[INFO] fetching crate engine 0.0.0...
[INFO] checking engine-0.0.0 against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-3
[INFO] extracting crate engine 0.0.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate engine 0.0.0 on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate engine 0.0.0
[INFO] finished tweaking crates.io crate engine 0.0.0
[INFO] tweaked toml for crates.io crate engine 0.0.0 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 20 packages
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.57)
[INFO] [stderr]       Adding synstructure v0.12.6 (latest: v0.13.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74bcdd9d4e4c69198a203167a92fc09f0091b19598e81fc021deaff09cfac71c
[INFO] running `Command { std: "docker" "start" "-a" "74bcdd9d4e4c69198a203167a92fc09f0091b19598e81fc021deaff09cfac71c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74bcdd9d4e4c69198a203167a92fc09f0091b19598e81fc021deaff09cfac71c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74bcdd9d4e4c69198a203167a92fc09f0091b19598e81fc021deaff09cfac71c", kill_on_drop: false }`
[INFO] [stdout] 74bcdd9d4e4c69198a203167a92fc09f0091b19598e81fc021deaff09cfac71c
[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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 429d27b992d85c6a3e55a3b2972ea0f939cfeb739ea42136a571a2530e0a4c1a
[INFO] running `Command { std: "docker" "start" "-a" "429d27b992d85c6a3e55a3b2972ea0f939cfeb739ea42136a571a2530e0a4c1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]     Checking backtrace v0.3.71
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking engine v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `failure` is imported redundantly
[INFO] [stdout]   --> src/error.rs:1:15
[INFO] [stdout]    |
[INFO] [stdout] 1  | use failure::{self, Backtrace, Context, Fail};
[INFO] [stdout]    |               ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | extern crate failure;
[INFO] [stdout]    | --------------------- the item `failure` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: the item `failure` is imported redundantly
[INFO] [stdout]   --> src/error.rs:1:15
[INFO] [stdout]    |
[INFO] [stdout] 1  | use failure::{self, Backtrace, Context, Fail};
[INFO] [stdout]    |               ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | extern crate failure;
[INFO] [stdout]    | --------------------- the item `failure` is already imported here
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:5:24
[INFO] [stdout]    |
[INFO] [stdout] 5  | #![cfg_attr(test, deny(warnings))]
[INFO] [stdout]    |                        ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(unused_imports)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `engine` (lib test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "429d27b992d85c6a3e55a3b2972ea0f939cfeb739ea42136a571a2530e0a4c1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "429d27b992d85c6a3e55a3b2972ea0f939cfeb739ea42136a571a2530e0a4c1a", kill_on_drop: false }`
[INFO] [stdout] 429d27b992d85c6a3e55a3b2972ea0f939cfeb739ea42136a571a2530e0a4c1a
[INFO] checking engine-0.0.0 against try#36dbcaee1a55543dfc181be52a69d99ff46ff62f for pr-122960-3
[INFO] extracting crate engine 0.0.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate engine 0.0.0 on toolchain 36dbcaee1a55543dfc181be52a69d99ff46ff62f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate engine 0.0.0
[INFO] finished tweaking crates.io crate engine 0.0.0
[INFO] tweaked toml for crates.io crate engine 0.0.0 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" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "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" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "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" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6257835f852eacb7e6c6ef9a6fc32044ad99be62657480e6d2b0f2f7b3d34ed3
[INFO] running `Command { std: "docker" "start" "-a" "6257835f852eacb7e6c6ef9a6fc32044ad99be62657480e6d2b0f2f7b3d34ed3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6257835f852eacb7e6c6ef9a6fc32044ad99be62657480e6d2b0f2f7b3d34ed3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6257835f852eacb7e6c6ef9a6fc32044ad99be62657480e6d2b0f2f7b3d34ed3", kill_on_drop: false }`
[INFO] [stdout] 6257835f852eacb7e6c6ef9a6fc32044ad99be62657480e6d2b0f2f7b3d34ed3
[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" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac46298811b5c54b7a48275259e385e6c18df380f22744b309912de48d5803bd
[INFO] running `Command { std: "docker" "start" "-a" "ac46298811b5c54b7a48275259e385e6c18df380f22744b309912de48d5803bd", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] no edition found in manifest, probably 2015, skipping
[INFO] running `Command { std: "docker" "inspect" "ac46298811b5c54b7a48275259e385e6c18df380f22744b309912de48d5803bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac46298811b5c54b7a48275259e385e6c18df380f22744b309912de48d5803bd", kill_on_drop: false }`
[INFO] [stdout] ac46298811b5c54b7a48275259e385e6c18df380f22744b309912de48d5803bd