[INFO] fetching crate sufdb 0.1.7...
[INFO] checking sufdb-0.1.7 against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384
[INFO] extracting crate sufdb 0.1.7 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate sufdb 0.1.7 on toolchain 506512391b1a75ae450d36c9420978402a91abcc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sufdb 0.1.7
[INFO] finished tweaking crates.io crate sufdb 0.1.7
[INFO] tweaked toml for crates.io crate sufdb 0.1.7 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded suffix v1.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 68f4b707210fa39f26f6fee7c344db2b17c65f1e364bcd227bc8e5cfc3e7feda
[INFO] running `Command { std: "docker" "start" "-a" "68f4b707210fa39f26f6fee7c344db2b17c65f1e364bcd227bc8e5cfc3e7feda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68f4b707210fa39f26f6fee7c344db2b17c65f1e364bcd227bc8e5cfc3e7feda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68f4b707210fa39f26f6fee7c344db2b17c65f1e364bcd227bc8e5cfc3e7feda", kill_on_drop: false }`
[INFO] [stdout] 68f4b707210fa39f26f6fee7c344db2b17c65f1e364bcd227bc8e5cfc3e7feda
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4eb3c03ae2474c78909c39747bb40148edb1bd8b3a20e067259aa0d700063988
[INFO] running `Command { std: "docker" "start" "-a" "4eb3c03ae2474c78909c39747bb40148edb1bd8b3a20e067259aa0d700063988", kill_on_drop: false }`
[INFO] [stderr]     Checking suffix v1.3.0
[INFO] [stderr]     Checking sufdb v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0635]: unknown feature `collections`
[INFO] [stdout]  --> src/btree.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(collections)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `collections`
[INFO] [stdout]  --> src/btree.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(collections)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `Cow<'_, [u32]>` is not an iterator
[INFO] [stdout]    --> src/btree.rs:216:22
[INFO] [stdout]     |
[INFO] [stdout] 216 |         for sufid in table {
[INFO] [stdout]     |                      ^^^^^ `Cow<'_, [u32]>` is not an iterator
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `Iterator` is not implemented for `Cow<'_, [u32]>`, which is required by `Cow<'_, [u32]>: IntoIterator`
[INFO] [stdout]     = note: required for `Cow<'_, [u32]>` to implement `IntoIterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `Cow<'_, [u32]>` is not an iterator
[INFO] [stdout]    --> src/btree.rs:216:22
[INFO] [stdout]     |
[INFO] [stdout] 216 |         for sufid in table {
[INFO] [stdout]     |                      ^^^^^ `Cow<'_, [u32]>` is not an iterator
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `Iterator` is not implemented for `Cow<'_, [u32]>`, which is required by `Cow<'_, [u32]>: IntoIterator`
[INFO] [stdout]     = note: required for `Cow<'_, [u32]>` to implement `IntoIterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sufdb` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `sufdb` (lib test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "4eb3c03ae2474c78909c39747bb40148edb1bd8b3a20e067259aa0d700063988", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4eb3c03ae2474c78909c39747bb40148edb1bd8b3a20e067259aa0d700063988", kill_on_drop: false }`
[INFO] [stdout] 4eb3c03ae2474c78909c39747bb40148edb1bd8b3a20e067259aa0d700063988
[INFO] checking sufdb-0.1.7 against try#dae34b759e282c069aa28752564694effd121a63 for pr-125384
[INFO] extracting crate sufdb 0.1.7 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate sufdb 0.1.7 on toolchain dae34b759e282c069aa28752564694effd121a63
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sufdb 0.1.7
[INFO] finished tweaking crates.io crate sufdb 0.1.7
[INFO] tweaked toml for crates.io crate sufdb 0.1.7 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8905ef2a3d074f4135260af16af14ef1ce20435100bc2fa18ea28294f1718c38
[INFO] running `Command { std: "docker" "start" "-a" "8905ef2a3d074f4135260af16af14ef1ce20435100bc2fa18ea28294f1718c38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8905ef2a3d074f4135260af16af14ef1ce20435100bc2fa18ea28294f1718c38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8905ef2a3d074f4135260af16af14ef1ce20435100bc2fa18ea28294f1718c38", kill_on_drop: false }`
[INFO] [stdout] 8905ef2a3d074f4135260af16af14ef1ce20435100bc2fa18ea28294f1718c38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1874861f05c9e131fac9ce1ad3cb470f949dc5c88d0e8c6edc4b6804623c7af
[INFO] running `Command { std: "docker" "start" "-a" "e1874861f05c9e131fac9ce1ad3cb470f949dc5c88d0e8c6edc4b6804623c7af", 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" "e1874861f05c9e131fac9ce1ad3cb470f949dc5c88d0e8c6edc4b6804623c7af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1874861f05c9e131fac9ce1ad3cb470f949dc5c88d0e8c6edc4b6804623c7af", kill_on_drop: false }`
[INFO] [stdout] e1874861f05c9e131fac9ce1ad3cb470f949dc5c88d0e8c6edc4b6804623c7af