[INFO] [stdout] 591 | |             // Return 'static references for unit variants to save a small
[INFO] [stdout] 592 | |             // amount of space in the arena
[INFO] [stdout] 593 | |             Doc::Nil => &Doc::Nil,
[INFO] [stdout] 594 | |             Doc::Space => &Doc::Space,
[INFO] [stdout] 595 | |             Doc::Newline => &Doc::Newline,
[INFO] [stdout]     | |                              ------------ temporary value created here
[INFO] [stdout] 596 | |             _ => Arena::alloc(self, doc),
[INFO] [stdout] 597 | |         })
[INFO] [stdout]     | |__________^ returns a value referencing data owned by the current function
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0515`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pretty` (lib) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "665761efa2b2d0391d8c9843650942b9a4ab97145ed2600979d3cdbdac14db4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "665761efa2b2d0391d8c9843650942b9a4ab97145ed2600979d3cdbdac14db4a", kill_on_drop: false }`
[INFO] [stdout] 665761efa2b2d0391d8c9843650942b9a4ab97145ed2600979d3cdbdac14db4a