[INFO] fetching crate cow_vec_item 0.5.1...
[INFO] checking cow_vec_item-0.5.1 against master#158f00a1c5175648af6f6099b075f78d1d014a28 for pr-121251
[INFO] extracting crate cow_vec_item 0.5.1 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate cow_vec_item 0.5.1 on toolchain 158f00a1c5175648af6f6099b075f78d1d014a28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cow_vec_item 0.5.1
[INFO] finished tweaking crates.io crate cow_vec_item 0.5.1
[INFO] tweaked toml for crates.io crate cow_vec_item 0.5.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9ed0366527f67c4d9bdf57f7004caca6485e8a08185d7a9a778ea84cf41011d2
[INFO] running `Command { std: "docker" "start" "-a" "9ed0366527f67c4d9bdf57f7004caca6485e8a08185d7a9a778ea84cf41011d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ed0366527f67c4d9bdf57f7004caca6485e8a08185d7a9a778ea84cf41011d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ed0366527f67c4d9bdf57f7004caca6485e8a08185d7a9a778ea84cf41011d2", kill_on_drop: false }`
[INFO] [stdout] 9ed0366527f67c4d9bdf57f7004caca6485e8a08185d7a9a778ea84cf41011d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+158f00a1c5175648af6f6099b075f78d1d014a28" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b44906e782655a3b83a8efa2e4cdae95dc2272793189785af87eadc4451bbf05
[INFO] running `Command { std: "docker" "start" "-a" "b44906e782655a3b83a8efa2e4cdae95dc2272793189785af87eadc4451bbf05", kill_on_drop: false }`
[INFO] [stderr]     Checking cow_vec_item v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:511:13
[INFO] [stdout]     |
[INFO] [stdout] 511 |         let mut theref = unsafe { &mut *self.cowvec };
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:2:9
[INFO] [stdout]     |
[INFO] [stdout] 2   | #![deny(warnings)]
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(unused_mut)]` 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 `cow_vec_item` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:511:13
[INFO] [stdout]     |
[INFO] [stdout] 511 |         let mut theref = unsafe { &mut *self.cowvec };
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:2:9
[INFO] [stdout]     |
[INFO] [stdout] 2   | #![deny(warnings)]
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(unused_mut)]` 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 `cow_vec_item` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "b44906e782655a3b83a8efa2e4cdae95dc2272793189785af87eadc4451bbf05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b44906e782655a3b83a8efa2e4cdae95dc2272793189785af87eadc4451bbf05", kill_on_drop: false }`
[INFO] [stdout] b44906e782655a3b83a8efa2e4cdae95dc2272793189785af87eadc4451bbf05
[INFO] checking cow_vec_item-0.5.1 against try#b4fc5dbf0bc33be331f9d893db5b3a794f29724a+rustflags=-Dexplicit_range -Dtrait_impl_range -Wrange_syntax -Wrange_bounds for pr-121251
[INFO] extracting crate cow_vec_item 0.5.1 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate cow_vec_item 0.5.1 on toolchain b4fc5dbf0bc33be331f9d893db5b3a794f29724a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cow_vec_item 0.5.1
[INFO] finished tweaking crates.io crate cow_vec_item 0.5.1
[INFO] tweaked toml for crates.io crate cow_vec_item 0.5.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 77308451bd3bb2cc6644a68e3792aad653ee4b1ab940f0438b141fc8ba26ca30
[INFO] running `Command { std: "docker" "start" "-a" "77308451bd3bb2cc6644a68e3792aad653ee4b1ab940f0438b141fc8ba26ca30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "77308451bd3bb2cc6644a68e3792aad653ee4b1ab940f0438b141fc8ba26ca30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77308451bd3bb2cc6644a68e3792aad653ee4b1ab940f0438b141fc8ba26ca30", kill_on_drop: false }`
[INFO] [stdout] 77308451bd3bb2cc6644a68e3792aad653ee4b1ab940f0438b141fc8ba26ca30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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 -Dexplicit_range -Dtrait_impl_range -Wrange_syntax -Wrange_bounds" "-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" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1139b6a26d02509ca96571ffa0aa4552f4178181b8865796c5f896223406611
[INFO] running `Command { std: "docker" "start" "-a" "c1139b6a26d02509ca96571ffa0aa4552f4178181b8865796c5f896223406611", kill_on_drop: false }`
[INFO] [stderr]     Checking cow_vec_item v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: usage of `Range` range syntax
[INFO] [stdout]     --> src/lib.rs:1034:18
[INFO] [stdout]      |
[INFO] [stdout] 1034 |         for _ in 0..fuzz_iterations {
[INFO] [stdout]      |                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]     --> src/lib.rs:2:9
[INFO] [stdout]      |
[INFO] [stdout] 2    | #![deny(warnings)]
[INFO] [stdout]      |         ^^^^^^^^
[INFO] [stdout]      = note: `#[deny(range_syntax)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: usage of `Range` range syntax
[INFO] [stdout]     --> src/lib.rs:1036:22
[INFO] [stdout]      |
[INFO] [stdout] 1036 |             for _ in 0..gen_u32() % 10 {
[INFO] [stdout]      |                      ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: usage of `Range` range syntax
[INFO] [stdout]     --> src/lib.rs:1113:18
[INFO] [stdout]      |
[INFO] [stdout] 1113 |         for _ in 0..ITERATIONS {
[INFO] [stdout]      |                  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: usage of `Range` range syntax
[INFO] [stdout]     --> src/lib.rs:1131:18
[INFO] [stdout]      |
[INFO] [stdout] 1131 |         for _ in 0..ITERATIONS {
[INFO] [stdout]      |                  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: usage of `Range` range syntax
[INFO] [stdout]     --> src/lib.rs:1148:18
[INFO] [stdout]      |
[INFO] [stdout] 1148 |         for _ in 0..ITERATIONS {
[INFO] [stdout]      |                  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: usage of `Range` range syntax
[INFO] [stdout]     --> src/lib.rs:1165:18
[INFO] [stdout]      |
[INFO] [stdout] 1165 |         for _ in 0..ITERATIONS {
[INFO] [stdout]      |                  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: usage of `Range` range syntax
[INFO] [stdout]     --> src/lib.rs:1182:18
[INFO] [stdout]      |
[INFO] [stdout] 1182 |         for _ in 0..ITERATIONS {
[INFO] [stdout]      |                  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: usage of `Range` range syntax
[INFO] [stdout]     --> src/lib.rs:1200:18
[INFO] [stdout]      |
[INFO] [stdout] 1200 |         for _ in 0..ITERATIONS {
[INFO] [stdout]      |                  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: usage of `Range` range syntax
[INFO] [stdout]     --> src/lib.rs:1216:18
[INFO] [stdout]      |
[INFO] [stdout] 1216 |         for _ in 0..ITERATIONS {
[INFO] [stdout]      |                  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:511:13
[INFO] [stdout]     |
[INFO] [stdout] 511 |         let mut theref = unsafe { &mut *self.cowvec };
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:2:9
[INFO] [stdout]     |
[INFO] [stdout] 2   | #![deny(warnings)]
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(unused_mut)]` 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 `cow_vec_item` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:511:13
[INFO] [stdout]     |
[INFO] [stdout] 511 |         let mut theref = unsafe { &mut *self.cowvec };
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(unused_mut)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 10 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cow_vec_item` (lib test) due to 11 previous errors
[INFO] running `Command { std: "docker" "inspect" "c1139b6a26d02509ca96571ffa0aa4552f4178181b8865796c5f896223406611", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1139b6a26d02509ca96571ffa0aa4552f4178181b8865796c5f896223406611", kill_on_drop: false }`
[INFO] [stdout] c1139b6a26d02509ca96571ffa0aa4552f4178181b8865796c5f896223406611
