[INFO] fetching crate snap 1.1.0...
[INFO] checking snap-1.1.0 against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-2
[INFO] extracting crate snap 1.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate snap 1.1.0 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 snap 1.1.0
[INFO] finished tweaking crates.io crate snap 1.1.0
[INFO] tweaked toml for crates.io crate snap 1.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate snap 1.1.0 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 01e4b4039b4e86ab2a194b2e6cf780ec23c456d4657b261c7d6fd7cf353cad03
[INFO] running `Command { std: "docker" "start" "-a" "01e4b4039b4e86ab2a194b2e6cf780ec23c456d4657b261c7d6fd7cf353cad03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01e4b4039b4e86ab2a194b2e6cf780ec23c456d4657b261c7d6fd7cf353cad03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01e4b4039b4e86ab2a194b2e6cf780ec23c456d4657b261c7d6fd7cf353cad03", kill_on_drop: false }`
[INFO] [stdout] 01e4b4039b4e86ab2a194b2e6cf780ec23c456d4657b261c7d6fd7cf353cad03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 780b947f0adfe37da3aa254018f998d2cd91922b2aea1b6029e66257c4d0b6b8
[INFO] running `Command { std: "docker" "start" "-a" "780b947f0adfe37da3aa254018f998d2cd91922b2aea1b6029e66257c4d0b6b8", kill_on_drop: false }`
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling snap v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `snap` is imported redundantly
[INFO] [stdout]  --> examples/decompress.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use snap;
[INFO] [stdout]   |     ^^^^ the item `snap` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `snap` is imported redundantly
[INFO] [stdout]  --> examples/compress.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use snap;
[INFO] [stdout]   |     ^^^^ the item `snap` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "780b947f0adfe37da3aa254018f998d2cd91922b2aea1b6029e66257c4d0b6b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "780b947f0adfe37da3aa254018f998d2cd91922b2aea1b6029e66257c4d0b6b8", kill_on_drop: false }`
[INFO] [stdout] 780b947f0adfe37da3aa254018f998d2cd91922b2aea1b6029e66257c4d0b6b8
[INFO] checking snap-1.1.0 against try#36dbcaee1a55543dfc181be52a69d99ff46ff62f for pr-122960-2
[INFO] extracting crate snap 1.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate snap 1.1.0 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 snap 1.1.0
[INFO] finished tweaking crates.io crate snap 1.1.0
[INFO] tweaked toml for crates.io crate snap 1.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate snap 1.1.0 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" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] f3dee42638b14cb35f7766846b8bb06653c2dd6ea7cf5c7a30a31381f040b3fb
[INFO] running `Command { std: "docker" "start" "-a" "f3dee42638b14cb35f7766846b8bb06653c2dd6ea7cf5c7a30a31381f040b3fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3dee42638b14cb35f7766846b8bb06653c2dd6ea7cf5c7a30a31381f040b3fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3dee42638b14cb35f7766846b8bb06653c2dd6ea7cf5c7a30a31381f040b3fb", kill_on_drop: false }`
[INFO] [stdout] f3dee42638b14cb35f7766846b8bb06653c2dd6ea7cf5c7a30a31381f040b3fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 1fb13831cacfc272e9b2047604e5002726cb5c2a607023aa2576a4c8b523f8cd
[INFO] running `Command { std: "docker" "start" "-a" "1fb13831cacfc272e9b2047604e5002726cb5c2a607023aa2576a4c8b523f8cd", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] skipping non-2021 edition `2018`
[INFO] running `Command { std: "docker" "inspect" "1fb13831cacfc272e9b2047604e5002726cb5c2a607023aa2576a4c8b523f8cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fb13831cacfc272e9b2047604e5002726cb5c2a607023aa2576a4c8b523f8cd", kill_on_drop: false }`
[INFO] [stdout] 1fb13831cacfc272e9b2047604e5002726cb5c2a607023aa2576a4c8b523f8cd