[INFO] fetching crate atomic-env-rs 0.0.1...
[INFO] checking atomic-env-rs-0.0.1 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] extracting crate atomic-env-rs 0.0.1 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate atomic-env-rs 0.0.1 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate atomic-env-rs 0.0.1
[INFO] finished tweaking crates.io crate atomic-env-rs 0.0.1
[INFO] tweaked toml for crates.io crate atomic-env-rs 0.0.1 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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 25 packages to latest compatible versions
[INFO] [stderr]       Adding dashmap v5.5.3 (latest: v6.0.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0eb8df3c1f356ee17f62a18b07c7535bcbe1d638100428f55e471b029a61c7fb
[INFO] running `Command { std: "docker" "start" "-a" "0eb8df3c1f356ee17f62a18b07c7535bcbe1d638100428f55e471b029a61c7fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0eb8df3c1f356ee17f62a18b07c7535bcbe1d638100428f55e471b029a61c7fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0eb8df3c1f356ee17f62a18b07c7535bcbe1d638100428f55e471b029a61c7fb", kill_on_drop: false }`
[INFO] [stdout] 0eb8df3c1f356ee17f62a18b07c7535bcbe1d638100428f55e471b029a61c7fb
[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=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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a5aaaf228501f586e3ae2e8b753cada18737391ed25485fa15283b4aac4d414
[INFO] running `Command { std: "docker" "start" "-a" "9a5aaaf228501f586e3ae2e8b753cada18737391ed25485fa15283b4aac4d414", kill_on_drop: false }`
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking arrayref v0.3.8
[INFO] [stderr]     Checking dashmap v5.5.3
[INFO] [stderr]     Checking atomic-env-rs v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]    --> src/lib.rs:142:17
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub fn transfer(ctx: &mut Ctx, from: [u8; 32], to: [u8; 32], amount: u128) {
[INFO] [stdout]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from`
[INFO] [stdout]    --> src/lib.rs:142:32
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub fn transfer(ctx: &mut Ctx, from: [u8; 32], to: [u8; 32], amount: u128) {
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_from`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `to`
[INFO] [stdout]    --> src/lib.rs:142:48
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub fn transfer(ctx: &mut Ctx, from: [u8; 32], to: [u8; 32], amount: u128) {
[INFO] [stdout]     |                                                ^^ help: if this is intentional, prefix it with an underscore: `_to`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `amount`
[INFO] [stdout]    --> src/lib.rs:142:62
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub fn transfer(ctx: &mut Ctx, from: [u8; 32], to: [u8; 32], amount: u128) {
[INFO] [stdout]     |                                                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_amount`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Remove` is never constructed
[INFO] [stdout]   --> src/lib.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | enum Operation {
[INFO] [stdout]    |      --------- variant in this enum
[INFO] [stdout] 29 |     Remove,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]    --> src/lib.rs:142:17
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub fn transfer(ctx: &mut Ctx, from: [u8; 32], to: [u8; 32], amount: u128) {
[INFO] [stdout]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from`
[INFO] [stdout]    --> src/lib.rs:142:32
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub fn transfer(ctx: &mut Ctx, from: [u8; 32], to: [u8; 32], amount: u128) {
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_from`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `to`
[INFO] [stdout]    --> src/lib.rs:142:48
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub fn transfer(ctx: &mut Ctx, from: [u8; 32], to: [u8; 32], amount: u128) {
[INFO] [stdout]     |                                                ^^ help: if this is intentional, prefix it with an underscore: `_to`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `amount`
[INFO] [stdout]    --> src/lib.rs:142:62
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub fn transfer(ctx: &mut Ctx, from: [u8; 32], to: [u8; 32], amount: u128) {
[INFO] [stdout]     |                                                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_amount`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Remove` is never constructed
[INFO] [stdout]   --> src/lib.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | enum Operation {
[INFO] [stdout]    |      --------- variant in this enum
[INFO] [stdout] 29 |     Remove,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "9a5aaaf228501f586e3ae2e8b753cada18737391ed25485fa15283b4aac4d414", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a5aaaf228501f586e3ae2e8b753cada18737391ed25485fa15283b4aac4d414", kill_on_drop: false }`
[INFO] [stdout] 9a5aaaf228501f586e3ae2e8b753cada18737391ed25485fa15283b4aac4d414
[INFO] checking atomic-env-rs-0.0.1 against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] extracting crate atomic-env-rs 0.0.1 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate atomic-env-rs 0.0.1 on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate atomic-env-rs 0.0.1
[INFO] finished tweaking crates.io crate atomic-env-rs 0.0.1
[INFO] tweaked toml for crates.io crate atomic-env-rs 0.0.1 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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 25 packages to latest compatible versions
[INFO] [stderr]       Adding dashmap v5.5.3 (latest: v6.0.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "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-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 56c49b0f6ecaeff45a43ba56356e5dba1b8e8bf065de5c2f8492aaabd7856fc0
[INFO] running `Command { std: "docker" "start" "-a" "56c49b0f6ecaeff45a43ba56356e5dba1b8e8bf065de5c2f8492aaabd7856fc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "56c49b0f6ecaeff45a43ba56356e5dba1b8e8bf065de5c2f8492aaabd7856fc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56c49b0f6ecaeff45a43ba56356e5dba1b8e8bf065de5c2f8492aaabd7856fc0", kill_on_drop: false }`
[INFO] [stdout] 56c49b0f6ecaeff45a43ba56356e5dba1b8e8bf065de5c2f8492aaabd7856fc0
[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=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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4bc2fcd1fa9fda1d218744245abaf08d355b2602ecbe5d23485272d84718d219
[INFO] running `Command { std: "docker" "start" "-a" "4bc2fcd1fa9fda1d218744245abaf08d355b2602ecbe5d23485272d84718d219", kill_on_drop: false }`
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking arrayref v0.3.8
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking dashmap v5.5.3
[INFO] [stderr]     Checking atomic-env-rs v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]    --> src/lib.rs:142:17
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub fn transfer(ctx: &mut Ctx, from: [u8; 32], to: [u8; 32], amount: u128) {
[INFO] [stdout]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from`
[INFO] [stdout]    --> src/lib.rs:142:32
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub fn transfer(ctx: &mut Ctx, from: [u8; 32], to: [u8; 32], amount: u128) {
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_from`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `to`
[INFO] [stdout]    --> src/lib.rs:142:48
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub fn transfer(ctx: &mut Ctx, from: [u8; 32], to: [u8; 32], amount: u128) {
[INFO] [stdout]     |                                                ^^ help: if this is intentional, prefix it with an underscore: `_to`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `amount`
[INFO] [stdout]    --> src/lib.rs:142:62
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub fn transfer(ctx: &mut Ctx, from: [u8; 32], to: [u8; 32], amount: u128) {
[INFO] [stdout]     |                                                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_amount`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Remove` is never constructed
[INFO] [stdout]   --> src/lib.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | enum Operation {
[INFO] [stdout]    |      --------- variant in this enum
[INFO] [stdout] 29 |     Remove,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]    --> src/lib.rs:142:17
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub fn transfer(ctx: &mut Ctx, from: [u8; 32], to: [u8; 32], amount: u128) {
[INFO] [stdout]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from`
[INFO] [stdout]    --> src/lib.rs:142:32
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub fn transfer(ctx: &mut Ctx, from: [u8; 32], to: [u8; 32], amount: u128) {
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_from`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `to`
[INFO] [stdout]    --> src/lib.rs:142:48
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub fn transfer(ctx: &mut Ctx, from: [u8; 32], to: [u8; 32], amount: u128) {
[INFO] [stdout]     |                                                ^^ help: if this is intentional, prefix it with an underscore: `_to`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `amount`
[INFO] [stdout]    --> src/lib.rs:142:62
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub fn transfer(ctx: &mut Ctx, from: [u8; 32], to: [u8; 32], amount: u128) {
[INFO] [stdout]     |                                                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_amount`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Remove` is never constructed
[INFO] [stdout]   --> src/lib.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | enum Operation {
[INFO] [stdout]    |      --------- variant in this enum
[INFO] [stdout] 29 |     Remove,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "4bc2fcd1fa9fda1d218744245abaf08d355b2602ecbe5d23485272d84718d219", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bc2fcd1fa9fda1d218744245abaf08d355b2602ecbe5d23485272d84718d219", kill_on_drop: false }`
[INFO] [stdout] 4bc2fcd1fa9fda1d218744245abaf08d355b2602ecbe5d23485272d84718d219